newgrf_gui.cpp

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00001 /* $Id: newgrf_gui.cpp 26653 2014-06-17 19:14:59Z frosch $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "error.h"
00014 #include "settings_gui.h"
00015 #include "newgrf.h"
00016 #include "strings_func.h"
00017 #include "window_func.h"
00018 #include "gamelog.h"
00019 #include "settings_type.h"
00020 #include "settings_func.h"
00021 #include "widgets/dropdown_type.h"
00022 #include "widgets/dropdown_func.h"
00023 #include "network/network.h"
00024 #include "network/network_content.h"
00025 #include "sortlist_type.h"
00026 #include "stringfilter_type.h"
00027 #include "querystring_gui.h"
00028 #include "core/geometry_func.hpp"
00029 #include "newgrf_text.h"
00030 #include "textfile_gui.h"
00031 #include "tilehighlight_func.h"
00032 #include "fios.h"
00033 
00034 #include "widgets/newgrf_widget.h"
00035 #include "widgets/misc_widget.h"
00036 
00037 #include "table/sprites.h"
00038 
00039 /* Maximum number of NewGRFs that may be loaded. Six reserved slots are:
00040  * 0 - config, 1 - sound, 2 - base, 3 - logos, 4 - climate, 5 - extra */
00041 static const int MAX_NEWGRFS = MAX_FILE_SLOTS - 6;
00042 
00046 void ShowNewGRFError()
00047 {
00048   /* Do not show errors when entering the main screen */
00049   if (_game_mode == GM_MENU) return;
00050 
00051   for (const GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
00052     /* We only want to show fatal errors */
00053     if (c->error == NULL || c->error->severity != STR_NEWGRF_ERROR_MSG_FATAL) continue;
00054 
00055     SetDParam   (0, c->error->custom_message == NULL ? c->error->message : STR_JUST_RAW_STRING);
00056     SetDParamStr(1, c->error->custom_message);
00057     SetDParamStr(2, c->filename);
00058     SetDParamStr(3, c->error->data);
00059     for (uint i = 0; i < lengthof(c->error->param_value); i++) {
00060       SetDParam(4 + i, c->error->param_value[i]);
00061     }
00062     ShowErrorMessage(STR_NEWGRF_ERROR_FATAL_POPUP, INVALID_STRING_ID, WL_CRITICAL);
00063     break;
00064   }
00065 }
00066 
00067 static void ShowNewGRFInfo(const GRFConfig *c, uint x, uint y, uint right, uint bottom, bool show_params)
00068 {
00069   if (c->error != NULL) {
00070     char message[512];
00071     SetDParamStr(0, c->error->custom_message); // is skipped by built-in messages
00072     SetDParamStr(1, c->filename);
00073     SetDParamStr(2, c->error->data);
00074     for (uint i = 0; i < lengthof(c->error->param_value); i++) {
00075       SetDParam(3 + i, c->error->param_value[i]);
00076     }
00077     GetString(message, c->error->custom_message == NULL ? c->error->message : STR_JUST_RAW_STRING, lastof(message));
00078 
00079     SetDParamStr(0, message);
00080     y = DrawStringMultiLine(x, right, y, bottom, c->error->severity);
00081   }
00082 
00083   /* Draw filename or not if it is not known (GRF sent over internet) */
00084   if (c->filename != NULL) {
00085     SetDParamStr(0, c->filename);
00086     y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_FILENAME);
00087   }
00088 
00089   /* Prepare and draw GRF ID */
00090   char buff[256];
00091   snprintf(buff, lengthof(buff), "%08X", BSWAP32(c->ident.grfid));
00092   SetDParamStr(0, buff);
00093   y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_GRF_ID);
00094 
00095   if ((_settings_client.gui.newgrf_developer_tools || _settings_client.gui.newgrf_show_old_versions) && c->version != 0) {
00096     SetDParam(0, c->version);
00097     y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_VERSION);
00098   }
00099   if ((_settings_client.gui.newgrf_developer_tools || _settings_client.gui.newgrf_show_old_versions) && c->min_loadable_version != 0) {
00100     SetDParam(0, c->min_loadable_version);
00101     y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_MIN_VERSION);
00102   }
00103 
00104   /* Prepare and draw MD5 sum */
00105   md5sumToString(buff, lastof(buff), c->ident.md5sum);
00106   SetDParamStr(0, buff);
00107   y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_MD5SUM);
00108 
00109   /* Show GRF parameter list */
00110   if (show_params) {
00111     if (c->num_params > 0) {
00112       GRFBuildParamList(buff, c, lastof(buff));
00113       SetDParam(0, STR_JUST_RAW_STRING);
00114       SetDParamStr(1, buff);
00115     } else {
00116       SetDParam(0, STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY_NONE);
00117     }
00118     y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_PARAMETER);
00119 
00120     /* Draw the palette of the NewGRF */
00121     if (c->palette & GRFP_BLT_32BPP) {
00122       SetDParamStr(0, (c->palette & GRFP_USE_WINDOWS) ? "Legacy (W) / 32 bpp" : "Default (D) / 32 bpp");
00123     } else {
00124       SetDParamStr(0, (c->palette & GRFP_USE_WINDOWS) ? "Legacy (W)" : "Default (D)");
00125     }
00126     y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_PALETTE);
00127   }
00128 
00129   /* Show flags */
00130   if (c->status == GCS_NOT_FOUND)       y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_NOT_FOUND);
00131   if (c->status == GCS_DISABLED)        y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_DISABLED);
00132   if (HasBit(c->flags, GCF_INVALID))    y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_INCOMPATIBLE);
00133   if (HasBit(c->flags, GCF_COMPATIBLE)) y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_COMPATIBLE_LOADED);
00134 
00135   /* Draw GRF info if it exists */
00136   if (!StrEmpty(c->GetDescription())) {
00137     SetDParamStr(0, c->GetDescription());
00138     y = DrawStringMultiLine(x, right, y, bottom, STR_BLACK_RAW_STRING);
00139   } else {
00140     y = DrawStringMultiLine(x, right, y, bottom, STR_NEWGRF_SETTINGS_NO_INFO);
00141   }
00142 }
00143 
00147 struct NewGRFParametersWindow : public Window {
00148   static GRFParameterInfo dummy_parameter_info; 
00149   GRFConfig *grf_config; 
00150   uint clicked_button;   
00151   bool clicked_increase; 
00152   bool clicked_dropdown; 
00153   bool closing_dropdown; 
00154   int timeout;           
00155   uint clicked_row;      
00156   int line_height;       
00157   Scrollbar *vscroll;
00158   bool action14present;  
00159   bool editable;         
00160 
00161   NewGRFParametersWindow(WindowDesc *desc, GRFConfig *c, bool editable) : Window(desc),
00162     grf_config(c),
00163     clicked_button(UINT_MAX),
00164     clicked_dropdown(false),
00165     closing_dropdown(false),
00166     timeout(0),
00167     clicked_row(UINT_MAX),
00168     editable(editable)
00169   {
00170     this->action14present = (c->num_valid_params != lengthof(c->param) || c->param_info.Length() != 0);
00171 
00172     this->CreateNestedTree();
00173     this->vscroll = this->GetScrollbar(WID_NP_SCROLLBAR);
00174     this->GetWidget<NWidgetStacked>(WID_NP_SHOW_NUMPAR)->SetDisplayedPlane(this->action14present ? SZSP_HORIZONTAL : 0);
00175     this->GetWidget<NWidgetStacked>(WID_NP_SHOW_DESCRIPTION)->SetDisplayedPlane(this->action14present ? 0 : SZSP_HORIZONTAL);
00176     this->FinishInitNested();  // Initializes 'this->line_height' as side effect.
00177 
00178     this->SetWidgetDisabledState(WID_NP_RESET, !this->editable);
00179 
00180     this->InvalidateData();
00181   }
00182 
00188   static GRFParameterInfo *GetDummyParameterInfo(uint nr)
00189   {
00190     dummy_parameter_info.param_nr = nr;
00191     return &dummy_parameter_info;
00192   }
00193 
00194   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00195   {
00196     switch (widget) {
00197       case WID_NP_NUMPAR_DEC:
00198       case WID_NP_NUMPAR_INC: {
00199         size->width = size->height = FONT_HEIGHT_NORMAL;
00200         break;
00201       }
00202 
00203       case WID_NP_NUMPAR: {
00204         SetDParamMaxValue(0, lengthof(this->grf_config->param));
00205         Dimension d = GetStringBoundingBox(this->GetWidget<NWidgetCore>(widget)->widget_data);
00206         d.width += padding.width;
00207         d.height += padding.height;
00208         *size = maxdim(*size, d);
00209         break;
00210       }
00211 
00212       case WID_NP_BACKGROUND:
00213         this->line_height = FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM;
00214 
00215         resize->width = 1;
00216         resize->height = this->line_height;
00217         size->height = 5 * this->line_height;
00218         break;
00219 
00220       case WID_NP_DESCRIPTION:
00221         /* Minimum size of 4 lines. The 500 is the default size of the window. */
00222         Dimension suggestion = {500 - WD_FRAMERECT_LEFT - WD_FRAMERECT_RIGHT, FONT_HEIGHT_NORMAL * 4 + WD_TEXTPANEL_TOP + WD_TEXTPANEL_BOTTOM};
00223         for (uint i = 0; i < this->grf_config->param_info.Length(); i++) {
00224           const GRFParameterInfo *par_info = this->grf_config->param_info[i];
00225           if (par_info == NULL) continue;
00226           const char *desc = GetGRFStringFromGRFText(par_info->desc);
00227           if (desc == NULL) continue;
00228           Dimension d = GetStringMultiLineBoundingBox(desc, suggestion);
00229           d.height += WD_TEXTPANEL_TOP + WD_TEXTPANEL_BOTTOM;
00230           suggestion = maxdim(d, suggestion);
00231         }
00232         size->height = suggestion.height;
00233         break;
00234     }
00235   }
00236 
00237   virtual void SetStringParameters(int widget) const
00238   {
00239     switch (widget) {
00240       case WID_NP_NUMPAR:
00241         SetDParam(0, this->vscroll->GetCount());
00242         break;
00243     }
00244   }
00245 
00246   virtual void DrawWidget(const Rect &r, int widget) const
00247   {
00248     if (widget == WID_NP_DESCRIPTION) {
00249       const GRFParameterInfo *par_info = (this->clicked_row < this->grf_config->param_info.Length()) ? this->grf_config->param_info[this->clicked_row] : NULL;
00250       if (par_info == NULL) return;
00251       const char *desc = GetGRFStringFromGRFText(par_info->desc);
00252       if (desc == NULL) return;
00253       DrawStringMultiLine(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_TEXTPANEL_TOP, r.bottom - WD_TEXTPANEL_BOTTOM, desc, TC_BLACK);
00254       return;
00255     } else if (widget != WID_NP_BACKGROUND) {
00256       return;
00257     }
00258 
00259     bool rtl = _current_text_dir == TD_RTL;
00260     uint buttons_left = rtl ? r.right - SETTING_BUTTON_WIDTH - 3 : r.left + 4;
00261     uint text_left    = r.left + (rtl ? WD_FRAMERECT_LEFT : SETTING_BUTTON_WIDTH + 8);
00262     uint text_right   = r.right - (rtl ? SETTING_BUTTON_WIDTH + 8 : WD_FRAMERECT_RIGHT);
00263 
00264     int y = r.top;
00265     int button_y_offset = (this->line_height - SETTING_BUTTON_HEIGHT) / 2;
00266     for (uint i = this->vscroll->GetPosition(); this->vscroll->IsVisible(i) && i < this->vscroll->GetCount(); i++) {
00267       GRFParameterInfo *par_info = (i < this->grf_config->param_info.Length()) ? this->grf_config->param_info[i] : NULL;
00268       if (par_info == NULL) par_info = GetDummyParameterInfo(i);
00269       uint32 current_value = par_info->GetValue(this->grf_config);
00270       bool selected = (i == this->clicked_row);
00271 
00272       if (par_info->type == PTYPE_BOOL) {
00273         DrawBoolButton(buttons_left, y + button_y_offset, current_value != 0, this->editable);
00274         SetDParam(2, par_info->GetValue(this->grf_config) == 0 ? STR_CONFIG_SETTING_OFF : STR_CONFIG_SETTING_ON);
00275       } else if (par_info->type == PTYPE_UINT_ENUM) {
00276         if (par_info->complete_labels) {
00277           DrawDropDownButton(buttons_left, y + button_y_offset, COLOUR_YELLOW, this->clicked_row == i && this->clicked_dropdown, this->editable);
00278         } else {
00279           DrawArrowButtons(buttons_left, y + button_y_offset, COLOUR_YELLOW, (this->clicked_button == i) ? 1 + (this->clicked_increase != rtl) : 0, this->editable && current_value > par_info->min_value, this->editable && current_value < par_info->max_value);
00280         }
00281         SetDParam(2, STR_JUST_INT);
00282         SetDParam(3, current_value);
00283         if (par_info->value_names.Contains(current_value)) {
00284           const char *label = GetGRFStringFromGRFText(par_info->value_names.Find(current_value)->second);
00285           if (label != NULL) {
00286             SetDParam(2, STR_JUST_RAW_STRING);
00287             SetDParamStr(3, label);
00288           }
00289         }
00290       }
00291 
00292       const char *name = GetGRFStringFromGRFText(par_info->name);
00293       if (name != NULL) {
00294         SetDParam(0, STR_JUST_RAW_STRING);
00295         SetDParamStr(1, name);
00296       } else {
00297         SetDParam(0, STR_NEWGRF_PARAMETERS_DEFAULT_NAME);
00298         SetDParam(1, i + 1);
00299       }
00300 
00301       DrawString(text_left, text_right, y + WD_MATRIX_TOP, STR_NEWGRF_PARAMETERS_SETTING, selected ? TC_WHITE : TC_LIGHT_BLUE);
00302       y += this->line_height;
00303     }
00304   }
00305 
00306   virtual void OnPaint()
00307   {
00308     if (this->closing_dropdown) {
00309       this->closing_dropdown = false;
00310       this->clicked_dropdown = false;
00311     }
00312     this->DrawWidgets();
00313   }
00314 
00315   virtual void OnClick(Point pt, int widget, int click_count)
00316   {
00317     switch (widget) {
00318       case WID_NP_NUMPAR_DEC:
00319         if (this->editable && !this->action14present && this->grf_config->num_params > 0) {
00320           this->grf_config->num_params--;
00321           this->InvalidateData();
00322           SetWindowDirty(WC_GAME_OPTIONS, WN_GAME_OPTIONS_NEWGRF_STATE);
00323         }
00324         break;
00325 
00326       case WID_NP_NUMPAR_INC: {
00327         GRFConfig *c = this->grf_config;
00328         if (this->editable && !this->action14present && c->num_params < c->num_valid_params) {
00329           c->param[c->num_params++] = 0;
00330           this->InvalidateData();
00331           SetWindowDirty(WC_GAME_OPTIONS, WN_GAME_OPTIONS_NEWGRF_STATE);
00332         }
00333         break;
00334       }
00335 
00336       case WID_NP_BACKGROUND: {
00337         if (!this->editable) break;
00338         uint num = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NP_BACKGROUND);
00339         if (num >= this->vscroll->GetCount()) break;
00340         if (this->clicked_row != num) {
00341           DeleteChildWindows(WC_QUERY_STRING);
00342           HideDropDownMenu(this);
00343           this->clicked_row = num;
00344           this->clicked_dropdown = false;
00345         }
00346 
00347         const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_NP_BACKGROUND);
00348         int x = pt.x - wid->pos_x;
00349         if (_current_text_dir == TD_RTL) x = wid->current_x - 1 - x;
00350         x -= 4;
00351 
00352         GRFParameterInfo *par_info = (num < this->grf_config->param_info.Length()) ? this->grf_config->param_info[num] : NULL;
00353         if (par_info == NULL) par_info = GetDummyParameterInfo(num);
00354 
00355         /* One of the arrows is clicked */
00356         uint32 old_val = par_info->GetValue(this->grf_config);
00357         if (par_info->type != PTYPE_BOOL && IsInsideMM(x, 0, SETTING_BUTTON_WIDTH) && par_info->complete_labels) {
00358           if (this->clicked_dropdown) {
00359             /* unclick the dropdown */
00360             HideDropDownMenu(this);
00361             this->clicked_dropdown = false;
00362             this->closing_dropdown = false;
00363           } else {
00364             const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_NP_BACKGROUND);
00365             int rel_y = (pt.y - (int)wid->pos_y) % this->line_height;
00366 
00367             Rect wi_rect;
00368             wi_rect.left = pt.x - (_current_text_dir == TD_RTL ? SETTING_BUTTON_WIDTH - 1 - x : x);;
00369             wi_rect.right = wi_rect.left + SETTING_BUTTON_WIDTH - 1;
00370             wi_rect.top = pt.y - rel_y + (this->line_height - SETTING_BUTTON_HEIGHT) / 2;
00371             wi_rect.bottom = wi_rect.top + SETTING_BUTTON_HEIGHT - 1;
00372 
00373             /* For dropdowns we also have to check the y position thoroughly, the mouse may not above the just opening dropdown */
00374             if (pt.y >= wi_rect.top && pt.y <= wi_rect.bottom) {
00375               this->clicked_dropdown = true;
00376               this->closing_dropdown = false;
00377 
00378               DropDownList *list = new DropDownList();
00379               for (uint32 i = par_info->min_value; i <= par_info->max_value; i++) {
00380                 *list->Append() = new DropDownListCharStringItem(GetGRFStringFromGRFText(par_info->value_names.Find(i)->second), i, false);
00381               }
00382 
00383               ShowDropDownListAt(this, list, old_val, -1, wi_rect, COLOUR_ORANGE, true);
00384             }
00385           }
00386         } else if (IsInsideMM(x, 0, SETTING_BUTTON_WIDTH)) {
00387           uint32 val = old_val;
00388           if (par_info->type == PTYPE_BOOL) {
00389             val = !val;
00390           } else {
00391             if (x >= SETTING_BUTTON_WIDTH / 2) {
00392               /* Increase button clicked */
00393               if (val < par_info->max_value) val++;
00394               this->clicked_increase = true;
00395             } else {
00396               /* Decrease button clicked */
00397               if (val > par_info->min_value) val--;
00398               this->clicked_increase = false;
00399             }
00400           }
00401           if (val != old_val) {
00402             par_info->SetValue(this->grf_config, val);
00403 
00404             this->clicked_button = num;
00405             this->timeout = 5;
00406           }
00407         } else if (par_info->type == PTYPE_UINT_ENUM && !par_info->complete_labels && click_count >= 2) {
00408           /* Display a query box so users can enter a custom value. */
00409           SetDParam(0, old_val);
00410           ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, this, CS_NUMERAL, QSF_NONE);
00411         }
00412         this->SetDirty();
00413         break;
00414       }
00415 
00416       case WID_NP_RESET:
00417         if (!this->editable) break;
00418         this->grf_config->SetParameterDefaults();
00419         this->InvalidateData();
00420         SetWindowDirty(WC_GAME_OPTIONS, WN_GAME_OPTIONS_NEWGRF_STATE);
00421         break;
00422 
00423       case WID_NP_ACCEPT:
00424         delete this;
00425         break;
00426     }
00427   }
00428 
00429   virtual void OnQueryTextFinished(char *str)
00430   {
00431     if (StrEmpty(str)) return;
00432     int32 value = atoi(str);
00433     GRFParameterInfo *par_info = ((uint)this->clicked_row < this->grf_config->param_info.Length()) ? this->grf_config->param_info[this->clicked_row] : NULL;
00434     if (par_info == NULL) par_info = GetDummyParameterInfo(this->clicked_row);
00435     uint32 val = Clamp<uint32>(value, par_info->min_value, par_info->max_value);
00436     par_info->SetValue(this->grf_config, val);
00437     this->SetDirty();
00438   }
00439 
00440   virtual void OnDropdownSelect(int widget, int index)
00441   {
00442     assert(this->clicked_dropdown);
00443     GRFParameterInfo *par_info = ((uint)this->clicked_row < this->grf_config->param_info.Length()) ? this->grf_config->param_info[this->clicked_row] : NULL;
00444     if (par_info == NULL) par_info = GetDummyParameterInfo(this->clicked_row);
00445     par_info->SetValue(this->grf_config, index);
00446     this->SetDirty();
00447   }
00448 
00449   virtual void OnDropdownClose(Point pt, int widget, int index, bool instant_close)
00450   {
00451     /* We cannot raise the dropdown button just yet. OnClick needs some hint, whether
00452      * the same dropdown button was clicked again, and then not open the dropdown again.
00453      * So, we only remember that it was closed, and process it on the next OnPaint, which is
00454      * after OnClick. */
00455     assert(this->clicked_dropdown);
00456     this->closing_dropdown = true;
00457     this->SetDirty();
00458   }
00459 
00460   virtual void OnResize()
00461   {
00462     this->vscroll->SetCapacityFromWidget(this, WID_NP_BACKGROUND);
00463   }
00464 
00470   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00471   {
00472     if (!gui_scope) return;
00473     if (!this->action14present) {
00474       this->SetWidgetDisabledState(WID_NP_NUMPAR_DEC, !this->editable || this->grf_config->num_params == 0);
00475       this->SetWidgetDisabledState(WID_NP_NUMPAR_INC, !this->editable || this->grf_config->num_params >= this->grf_config->num_valid_params);
00476     }
00477 
00478     this->vscroll->SetCount(this->action14present ? this->grf_config->num_valid_params : this->grf_config->num_params);
00479     if (this->clicked_row != UINT_MAX && this->clicked_row >= this->vscroll->GetCount()) {
00480       this->clicked_row = UINT_MAX;
00481       DeleteChildWindows(WC_QUERY_STRING);
00482     }
00483   }
00484 
00485   virtual void OnTick()
00486   {
00487     if (--this->timeout == 0) {
00488       this->clicked_button = UINT_MAX;
00489       this->SetDirty();
00490     }
00491   }
00492 };
00493 GRFParameterInfo NewGRFParametersWindow::dummy_parameter_info(0);
00494 
00495 
00496 static const NWidgetPart _nested_newgrf_parameter_widgets[] = {
00497   NWidget(NWID_HORIZONTAL),
00498     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
00499     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_NEWGRF_PARAMETERS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00500     NWidget(WWT_DEFSIZEBOX, COLOUR_MAUVE),
00501   EndContainer(),
00502   NWidget(NWID_SELECTION, INVALID_COLOUR, WID_NP_SHOW_NUMPAR),
00503     NWidget(WWT_PANEL, COLOUR_MAUVE), SetResize(1, 0), SetFill(1, 0), SetPIP(4, 0, 4),
00504       NWidget(NWID_HORIZONTAL), SetPIP(4, 0, 4),
00505         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_NP_NUMPAR_DEC), SetMinimalSize(12, 12), SetDataTip(AWV_DECREASE, STR_NULL),
00506         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_NP_NUMPAR_INC), SetMinimalSize(12, 12), SetDataTip(AWV_INCREASE, STR_NULL),
00507         NWidget(WWT_TEXT, COLOUR_MAUVE, WID_NP_NUMPAR), SetResize(1, 0), SetFill(1, 0), SetPadding(0, 0, 0, 4), SetDataTip(STR_NEWGRF_PARAMETERS_NUM_PARAM, STR_NULL),
00508       EndContainer(),
00509     EndContainer(),
00510   EndContainer(),
00511   NWidget(NWID_HORIZONTAL),
00512     NWidget(WWT_MATRIX, COLOUR_MAUVE, WID_NP_BACKGROUND), SetMinimalSize(188, 182), SetResize(1, 1), SetFill(1, 0), SetMatrixDataTip(1, 0, STR_NULL), SetScrollbar(WID_NP_SCROLLBAR),
00513     NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, WID_NP_SCROLLBAR),
00514   EndContainer(),
00515   NWidget(NWID_SELECTION, INVALID_COLOUR, WID_NP_SHOW_DESCRIPTION),
00516     NWidget(WWT_PANEL, COLOUR_MAUVE, WID_NP_DESCRIPTION), SetResize(1, 0), SetFill(1, 0),
00517     EndContainer(),
00518   EndContainer(),
00519   NWidget(NWID_HORIZONTAL),
00520     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
00521       NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_NP_ACCEPT), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NEWGRF_PARAMETERS_CLOSE, STR_NULL),
00522       NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_NP_RESET), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NEWGRF_PARAMETERS_RESET, STR_NEWGRF_PARAMETERS_RESET_TOOLTIP),
00523     EndContainer(),
00524     NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
00525   EndContainer(),
00526 };
00527 
00529 static WindowDesc _newgrf_parameters_desc(
00530   WDP_CENTER, "settings_newgrf_config", 500, 208,
00531   WC_GRF_PARAMETERS, WC_NONE,
00532   0,
00533   _nested_newgrf_parameter_widgets, lengthof(_nested_newgrf_parameter_widgets)
00534 );
00535 
00536 static void OpenGRFParameterWindow(GRFConfig *c, bool editable)
00537 {
00538   DeleteWindowByClass(WC_GRF_PARAMETERS);
00539   new NewGRFParametersWindow(&_newgrf_parameters_desc, c, editable);
00540 }
00541 
00543 struct NewGRFTextfileWindow : public TextfileWindow {
00544   const GRFConfig *grf_config; 
00545 
00546   NewGRFTextfileWindow(TextfileType file_type, const GRFConfig *c) : TextfileWindow(file_type), grf_config(c)
00547   {
00548     const char *textfile = this->grf_config->GetTextfile(file_type);
00549     this->LoadTextfile(textfile, NEWGRF_DIR);
00550   }
00551 
00552   /* virtual */ void SetStringParameters(int widget) const
00553   {
00554     if (widget == WID_TF_CAPTION) {
00555       SetDParam(0, STR_CONTENT_TYPE_NEWGRF);
00556       SetDParamStr(1, this->grf_config->GetName());
00557     }
00558   }
00559 };
00560 
00561 void ShowNewGRFTextfileWindow(TextfileType file_type, const GRFConfig *c)
00562 {
00563   DeleteWindowByClass(WC_TEXTFILE);
00564   new NewGRFTextfileWindow(file_type, c);
00565 }
00566 
00567 static GRFPresetList _grf_preset_list;
00568 
00569 class DropDownListPresetItem : public DropDownListItem {
00570 public:
00571   DropDownListPresetItem(int result) : DropDownListItem(result, false) {}
00572 
00573   virtual ~DropDownListPresetItem() {}
00574 
00575   bool Selectable() const
00576   {
00577     return true;
00578   }
00579 
00580   void Draw(int left, int right, int top, int bottom, bool sel, int bg_colour) const
00581   {
00582     DrawString(left + 2, right + 2, top, _grf_preset_list[this->result], sel ? TC_WHITE : TC_BLACK);
00583   }
00584 };
00585 
00586 static void NewGRFConfirmationCallback(Window *w, bool confirmed);
00587 
00591 struct NewGRFWindow : public Window, NewGRFScanCallback {
00592   typedef GUIList<const GRFConfig *, StringFilter &> GUIGRFConfigList;
00593 
00594   static const uint EDITBOX_MAX_SIZE   =  50;
00595 
00596   static Listing   last_sorting;   
00597   static Filtering last_filtering; 
00598   static GUIGRFConfigList::SortFunction   * const sorter_funcs[]; 
00599   static GUIGRFConfigList::FilterFunction * const filter_funcs[]; 
00600 
00601   GUIGRFConfigList avails;    
00602   const GRFConfig *avail_sel; 
00603   int avail_pos;              
00604   StringFilter string_filter; 
00605   QueryString filter_editbox; 
00606 
00607   GRFConfig *actives;         
00608   GRFConfig *active_sel;      
00609 
00610   GRFConfig **orig_list;      
00611   bool editable;              
00612   bool show_params;           
00613   bool execute;               
00614   int preset;                 
00615   int active_over;            
00616 
00617   Scrollbar *vscroll;
00618   Scrollbar *vscroll2;
00619 
00620   NewGRFWindow(WindowDesc *desc, bool editable, bool show_params, bool execute, GRFConfig **orig_list) : Window(desc), filter_editbox(EDITBOX_MAX_SIZE)
00621   {
00622     this->avail_sel   = NULL;
00623     this->avail_pos   = -1;
00624     this->active_sel  = NULL;
00625     this->actives     = NULL;
00626     this->orig_list   = orig_list;
00627     this->editable    = editable;
00628     this->execute     = execute;
00629     this->show_params = show_params;
00630     this->preset      = -1;
00631     this->active_over = -1;
00632 
00633     CopyGRFConfigList(&this->actives, *orig_list, false);
00634     GetGRFPresetList(&_grf_preset_list);
00635 
00636     this->CreateNestedTree();
00637     this->vscroll = this->GetScrollbar(WID_NS_SCROLLBAR);
00638     this->vscroll2 = this->GetScrollbar(WID_NS_SCROLL2BAR);
00639 
00640     this->GetWidget<NWidgetStacked>(WID_NS_SHOW_REMOVE)->SetDisplayedPlane(this->editable ? 0 : 1);
00641     this->GetWidget<NWidgetStacked>(WID_NS_SHOW_APPLY)->SetDisplayedPlane(this->editable ? 0 : this->show_params ? 1 : SZSP_HORIZONTAL);
00642     this->FinishInitNested(WN_GAME_OPTIONS_NEWGRF_STATE);
00643 
00644     this->querystrings[WID_NS_FILTER] = &this->filter_editbox;
00645     this->filter_editbox.cancel_button = QueryString::ACTION_CLEAR;
00646     if (editable) {
00647       this->SetFocusedWidget(WID_NS_FILTER);
00648     } else {
00649       this->DisableWidget(WID_NS_FILTER);
00650     }
00651 
00652     this->avails.SetListing(this->last_sorting);
00653     this->avails.SetFiltering(this->last_filtering);
00654     this->avails.SetSortFuncs(this->sorter_funcs);
00655     this->avails.SetFilterFuncs(this->filter_funcs);
00656     this->avails.ForceRebuild();
00657 
00658     this->OnInvalidateData(GOID_NEWGRF_LIST_EDITED);
00659   }
00660 
00661   ~NewGRFWindow()
00662   {
00663     DeleteWindowByClass(WC_GRF_PARAMETERS);
00664     DeleteWindowByClass(WC_TEXTFILE);
00665 
00666     if (this->editable && !this->execute) {
00667       CopyGRFConfigList(this->orig_list, this->actives, true);
00668       ResetGRFConfig(false);
00669       ReloadNewGRFData();
00670     }
00671 
00672     /* Remove the temporary copy of grf-list used in window */
00673     ClearGRFConfigList(&this->actives);
00674     _grf_preset_list.Clear();
00675   }
00676 
00677   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00678   {
00679     switch (widget) {
00680       case WID_NS_FILE_LIST:
00681       {
00682         Dimension d = maxdim(GetSpriteSize(SPR_SQUARE), GetSpriteSize(SPR_WARNING_SIGN));
00683         resize->height = max(d.height + 2U, FONT_HEIGHT_NORMAL + 2U);
00684         size->height = max(size->height, WD_FRAMERECT_TOP + 6 * resize->height + WD_FRAMERECT_BOTTOM);
00685         break;
00686       }
00687 
00688       case WID_NS_AVAIL_LIST:
00689         resize->height = max(12, FONT_HEIGHT_NORMAL + 2);
00690         size->height = max(size->height, WD_FRAMERECT_TOP + 8 * resize->height + WD_FRAMERECT_BOTTOM);
00691         break;
00692 
00693       case WID_NS_NEWGRF_INFO_TITLE: {
00694         Dimension dim = GetStringBoundingBox(STR_NEWGRF_SETTINGS_INFO_TITLE);
00695         size->height = max(size->height, dim.height + WD_FRAMETEXT_TOP + WD_FRAMETEXT_BOTTOM);
00696         size->width  = max(size->width,  dim.width  + WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT);
00697         break;
00698       }
00699 
00700       case WID_NS_NEWGRF_INFO:
00701         size->height = max(size->height, WD_FRAMERECT_TOP + 10 * FONT_HEIGHT_NORMAL + WD_FRAMERECT_BOTTOM + padding.height + 2);
00702         break;
00703 
00704       case WID_NS_PRESET_LIST: {
00705         Dimension d = GetStringBoundingBox(STR_NUM_CUSTOM);
00706         for (uint i = 0; i < _grf_preset_list.Length(); i++) {
00707           if (_grf_preset_list[i] != NULL) {
00708             SetDParamStr(0, _grf_preset_list[i]);
00709             d = maxdim(d, GetStringBoundingBox(STR_JUST_RAW_STRING));
00710           }
00711         }
00712         d.width += padding.width;
00713         *size = maxdim(d, *size);
00714         break;
00715       }
00716 
00717       case WID_NS_CONTENT_DOWNLOAD:
00718       case WID_NS_CONTENT_DOWNLOAD2: {
00719         Dimension d = GetStringBoundingBox(STR_NEWGRF_SETTINGS_FIND_MISSING_CONTENT_BUTTON);
00720         *size = maxdim(d, GetStringBoundingBox(STR_INTRO_ONLINE_CONTENT));
00721         size->width  += padding.width;
00722         size->height += padding.height;
00723         break;
00724       }
00725     }
00726   }
00727 
00728   virtual void OnResize()
00729   {
00730     this->vscroll->SetCapacityFromWidget(this, WID_NS_FILE_LIST);
00731     this->vscroll2->SetCapacityFromWidget(this, WID_NS_AVAIL_LIST);
00732   }
00733 
00734   virtual void SetStringParameters(int widget) const
00735   {
00736     switch (widget) {
00737       case WID_NS_PRESET_LIST:
00738         if (this->preset == -1) {
00739           SetDParam(0, STR_NUM_CUSTOM);
00740         } else {
00741           SetDParam(0, STR_JUST_RAW_STRING);
00742           SetDParamStr(1, _grf_preset_list[this->preset]);
00743         }
00744         break;
00745     }
00746   }
00747 
00753   inline PaletteID GetPalette(const GRFConfig *c) const
00754   {
00755     PaletteID pal;
00756 
00757     /* Pick a colour */
00758     switch (c->status) {
00759       case GCS_NOT_FOUND:
00760       case GCS_DISABLED:
00761         pal = PALETTE_TO_RED;
00762         break;
00763       case GCS_ACTIVATED:
00764         pal = PALETTE_TO_GREEN;
00765         break;
00766       default:
00767         pal = PALETTE_TO_BLUE;
00768         break;
00769     }
00770 
00771     /* Do not show a "not-failure" colour when it actually failed to load */
00772     if (pal != PALETTE_TO_RED) {
00773       if (HasBit(c->flags, GCF_STATIC)) {
00774         pal = PALETTE_TO_GREY;
00775       } else if (HasBit(c->flags, GCF_COMPATIBLE)) {
00776         pal = PALETTE_TO_ORANGE;
00777       }
00778     }
00779 
00780     return pal;
00781   }
00782 
00783   virtual void DrawWidget(const Rect &r, int widget) const
00784   {
00785     switch (widget) {
00786       case WID_NS_FILE_LIST: {
00787         GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_BLACK);
00788 
00789         uint step_height = this->GetWidget<NWidgetBase>(WID_NS_FILE_LIST)->resize_y;
00790         uint y = r.top + WD_FRAMERECT_TOP;
00791         Dimension square = GetSpriteSize(SPR_SQUARE);
00792         Dimension warning = GetSpriteSize(SPR_WARNING_SIGN);
00793         int square_offset_y = (step_height - square.height) / 2;
00794         int warning_offset_y = (step_height - warning.height) / 2;
00795         int offset_y = (step_height - FONT_HEIGHT_NORMAL) / 2;
00796 
00797         bool rtl = _current_text_dir == TD_RTL;
00798         uint text_left    = rtl ? r.left + WD_FRAMERECT_LEFT : r.left + square.width + 15;
00799         uint text_right   = rtl ? r.right - square.width - 15 : r.right - WD_FRAMERECT_RIGHT;
00800         uint square_left  = rtl ? r.right - square.width - 5 : r.left + 5;
00801         uint warning_left = rtl ? r.right - square.width - warning.width - 10 : r.left + square.width + 10;
00802 
00803         int i = 0;
00804         for (const GRFConfig *c = this->actives; c != NULL; c = c->next, i++) {
00805           if (this->vscroll->IsVisible(i)) {
00806             const char *text = c->GetName();
00807             bool h = (this->active_sel == c);
00808             PaletteID pal = this->GetPalette(c);
00809 
00810             if (h) {
00811               GfxFillRect(r.left + 1, y, r.right - 1, y + step_height - 1, PC_DARK_BLUE);
00812             } else if (i == this->active_over) {
00813               /* Get index of current selection. */
00814               int active_sel_pos = 0;
00815               for (GRFConfig *c = this->actives; c != NULL && c != this->active_sel; c = c->next, active_sel_pos++) {}
00816               if (active_sel_pos != this->active_over) {
00817                 uint top = this->active_over < active_sel_pos ? y + 1 : y + step_height - 2;
00818                 GfxFillRect(r.left + WD_FRAMERECT_LEFT, top - 1, r.right - WD_FRAMERECT_RIGHT, top + 1, PC_GREY);
00819               }
00820             }
00821             DrawSprite(SPR_SQUARE, pal, square_left, y + square_offset_y);
00822             if (c->error != NULL) DrawSprite(SPR_WARNING_SIGN, 0, warning_left, y + warning_offset_y);
00823             uint txtoffset = c->error == NULL ? 0 : warning.width;
00824             DrawString(text_left + (rtl ? 0 : txtoffset), text_right - (rtl ? txtoffset : 0), y + offset_y, text, h ? TC_WHITE : TC_ORANGE);
00825             y += step_height;
00826           }
00827         }
00828         if (i == this->active_over && this->vscroll->IsVisible(i)) { // Highlight is after the last GRF entry.
00829           GfxFillRect(r.left + WD_FRAMERECT_LEFT, y, r.right - WD_FRAMERECT_RIGHT, y + 2, PC_GREY);
00830         }
00831         break;
00832       }
00833 
00834       case WID_NS_AVAIL_LIST: {
00835         GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, this->active_over == -2 ? PC_DARK_GREY : PC_BLACK);
00836 
00837         uint step_height = this->GetWidget<NWidgetBase>(WID_NS_AVAIL_LIST)->resize_y;
00838         int offset_y = (step_height - FONT_HEIGHT_NORMAL) / 2;
00839         uint y = r.top + WD_FRAMERECT_TOP;
00840         uint min_index = this->vscroll2->GetPosition();
00841         uint max_index = min(min_index + this->vscroll2->GetCapacity(), this->avails.Length());
00842 
00843         for (uint i = min_index; i < max_index; i++) {
00844           const GRFConfig *c = this->avails[i];
00845           bool h = (c == this->avail_sel);
00846           const char *text = c->GetName();
00847 
00848           if (h) GfxFillRect(r.left + 1, y, r.right - 1, y + step_height - 1, PC_DARK_BLUE);
00849           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y + offset_y, text, h ? TC_WHITE : TC_SILVER);
00850           y += step_height;
00851         }
00852         break;
00853       }
00854 
00855       case WID_NS_NEWGRF_INFO_TITLE:
00856         /* Create the nice grayish rectangle at the details top. */
00857         GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_DARK_BLUE);
00858         DrawString(r.left, r.right, (r.top + r.bottom - FONT_HEIGHT_NORMAL) / 2, STR_NEWGRF_SETTINGS_INFO_TITLE, TC_FROMSTRING, SA_HOR_CENTER);
00859         break;
00860 
00861       case WID_NS_NEWGRF_INFO: {
00862         const GRFConfig *selected = this->active_sel;
00863         if (selected == NULL) selected = this->avail_sel;
00864         if (selected != NULL) {
00865           ShowNewGRFInfo(selected, r.left + WD_FRAMERECT_LEFT, r.top + WD_FRAMERECT_TOP, r.right - WD_FRAMERECT_RIGHT, r.bottom - WD_FRAMERECT_BOTTOM, this->show_params);
00866         }
00867         break;
00868       }
00869     }
00870   }
00871 
00872   virtual void OnClick(Point pt, int widget, int click_count)
00873   {
00874     if (widget >= WID_NS_NEWGRF_TEXTFILE && widget < WID_NS_NEWGRF_TEXTFILE + TFT_END) {
00875       if (this->active_sel == NULL && this->avail_sel == NULL) return;
00876 
00877       ShowNewGRFTextfileWindow((TextfileType)(widget - WID_NS_NEWGRF_TEXTFILE), this->active_sel != NULL ? this->active_sel : this->avail_sel);
00878       return;
00879     }
00880 
00881     switch (widget) {
00882       case WID_NS_PRESET_LIST: {
00883         DropDownList *list = new DropDownList();
00884 
00885         /* Add 'None' option for clearing list */
00886         *list->Append() = new DropDownListStringItem(STR_NONE, -1, false);
00887 
00888         for (uint i = 0; i < _grf_preset_list.Length(); i++) {
00889           if (_grf_preset_list[i] != NULL) {
00890             *list->Append() = new DropDownListPresetItem(i);
00891           }
00892         }
00893 
00894         this->DeleteChildWindows(WC_QUERY_STRING); // Remove the parameter query window
00895         ShowDropDownList(this, list, this->preset, WID_NS_PRESET_LIST);
00896         break;
00897       }
00898 
00899       case WID_NS_OPEN_URL: {
00900         const GRFConfig *c = (this->avail_sel == NULL) ? this->active_sel : this->avail_sel;
00901 
00902         extern void OpenBrowser(const char *url);
00903         OpenBrowser(c->GetURL());
00904         break;
00905       }
00906 
00907       case WID_NS_PRESET_SAVE:
00908         ShowQueryString(STR_EMPTY, STR_NEWGRF_SETTINGS_PRESET_SAVE_QUERY, 32, this, CS_ALPHANUMERAL, QSF_NONE);
00909         break;
00910 
00911       case WID_NS_PRESET_DELETE:
00912         if (this->preset == -1) return;
00913 
00914         DeleteGRFPresetFromConfig(_grf_preset_list[this->preset]);
00915         GetGRFPresetList(&_grf_preset_list);
00916         this->preset = -1;
00917         this->InvalidateData();
00918         this->DeleteChildWindows(WC_QUERY_STRING); // Remove the parameter query window
00919         break;
00920 
00921       case WID_NS_MOVE_UP: { // Move GRF up
00922         if (this->active_sel == NULL || !this->editable) break;
00923 
00924         int pos = 0;
00925         for (GRFConfig **pc = &this->actives; *pc != NULL; pc = &(*pc)->next, pos++) {
00926           GRFConfig *c = *pc;
00927           if (c->next == this->active_sel) {
00928             c->next = this->active_sel->next;
00929             this->active_sel->next = c;
00930             *pc = this->active_sel;
00931             break;
00932           }
00933         }
00934         this->vscroll->ScrollTowards(pos);
00935         this->preset = -1;
00936         this->InvalidateData();
00937         break;
00938       }
00939 
00940       case WID_NS_MOVE_DOWN: { // Move GRF down
00941         if (this->active_sel == NULL || !this->editable) break;
00942 
00943         int pos = 1; // Start at 1 as we swap the selected newgrf with the next one
00944         for (GRFConfig **pc = &this->actives; *pc != NULL; pc = &(*pc)->next, pos++) {
00945           GRFConfig *c = *pc;
00946           if (c == this->active_sel) {
00947             *pc = c->next;
00948             c->next = c->next->next;
00949             (*pc)->next = c;
00950             break;
00951           }
00952         }
00953         this->vscroll->ScrollTowards(pos);
00954         this->preset = -1;
00955         this->InvalidateData();
00956         break;
00957       }
00958 
00959       case WID_NS_FILE_LIST: { // Select an active GRF.
00960         ResetObjectToPlace();
00961 
00962         uint i = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NS_FILE_LIST);
00963 
00964         GRFConfig *c;
00965         for (c = this->actives; c != NULL && i > 0; c = c->next, i--) {}
00966 
00967         if (this->active_sel != c) DeleteWindowByClass(WC_GRF_PARAMETERS);
00968         this->active_sel = c;
00969         this->avail_sel = NULL;
00970         this->avail_pos = -1;
00971 
00972         this->InvalidateData();
00973         if (click_count == 1) {
00974           if (this->editable && this->active_sel != NULL) SetObjectToPlaceWnd(SPR_CURSOR_MOUSE, PAL_NONE, HT_DRAG, this);
00975           break;
00976         }
00977         /* FALL THROUGH, with double click. */
00978       }
00979 
00980       case WID_NS_REMOVE: { // Remove GRF
00981         if (this->active_sel == NULL || !this->editable) break;
00982         DeleteWindowByClass(WC_GRF_PARAMETERS);
00983 
00984         /* Choose the next GRF file to be the selected file. */
00985         GRFConfig *newsel = this->active_sel->next;
00986         for (GRFConfig **pc = &this->actives; *pc != NULL; pc = &(*pc)->next) {
00987           GRFConfig *c = *pc;
00988           /* If the new selection is empty (i.e. we're deleting the last item
00989            * in the list, pick the file just before the selected file */
00990           if (newsel == NULL && c->next == this->active_sel) newsel = c;
00991 
00992           if (c == this->active_sel) {
00993             if (newsel == c) newsel = NULL;
00994 
00995             *pc = c->next;
00996             delete c;
00997             break;
00998           }
00999         }
01000 
01001         this->active_sel = newsel;
01002         this->preset = -1;
01003         this->avail_pos = -1;
01004         this->avail_sel = NULL;
01005         this->avails.ForceRebuild();
01006         this->InvalidateData(GOID_NEWGRF_LIST_EDITED);
01007         break;
01008       }
01009 
01010       case WID_NS_AVAIL_LIST: { // Select a non-active GRF.
01011         ResetObjectToPlace();
01012 
01013         uint i = this->vscroll2->GetScrolledRowFromWidget(pt.y, this, WID_NS_AVAIL_LIST);
01014         this->active_sel = NULL;
01015         DeleteWindowByClass(WC_GRF_PARAMETERS);
01016         if (i < this->avails.Length()) {
01017           this->avail_sel = this->avails[i];
01018           this->avail_pos = i;
01019         }
01020         this->InvalidateData();
01021         if (click_count == 1) {
01022           if (this->editable && this->avail_sel != NULL && !HasBit(this->avail_sel->flags, GCF_INVALID)) SetObjectToPlaceWnd(SPR_CURSOR_MOUSE, PAL_NONE, HT_DRAG, this);
01023           break;
01024         }
01025         /* FALL THROUGH, with double click. */
01026       }
01027 
01028       case WID_NS_ADD:
01029         if (this->avail_sel == NULL || !this->editable || HasBit(this->avail_sel->flags, GCF_INVALID)) break;
01030 
01031         this->AddGRFToActive();
01032         break;
01033 
01034       case WID_NS_APPLY_CHANGES: // Apply changes made to GRF list
01035         if (!this->editable) break;
01036         if (this->execute) {
01037           ShowQuery(
01038             STR_NEWGRF_POPUP_CAUTION_CAPTION,
01039             STR_NEWGRF_CONFIRMATION_TEXT,
01040             this,
01041             NewGRFConfirmationCallback
01042           );
01043         } else {
01044           CopyGRFConfigList(this->orig_list, this->actives, true);
01045           ResetGRFConfig(false);
01046           ReloadNewGRFData();
01047         }
01048         this->DeleteChildWindows(WC_QUERY_STRING); // Remove the parameter query window
01049         break;
01050 
01051       case WID_NS_VIEW_PARAMETERS:
01052       case WID_NS_SET_PARAMETERS: { // Edit parameters
01053         if (this->active_sel == NULL || !this->show_params || this->active_sel->num_valid_params == 0) break;
01054 
01055         OpenGRFParameterWindow(this->active_sel, this->editable);
01056         break;
01057       }
01058 
01059       case WID_NS_TOGGLE_PALETTE:
01060         if (this->active_sel != NULL && this->editable) {
01061           this->active_sel->palette ^= GRFP_USE_MASK;
01062           this->SetDirty();
01063         }
01064         break;
01065 
01066       case WID_NS_CONTENT_DOWNLOAD:
01067       case WID_NS_CONTENT_DOWNLOAD2:
01068         if (!_network_available) {
01069           ShowErrorMessage(STR_NETWORK_ERROR_NOTAVAILABLE, INVALID_STRING_ID, WL_ERROR);
01070         } else {
01071 #if defined(ENABLE_NETWORK)
01072           this->DeleteChildWindows(WC_QUERY_STRING); // Remove the parameter query window
01073 
01074           ShowMissingContentWindow(this->actives);
01075 #endif
01076         }
01077         break;
01078 
01079       case WID_NS_RESCAN_FILES:
01080       case WID_NS_RESCAN_FILES2:
01081         ScanNewGRFFiles(this);
01082         break;
01083     }
01084   }
01085 
01086   virtual void OnNewGRFsScanned()
01087   {
01088     this->avail_sel = NULL;
01089     this->avail_pos = -1;
01090     this->avails.ForceRebuild();
01091     this->DeleteChildWindows(WC_QUERY_STRING); // Remove the parameter query window
01092     this->DeleteChildWindows(WC_TEXTFILE);     // Remove the view textfile window
01093   }
01094 
01095   virtual void OnDropdownSelect(int widget, int index)
01096   {
01097     if (!this->editable) return;
01098 
01099     ClearGRFConfigList(&this->actives);
01100     this->preset = index;
01101 
01102     if (index != -1) {
01103       this->actives = LoadGRFPresetFromConfig(_grf_preset_list[index]);
01104     }
01105     this->avails.ForceRebuild();
01106 
01107     ResetObjectToPlace();
01108     DeleteWindowByClass(WC_GRF_PARAMETERS);
01109     this->active_sel = NULL;
01110     this->InvalidateData(GOID_NEWGRF_PRESET_LOADED);
01111   }
01112 
01113   virtual void OnQueryTextFinished(char *str)
01114   {
01115     if (str == NULL) return;
01116 
01117     SaveGRFPresetToConfig(str, this->actives);
01118     GetGRFPresetList(&_grf_preset_list);
01119 
01120     /* Switch to this preset */
01121     for (uint i = 0; i < _grf_preset_list.Length(); i++) {
01122       if (_grf_preset_list[i] != NULL && strcmp(_grf_preset_list[i], str) == 0) {
01123         this->preset = i;
01124         break;
01125       }
01126     }
01127 
01128     this->InvalidateData();
01129   }
01130 
01136   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
01137   {
01138     if (!gui_scope) return;
01139     switch (data) {
01140       default:
01141         /* Nothing important to do */
01142         break;
01143 
01144       case GOID_NEWGRF_RESCANNED:
01145         /* Search the list for items that are now found and mark them as such. */
01146         for (GRFConfig **l = &this->actives; *l != NULL; l = &(*l)->next) {
01147           GRFConfig *c = *l;
01148           bool compatible = HasBit(c->flags, GCF_COMPATIBLE);
01149           if (c->status != GCS_NOT_FOUND && !compatible) continue;
01150 
01151           const GRFConfig *f = FindGRFConfig(c->ident.grfid, FGCM_EXACT, compatible ? c->original_md5sum : c->ident.md5sum);
01152           if (f == NULL || HasBit(f->flags, GCF_INVALID)) continue;
01153 
01154           *l = new GRFConfig(*f);
01155           (*l)->next = c->next;
01156 
01157           if (active_sel == c) active_sel = *l;
01158 
01159           delete c;
01160         }
01161 
01162         this->avails.ForceRebuild();
01163         /* FALL THROUGH */
01164       case GOID_NEWGRF_LIST_EDITED:
01165         this->preset = -1;
01166         /* FALL THROUGH */
01167       case GOID_NEWGRF_PRESET_LOADED: {
01168         /* Update scrollbars */
01169         int i = 0;
01170         for (const GRFConfig *c = this->actives; c != NULL; c = c->next, i++) {}
01171 
01172         this->vscroll->SetCount(i + 1); // Reserve empty space for drag and drop handling.
01173 
01174         if (this->avail_pos >= 0) this->vscroll2->ScrollTowards(this->avail_pos);
01175         break;
01176       }
01177     }
01178 
01179     this->BuildAvailables();
01180 
01181     this->SetWidgetsDisabledState(!this->editable,
01182       WID_NS_PRESET_LIST,
01183       WID_NS_APPLY_CHANGES,
01184       WID_NS_TOGGLE_PALETTE,
01185       WIDGET_LIST_END
01186     );
01187     this->SetWidgetDisabledState(WID_NS_ADD, !this->editable || this->avail_sel == NULL || HasBit(this->avail_sel->flags, GCF_INVALID));
01188 
01189     bool disable_all = this->active_sel == NULL || !this->editable;
01190     this->SetWidgetsDisabledState(disable_all,
01191       WID_NS_REMOVE,
01192       WID_NS_MOVE_UP,
01193       WID_NS_MOVE_DOWN,
01194       WIDGET_LIST_END
01195     );
01196 
01197     const GRFConfig *c = (this->avail_sel == NULL) ? this->active_sel : this->avail_sel;
01198     for (TextfileType tft = TFT_BEGIN; tft < TFT_END; tft++) {
01199       this->SetWidgetDisabledState(WID_NS_NEWGRF_TEXTFILE + tft, c == NULL || c->GetTextfile(tft) == NULL);
01200     }
01201     this->SetWidgetDisabledState(WID_NS_OPEN_URL, c == NULL || StrEmpty(c->GetURL()));
01202 
01203     this->SetWidgetDisabledState(WID_NS_SET_PARAMETERS, !this->show_params || this->active_sel == NULL || this->active_sel->num_valid_params == 0);
01204     this->SetWidgetDisabledState(WID_NS_VIEW_PARAMETERS, !this->show_params || this->active_sel == NULL || this->active_sel->num_valid_params == 0);
01205     this->SetWidgetDisabledState(WID_NS_TOGGLE_PALETTE, disable_all ||
01206         (!(_settings_client.gui.newgrf_developer_tools || _settings_client.gui.scenario_developer) && ((c->palette & GRFP_GRF_MASK) != GRFP_GRF_UNSET)));
01207 
01208     if (!disable_all) {
01209       /* All widgets are now enabled, so disable widgets we can't use */
01210       if (this->active_sel == this->actives)    this->DisableWidget(WID_NS_MOVE_UP);
01211       if (this->active_sel->next == NULL)       this->DisableWidget(WID_NS_MOVE_DOWN);
01212       if (this->active_sel->IsOpenTTDBaseGRF()) this->DisableWidget(WID_NS_REMOVE);
01213     }
01214 
01215     this->SetWidgetDisabledState(WID_NS_PRESET_DELETE, this->preset == -1);
01216 
01217     bool has_missing = false;
01218     bool has_compatible = false;
01219     for (const GRFConfig *c = this->actives; !has_missing && c != NULL; c = c->next) {
01220       has_missing    |= c->status == GCS_NOT_FOUND;
01221       has_compatible |= HasBit(c->flags, GCF_COMPATIBLE);
01222     }
01223     uint32 widget_data;
01224     StringID tool_tip;
01225     if (has_missing || has_compatible) {
01226       widget_data = STR_NEWGRF_SETTINGS_FIND_MISSING_CONTENT_BUTTON;
01227       tool_tip    = STR_NEWGRF_SETTINGS_FIND_MISSING_CONTENT_TOOLTIP;
01228     } else {
01229       widget_data = STR_INTRO_ONLINE_CONTENT;
01230       tool_tip    = STR_INTRO_TOOLTIP_ONLINE_CONTENT;
01231     }
01232     this->GetWidget<NWidgetCore>(WID_NS_CONTENT_DOWNLOAD)->widget_data  = widget_data;
01233     this->GetWidget<NWidgetCore>(WID_NS_CONTENT_DOWNLOAD)->tool_tip     = tool_tip;
01234     this->GetWidget<NWidgetCore>(WID_NS_CONTENT_DOWNLOAD2)->widget_data = widget_data;
01235     this->GetWidget<NWidgetCore>(WID_NS_CONTENT_DOWNLOAD2)->tool_tip    = tool_tip;
01236 
01237     this->SetWidgetDisabledState(WID_NS_PRESET_SAVE, has_missing);
01238   }
01239 
01240   virtual EventState OnKeyPress(WChar key, uint16 keycode)
01241   {
01242     if (!this->editable) return ES_NOT_HANDLED;
01243 
01244     switch (keycode) {
01245       case WKC_UP:
01246         /* scroll up by one */
01247         if (this->avail_pos > 0) this->avail_pos--;
01248         break;
01249 
01250       case WKC_DOWN:
01251         /* scroll down by one */
01252         if (this->avail_pos < (int)this->avails.Length() - 1) this->avail_pos++;
01253         break;
01254 
01255       case WKC_PAGEUP:
01256         /* scroll up a page */
01257         this->avail_pos = (this->avail_pos < this->vscroll2->GetCapacity()) ? 0 : this->avail_pos - this->vscroll2->GetCapacity();
01258         break;
01259 
01260       case WKC_PAGEDOWN:
01261         /* scroll down a page */
01262         this->avail_pos = min(this->avail_pos + this->vscroll2->GetCapacity(), (int)this->avails.Length() - 1);
01263         break;
01264 
01265       case WKC_HOME:
01266         /* jump to beginning */
01267         this->avail_pos = 0;
01268         break;
01269 
01270       case WKC_END:
01271         /* jump to end */
01272         this->avail_pos = this->avails.Length() - 1;
01273         break;
01274 
01275       default:
01276         return ES_NOT_HANDLED;
01277     }
01278 
01279     if (this->avails.Length() == 0) this->avail_pos = -1;
01280     if (this->avail_pos >= 0) {
01281       this->avail_sel = this->avails[this->avail_pos];
01282       this->vscroll2->ScrollTowards(this->avail_pos);
01283       this->InvalidateData(0);
01284     }
01285 
01286     return ES_HANDLED;
01287   }
01288 
01289   virtual void OnEditboxChanged(int wid)
01290   {
01291     if (!this->editable) return;
01292 
01293     string_filter.SetFilterTerm(this->filter_editbox.text.buf);
01294     this->avails.SetFilterState(!string_filter.IsEmpty());
01295     this->avails.ForceRebuild();
01296     this->InvalidateData(0);
01297   }
01298 
01299   virtual void OnDragDrop(Point pt, int widget)
01300   {
01301     if (!this->editable) return;
01302 
01303     if (widget == WID_NS_FILE_LIST) {
01304       if (this->active_sel != NULL) {
01305         /* Get pointer to the selected file in the active list. */
01306         int from_pos = 0;
01307         GRFConfig **from_prev;
01308         for (from_prev = &this->actives; *from_prev != this->active_sel; from_prev = &(*from_prev)->next, from_pos++) {}
01309 
01310         /* Gets the drag-and-drop destination offset. Ignore the last dummy line. */
01311         int to_pos = min(this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NS_FILE_LIST), this->vscroll->GetCount() - 2);
01312         if (to_pos != from_pos) { // Don't move NewGRF file over itself.
01313           /* Get pointer to destination position. */
01314           GRFConfig **to_prev = &this->actives;
01315           for (int i = from_pos < to_pos ? -1 : 0; *to_prev != NULL && i < to_pos; to_prev = &(*to_prev)->next, i++) {}
01316 
01317           /* Detach NewGRF file from its original position. */
01318           *from_prev = this->active_sel->next;
01319 
01320           /* Attach NewGRF file to its new position. */
01321           this->active_sel->next = *to_prev;
01322           *to_prev = this->active_sel;
01323 
01324           this->vscroll->ScrollTowards(to_pos);
01325           this->preset = -1;
01326           this->InvalidateData();
01327         }
01328       } else if (this->avail_sel != NULL) {
01329         int to_pos = min(this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NS_FILE_LIST), this->vscroll->GetCount() - 1);
01330         this->AddGRFToActive(to_pos);
01331       }
01332     } else if (widget == WID_NS_AVAIL_LIST && this->active_sel != NULL) {
01333       /* Remove active NewGRF file by dragging it over available list. */
01334       Point dummy = {-1, -1};
01335       this->OnClick(dummy, WID_NS_REMOVE, 1);
01336     }
01337 
01338     ResetObjectToPlace();
01339 
01340     if (this->active_over != -1) {
01341       /* End of drag-and-drop, hide dragged destination highlight. */
01342       this->SetWidgetDirty(this->active_over == -2 ? WID_NS_AVAIL_LIST : WID_NS_FILE_LIST);
01343       this->active_over = -1;
01344     }
01345   }
01346 
01347   virtual void OnMouseDrag(Point pt, int widget)
01348   {
01349     if (!this->editable) return;
01350 
01351     if (widget == WID_NS_FILE_LIST && (this->active_sel != NULL || this->avail_sel != NULL)) {
01352       /* An NewGRF file is dragged over the active list. */
01353       int to_pos = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NS_FILE_LIST);
01354       /* Skip the last dummy line if the source is from the active list. */
01355       to_pos = min(to_pos, this->vscroll->GetCount() - (this->active_sel != NULL ? 2 : 1));
01356 
01357       if (to_pos != this->active_over) {
01358         this->active_over = to_pos;
01359         this->SetWidgetDirty(WID_NS_FILE_LIST);
01360       }
01361     } else if (widget == WID_NS_AVAIL_LIST && this->active_sel != NULL) {
01362       this->active_over = -2;
01363       this->SetWidgetDirty(WID_NS_AVAIL_LIST);
01364     } else if (this->active_over != -1) {
01365       this->SetWidgetDirty(this->active_over == -2 ? WID_NS_AVAIL_LIST : WID_NS_FILE_LIST);
01366       this->active_over = -1;
01367     }
01368   }
01369 
01370 private:
01372   static int CDECL NameSorter(const GRFConfig * const *a, const GRFConfig * const *b)
01373   {
01374     int i = strnatcmp((*a)->GetName(), (*b)->GetName(), true); // Sort by name (natural sorting).
01375     if (i != 0) return i;
01376 
01377     i = (*a)->version - (*b)->version;
01378     if (i != 0) return i;
01379 
01380     return memcmp((*a)->ident.md5sum, (*b)->ident.md5sum, lengthof((*b)->ident.md5sum));
01381   }
01382 
01384   static bool CDECL TagNameFilter(const GRFConfig * const *a, StringFilter &filter)
01385   {
01386     filter.ResetState();
01387     filter.AddLine((*a)->GetName());
01388     filter.AddLine((*a)->filename);
01389     filter.AddLine((*a)->GetDescription());
01390     return filter.GetState();;
01391   }
01392 
01393   void BuildAvailables()
01394   {
01395     if (!this->avails.NeedRebuild()) return;
01396 
01397     this->avails.Clear();
01398 
01399     for (const GRFConfig *c = _all_grfs; c != NULL; c = c->next) {
01400       bool found = false;
01401       for (const GRFConfig *grf = this->actives; grf != NULL && !found; grf = grf->next) found = grf->ident.HasGrfIdentifier(c->ident.grfid, c->ident.md5sum);
01402       if (found) continue;
01403 
01404       if (_settings_client.gui.newgrf_show_old_versions) {
01405         *this->avails.Append() = c;
01406       } else {
01407         const GRFConfig *best = FindGRFConfig(c->ident.grfid, HasBit(c->flags, GCF_INVALID) ? FGCM_NEWEST : FGCM_NEWEST_VALID);
01408         /*
01409          * If the best version is 0, then all NewGRF with this GRF ID
01410          * have version 0, so for backward compatibility reasons we
01411          * want to show them all.
01412          * If we are the best version, then we definitely want to
01413          * show that NewGRF!.
01414          */
01415         if (best->version == 0 || best->ident.HasGrfIdentifier(c->ident.grfid, c->ident.md5sum)) {
01416           *this->avails.Append() = c;
01417         }
01418       }
01419     }
01420 
01421     this->avails.Filter(this->string_filter);
01422     this->avails.Compact();
01423     this->avails.RebuildDone();
01424     this->avails.Sort();
01425 
01426     if (this->avail_sel != NULL) {
01427       this->avail_pos = this->avails.FindIndex(this->avail_sel);
01428       if (this->avail_pos < 0) this->avail_sel = NULL;
01429     }
01430 
01431     this->vscroll2->SetCount(this->avails.Length()); // Update the scrollbar
01432   }
01433 
01439   bool AddGRFToActive(int ins_pos = -1)
01440   {
01441     if (this->avail_sel == NULL || !this->editable || HasBit(this->avail_sel->flags, GCF_INVALID)) return false;
01442 
01443     int count = 0;
01444     GRFConfig **entry = NULL;
01445     GRFConfig **list;
01446     /* Find last entry in the list, checking for duplicate grfid on the way */
01447     for (list = &this->actives; *list != NULL; list = &(*list)->next, ins_pos--) {
01448       if (ins_pos == 0) entry = list; // Insert position? Save.
01449       if ((*list)->ident.grfid == this->avail_sel->ident.grfid) {
01450         ShowErrorMessage(STR_NEWGRF_DUPLICATE_GRFID, INVALID_STRING_ID, WL_INFO);
01451         return false;
01452       }
01453       count++;
01454     }
01455     if (entry == NULL) entry = list;
01456     if (count >= MAX_NEWGRFS) {
01457       ShowErrorMessage(STR_NEWGRF_TOO_MANY_NEWGRFS, INVALID_STRING_ID, WL_INFO);
01458       return false;
01459     }
01460 
01461     GRFConfig *c = new GRFConfig(*this->avail_sel); // Copy GRF details from scanned list.
01462     c->SetParameterDefaults();
01463 
01464     /* Insert GRF config to configuration list. */
01465     c->next = *entry;
01466     *entry = c;
01467 
01468     /* Select next (or previous, if last one) item in the list. */
01469     int new_pos = this->avail_pos + 1;
01470     if (new_pos >= (int)this->avails.Length()) new_pos = this->avail_pos - 1;
01471     this->avail_pos = new_pos;
01472     if (new_pos >= 0) this->avail_sel = this->avails[new_pos];
01473 
01474     this->avails.ForceRebuild();
01475     this->InvalidateData(GOID_NEWGRF_LIST_EDITED);
01476     return true;
01477   }
01478 };
01479 
01480 #if defined(ENABLE_NETWORK)
01481 
01485 void ShowMissingContentWindow(const GRFConfig *list)
01486 {
01487   /* Only show the things in the current list, or everything when nothing's selected */
01488   ContentVector cv;
01489   for (const GRFConfig *c = list; c != NULL; c = c->next) {
01490     if (c->status != GCS_NOT_FOUND && !HasBit(c->flags, GCF_COMPATIBLE)) continue;
01491 
01492     ContentInfo *ci = new ContentInfo();
01493     ci->type = CONTENT_TYPE_NEWGRF;
01494     ci->state = ContentInfo::DOES_NOT_EXIST;
01495     ttd_strlcpy(ci->name, c->GetName(), lengthof(ci->name));
01496     ci->unique_id = BSWAP32(c->ident.grfid);
01497     memcpy(ci->md5sum, HasBit(c->flags, GCF_COMPATIBLE) ? c->original_md5sum : c->ident.md5sum, sizeof(ci->md5sum));
01498     *cv.Append() = ci;
01499   }
01500   ShowNetworkContentListWindow(cv.Length() == 0 ? NULL : &cv, CONTENT_TYPE_NEWGRF);
01501 }
01502 #endif
01503 
01504 Listing NewGRFWindow::last_sorting     = {false, 0};
01505 Filtering NewGRFWindow::last_filtering = {false, 0};
01506 
01507 NewGRFWindow::GUIGRFConfigList::SortFunction * const NewGRFWindow::sorter_funcs[] = {
01508   &NameSorter,
01509 };
01510 
01511 NewGRFWindow::GUIGRFConfigList::FilterFunction * const NewGRFWindow::filter_funcs[] = {
01512   &TagNameFilter,
01513 };
01514 
01521 class NWidgetNewGRFDisplay : public NWidgetContainer {
01522 public:
01523   static const uint INTER_LIST_SPACING;      
01524   static const uint INTER_COLUMN_SPACING;    
01525   static const uint MAX_EXTRA_INFO_WIDTH;    
01526   static const uint MIN_EXTRA_FOR_3_COLUMNS; 
01527 
01528   NWidgetBase *avs; 
01529   NWidgetBase *acs; 
01530   NWidgetBase *inf; 
01531   bool editable;    
01532 
01533   NWidgetNewGRFDisplay(NWidgetBase *avs, NWidgetBase *acs, NWidgetBase *inf) : NWidgetContainer(NWID_HORIZONTAL)
01534   {
01535     this->avs = avs;
01536     this->acs = acs;
01537     this->inf = inf;
01538 
01539     this->Add(this->avs);
01540     this->Add(this->acs);
01541     this->Add(this->inf);
01542 
01543     this->editable = true; // Temporary setting, 'real' value is set in SetupSmallestSize().
01544   }
01545 
01546   virtual void SetupSmallestSize(Window *w, bool init_array)
01547   {
01548     /* Copy state flag from the window. */
01549     assert(dynamic_cast<NewGRFWindow *>(w) != NULL);
01550     NewGRFWindow *ngw = (NewGRFWindow *)w;
01551     this->editable = ngw->editable;
01552 
01553     this->avs->SetupSmallestSize(w, init_array);
01554     this->acs->SetupSmallestSize(w, init_array);
01555     this->inf->SetupSmallestSize(w, init_array);
01556 
01557     uint min_avs_width = this->avs->smallest_x + this->avs->padding_left + this->avs->padding_right;
01558     uint min_acs_width = this->acs->smallest_x + this->acs->padding_left + this->acs->padding_right;
01559     uint min_inf_width = this->inf->smallest_x + this->inf->padding_left + this->inf->padding_right;
01560 
01561     uint min_avs_height = this->avs->smallest_y + this->avs->padding_top + this->avs->padding_bottom;
01562     uint min_acs_height = this->acs->smallest_y + this->acs->padding_top + this->acs->padding_bottom;
01563     uint min_inf_height = this->inf->smallest_y + this->inf->padding_top + this->inf->padding_bottom;
01564 
01565     /* Smallest window is in two column mode. */
01566     this->smallest_x = max(min_avs_width, min_acs_width) + INTER_COLUMN_SPACING + min_inf_width;
01567     this->smallest_y = max(min_inf_height, min_acs_height + INTER_LIST_SPACING + min_avs_height);
01568 
01569     /* Filling. */
01570     this->fill_x = LeastCommonMultiple(this->avs->fill_x, this->acs->fill_x);
01571     if (this->inf->fill_x > 0 && (this->fill_x == 0 || this->fill_x > this->inf->fill_x)) this->fill_x = this->inf->fill_x;
01572 
01573     this->fill_y = this->avs->fill_y;
01574     if (this->acs->fill_y > 0 && (this->fill_y == 0 || this->fill_y > this->acs->fill_y)) this->fill_y = this->acs->fill_y;
01575     this->fill_y = LeastCommonMultiple(this->fill_y, this->inf->fill_y);
01576 
01577     /* Resizing. */
01578     this->resize_x = LeastCommonMultiple(this->avs->resize_x, this->acs->resize_x);
01579     if (this->inf->resize_x > 0 && (this->resize_x == 0 || this->resize_x > this->inf->resize_x)) this->resize_x = this->inf->resize_x;
01580 
01581     this->resize_y = this->avs->resize_y;
01582     if (this->acs->resize_y > 0 && (this->resize_y == 0 || this->resize_y > this->acs->resize_y)) this->resize_y = this->acs->resize_y;
01583     this->resize_y = LeastCommonMultiple(this->resize_y, this->inf->resize_y);
01584 
01585     /* Make sure the height suits the 3 column (resp. not-editable) format; the 2 column format can easily fill space between the lists */
01586     this->smallest_y = ComputeMaxSize(min_acs_height, this->smallest_y + this->resize_y - 1, this->resize_y);
01587   }
01588 
01589   virtual void AssignSizePosition(SizingType sizing, uint x, uint y, uint given_width, uint given_height, bool rtl)
01590   {
01591     this->StoreSizePosition(sizing, x, y, given_width, given_height);
01592 
01593     uint min_avs_width = this->avs->smallest_x + this->avs->padding_left + this->avs->padding_right;
01594     uint min_acs_width = this->acs->smallest_x + this->acs->padding_left + this->acs->padding_right;
01595     uint min_inf_width = this->inf->smallest_x + this->inf->padding_left + this->inf->padding_right;
01596 
01597     uint min_list_width = max(min_avs_width, min_acs_width); // Smallest width of the lists such that they have equal width (incl padding).
01598     uint avs_extra_width = min_list_width - min_avs_width;   // Additional width needed for avs to reach min_list_width.
01599     uint acs_extra_width = min_list_width - min_acs_width;   // Additional width needed for acs to reach min_list_width.
01600 
01601     /* Use 2 or 3 columns? */
01602     uint min_three_columns = min_avs_width + min_acs_width + min_inf_width + 2 * INTER_COLUMN_SPACING;
01603     uint min_two_columns   = min_list_width + min_inf_width + INTER_COLUMN_SPACING;
01604     bool use_three_columns = this->editable && (min_three_columns + MIN_EXTRA_FOR_3_COLUMNS <= given_width);
01605 
01606     /* Info panel is a separate column in both modes. Compute its width first. */
01607     uint extra_width, inf_width;
01608     if (use_three_columns) {
01609       extra_width = given_width - min_three_columns;
01610       inf_width = min(MAX_EXTRA_INFO_WIDTH, extra_width / 2);
01611     } else {
01612       extra_width = given_width - min_two_columns;
01613       inf_width = min(MAX_EXTRA_INFO_WIDTH, extra_width / 2);
01614     }
01615     inf_width = ComputeMaxSize(this->inf->smallest_x, this->inf->smallest_x + inf_width, this->inf->GetHorizontalStepSize(sizing));
01616     extra_width -= inf_width - this->inf->smallest_x;
01617 
01618     uint inf_height = ComputeMaxSize(this->inf->smallest_y, given_height, this->inf->GetVerticalStepSize(sizing));
01619 
01620     if (use_three_columns) {
01621       /* Three column display, first make both lists equally wide, then divide whatever is left between both lists.
01622        * Only keep track of what avs gets, all other space goes to acs. */
01623       uint avs_width = min(avs_extra_width, extra_width);
01624       extra_width -= avs_width;
01625       extra_width -= min(acs_extra_width, extra_width);
01626       avs_width += extra_width / 2;
01627 
01628       avs_width = ComputeMaxSize(this->avs->smallest_x, this->avs->smallest_x + avs_width, this->avs->GetHorizontalStepSize(sizing));
01629 
01630       uint acs_width = given_width - // Remaining space, including horizontal padding.
01631           inf_width - this->inf->padding_left - this->inf->padding_right -
01632           avs_width - this->avs->padding_left - this->avs->padding_right - 2 * INTER_COLUMN_SPACING;
01633       acs_width = ComputeMaxSize(min_acs_width, acs_width, this->acs->GetHorizontalStepSize(sizing)) -
01634           this->acs->padding_left - this->acs->padding_right;
01635 
01636       /* Never use fill_y on these; the minimal size is chosen, so that the 3 column view looks nice */
01637       uint avs_height = ComputeMaxSize(this->avs->smallest_y, given_height, this->avs->resize_y);
01638       uint acs_height = ComputeMaxSize(this->acs->smallest_y, given_height, this->acs->resize_y);
01639 
01640       /* Assign size and position to the children. */
01641       if (rtl) {
01642         x += this->inf->padding_left;
01643         this->inf->AssignSizePosition(sizing, x, y + this->inf->padding_top, inf_width, inf_height, rtl);
01644         x += inf_width + this->inf->padding_right + INTER_COLUMN_SPACING;
01645       } else {
01646         x += this->avs->padding_left;
01647         this->avs->AssignSizePosition(sizing, x, y + this->avs->padding_top, avs_width, avs_height, rtl);
01648         x += avs_width + this->avs->padding_right + INTER_COLUMN_SPACING;
01649       }
01650 
01651       x += this->acs->padding_left;
01652       this->acs->AssignSizePosition(sizing, x, y + this->acs->padding_top, acs_width, acs_height, rtl);
01653       x += acs_width + this->acs->padding_right + INTER_COLUMN_SPACING;
01654 
01655       if (rtl) {
01656         x += this->avs->padding_left;
01657         this->avs->AssignSizePosition(sizing, x, y + this->avs->padding_top, avs_width, avs_height, rtl);
01658       } else {
01659         x += this->inf->padding_left;
01660         this->inf->AssignSizePosition(sizing, x, y + this->inf->padding_top, inf_width, inf_height, rtl);
01661       }
01662     } else {
01663       /* Two columns, all space in extra_width goes to both lists. Since the lists are underneath each other,
01664        * the column is min_list_width wide at least. */
01665       uint avs_width = ComputeMaxSize(this->avs->smallest_x, this->avs->smallest_x + avs_extra_width + extra_width,
01666           this->avs->GetHorizontalStepSize(sizing));
01667       uint acs_width = ComputeMaxSize(this->acs->smallest_x, this->acs->smallest_x + acs_extra_width + extra_width,
01668           this->acs->GetHorizontalStepSize(sizing));
01669 
01670       uint min_avs_height = (!this->editable) ? 0 : this->avs->smallest_y + this->avs->padding_top + this->avs->padding_bottom + INTER_LIST_SPACING;
01671       uint min_acs_height = this->acs->smallest_y + this->acs->padding_top + this->acs->padding_bottom;
01672       uint extra_height = given_height - min_acs_height - min_avs_height;
01673 
01674       /* Never use fill_y on these; instead use the INTER_LIST_SPACING as filler */
01675       uint avs_height = ComputeMaxSize(this->avs->smallest_y, this->avs->smallest_y + extra_height / 2, this->avs->resize_y);
01676       if (this->editable) extra_height -= avs_height - this->avs->smallest_y;
01677       uint acs_height = ComputeMaxSize(this->acs->smallest_y, this->acs->smallest_y + extra_height, this->acs->resize_y);
01678 
01679       /* Assign size and position to the children. */
01680       if (rtl) {
01681         x += this->inf->padding_left;
01682         this->inf->AssignSizePosition(sizing, x, y + this->inf->padding_top, inf_width, inf_height, rtl);
01683         x += inf_width + this->inf->padding_right + INTER_COLUMN_SPACING;
01684 
01685         this->acs->AssignSizePosition(sizing, x + this->acs->padding_left, y + this->acs->padding_top, acs_width, acs_height, rtl);
01686         if (this->editable) {
01687           this->avs->AssignSizePosition(sizing, x + this->avs->padding_left, y + given_height - avs_height - this->avs->padding_bottom, avs_width, avs_height, rtl);
01688         } else {
01689           this->avs->AssignSizePosition(sizing, 0, 0, this->avs->smallest_x, this->avs->smallest_y, rtl);
01690         }
01691       } else {
01692         this->acs->AssignSizePosition(sizing, x + this->acs->padding_left, y + this->acs->padding_top, acs_width, acs_height, rtl);
01693         if (this->editable) {
01694           this->avs->AssignSizePosition(sizing, x + this->avs->padding_left, y + given_height - avs_height - this->avs->padding_bottom, avs_width, avs_height, rtl);
01695         } else {
01696           this->avs->AssignSizePosition(sizing, 0, 0, this->avs->smallest_x, this->avs->smallest_y, rtl);
01697         }
01698         uint dx = this->acs->current_x + this->acs->padding_left + this->acs->padding_right;
01699         if (this->editable) {
01700           dx = max(dx, this->avs->current_x + this->avs->padding_left + this->avs->padding_right);
01701         }
01702         x += dx + INTER_COLUMN_SPACING + this->inf->padding_left;
01703         this->inf->AssignSizePosition(sizing, x, y + this->inf->padding_top, inf_width, inf_height, rtl);
01704       }
01705     }
01706   }
01707 
01708   virtual NWidgetCore *GetWidgetFromPos(int x, int y)
01709   {
01710     if (!IsInsideBS(x, this->pos_x, this->current_x) || !IsInsideBS(y, this->pos_y, this->current_y)) return NULL;
01711 
01712     NWidgetCore *nw = (this->editable) ? this->avs->GetWidgetFromPos(x, y) : NULL;
01713     if (nw == NULL) nw = this->acs->GetWidgetFromPos(x, y);
01714     if (nw == NULL) nw = this->inf->GetWidgetFromPos(x, y);
01715     return nw;
01716   }
01717 
01718   virtual void Draw(const Window *w)
01719   {
01720     if (this->editable) this->avs->Draw(w);
01721     this->acs->Draw(w);
01722     this->inf->Draw(w);
01723   }
01724 };
01725 
01726 const uint NWidgetNewGRFDisplay::INTER_LIST_SPACING      = WD_RESIZEBOX_WIDTH + 1;
01727 const uint NWidgetNewGRFDisplay::INTER_COLUMN_SPACING    = WD_RESIZEBOX_WIDTH;
01728 const uint NWidgetNewGRFDisplay::MAX_EXTRA_INFO_WIDTH    = 150;
01729 const uint NWidgetNewGRFDisplay::MIN_EXTRA_FOR_3_COLUMNS = 50;
01730 
01731 static const NWidgetPart _nested_newgrf_actives_widgets[] = {
01732   /* Left side, presets. */
01733   NWidget(NWID_HORIZONTAL),
01734     NWidget(WWT_TEXT, COLOUR_MAUVE), SetDataTip(STR_NEWGRF_SETTINGS_SELECT_PRESET, STR_NULL),
01735         SetPadding(0, WD_FRAMETEXT_RIGHT, 0, 0),
01736     NWidget(WWT_DROPDOWN, COLOUR_YELLOW, WID_NS_PRESET_LIST), SetFill(1, 0), SetResize(1, 0),
01737         SetDataTip(STR_JUST_STRING, STR_NEWGRF_SETTINGS_PRESET_LIST_TOOLTIP),
01738   EndContainer(),
01739   NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
01740     NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_PRESET_SAVE), SetFill(1, 0), SetResize(1, 0),
01741         SetDataTip(STR_NEWGRF_SETTINGS_PRESET_SAVE, STR_NEWGRF_SETTINGS_PRESET_SAVE_TOOLTIP),
01742     NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_PRESET_DELETE), SetFill(1, 0), SetResize(1, 0),
01743         SetDataTip(STR_NEWGRF_SETTINGS_PRESET_DELETE, STR_NEWGRF_SETTINGS_PRESET_DELETE_TOOLTIP),
01744   EndContainer(),
01745 
01746   NWidget(NWID_SPACER), SetMinimalSize(0, WD_RESIZEBOX_WIDTH), SetResize(1, 0), SetFill(1, 0),
01747   NWidget(WWT_PANEL, COLOUR_MAUVE),
01748     NWidget(WWT_LABEL, COLOUR_MAUVE), SetDataTip(STR_NEWGRF_SETTINGS_ACTIVE_LIST, STR_NULL),
01749         SetFill(1, 0), SetResize(1, 0), SetPadding(3, WD_FRAMETEXT_RIGHT, 0, WD_FRAMETEXT_LEFT),
01750     /* Left side, active grfs. */
01751     NWidget(NWID_HORIZONTAL), SetPadding(0, 2, 0, 2),
01752       NWidget(WWT_PANEL, COLOUR_MAUVE),
01753         NWidget(WWT_INSET, COLOUR_MAUVE, WID_NS_FILE_LIST), SetMinimalSize(100, 1), SetPadding(2, 2, 2, 2),
01754             SetFill(1, 1), SetResize(1, 1), SetScrollbar(WID_NS_SCROLLBAR), SetDataTip(STR_NULL, STR_NEWGRF_SETTINGS_FILE_TOOLTIP),
01755         EndContainer(),
01756       EndContainer(),
01757       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, WID_NS_SCROLLBAR),
01758     EndContainer(),
01759     /* Buttons. */
01760     NWidget(NWID_SELECTION, INVALID_COLOUR, WID_NS_SHOW_REMOVE),
01761       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPadding(2, 2, 2, 2), SetPIP(0, WD_RESIZEBOX_WIDTH, 0),
01762         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_REMOVE), SetFill(1, 0), SetResize(1, 0),
01763             SetDataTip(STR_NEWGRF_SETTINGS_REMOVE, STR_NEWGRF_SETTINGS_REMOVE_TOOLTIP),
01764         NWidget(NWID_VERTICAL),
01765           NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_MOVE_UP), SetFill(1, 0), SetResize(1, 0),
01766               SetDataTip(STR_NEWGRF_SETTINGS_MOVEUP, STR_NEWGRF_SETTINGS_MOVEUP_TOOLTIP),
01767           NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_MOVE_DOWN), SetFill(1, 0), SetResize(1, 0),
01768               SetDataTip(STR_NEWGRF_SETTINGS_MOVEDOWN, STR_NEWGRF_SETTINGS_MOVEDOWN_TOOLTIP),
01769         EndContainer(),
01770       EndContainer(),
01771 
01772       NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPadding(2, 2, 2, 2),
01773         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_RESCAN_FILES2), SetFill(1, 0), SetResize(1, 0),
01774             SetDataTip(STR_NEWGRF_SETTINGS_RESCAN_FILES, STR_NEWGRF_SETTINGS_RESCAN_FILES_TOOLTIP),
01775         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_CONTENT_DOWNLOAD2), SetFill(1, 0), SetResize(1, 0),
01776             SetDataTip(STR_INTRO_ONLINE_CONTENT, STR_INTRO_TOOLTIP_ONLINE_CONTENT),
01777       EndContainer(),
01778     EndContainer(),
01779   EndContainer(),
01780 };
01781 
01782 static const NWidgetPart _nested_newgrf_availables_widgets[] = {
01783   NWidget(WWT_PANEL, COLOUR_MAUVE),
01784     NWidget(WWT_LABEL, COLOUR_MAUVE), SetDataTip(STR_NEWGRF_SETTINGS_INACTIVE_LIST, STR_NULL),
01785         SetFill(1, 0), SetResize(1, 0), SetPadding(3, WD_FRAMETEXT_RIGHT, 0, WD_FRAMETEXT_LEFT),
01786     /* Left side, available grfs, filter edit box. */
01787     NWidget(NWID_HORIZONTAL), SetPadding(WD_TEXTPANEL_TOP, 0, WD_TEXTPANEL_BOTTOM, 0),
01788         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
01789       NWidget(WWT_TEXT, COLOUR_MAUVE), SetFill(0, 1), SetDataTip(STR_NEWGRF_FILTER_TITLE, STR_NULL),
01790       NWidget(WWT_EDITBOX, COLOUR_MAUVE, WID_NS_FILTER), SetFill(1, 0), SetMinimalSize(50, 12), SetResize(1, 0),
01791           SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
01792     EndContainer(),
01793     /* Left side, available grfs. */
01794     NWidget(NWID_HORIZONTAL), SetPadding(0, 2, 0, 2),
01795       NWidget(WWT_PANEL, COLOUR_MAUVE),
01796         NWidget(WWT_INSET, COLOUR_MAUVE, WID_NS_AVAIL_LIST), SetMinimalSize(100, 1), SetPadding(2, 2, 2, 2),
01797             SetFill(1, 1), SetResize(1, 1), SetScrollbar(WID_NS_SCROLL2BAR),
01798         EndContainer(),
01799       EndContainer(),
01800       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, WID_NS_SCROLL2BAR),
01801     EndContainer(),
01802     /* Left side, available grfs, buttons. */
01803     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPadding(2, 2, 2, 2), SetPIP(0, WD_RESIZEBOX_WIDTH, 0),
01804       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_ADD), SetFill(1, 0), SetResize(1, 0),
01805           SetDataTip(STR_NEWGRF_SETTINGS_ADD, STR_NEWGRF_SETTINGS_ADD_FILE_TOOLTIP),
01806       NWidget(NWID_VERTICAL),
01807         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_RESCAN_FILES), SetFill(1, 0), SetResize(1, 0),
01808             SetDataTip(STR_NEWGRF_SETTINGS_RESCAN_FILES, STR_NEWGRF_SETTINGS_RESCAN_FILES_TOOLTIP),
01809         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_CONTENT_DOWNLOAD), SetFill(1, 0), SetResize(1, 0),
01810             SetDataTip(STR_INTRO_ONLINE_CONTENT, STR_INTRO_TOOLTIP_ONLINE_CONTENT),
01811       EndContainer(),
01812     EndContainer(),
01813   EndContainer(),
01814 };
01815 
01816 static const NWidgetPart _nested_newgrf_infopanel_widgets[] = {
01817   /* Right side, info panel. */
01818   NWidget(NWID_VERTICAL), SetPadding(0, 0, 2, 0),
01819     NWidget(WWT_PANEL, COLOUR_MAUVE), SetPadding(0, 0, 2, 0),
01820       NWidget(WWT_EMPTY, COLOUR_MAUVE, WID_NS_NEWGRF_INFO_TITLE), SetFill(1, 0), SetResize(1, 0),
01821       NWidget(WWT_EMPTY, COLOUR_MAUVE, WID_NS_NEWGRF_INFO), SetFill(1, 1), SetResize(1, 1), SetMinimalSize(150, 100),
01822     EndContainer(),
01823     NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_OPEN_URL), SetFill(1, 0), SetResize(1, 0),
01824         SetDataTip(STR_CONTENT_OPEN_URL, STR_CONTENT_OPEN_URL_TOOLTIP),
01825     NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_NEWGRF_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0),
01826         SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
01827     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
01828       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_NEWGRF_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0),
01829           SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
01830       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_NEWGRF_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0),
01831           SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
01832     EndContainer(),
01833   EndContainer(),
01834   NWidget(NWID_SELECTION, INVALID_COLOUR, WID_NS_SHOW_APPLY),
01835     /* Right side, buttons. */
01836     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(0, WD_RESIZEBOX_WIDTH, 0),
01837       NWidget(NWID_VERTICAL),
01838         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_SET_PARAMETERS), SetFill(1, 0), SetResize(1, 0),
01839             SetDataTip(STR_NEWGRF_SETTINGS_SET_PARAMETERS, STR_NULL),
01840         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_TOGGLE_PALETTE), SetFill(1, 0), SetResize(1, 0),
01841             SetDataTip(STR_NEWGRF_SETTINGS_TOGGLE_PALETTE, STR_NEWGRF_SETTINGS_TOGGLE_PALETTE_TOOLTIP),
01842       EndContainer(),
01843       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_APPLY_CHANGES), SetFill(1, 0), SetResize(1, 0),
01844           SetDataTip(STR_NEWGRF_SETTINGS_APPLY_CHANGES, STR_NULL),
01845     EndContainer(),
01846     NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_NS_VIEW_PARAMETERS), SetFill(1, 0), SetResize(1, 0),
01847       SetDataTip(STR_NEWGRF_SETTINGS_SHOW_PARAMETERS, STR_NULL),
01848   EndContainer(),
01849 };
01850 
01852 NWidgetBase* NewGRFDisplay(int *biggest_index)
01853 {
01854   NWidgetBase *avs = MakeNWidgets(_nested_newgrf_availables_widgets, lengthof(_nested_newgrf_availables_widgets), biggest_index, NULL);
01855 
01856   int biggest2;
01857   NWidgetBase *acs = MakeNWidgets(_nested_newgrf_actives_widgets, lengthof(_nested_newgrf_actives_widgets), &biggest2, NULL);
01858   *biggest_index = max(*biggest_index, biggest2);
01859 
01860   NWidgetBase *inf = MakeNWidgets(_nested_newgrf_infopanel_widgets, lengthof(_nested_newgrf_infopanel_widgets), &biggest2, NULL);
01861   *biggest_index = max(*biggest_index, biggest2);
01862 
01863   return new NWidgetNewGRFDisplay(avs, acs, inf);
01864 }
01865 
01866 /* Widget definition of the manage newgrfs window */
01867 static const NWidgetPart _nested_newgrf_widgets[] = {
01868   NWidget(NWID_HORIZONTAL),
01869     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
01870     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_NEWGRF_SETTINGS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01871     NWidget(WWT_DEFSIZEBOX, COLOUR_MAUVE),
01872   EndContainer(),
01873   NWidget(WWT_PANEL, COLOUR_MAUVE),
01874     NWidgetFunction(NewGRFDisplay), SetPadding(WD_RESIZEBOX_WIDTH, WD_RESIZEBOX_WIDTH, 2, WD_RESIZEBOX_WIDTH),
01875     /* Resize button. */
01876     NWidget(NWID_HORIZONTAL),
01877       NWidget(NWID_SPACER), SetFill(1, 0), SetResize(1, 0),
01878       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
01879     EndContainer(),
01880   EndContainer(),
01881 };
01882 
01883 /* Window definition of the manage newgrfs window */
01884 static WindowDesc _newgrf_desc(
01885   WDP_CENTER, "settings_newgrf", 300, 263,
01886   WC_GAME_OPTIONS, WC_NONE,
01887   0,
01888   _nested_newgrf_widgets, lengthof(_nested_newgrf_widgets)
01889 );
01890 
01896 static void NewGRFConfirmationCallback(Window *w, bool confirmed)
01897 {
01898   if (confirmed) {
01899     DeleteWindowByClass(WC_GRF_PARAMETERS);
01900     NewGRFWindow *nw = dynamic_cast<NewGRFWindow*>(w);
01901 
01902     GamelogStartAction(GLAT_GRF);
01903     GamelogGRFUpdate(_grfconfig, nw->actives); // log GRF changes
01904     CopyGRFConfigList(nw->orig_list, nw->actives, false);
01905     ReloadNewGRFData();
01906     GamelogStopAction();
01907 
01908     /* Show new, updated list */
01909     GRFConfig *c;
01910     int i = 0;
01911     for (c = nw->actives; c != NULL && c != nw->active_sel; c = c->next, i++) {}
01912     CopyGRFConfigList(&nw->actives, *nw->orig_list, false);
01913     for (c = nw->actives; c != NULL && i > 0; c = c->next, i--) {}
01914     nw->active_sel = c;
01915     nw->avails.ForceRebuild();
01916 
01917     w->InvalidateData();
01918 
01919     ReInitAllWindows();
01920     DeleteWindowByClass(WC_BUILD_OBJECT);
01921   }
01922 }
01923 
01924 
01925 
01934 void ShowNewGRFSettings(bool editable, bool show_params, bool exec_changes, GRFConfig **config)
01935 {
01936   DeleteWindowByClass(WC_GAME_OPTIONS);
01937   new NewGRFWindow(&_newgrf_desc, editable, show_params, exec_changes, config);
01938 }
01939 
01941 static const NWidgetPart _nested_scan_progress_widgets[] = {
01942   NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_NEWGRF_SCAN_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01943   NWidget(WWT_PANEL, COLOUR_GREY),
01944     NWidget(NWID_HORIZONTAL), SetPIP(20, 0, 20),
01945       NWidget(NWID_VERTICAL), SetPIP(11, 8, 11),
01946         NWidget(WWT_LABEL, INVALID_COLOUR), SetDataTip(STR_NEWGRF_SCAN_MESSAGE, STR_NULL), SetFill(1, 0),
01947         NWidget(WWT_EMPTY, INVALID_COLOUR, WID_SP_PROGRESS_BAR), SetFill(1, 0),
01948         NWidget(WWT_EMPTY, INVALID_COLOUR, WID_SP_PROGRESS_TEXT), SetFill(1, 0),
01949       EndContainer(),
01950     EndContainer(),
01951   EndContainer(),
01952 };
01953 
01955 static WindowDesc _scan_progress_desc(
01956   WDP_CENTER, NULL, 0, 0,
01957   WC_MODAL_PROGRESS, WC_NONE,
01958   0,
01959   _nested_scan_progress_widgets, lengthof(_nested_scan_progress_widgets)
01960 );
01961 
01963 struct ScanProgressWindow : public Window {
01964   char *last_name; 
01965   int scanned;     
01966 
01968   ScanProgressWindow() : Window(&_scan_progress_desc), last_name(NULL), scanned(0)
01969   {
01970     this->InitNested(1);
01971   }
01972 
01974   ~ScanProgressWindow()
01975   {
01976     free(last_name);
01977   }
01978 
01979   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01980   {
01981     switch (widget) {
01982       case WID_SP_PROGRESS_BAR: {
01983         SetDParamMaxValue(0, 100);
01984         *size = GetStringBoundingBox(STR_GENERATION_PROGRESS);
01985         /* We need some spacing for the 'border' */
01986         size->height += 8;
01987         size->width += 8;
01988         break;
01989       }
01990 
01991       case WID_SP_PROGRESS_TEXT:
01992         SetDParamMaxDigits(0, 4);
01993         SetDParamMaxDigits(1, 4);
01994         /* We really don't know the width. We could determine it by scanning the NewGRFs,
01995          * but this is the status window for scanning them... */
01996         size->width = max(400U, GetStringBoundingBox(STR_NEWGRF_SCAN_STATUS).width);
01997         size->height = FONT_HEIGHT_NORMAL * 2 + WD_PAR_VSEP_NORMAL;
01998         break;
01999     }
02000   }
02001 
02002   virtual void DrawWidget(const Rect &r, int widget) const
02003   {
02004     switch (widget) {
02005       case WID_SP_PROGRESS_BAR: {
02006         /* Draw the % complete with a bar and a text */
02007         DrawFrameRect(r.left, r.top, r.right, r.bottom, COLOUR_GREY, FR_BORDERONLY);
02008         uint percent = scanned * 100 / max(1U, _settings_client.gui.last_newgrf_count);
02009         DrawFrameRect(r.left + 1, r.top + 1, (int)((r.right - r.left - 2) * percent / 100) + r.left + 1, r.bottom - 1, COLOUR_MAUVE, FR_NONE);
02010         SetDParam(0, percent);
02011         DrawString(r.left, r.right, r.top + 5, STR_GENERATION_PROGRESS, TC_FROMSTRING, SA_HOR_CENTER);
02012         break;
02013       }
02014 
02015       case WID_SP_PROGRESS_TEXT:
02016         SetDParam(0, this->scanned);
02017         SetDParam(1, _settings_client.gui.last_newgrf_count);
02018         DrawString(r.left, r.right, r.top, STR_NEWGRF_SCAN_STATUS, TC_FROMSTRING, SA_HOR_CENTER);
02019 
02020         DrawString(r.left, r.right, r.top + FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL, this->last_name == NULL ? "" : this->last_name, TC_BLACK, SA_HOR_CENTER);
02021         break;
02022     }
02023   }
02024 
02030   void UpdateNewGRFScanStatus(uint num, const char *name)
02031   {
02032     free(this->last_name);
02033     if (name == NULL) {
02034       char buf[256];
02035       GetString(buf, STR_NEWGRF_SCAN_ARCHIVES, lastof(buf));
02036       this->last_name = strdup(buf);
02037     } else {
02038       this->last_name = strdup(name);
02039     }
02040     this->scanned = num;
02041     if (num > _settings_client.gui.last_newgrf_count) _settings_client.gui.last_newgrf_count = num;
02042 
02043     this->SetDirty();
02044   }
02045 };
02046 
02052 void UpdateNewGRFScanStatus(uint num, const char *name)
02053 {
02054   ScanProgressWindow *w  = dynamic_cast<ScanProgressWindow *>(FindWindowByClass(WC_MODAL_PROGRESS));
02055   if (w == NULL) w = new ScanProgressWindow();
02056   w->UpdateNewGRFScanStatus(num, name);
02057 }