statusbar_gui.cpp

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00001 /* $Id: statusbar_gui.cpp 18966 2010-01-30 18:34:48Z 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 "openttd.h"
00014 #include "date_func.h"
00015 #include "gfx_func.h"
00016 #include "news_func.h"
00017 #include "company_func.h"
00018 #include "string_func.h"
00019 #include "strings_func.h"
00020 #include "company_base.h"
00021 #include "tilehighlight_func.h"
00022 #include "news_gui.h"
00023 #include "company_gui.h"
00024 #include "window_gui.h"
00025 #include "variables.h"
00026 #include "window_func.h"
00027 #include "statusbar_gui.h"
00028 #include "core/geometry_func.hpp"
00029 
00030 #include "table/strings.h"
00031 #include "table/sprites.h"
00032 
00033 static bool DrawScrollingStatusText(const NewsItem *ni, int scroll_pos, int left, int right, int top, int bottom)
00034 {
00035   CopyInDParam(0, ni->params, lengthof(ni->params));
00036   StringID str = ni->string_id;
00037 
00038   char buf[512];
00039   GetString(buf, str, lastof(buf));
00040   const char *s = buf;
00041 
00042   char buffer[256];
00043   char *d = buffer;
00044   const char *last = lastof(buffer);
00045 
00046   for (;;) {
00047     WChar c = Utf8Consume(&s);
00048     if (c == 0) {
00049       break;
00050     } else if (c == '\n') {
00051       if (d + 4 >= last) break;
00052       d[0] = d[1] = d[2] = d[3] = ' ';
00053       d += 4;
00054     } else if (IsPrintable(c)) {
00055       if (d + Utf8CharLen(c) >= last) break;
00056       d += Utf8Encode(d, c);
00057     }
00058   }
00059   *d = '\0';
00060 
00061   DrawPixelInfo tmp_dpi;
00062   if (!FillDrawPixelInfo(&tmp_dpi, left, top, right - left, bottom)) return true;
00063 
00064   int width = GetStringBoundingBox(buffer).width;
00065   int pos = (_dynlang.text_dir == TD_RTL) ? (scroll_pos - width) : (right - scroll_pos - left);
00066 
00067   DrawPixelInfo *old_dpi = _cur_dpi;
00068   _cur_dpi = &tmp_dpi;
00069   DrawString(pos, INT16_MAX, 0, buffer, TC_LIGHT_BLUE, SA_LEFT | SA_FORCE);
00070   _cur_dpi = old_dpi;
00071 
00072   return (_dynlang.text_dir == TD_RTL) ? (pos < right - left) : (pos + width > 0);
00073 }
00074 
00075 enum StatusbarWidget {
00076   SBW_LEFT,   
00077   SBW_MIDDLE, 
00078   SBW_RIGHT,  
00079 };
00080 
00081 struct StatusBarWindow : Window {
00082   bool saving;
00083   int ticker_scroll;
00084   int reminder_timeout;
00085 
00086   enum {
00087     TICKER_STOP    = 1640, 
00088     REMINDER_START =   91, 
00089     REMINDER_STOP  =    0, 
00090     COUNTER_STEP   =    2, 
00091   };
00092 
00093   StatusBarWindow(const WindowDesc *desc) : Window()
00094   {
00095     CLRBITS(this->flags4, WF_WHITE_BORDER_MASK);
00096     this->ticker_scroll    =   TICKER_STOP;
00097     this->reminder_timeout = REMINDER_STOP;
00098 
00099     this->InitNested(desc);
00100   }
00101 
00102   virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
00103   {
00104     Point pt = { (_screen.width - max(sm_width, desc->default_width)) / 2, _screen.height - sm_height };
00105     return pt;
00106   }
00107 
00108   virtual void OnPaint()
00109   {
00110     this->DrawWidgets();
00111   }
00112 
00113   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00114   {
00115     Dimension d;
00116     switch (widget) {
00117       case SBW_LEFT:
00118         SetDParam(0, MAX_YEAR * DAYS_IN_YEAR);
00119         d = GetStringBoundingBox(STR_WHITE_DATE_LONG);
00120         break;
00121 
00122       case SBW_RIGHT: {
00123         int64 max_money = UINT32_MAX;
00124         const Company *c;
00125         FOR_ALL_COMPANIES(c) max_money = max<int64>(c->money, max_money);
00126         SetDParam(0, 100LL * max_money);
00127         d = GetStringBoundingBox(STR_COMPANY_MONEY);
00128       } break;
00129 
00130       default:
00131         return;
00132     }
00133 
00134     d.width += padding.width;
00135     d.height += padding.height;
00136     *size = maxdim(d, *size);
00137   }
00138 
00139   virtual void DrawWidget(const Rect &r, int widget) const
00140   {
00141     switch (widget) {
00142       case SBW_LEFT:
00143         /* Draw the date */
00144         SetDParam(0, _date);
00145         DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, (_pause_mode || _settings_client.gui.status_long_date) ? STR_WHITE_DATE_LONG : STR_WHITE_DATE_SHORT, TC_FROMSTRING, SA_CENTER);
00146         break;
00147 
00148       case SBW_RIGHT: {
00149         /* Draw company money, if any */
00150         const Company *c = Company::GetIfValid(_local_company);
00151         if (c != NULL) {
00152           SetDParam(0, c->money);
00153           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_COMPANY_MONEY, TC_FROMSTRING, SA_CENTER);
00154         }
00155       } break;
00156 
00157       case SBW_MIDDLE:
00158         /* Draw status bar */
00159         if (this->saving) { // true when saving is active
00160           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_SAVING_GAME, TC_FROMSTRING, SA_CENTER);
00161         } else if (_do_autosave) {
00162           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_AUTOSAVE, TC_FROMSTRING, SA_CENTER);
00163         } else if (_pause_mode != PM_UNPAUSED) {
00164           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_PAUSED, TC_FROMSTRING, SA_CENTER);
00165         } else if (this->ticker_scroll < TICKER_STOP && FindWindowById(WC_NEWS_WINDOW, 0) == NULL && _statusbar_news_item != NULL && _statusbar_news_item->string_id != 0) {
00166           /* Draw the scrolling news text */
00167           if (!DrawScrollingStatusText(_statusbar_news_item, this->ticker_scroll, r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, r.bottom)) {
00168             InvalidateWindowData(WC_STATUS_BAR, 0, SBI_NEWS_DELETED);
00169             if (Company::IsValidID(_local_company)) {
00170               /* This is the default text */
00171               SetDParam(0, _local_company);
00172               DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_COMPANY_NAME, TC_FROMSTRING, SA_CENTER);
00173             }
00174           }
00175         } else {
00176           if (Company::IsValidID(_local_company)) {
00177             /* This is the default text */
00178             SetDParam(0, _local_company);
00179             DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_COMPANY_NAME, TC_FROMSTRING, SA_CENTER);
00180           }
00181         }
00182 
00183         if (this->reminder_timeout > 0) DrawSprite(SPR_BLOT, PALETTE_TO_RED, r.right - WD_FRAMERECT_RIGHT - 10, r.top + WD_FRAMERECT_TOP + 1);
00184         break;
00185     }
00186   }
00187 
00188   virtual void OnInvalidateData(int data)
00189   {
00190     switch (data) {
00191       default: NOT_REACHED();
00192       case SBI_SAVELOAD_START:  this->saving = true;  break;
00193       case SBI_SAVELOAD_FINISH: this->saving = false; break;
00194       case SBI_SHOW_TICKER:     this->ticker_scroll = 0; break;
00195       case SBI_SHOW_REMINDER:   this->reminder_timeout = REMINDER_START; break;
00196       case SBI_NEWS_DELETED:
00197         this->ticker_scroll    =   TICKER_STOP; // reset ticker ...
00198         this->reminder_timeout = REMINDER_STOP; // ... and reminder
00199         break;
00200     }
00201   }
00202 
00203   virtual void OnClick(Point pt, int widget, int click_count)
00204   {
00205     switch (widget) {
00206       case SBW_MIDDLE: ShowLastNewsMessage(); break;
00207       case SBW_RIGHT:  if (_local_company != COMPANY_SPECTATOR) ShowCompanyFinances(_local_company); break;
00208       default: ResetObjectToPlace();
00209     }
00210   }
00211 
00212   virtual void OnTick()
00213   {
00214     if (_pause_mode != PM_UNPAUSED) return;
00215 
00216     if (this->ticker_scroll < TICKER_STOP) { // Scrolling text
00217       this->ticker_scroll += COUNTER_STEP;
00218       this->SetWidgetDirty(SBW_MIDDLE);
00219     }
00220 
00221     if (this->reminder_timeout > REMINDER_STOP) { // Red blot to show there are new unread newsmessages
00222       this->reminder_timeout -= COUNTER_STEP;
00223     } else if (this->reminder_timeout < REMINDER_STOP) {
00224       this->reminder_timeout = REMINDER_STOP;
00225       this->SetWidgetDirty(SBW_MIDDLE);
00226     }
00227   }
00228 };
00229 
00230 static const NWidgetPart _nested_main_status_widgets[] = {
00231   NWidget(NWID_HORIZONTAL),
00232     NWidget(WWT_PANEL, COLOUR_GREY, SBW_LEFT), SetMinimalSize(140, 12), EndContainer(),
00233     NWidget(WWT_PUSHBTN, COLOUR_GREY, SBW_MIDDLE), SetMinimalSize(40, 12), SetDataTip(0x0, STR_STATUSBAR_TOOLTIP_SHOW_LAST_NEWS), SetResize(1, 0),
00234     NWidget(WWT_PUSHBTN, COLOUR_GREY, SBW_RIGHT), SetMinimalSize(140, 12),
00235   EndContainer(),
00236 };
00237 
00238 static const WindowDesc _main_status_desc(
00239   WDP_MANUAL, 640, 12,
00240   WC_STATUS_BAR, WC_NONE,
00241   WDF_UNCLICK_BUTTONS | WDF_NO_FOCUS,
00242   _nested_main_status_widgets, lengthof(_nested_main_status_widgets)
00243 );
00244 
00248 bool IsNewsTickerShown()
00249 {
00250   const StatusBarWindow *w = dynamic_cast<StatusBarWindow*>(FindWindowById(WC_STATUS_BAR, 0));
00251   return w != NULL && w->ticker_scroll < StatusBarWindow::TICKER_STOP;
00252 }
00253 
00254 void ShowStatusBar()
00255 {
00256   new StatusBarWindow(&_main_status_desc);
00257 }

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