# statusbar_gui.cpp

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    00001 /* $Id: statusbar_gui.cpp 18597 2009-12-21 21:14:40Z 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
    00029 #include "table/strings.h"
    00030 #include "table/sprites.h"
    00031
    00032 static bool DrawScrollingStatusText(const NewsItem *ni, int scroll_pos, int left, int right, int top, int bottom)
    00033 {
    00034   CopyInDParam(0, ni->params, lengthof(ni->params));
    00035   StringID str = ni->string_id;
    00036
    00037   char buf[512];
    00038   GetString(buf, str, lastof(buf));
    00039   const char *s = buf;
    00040
    00041   char buffer[256];
    00042   char *d = buffer;
    00043   const char *last = lastof(buffer);
    00044
    00045   for (;;) {
    00046     WChar c = Utf8Consume(&s);
    00047     if (c == 0) {
    00048       break;
    00049     } else if (c == '\n') {
    00050       if (d + 4 >= last) break;
    00051       d[0] = d[1] = d[2] = d[3] = ' ';
    00052       d += 4;
    00053     } else if (IsPrintable(c)) {
    00054       if (d + Utf8CharLen(c) >= last) break;
    00055       d += Utf8Encode(d, c);
    00056     }
    00057   }
    00058   *d = '\0';
    00059
    00060   DrawPixelInfo tmp_dpi;
    00061   if (!FillDrawPixelInfo(&tmp_dpi, left, top, right - left, bottom)) return true;
    00062
    00063   int width = GetStringBoundingBox(buffer).width;
    00064   int pos = (_dynlang.text_dir == TD_RTL) ? (scroll_pos - width) : (right - scroll_pos - left);
    00065
    00066   DrawPixelInfo *old_dpi = _cur_dpi;
    00067   _cur_dpi = &tmp_dpi;
    00068   DrawString(pos, INT16_MAX, 0, buffer, TC_LIGHT_BLUE, SA_LEFT | SA_FORCE);
    00069   _cur_dpi = old_dpi;
    00070
    00071   return (_dynlang.text_dir == TD_RTL) ? (pos < right - left) : (pos + width > 0);
    00072 }
    00073
    00074 enum StatusbarWidget {
    00075   SBW_LEFT,
    00076   SBW_MIDDLE,
    00077   SBW_RIGHT,
    00078 };
    00079
    00080 struct StatusBarWindow : Window {
    00081   bool saving;
    00082   int ticker_scroll;
    00083   int reminder_timeout;
    00084
    00085   enum {
    00086     TICKER_STOP    = 1640,
    00087     REMINDER_START =   91,
    00088     REMINDER_STOP  =    0,
    00089     COUNTER_STEP   =    2,
    00090   };
    00091
    00092   StatusBarWindow(const WindowDesc *desc) : Window()
    00093   {
    00094     CLRBITS(this->flags4, WF_WHITE_BORDER_MASK);
    00095     this->ticker_scroll    =   TICKER_STOP;
    00096     this->reminder_timeout = REMINDER_STOP;
    00097
    00098     this->InitNested(desc);
    00099   }
    00100
    00101   virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
    00102   {
    00103     Point pt = { (_screen.width - max(sm_width, desc->default_width)) / 2, _screen.height - sm_height };
    00104     return pt;
    00105   }
    00106
    00107   virtual void OnPaint()
    00108   {
    00109     this->DrawWidgets();
    00110   }
    00111
    00112   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00113   {
    00114     Dimension d;
    00115     switch (widget) {
    00116       case SBW_LEFT:
    00117         SetDParam(0, MAX_YEAR * DAYS_IN_YEAR);
    00118         d = GetStringBoundingBox(STR_WHITE_DATE_LONG);
    00119         break;
    00120
    00121       case SBW_RIGHT: {
    00122         int64 max_money = UINT32_MAX;
    00123         const Company *c;
    00124         FOR_ALL_COMPANIES(c) max_money = max<int64>(c->money, max_money);
    00125         SetDParam(0, 100LL * max_money);
    00126         d = GetStringBoundingBox(STR_COMPANY_MONEY);
    00127       } break;
    00128
    00129       default:
    00130         return;
    00131     }
    00132
    00133     d.width += padding.width;
    00134     d.height += padding.height;
    00135     *size = maxdim(d, *size);
    00136   }
    00137
    00138   virtual void DrawWidget(const Rect &r, int widget) const
    00139   {
    00140     switch (widget) {
    00141       case SBW_LEFT:
    00142         /* Draw the date */
    00143         SetDParam(0, _date);
    00144         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);
    00145         break;
    00146
    00147       case SBW_RIGHT: {
    00148         /* Draw company money, if any */
    00149         const Company *c = Company::GetIfValid(_local_company);
    00150         if (c != NULL) {
    00151           SetDParam(0, c->money);
    00152           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_COMPANY_MONEY, TC_FROMSTRING, SA_CENTER);
    00153         }
    00154       } break;
    00155
    00156       case SBW_MIDDLE:
    00157         /* Draw status bar */
    00158         if (this->saving) { // true when saving is active
    00159           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_SAVING_GAME, TC_FROMSTRING, SA_CENTER);
    00160         } else if (_do_autosave) {
    00161           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_AUTOSAVE, TC_FROMSTRING, SA_CENTER);
    00162         } else if (_pause_mode != PM_UNPAUSED) {
    00163           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_PAUSED, TC_FROMSTRING, SA_CENTER);
    00164         } else if (this->ticker_scroll < TICKER_STOP && FindWindowById(WC_NEWS_WINDOW, 0) == NULL && _statusbar_news_item != NULL && _statusbar_news_item->string_id != 0) {
    00165           /* Draw the scrolling news text */
    00166           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)) {
    00167             InvalidateWindowData(WC_STATUS_BAR, 0, SBI_NEWS_DELETED);
    00168             if (Company::IsValidID(_local_company)) {
    00169               /* This is the default text */
    00170               SetDParam(0, _local_company);
    00171               DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_COMPANY_NAME, TC_FROMSTRING, SA_CENTER);
    00172             }
    00173           }
    00174         } else {
    00175           if (Company::IsValidID(_local_company)) {
    00176             /* This is the default text */
    00177             SetDParam(0, _local_company);
    00178             DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, STR_STATUSBAR_COMPANY_NAME, TC_FROMSTRING, SA_CENTER);
    00179           }
    00180         }
    00181
    00182         if (this->reminder_timeout > 0) DrawSprite(SPR_BLOT, PALETTE_TO_RED, r.right - WD_FRAMERECT_RIGHT - 10, r.top + WD_FRAMERECT_TOP + 1);
    00183         break;
    00184     }
    00185   }
    00186
    00187   virtual void OnInvalidateData(int data)
    00188   {
    00189     switch (data) {
    00190       default: NOT_REACHED();
    00191       case SBI_SAVELOAD_START:  this->saving = true;  break;
    00192       case SBI_SAVELOAD_FINISH: this->saving = false; break;
    00193       case SBI_SHOW_TICKER:     this->ticker_scroll = 0; break;
    00194       case SBI_SHOW_REMINDER:   this->reminder_timeout = REMINDER_START; break;
    00195       case SBI_NEWS_DELETED:
    00196         this->ticker_scroll    =   TICKER_STOP; // reset ticker ...
    00197         this->reminder_timeout = REMINDER_STOP; // ... and reminder
    00198         break;
    00199     }
    00200   }
    00201
    00202   virtual void OnClick(Point pt, int widget)
    00203   {
    00204     switch (widget) {
    00205       case SBW_MIDDLE: ShowLastNewsMessage(); break;
    00206       case SBW_RIGHT:  if (_local_company != COMPANY_SPECTATOR) ShowCompanyFinances(_local_company); break;
    00207       default: ResetObjectToPlace();
    00208     }
    00209   }
    00210
    00211   virtual void OnTick()
    00212   {
    00213     if (_pause_mode != PM_UNPAUSED) return;
    00214
    00215     if (this->ticker_scroll < TICKER_STOP) { // Scrolling text
    00216       this->ticker_scroll += COUNTER_STEP;
    00217       this->SetWidgetDirty(SBW_MIDDLE);
    00218     }
    00219
    00220     if (this->reminder_timeout > REMINDER_STOP) { // Red blot to show there are new unread newsmessages
    00221       this->reminder_timeout -= COUNTER_STEP;
    00222     } else if (this->reminder_timeout < REMINDER_STOP) {
    00223       this->reminder_timeout = REMINDER_STOP;
    00224       this->SetWidgetDirty(SBW_MIDDLE);
    00225     }
    00226   }
    00227 };
    00228
    00229 static const NWidgetPart _nested_main_status_widgets[] = {
    00230   NWidget(NWID_HORIZONTAL),
    00231     NWidget(WWT_PANEL, COLOUR_GREY, SBW_LEFT), SetMinimalSize(140, 12), EndContainer(),
    00232     NWidget(WWT_PUSHBTN, COLOUR_GREY, SBW_MIDDLE), SetMinimalSize(40, 12), SetDataTip(0x0, STR_STATUSBAR_TOOLTIP_SHOW_LAST_NEWS), SetResize(1, 0),
    00233     NWidget(WWT_PUSHBTN, COLOUR_GREY, SBW_RIGHT), SetMinimalSize(140, 12),
    00234   EndContainer(),
    00235 };
    00236
    00237 static const WindowDesc _main_status_desc(
    00238   WDP_MANUAL, 640, 12,
    00239   WC_STATUS_BAR, WC_NONE,
    00240   WDF_UNCLICK_BUTTONS | WDF_NO_FOCUS,
    00241   _nested_main_status_widgets, lengthof(_nested_main_status_widgets)
    00242 );
    00243
    00247 bool IsNewsTickerShown()
    00248 {
    00249   const StatusBarWindow *w = dynamic_cast<StatusBarWindow*>(FindWindowById(WC_STATUS_BAR, 0));
    00250   return w != NULL && w->ticker_scroll < StatusBarWindow::TICKER_STOP;
    00251 }
    00252
    00253 void ShowStatusBar()
    00254 {
    00255   new StatusBarWindow(&_main_status_desc);
    00256 }