smallmap_gui.h

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00001 /* $Id$ */
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 #ifndef SMALLMAP_GUI_H
00013 #define SMALLMAP_GUI_H
00014 
00015 #include "industry_type.h"
00016 #include "window_gui.h"
00017 #include "strings_func.h"
00018 #include "blitter/factory.hpp"
00019 #include "linkgraph_gui.h"
00020 #include "widgets/smallmap_widget.h"
00021 
00022 /* set up the cargos to be displayed in the smallmap's route legend */
00023 void BuildLinkStatsLegend();
00024 
00025 void BuildIndustriesLegend();
00026 void ShowSmallMap();
00027 void BuildLandLegend();
00028 void BuildOwnerLegend();
00029 
00031 struct LegendAndColour {
00032   uint8 colour;              
00033   StringID legend;           
00034   IndustryType type;         
00035   uint8 height;              
00036   CompanyID company;         
00037   bool show_on_map;          
00038   bool end;                  
00039   bool col_break;            
00040 };
00041 
00043 class SmallMapWindow : public Window {
00044 protected:
00046   enum SmallMapType {
00047     SMT_CONTOUR,
00048     SMT_VEHICLES,
00049     SMT_INDUSTRY,
00050     SMT_LINKSTATS,
00051     SMT_ROUTES,
00052     SMT_VEGETATION,
00053     SMT_OWNER,
00054   };
00055 
00057   enum ZoomLevelChange {
00058     ZLC_INITIALIZE, 
00059     ZLC_ZOOM_OUT,   
00060     ZLC_ZOOM_IN,    
00061   };
00062 
00063   static SmallMapType map_type; 
00064   static bool show_towns;       
00065 
00066   static const uint LEGEND_BLOB_WIDTH = 8;              
00067   static const uint INDUSTRY_MIN_NUMBER_OF_COLUMNS = 2; 
00068   static const uint8 FORCE_REFRESH_PERIOD = 0x1F; 
00069 
00070   uint min_number_of_fixed_rows; 
00071   uint column_width;             
00072 
00073   int32 scroll_x;  
00074   int32 scroll_y;  
00075   int32 subscroll; 
00076   int zoom;        
00077 
00078   uint8 refresh;   
00079   LinkGraphOverlay *overlay;
00080 
00081   Point SmallmapRemapCoords(int x, int y) const;
00082 
00089   static inline void DrawVertMapIndicator(int x, int y, int y2)
00090   {
00091     GfxFillRect(x, y,      x, y + 3, PC_VERY_LIGHT_YELLOW);
00092     GfxFillRect(x, y2 - 3, x, y2,    PC_VERY_LIGHT_YELLOW);
00093   }
00094 
00101   static inline void DrawHorizMapIndicator(int x, int x2, int y)
00102   {
00103     GfxFillRect(x,      y, x + 3, y, PC_VERY_LIGHT_YELLOW);
00104     GfxFillRect(x2 - 3, y, x2,    y, PC_VERY_LIGHT_YELLOW);
00105   }
00106 
00107   void DrawMapIndicators() const;
00108   void DrawSmallMapColumn(void *dst, uint xc, uint yc, int pitch, int reps, int start_pos, int end_pos, Blitter *blitter) const;
00109   void DrawVehicles(const DrawPixelInfo *dpi, Blitter *blitter) const;
00110   void DrawTowns(const DrawPixelInfo *dpi) const;
00111   void DrawSmallMap(DrawPixelInfo *dpi) const;
00112 
00113   Point RemapTile(int tile_x, int tile_y) const;
00114   Point PixelToTile(int px, int py, int *sub, bool add_sub = true) const;
00115   Point ComputeScroll(int tx, int ty, int x, int y, int *sub);
00116   void SetZoomLevel(ZoomLevelChange change, const Point *zoom_pt);
00117   void SetOverlayCargoMask();
00118   void SetupWidgetData();
00119   uint32 GetTileColours(const TileArea &ta) const;
00120 
00121 public:
00122   uint min_number_of_columns;    
00123 
00124   SmallMapWindow(const WindowDesc *desc, int window_number);
00125   virtual ~SmallMapWindow() {delete this->overlay;}
00126 
00131   inline uint GetMinLegendWidth() const
00132   {
00133     return WD_FRAMERECT_LEFT + this->min_number_of_columns * this->column_width;
00134   }
00135 
00140   inline uint GetNumberColumnsLegend(uint width) const
00141   {
00142     return width / this->column_width;
00143   }
00144 
00150   inline uint GetLegendHeight(uint num_columns) const
00151   {
00152     return WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM +
00153         this->GetNumberRowsLegend(num_columns) * FONT_HEIGHT_SMALL;
00154   }
00155 
00156   uint GetNumberRowsLegend(uint columns) const;
00157   Point GetStationMiddle(const Station *st) const;
00158   void SwitchMapType(SmallMapType map_type);
00159   void SetNewScroll(int sx, int sy, int sub);
00160   void SelectLegendItem(int click_pos, LegendAndColour *legend, int end_legend_item, int begin_legend_item = 0);
00161   void SmallMapCenterOnCurrentPos();
00162 
00163   virtual void SetStringParameters(int widget) const;
00164   virtual void OnInit();
00165   virtual void OnPaint();
00166   virtual void DrawWidget(const Rect &r, int widget) const;
00167   virtual void OnClick(Point pt, int widget, int click_count);
00168   virtual void OnInvalidateData(int data = 0, bool gui_scope = true);
00169   virtual bool OnRightClick(Point pt, int widget);
00170   virtual void OnMouseWheel(int wheel);
00171   virtual void OnTick();
00172   virtual void OnScroll(Point delta);
00173 };
00174 
00175 #endif /* SMALLMAP_GUI_H */