/* * File: wb_dc.h * Purpose: wxDC device context declaration * Author: Julian Smart * Created: 1993 * Updated: * Copyright: (c) 1993, AIAI, University of Edinburgh */ /* sccsid[] = "@(#)wb_dc.h 1.2 5/9/94" */ #ifndef wxb_dch #define wxb_dch #ifdef __GNUG__ #pragma interface #endif #ifndef IN_CPROTO #include #endif #include "common.h" #include "wx_frame.h" #include "wx_gdi.h" #define wxDEVICE_CANVAS 1 // X canvas #define wxDEVICE_EPS 2 // Encapsulated PostScript on any platform #define wxDEVICE_WINDOWS 3 // MS Windows device (canvas, printer) #define wxDEVICE_PIXMAP 4 // X pixmap #ifdef wx_x #define MM_TEXT 1 #define MM_ISOTROPIC 2 #define MM_ANISOTROPIC 3 #define MM_LOMETRIC 4 #define MM_HIMETRIC 5 #define MM_TWIPS 6 #endif #define MM_POINTS 7 #define MM_METRIC 8 #ifdef IN_CPROTO typedef void *wxbDC ; #else class wxCanvas; class wxCanvasDC; class wxDC; class wxbDC: public wxObject { protected: Bool dcOptimize; public: int device; Bool ok; Bool clipping; Bool wx_interactive; // Coordinate system variables float logical_origin_x; float logical_origin_y; float device_origin_x; float device_origin_y; float logical_scale_x; float logical_scale_y; float user_scale_x; float user_scale_y; int mapping_mode; float min_x; // bounding box float min_y; float max_x; float max_y; char *title; Bool Colour; int current_logical_function; int current_bk_mode; wxPen *current_pen; wxBrush *current_brush; wxBrush *current_background_brush; wxColour current_text_foreground; wxColour current_text_background; wxFont *font; Bool autoSetting ; wxbDC(void); // Create a printer DC // wxDC(char *driver, char *device, char *output, Bool interactive = TRUE); ~wxbDC(void); // // This function is intended to improves drawing, by avoiding to // repeatly call ::SetPen/::SetBrush. If set to FALSE, these functions // aren't called when calling ::DrawLine(),... // Please note that this is YOUR responsability to use it, and do it // only when you KNOWN that pen/brush isn't changed between 2 calls to // DrawLine,... !!! // Note also that in X, we don't test autoSetting on brushes, because they // modify Foreground, as pens. So, convention is: // - call your SetBrush(), THEN your SetPen, THEN AutoSetTools(FALSE) // - call DrawLine,... // [mainly coded for Windows] inline virtual void AutoSetTools(Bool auto_setting) { autoSetting = auto_setting ; } inline virtual void BeginDrawing(void) {} ; inline virtual void EndDrawing(void) {} ; virtual void FloodFill(float x1, float y1, wxColour *col, int style=wxFLOOD_SURFACE) = 0; virtual Bool GetPixel(float x1, float y1, wxColour *col) = 0; virtual void DrawLine(float x1, float y1, float x2, float y2) = 0; virtual void IntDrawLine(int x1, int y1, int x2, int y2) = 0; virtual void CrossHair(int x, int y) = 0; virtual void DrawArc(float x1,float y1,float x2,float y2,float xc,float yc)=0; virtual void DrawPoint(float x, float y) = 0; inline virtual void DrawPoint(wxPoint& point) { DrawPoint(point.x, point.y); } virtual void DrawLines(int n, wxPoint points[], float xoffset = 0, float yoffset = 0) = 0; virtual void DrawLines(int n, wxIntPoint points[], int xoffset = 0, int yoffset = 0) = 0; virtual void DrawLines(wxList *list, float xoffset = 0, float yoffset = 0); virtual void DrawPolygon(int n, wxPoint points[], float xoffset = 0, float yoffset = 0, int fillStyle=wxODDEVEN_RULE) = 0; virtual void DrawPolygon(wxList *list, float xoffset = 0, float yoffset = 0, int fillStyle=wxODDEVEN_RULE); virtual void DrawRectangle(float x, float y, float width, float height) = 0; virtual void DrawRoundedRectangle(float x, float y, float width, float height, float radius = 20) = 0; virtual void DrawEllipse(float x, float y, float width, float height) = 0; #if USE_SPLINES // Splines // 3-point spline virtual void DrawSpline(float x1, float y1, float x2, float y2, float x3, float y3); // Any number of control points - a list of pointers to wxPoints virtual void DrawSpline(wxList *points); virtual void DrawSpline(int n, wxPoint points[]); #endif virtual void DrawIcon(wxIcon *icon, float x, float y) = 0; virtual void DrawText(const char *text, float x, float y) = 0; virtual void Clear(void) = 0; virtual Bool StartDoc(char *message) = 0; virtual void EndDoc(void) = 0; virtual void StartPage(void) = 0; virtual void EndPage(void) = 0; virtual void SetFont(wxFont *font) = 0; virtual void SetPen(wxPen *pen) = 0; virtual void SetBrush(wxBrush *brush) = 0; virtual void SetLogicalFunction(int function) = 0; virtual void SetBackground(wxBrush *brush) = 0; virtual void SetTextForeground(wxColour *colour); virtual void SetTextBackground(wxColour *colour); virtual void SetBackgroundMode(int mode); // wxSOLID or wxTRANSPARENT // for drawing background colour virtual void SetClippingRegion(float x, float y, float width, float height)= 0; inline virtual void SetColourMap(wxColourMap *cmap) {}; virtual void DestroyClippingRegion(void) = 0; virtual float GetCharHeight(void) = 0; virtual float GetCharWidth(void) = 0; virtual void GetTextExtent(const char *string, float *x, float *y, float *descent = NULL, float *externalLeading = NULL, wxFont *theFont = NULL) = 0; inline virtual Bool Ok(void) {return ok;}; virtual Bool CanGetTextExtent(void) = 0; virtual Bool CanDrawBitmap(void) = 0; virtual void SetMapMode(int mode) = 0; inline virtual int GetMapMode(void) {return mapping_mode;}; // The following methods provide a cleaner interface inline virtual wxBrush *GetBackground(void) { return current_background_brush ;} inline virtual wxBrush *GetBrush(void) { return current_brush ;} inline virtual wxFont *GetFont(void) { return font ;} inline virtual int GetLogicalFunction(void) { return current_logical_function ;} inline virtual wxPen *GetPen(void) { return current_pen ;} inline virtual wxColour&GetTextBackground(void) { return current_text_background ;} inline virtual wxColour&GetTextForeground(void) { return current_text_background ;} virtual void SetLogicalOrigin(float x, float y); virtual void SetDeviceOrigin(float x, float y); virtual void SetLogicalScale(float x, float y); virtual void SetUserScale(float x, float y) = 0; virtual float DeviceToLogicalX(int x) = 0; virtual float DeviceToLogicalY(int y) = 0; virtual float DeviceToLogicalXRel(int x) = 0; virtual float DeviceToLogicalYRel(int y) = 0; virtual int LogicalToDeviceX(float x) = 0; virtual int LogicalToDeviceY(float y) = 0; virtual int LogicalToDeviceXRel(float x) = 0; virtual int LogicalToDeviceYRel(float y) = 0; // Only works for PostScript *after* you've printed an image. // Gives width and height of image. virtual void GetSize(float *width, float *height); virtual inline void GetSizeMM(float *width, float *height) { *width = 0.0; *height = 0.0; }; virtual void CalcBoundingBox(float x, float y); // Get the final bounding box of the PostScript or Metafile picture. virtual inline float MinX(void) { return min_x; } virtual inline float MaxX(void) { return max_x; } virtual inline float MinY(void) { return min_y; } virtual inline float MaxY(void) { return max_y; } virtual Bool Blit(float xdest, float ydest, float width, float height, wxCanvasDC *source, float xsrc, float ysrc, int rop = wxCOPY) = 0; // Sometimes we need to override optimization, e.g. // if other software is drawing onto our surface and we // can't be sure of who's done what. inline virtual void SetOptimization(Bool opt) { dcOptimize = opt; } inline virtual Bool GetOptimization(Bool opt) { return dcOptimize; } }; /* extern char wx_printer_file[]; extern float wx_printer_scale_x; extern float wx_printer_scale_y; extern float wx_printer_translate_x; extern float wx_printer_translate_y; */ extern int wxPageNumber; // Conversion #define METRIC_CONVERSION_CONSTANT 0.0393700787 // Scaling factors for various unit conversions #define mm2inches (METRIC_CONVERSION_CONSTANT) #define inches2mm (1/METRIC_CONVERSION_CONSTANT) #define mm2twips (METRIC_CONVERSION_CONSTANT*1440) #define twips2mm (1/(METRIC_CONVERSION_CONSTANT*1440)) #define mm2pt (METRIC_CONVERSION_CONSTANT*72) #define pt2mm (1/(METRIC_CONVERSION_CONSTANT*72)) #define wx_round(a) (int)((a)+.5) #endif // IN_CPROTO #endif // wxb_dch