/* * File: wx_dc.h * Purpose: wxDC device context declaration * Author: Julian Smart * Created: 1993 * Updated: * Copyright: (c) 1993, AIAI, University of Edinburgh */ /* sccsid[] = "%W% %G%" */ #ifndef wx_dch #define wx_dch #include "wx_gdi.h" #include "wb_dc.h" #ifdef IN_CPROTO typedef void *wxDC ; typedef void *wxPrinterDC; #else // Since Windows handles DCs quite uniformly, we can have // a general wxWindowsDC, and derive canvas and printer DCs from this // with minimum extra functionality. class wxDC: public wxbDC { DECLARE_ABSTRACT_CLASS(wxDC) public: int clip_x1; int clip_y1; int clip_x2; int clip_y2; Bool dont_delete; int window_ext_x; int window_ext_y; float system_scale_x; float system_scale_y; wxCanvas *canvas; wxBitmap *selected_bitmap; char *filename; HDC cdc; HPEN cur_cpen ; HBRUSH cur_cbrush ; HDC cur_dc ; COLORREF cur_bk ; // Store all old GDI objects when do a SelectObject, // so we can select them back in (this unselecting user's // objects) so we can safely delete the DC. HBITMAP old_bitmap; HPEN old_pen; HBRUSH old_brush; HFONT old_font; HPALETTE old_palette; wxDC(void); ~wxDC(void); virtual void BeginDrawing(void) ; virtual void EndDrawing(void) ; void FloodFill(float x1, float y1, wxColour *col, int style=wxFLOOD_SURFACE) ; Bool GetPixel(float x1, float y1, wxColour *col) ; void DrawLine(float x1, float y1, float x2, float y2); void IntDrawLine(int x1, int y1, int x2, int y2); void CrossHair(int x, int y) ; void DrawArc(float x1,float y1,float x2,float y2,float xc,float yc); void DrawPoint(float x, float y); void DrawLines(int n, wxPoint points[], float xoffset = 0, float yoffset = 0); void DrawLines(int n, wxIntPoint points[], int xoffset = 0, int yoffset = 0); // MS C7 complains if this overloaded function isn't explicitly mentioned inline void DrawLines(wxList *list, float xoffset = 0, float yoffset = 0) { wxbDC::DrawLines(list, xoffset, yoffset); } void DrawPolygon(int n, wxPoint points[], float xoffset = 0, float yoffset = 0, int fillStyle=wxODDEVEN_RULE); // See MS C7 comment above inline void DrawPolygon(wxList *list, float xoffset = 0, float yoffset = 0, int fillStyle=wxODDEVEN_RULE) { wxbDC::DrawPolygon(list, xoffset, yoffset,fillStyle); } void DrawRectangle(float x, float y, float width, float height); void DrawRoundedRectangle(float x, float y, float width, float height, float radius = 20.0); void DrawEllipse(float x, float y, float width, float height); void DrawIcon(wxIcon *icon, float x, float y); void Clear(void); void SetFont(wxFont *font); void SetPen(wxPen *pen); void SetBrush(wxBrush *brush); void SetLogicalFunction(int function); void SetBackground(wxBrush *brush); void SetBackgroundMode(int mode); void SetClippingRegion(float x, float y, float width, float height); void SetColourMap(wxColourMap *cmap); void DestroyClippingRegion(void); void DrawText(const char *text, float x, float y); float GetCharHeight(void); float GetCharWidth(void); void GetTextExtent(const char *string, float *x, float *y, float *descent = NULL, float *externalLeading = NULL, wxFont *theFont = NULL); void GetSize(float *width, float *height); void GetSizeMM(float *width, float *height); Bool StartDoc(char *message); void EndDoc(void); void StartPage(void); void EndPage(void); void SetMapMode(int mode); void SetUserScale(float x, float y); void SetSystemScale(float x, float y); void SetLogicalOrigin(float x, float y); void SetDeviceOrigin(float x, float y); float DeviceToLogicalX(int x); float DeviceToLogicalY(int y); float DeviceToLogicalXRel(int x); float DeviceToLogicalYRel(int y); int LogicalToDeviceX(float x); int LogicalToDeviceY(float y); int LogicalToDeviceXRel(float x); int LogicalToDeviceYRel(float y); Bool Blit(float xdest, float ydest, float width, float height, wxCanvasDC *source, float xsrc, float ysrc, int rop = wxCOPY); Bool CanDrawBitmap(void); Bool CanGetTextExtent(void); void SetRop(HDC cdc); void DoClipping(HDC cdc); void SelectOldObjects(HDC dc); }; // This class specific to Windows 3.1 class wxPrinterDC: public wxDC { public: DECLARE_CLASS(wxPrinterDC) // Create a printer DC wxPrinterDC(char *driver, char *device, char *output, Bool interactive = TRUE); wxPrinterDC(HDC theDC); ~wxPrinterDC(void); }; // Gets an HDC for the default printer configuration HDC wxGetPrinterDC(void); // Logical to device // Absolute #define XLOG2DEV(x) (int)((x)) #define YLOG2DEV(y) (int)((y)) // Relative #define XLOG2DEVREL(x) (int)((x)) #define YLOG2DEVREL(y) (int)((y)) // Device to logical // Absolute #define XDEV2LOG(x) (int)((x)) #define YDEV2LOG(y) (int)((y)) // Relative #define XDEV2LOGREL(x) (int)((x)) #define YDEV2LOGREL(y) (int)((y)) /* * Have the same macros as for XView but not for every operation: * just for calculating window/viewport extent (a better way of scaling). */ // Logical to device // Absolute #define MS_XLOG2DEV(x) (int)(((x) - logical_origin_x)*logical_scale_x*user_scale_x*system_scale_x + device_origin_x) #define MS_YLOG2DEV(y) (int)(((y) - logical_origin_y)*logical_scale_y*user_scale_y*system_scale_y + device_origin_y) // Relative #define MS_XLOG2DEVREL(x) (int)((x)*logical_scale_x*user_scale_x*system_scale_x) #define MS_YLOG2DEVREL(y) (int)((y)*logical_scale_y*user_scale_y*system_scale_y) // Device to logical // Absolute // #define MS_XDEV2LOG(x) (int)(((x) - device_origin_x)/(logical_scale_x*user_scale_x*system_scale_x) + logical_origin_x) #define MS_XDEV2LOG(x) (((x) - device_origin_x)/(logical_scale_x*user_scale_x*system_scale_x) + logical_origin_x) //#define MS_YDEV2LOG(y) (int)(((y) - device_origin_y)/(logical_scale_y*user_scale_y*system_scale_y) + logical_origin_y) #define MS_YDEV2LOG(y) (((y) - device_origin_y)/(logical_scale_y*user_scale_y*system_scale_y) + logical_origin_y) // Relative //#define MS_XDEV2LOGREL(x) (int)((x)/(logical_scale_x*user_scale_x*system_scale_x)) #define MS_XDEV2LOGREL(x) ((x)/(logical_scale_x*user_scale_x*system_scale_x)) //#define MS_YDEV2LOGREL(y) (int)((y)/(logical_scale_y*user_scale_y*system_scale_y)) #define MS_YDEV2LOGREL(y) ((y)/(logical_scale_y*user_scale_y*system_scale_y)) #endif // IN_CPROTO #endif // wx_dc.h