171 lines
7.7 KiB
C++
171 lines
7.7 KiB
C++
//
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// Definition of classes Fl_Graphics_Driver, Fl_Surface_Device, Fl_Display_Device
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// for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 2010-2018 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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/**
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\file Fl_GDI_Graphics_Driver.H
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\brief Definition of Windows GDI graphics driver.
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*/
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#ifndef FL_GDI_GRAPHICS_DRIVER_H
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#define FL_GDI_GRAPHICS_DRIVER_H
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#include <FL/Fl_Graphics_Driver.H>
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#include <windows.h>
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/**
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\brief The Windows-specific graphics driver class.
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This class is implemented only on the Windows platform.
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*/
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class FL_EXPORT Fl_GDI_Graphics_Driver : public Fl_Scalable_Graphics_Driver {
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private:
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BOOL alpha_blend_(int x, int y, int w, int h, HDC src_gc, int srcx, int srcy, int srcw, int srch);
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int depth; // to support translation
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POINT *origins; // to support translation
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void set_current_();
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void draw_fixed(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
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void draw_fixed(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
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virtual void make_unused_color_(unsigned char &r, unsigned char &g, unsigned char &b);
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protected:
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void draw_fixed(Fl_RGB_Image *rgb, int XP, int YP, int WP, int HP, int cx, int cy);
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void cache(Fl_RGB_Image *rgb);
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HDC gc_;
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int numcount;
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int counts[20];
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uchar *mask_bitmap_;
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uchar **mask_bitmap() {return &mask_bitmap_;}
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int p_size;
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POINT *p;
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public:
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Fl_GDI_Graphics_Driver() {mask_bitmap_ = NULL; gc_ = NULL; p_size = 0; p = NULL; depth = -1; origins = NULL;}
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virtual ~Fl_GDI_Graphics_Driver() { if (p) free(p); delete[] origins;}
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virtual int has_feature(driver_feature mask) { return mask & NATIVE; }
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char can_do_alpha_blending();
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virtual void gc(void *ctxt) { gc_ = (HDC)ctxt; global_gc(); }
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virtual void *gc() {return gc_;}
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// --- bitmap stuff
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Fl_Bitmask create_bitmask(int w, int h, const uchar *array);
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void delete_bitmask(Fl_Bitmask bm);
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virtual void draw_unscaled(const char* str, int n, int x, int y);
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virtual void draw_unscaled(int angle, const char *str, int n, int x, int y);
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virtual void rtl_draw_unscaled(const char* str, int n, int x, int y);
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virtual void font_unscaled(Fl_Font face, Fl_Fontsize size);
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virtual void draw_rgb(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy);
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virtual void draw_image_unscaled(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0);
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virtual void draw_image_unscaled(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3);
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virtual void draw_image_mono_unscaled(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0);
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virtual void draw_image_mono_unscaled(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1);
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void cache(Fl_Pixmap *img);
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virtual void uncache_pixmap(fl_uintptr_t p);
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void cache(Fl_Bitmap *img);
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void uncache(Fl_RGB_Image *img, fl_uintptr_t &id_, fl_uintptr_t &mask_);
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virtual double width_unscaled(const char *str, int n);
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virtual double width_unscaled(unsigned int c);
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void text_extents_unscaled(const char*, int n, int& dx, int& dy, int& w, int& h);
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int height_unscaled();
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int descent_unscaled();
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Fl_Fontsize size_unscaled();
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#if ! defined(FL_DOXYGEN)
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void copy_offscreen_with_alpha(int x,int y,int w,int h,HBITMAP bitmap,int srcx,int srcy);
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#endif
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virtual void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
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void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h);
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Fl_Region XRectangleRegion(int x, int y, int w, int h);
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void XDestroyRegion(Fl_Region r);
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void translate_all(int x, int y);
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void untranslate_all(void);
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static HRGN scale_region(HRGN r, float f, Fl_GDI_Graphics_Driver *dr);
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virtual void scale(float f);
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float scale() {return Fl_Graphics_Driver::scale();}
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protected:
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void transformed_vertex0(float x, float y);
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void fixloop();
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// --- implementation is in src/fl_rect.cxx which includes src/cfg_gfx/gdi_rect.cxx
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virtual void point_unscaled(float x, float y);
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void rect_unscaled(float x, float y, float w, float h);
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void focus_rect(int x, int y, int w, int h);
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void rectf_unscaled(float x, float y, float w, float h);
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virtual void line_unscaled(float x, float y, float x1, float y1);
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virtual void line_unscaled(float x, float y, float x1, float y1, float x2, float y2);
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virtual void xyline_unscaled(float x, float y, float x1);
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virtual void yxline_unscaled(float x, float y, float y1);
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virtual void loop_unscaled(float x0, float y0, float x1, float y1, float x2, float y2);
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virtual void loop_unscaled(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3);
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virtual void polygon_unscaled(float x0, float y0, float x1, float y1, float x2, float y2);
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virtual void polygon_unscaled(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3);
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// --- clipping
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void push_clip(int x, int y, int w, int h);
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int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
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int not_clipped(int x, int y, int w, int h);
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void restore_clip();
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virtual Fl_Region scale_clip(float f);
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// --- implementation is in src/fl_vertex.cxx which includes src/cfg_gfx/xxx_rect.cxx
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void begin_complex_polygon();
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void end_points();
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void end_line();
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void end_loop();
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void end_polygon();
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void end_complex_polygon();
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void gap();
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virtual void ellipse_unscaled(double xt, double yt, double rx, double ry);
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// --- implementation is in src/fl_arc.cxx which includes src/cfg_gfx/xxx_arc.cxx if needed
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// using void Fl_Graphics_Driver::arc(double x, double y, double r, double start, double end);
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// --- implementation is in src/fl_arci.cxx which includes src/cfg_gfx/xxx_arci.cxx
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virtual void arc_unscaled(float x, float y, float w, float h, double a1, double a2);
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virtual void pie_unscaled(float x, float y, float w, float h, double a1, double a2);
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// --- implementation is in src/fl_line_style.cxx which includes src/cfg_gfx/xxx_line_style.cxx
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virtual void line_style_unscaled(int style, float width, char* dashes);
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// --- implementation is in src/fl_color.cxx which includes src/cfg_gfx/xxx_color.cxx
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void color(Fl_Color c);
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Fl_Color color() { return color_; }
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void color(uchar r, uchar g, uchar b);
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void set_color(Fl_Color i, unsigned int c);
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void free_color(Fl_Color i, int overlay);
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void set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win);
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virtual Fl_Font set_fonts(const char *name);
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virtual int get_font_sizes(Fl_Font fnum, int*& sizep);
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virtual const char* get_font_name(Fl_Font fnum, int* ap);
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virtual const char *font_name(int num);
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virtual void font_name(int num, const char *name);
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void global_gc();
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virtual void overlay_rect(int x, int y, int w , int h);
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};
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/**
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The graphics driver used when printing on Windows.
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This class is implemented only on the Windows platform.
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It is extremely similar to Fl_GDI_Graphics_Driver.
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*/
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class FL_EXPORT Fl_GDI_Printer_Graphics_Driver : public Fl_GDI_Graphics_Driver {
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private:
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typedef BOOL (WINAPI* transparent_f_type) (HDC,int,int,int,int,HDC,int,int,int,int,UINT);
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transparent_f_type TransparentBlt();
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public:
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virtual int has_feature(driver_feature mask) { return mask & (NATIVE | PRINTER); }
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void draw_pixmap(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
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void draw_bitmap(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy);
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void draw_rgb(Fl_RGB_Image *rgb, int XP, int YP, int WP, int HP, int cx, int cy);
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void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen bitmap, int srcx, int srcy);
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};
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#endif // FL_GDI_GRAPHICS_DRIVER_H
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