231 lines
10 KiB
C++
231 lines
10 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 2010-2023 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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#include <stdlib.h>
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#include <config.h>
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#if USE_GDIPLUS
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# if defined(_MSC_VER)
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# include <objidl.h>
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# else
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# include <wtypes.h> // for PROPID needed with gcc 4.9.0 but not with 4.9.3
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# endif
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# include <gdiplus.h>
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#endif
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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_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_() FL_OVERRIDE;
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void draw_fixed(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy) FL_OVERRIDE;
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void draw_fixed(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy) FL_OVERRIDE;
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void make_unused_color_(unsigned char &r, unsigned char &g, unsigned char &b, int color_count, void **data) FL_OVERRIDE;
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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) FL_OVERRIDE;
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void cache(Fl_RGB_Image *rgb) FL_OVERRIDE;
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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() FL_OVERRIDE {return &mask_bitmap_;}
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POINT *long_point;
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int style_;
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public:
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Fl_GDI_Graphics_Driver();
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~Fl_GDI_Graphics_Driver() FL_OVERRIDE;
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int has_feature(driver_feature mask) FL_OVERRIDE { return mask & NATIVE; }
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char can_do_alpha_blending() FL_OVERRIDE;
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void gc(void *ctxt) FL_OVERRIDE { gc_ = (HDC)ctxt; global_gc(); }
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void *gc() FL_OVERRIDE {return gc_;}
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// --- bitmap stuff
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static HBITMAP create_bitmask(int w, int h, const uchar *array); // NOT virtual
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static HBITMAP calc_HBITMAP_mask(Fl_RGB_Image *mask);
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void delete_bitmask(fl_uintptr_t bm) FL_OVERRIDE;
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HBITMAP create_alphamask(int w, int h, int d, int ld, const uchar *array);
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void draw_unscaled(const char* str, int n, int x, int y) FL_OVERRIDE;
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void draw_unscaled(int angle, const char *str, int n, int x, int y) FL_OVERRIDE;
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void rtl_draw_unscaled(const char* str, int n, int x, int y) FL_OVERRIDE;
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void font_unscaled(Fl_Font face, Fl_Fontsize size) FL_OVERRIDE;
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void draw_rgb(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy) FL_OVERRIDE;
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void draw_image_unscaled(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0) FL_OVERRIDE;
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void draw_image_unscaled(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3) FL_OVERRIDE;
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void draw_image_mono_unscaled(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0) FL_OVERRIDE;
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void draw_image_mono_unscaled(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1) FL_OVERRIDE;
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void cache(Fl_Pixmap *img) FL_OVERRIDE;
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void uncache_pixmap(fl_uintptr_t p) FL_OVERRIDE;
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void cache(Fl_Bitmap *img) FL_OVERRIDE;
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void uncache(Fl_RGB_Image *img, fl_uintptr_t &id_, fl_uintptr_t &mask_) FL_OVERRIDE;
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double width_unscaled(const char *str, int n) FL_OVERRIDE;
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double width_unscaled(unsigned int c) FL_OVERRIDE;
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void text_extents_unscaled(const char*, int n, int& dx, int& dy, int& w, int& h) FL_OVERRIDE;
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int height_unscaled() FL_OVERRIDE;
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int descent_unscaled() FL_OVERRIDE;
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Fl_Fontsize size_unscaled() FL_OVERRIDE;
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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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void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy) FL_OVERRIDE;
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void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h) FL_OVERRIDE;
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Fl_Region XRectangleRegion(int x, int y, int w, int h) FL_OVERRIDE;
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void XDestroyRegion(Fl_Region r) FL_OVERRIDE;
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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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void scale(float f) FL_OVERRIDE;
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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) FL_OVERRIDE;
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void fixloop() FL_OVERRIDE;
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void point(int x, int y) FL_OVERRIDE;
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void focus_rect(int x, int y, int w, int h) FL_OVERRIDE;
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void rect_unscaled(int x, int y, int w, int h) FL_OVERRIDE;
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void rectf_unscaled(int x, int y, int w, int h) FL_OVERRIDE;
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#if USE_COLORMAP
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void colored_rectf(int x, int y, int w, int h, uchar r, uchar g, uchar b) FL_OVERRIDE;
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#endif
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void line_unscaled(int x, int y, int x1, int y1) FL_OVERRIDE;
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void line_unscaled(int x, int y, int x1, int y1, int x2, int y2) FL_OVERRIDE;
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void xyline_unscaled(int x, int y, int x1) FL_OVERRIDE;
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void yxline_unscaled(int x, int y, int y1) FL_OVERRIDE;
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void loop_unscaled(int x0, int y0, int x1, int y1, int x2, int y2) FL_OVERRIDE;
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void loop_unscaled(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) FL_OVERRIDE;
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void polygon_unscaled(int x0, int y0, int x1, int y1, int x2, int y2) FL_OVERRIDE;
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void polygon_unscaled(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) FL_OVERRIDE;
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// --- clipping
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void push_clip(int x, int y, int w, int h) FL_OVERRIDE;
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int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H) FL_OVERRIDE;
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int not_clipped(int x, int y, int w, int h) FL_OVERRIDE;
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void restore_clip() FL_OVERRIDE;
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Fl_Region scale_clip(float f) FL_OVERRIDE;
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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() FL_OVERRIDE;
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void end_points() FL_OVERRIDE;
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void end_line() FL_OVERRIDE;
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void end_loop() FL_OVERRIDE;
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void end_polygon() FL_OVERRIDE;
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void end_complex_polygon() FL_OVERRIDE;
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void gap() FL_OVERRIDE;
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void ellipse_unscaled(double xt, double yt, double rx, double ry) FL_OVERRIDE;
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void arc_unscaled(int x, int y, int w, int h, double a1, double a2) FL_OVERRIDE;
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void pie_unscaled(int x, int y, int w, int h, double a1, double a2) FL_OVERRIDE;
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void line_style_unscaled(int style, int width, char* dashes) FL_OVERRIDE;
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void color(Fl_Color c) FL_OVERRIDE;
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Fl_Color color() FL_OVERRIDE { return color_; }
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void color(uchar r, uchar g, uchar b) FL_OVERRIDE;
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void set_color(Fl_Color i, unsigned int c) FL_OVERRIDE;
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void free_color(Fl_Color i, int overlay) FL_OVERRIDE;
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Fl_Font set_fonts(const char *name) FL_OVERRIDE;
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int get_font_sizes(Fl_Font fnum, int*& sizep) FL_OVERRIDE;
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const char* get_font_name(Fl_Font fnum, int* ap) FL_OVERRIDE;
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const char *font_name(int num) FL_OVERRIDE;
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void font_name(int num, const char *name) FL_OVERRIDE;
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void global_gc() FL_OVERRIDE;
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void overlay_rect(int x, int y, int w , int h) FL_OVERRIDE;
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void cache_size(Fl_Image *img, int &width, int &height) FL_OVERRIDE;
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void* change_pen_width(int width) FL_OVERRIDE;
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void reset_pen_width(void *data) FL_OVERRIDE;
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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_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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int has_feature(driver_feature mask) FL_OVERRIDE { 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) FL_OVERRIDE;
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void draw_bitmap(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy) FL_OVERRIDE;
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void draw_rgb(Fl_RGB_Image *rgb, int XP, int YP, int WP, int HP, int cx, int cy) FL_OVERRIDE;
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void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen bitmap, int srcx, int srcy) FL_OVERRIDE;
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};
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#if USE_GDIPLUS
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class Fl_GDIplus_Graphics_Driver : public Fl_GDI_Graphics_Driver {
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friend class Fl_Graphics_Driver;
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private:
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Gdiplus::Color gdiplus_color_;
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Gdiplus::Pen *pen_;
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Gdiplus::SolidBrush *brush_;
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// The code below ensures that a connection to GDIplus is only made once, and that the
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// matching connection shutdown is also done exactly once.
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enum {
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STATE_CLOSED = 0, // no connection, token is invalid
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STATE_STARTUP, // attempt to start up, avoid recursions for whatever reason
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STATE_OPEN, // connection was successful and the token is valid
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STATE_SHUTDOWN // shutting down the gdi connection, avoid possible recursion
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};
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static int gdiplus_state_; // reflect the state of the GDIplus driver connection
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static ULONG_PTR gdiplus_token_; // the token that GDIplus gives to us
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public:
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Fl_GDIplus_Graphics_Driver();
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virtual ~Fl_GDIplus_Graphics_Driver();
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bool active;
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static void shutdown(void);
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void color(Fl_Color c) FL_OVERRIDE;
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Fl_Color color() FL_OVERRIDE { return color_; }
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void color(uchar r, uchar g, uchar b) FL_OVERRIDE;
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void line(int x, int y, int x1, int y1) FL_OVERRIDE;
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void line(int x, int y, int x1, int y1, int x2, int y2) FL_OVERRIDE;
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void loop(int x0, int y0, int x1, int y1, int x2, int y2) FL_OVERRIDE;
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void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) FL_OVERRIDE;
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void polygon(int x0, int y0, int x1, int y1, int x2, int y2) FL_OVERRIDE;
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void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) FL_OVERRIDE;
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void line_style(int style, int width, char* dashes) FL_OVERRIDE;
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void arc_unscaled(int x, int y, int w, int h, double a1, double a2) FL_OVERRIDE;
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void pie_unscaled(int x, int y, int w, int h, double a1, double a2) FL_OVERRIDE;
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void draw_circle(int x, int y, int d, Fl_Color c) FL_OVERRIDE;
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void transformed_vertex(double xf, double yf) FL_OVERRIDE;
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void vertex(double x,double y) FL_OVERRIDE;
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void end_points() FL_OVERRIDE;
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void end_line() FL_OVERRIDE;
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void end_loop() FL_OVERRIDE;
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void end_polygon() FL_OVERRIDE;
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void end_complex_polygon() FL_OVERRIDE;
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void circle(double x, double y, double r) FL_OVERRIDE;
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void antialias(int state) FL_OVERRIDE;
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int antialias() FL_OVERRIDE;
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};
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#endif // USE_GDIPLUS
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#endif // FL_GDI_GRAPHICS_DRIVER_H
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