mirror of https://github.com/fltk/fltk
503 lines
26 KiB
C++
503 lines
26 KiB
C++
//
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// Declaration of classes Fl_Graphics_Driver, Fl_Scalable_Graphics_Driver,
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// and Fl_Font_Descriptor for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 2010-2022 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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\cond DriverDev
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\addtogroup DriverDeveloper
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\{
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*/
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/** \file Fl_Graphics_Driver.H
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\brief Declaration of class Fl_Graphics_Driver.
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*/
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#ifndef FL_GRAPHICS_DRIVER_H
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#define FL_GRAPHICS_DRIVER_H
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#include <FL/Fl_Device.H>
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#include <FL/Fl_Image.H>
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#include <FL/Fl_Bitmap.H>
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#include <FL/Fl_Pixmap.H>
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#include <FL/Fl_RGB_Image.H>
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class Fl_Graphics_Driver;
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class Fl_Font_Descriptor;
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class Fl_Image_Surface;
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/** \brief Points to the driver that currently receives all graphics requests */
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FL_EXPORT extern Fl_Graphics_Driver *fl_graphics_driver;
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/**
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signature of image generation callback function.
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\param[in] data user data passed to function
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\param[in] x,y,w position and width of scan line in image
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\param[out] buf buffer for generated image data. You must copy \p w
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pixels from scanline \p y, starting at pixel \p x
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to this buffer.
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*/
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typedef void (*Fl_Draw_Image_Cb)(void* data,int x,int y,int w,uchar* buf);
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struct Fl_Fontdesc;
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typedef struct _PangoFontDescription PangoFontDescription;
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#define FL_REGION_STACK_SIZE 10
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#define FL_MATRIX_STACK_SIZE 32
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/**
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An abstract class subclassed for each graphics driver FLTK uses.
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Typically, FLTK applications do not use directly objects from this class. Rather, they perform
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drawing operations (e.g., fl_rectf()) that operate on the current drawing surface (see Fl_Surface_Device).
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Drawing operations are functionally presented in \ref drawing and as function lists
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in the \ref fl_drawings and \ref fl_attributes modules.
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<tt>Fl_Surface_Device::surface()->driver()</tt>
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gives at any time the graphics driver used by all drawing operations.
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For compatibility with older FLTK versions, the \ref fl_graphics_driver global variable gives the same result.
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Its value changes when
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drawing operations are directed to another drawing surface by Fl_Surface_Device::push_current() /
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Fl_Surface_Device::pop_current() / Fl_Surface_Device::set_current().
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The Fl_Graphics_Driver class is essential for developers of the FLTK library.
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Each platform supported by FLTK requires to create a derived class of Fl_Graphics_Driver that
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implements all its virtual member functions according to the platform.
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*/
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class FL_EXPORT Fl_Graphics_Driver {
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friend class Fl_Surface_Device;
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friend class Fl_Pixmap;
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friend class Fl_Bitmap;
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friend class Fl_RGB_Image;
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friend class Fl_SVG_Image;
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friend void fl_draw_image(const uchar* buf, int X,int Y,int W,int H, int D, int L);
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friend void fl_draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D, int L);
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friend void fl_draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D);
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friend void fl_draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D);
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friend void fl_copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
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friend int fl_convert_pixmap(const char*const* cdata, uchar* out, Fl_Color bg);
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friend FL_EXPORT void gl_start();
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/* ============== Implementation note about image drawing =========================
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A graphics driver can implement up to 6 virtual member functions to draw images:
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virtual void draw_pixmap(Fl_Pixmap *pxm,int XP, int YP, int WP, int HP, int cx, int cy)
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virtual void draw_bitmap(Fl_Bitmap *bm,int XP, int YP, int WP, int HP, int cx, int cy)
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virtual void draw_rgb(Fl_RGB_Image *rgb,int XP, int YP, int WP, int HP, int cx, int cy)
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and
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virtual void draw_fixed(Fl_Pixmap *pxm,int XP, int YP, int WP, int HP, int cx, int cy)
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virtual void draw_fixed(Fl_Bitmap *bm,int XP, int YP, int WP, int HP, int cx, int cy)
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virtual void draw_fixed(Fl_RGB_Image *rgb,int XP, int YP, int WP, int HP, int cx, int cy)
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- The 1st group of functions is used when the driver can directly map the image data,
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sized at data_w() x data_h(), to the image drawing area, sized at w()*scale x h()*scale
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where scale is the current GUI scale factor.
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- If the driver does not support such scale-and-draw operation for a given image type,
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it should implement the draw_fixed() function which is called by the library after the
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image has been internally resized to the drawing size and cached.
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- The platform-independent Fl_Graphics_Driver class implements the 1st group of functions.
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Each resizes the image, caches it, and calls the platform-specific implementation of
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draw_fixed(image-class *,....) with the cached image.
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- Consider an image object, say from class Fl_RGB_Image. Fl_RGB_Image::draw()
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calls the virtual member function draw_rgb(Fl_RGB_Image *,....). If Fl_XXX_Graphics_Driver
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re-implements this function, this code runs and is expected to draw the image
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adequately scaled to its drawing size. If Fl_XXX_Graphics_Driver does not re-implement
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this function, Fl_Graphics_Driver::draw_rgb(Fl_RGB_Image *,....) runs. It internally
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resizes the image, caches it, and calls Fl_XXX_Graphics_Driver::draw_fixed(Fl_RGB_Image *,....)
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that draws the image from its cached form which already has the adequate size.
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- Some drivers implement, for a given image class, only the function of the 1st group or
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only draw_fixed() as in these examples:
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- Fl_Quartz_Graphics_Driver implements only draw_rgb(Fl_RGB_Image *,....) because it
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can perform the scale-and-draw operation whatever the RGB image and the required scaling.
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- Fl_Xlib_Graphics_Driver implements only draw_fixed(Fl_Pixmap *,....). The library
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takes care of resizing and caching the Pixmap to the adequate drawing size.
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- Some drivers implement, for a given image class, the function of both groups, e.g. :
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Fl_GDI_Graphics_Driver implements both draw_rgb(Fl_RGB_Image *,....) and
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draw_fixed(Fl_RGB_Image *,....) because scale-and-draw may require function Alphablend()
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from MSIMG32.DLL. In the absence of that, the draw_rgb() implementation calls
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Fl_Graphics_Driver::draw_rgb() which runs Fl_GDI_Graphics_Driver::draw_fixed(Fl_RGB_Image*,...).
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Graphics drivers also implement cache(Fl_Pixmap*), cache(Fl_Bitmap*) and cache(Fl_RGB_Image*)
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to compute the cached form of all image types, and uncache(Fl_RGB_Image *,...),
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uncache_pixmap(fl_uintptr_t) and delete_bitmask(fl_uintptr_t) to destroy cached image forms.
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Graphics drivers that use the mask_ variable of class Fl_Pixmap to cache an Fl_Pixmap
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object also reimplement the uchar **Fl_Graphics_Driver::mask_bitmap() member function.
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*/
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private:
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virtual void draw_fixed(Fl_Pixmap *pxm,int XP, int YP, int WP, int HP, int cx, int cy);
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virtual void draw_fixed(Fl_Bitmap *bm,int XP, int YP, int WP, int HP, int cx, int cy);
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virtual void draw_fixed(Fl_RGB_Image *rgb,int XP, int YP, int WP, int HP, int cx, int cy);
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// the default implementation of make_unused_color_() is most probably enough
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virtual void make_unused_color_(unsigned char &r, unsigned char &g, unsigned char &b, int color_count, void **data);
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// some platforms may need to reimplement this
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virtual void set_current_();
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float scale_; // scale between FLTK and drawing coordinates: drawing = FLTK * scale_
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public:
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/** Creates the graphics driver that is used for core operations. */
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static Fl_Graphics_Driver *newMainGraphicsDriver();
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/** A 2D coordinate transformation matrix */
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struct matrix {double a, b, c, d, x, y;};
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/** Features that a derived class may possess. */
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typedef enum {
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NATIVE = 1, /**< native graphics driver for the platform */
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PRINTER = 2 /**< graphics driver for a printer drawing surface */
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} driver_feature;
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protected:
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int fl_clip_state_number; ///< For internal use by FLTK
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static const matrix m0; ///< For internal use by FLTK
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Fl_Font font_; ///< current font
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Fl_Fontsize size_; ///< current font size
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Fl_Color color_; ///< current color
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int sptr;///< For internal use by FLTK
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static const int matrix_stack_size = FL_MATRIX_STACK_SIZE; ///< For internal use by FLTK
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matrix stack[FL_MATRIX_STACK_SIZE]; ///< For internal use by FLTK
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matrix m; ///< current transformation matrix
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int n; ///< For internal use by FLTK
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int gap_; ///< For internal use by FLTK
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enum SHAPE {NONE=0, LINE, LOOP, POLYGON, POINTS, COMPLEX_POLYGON} what;
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int rstackptr; ///< For internal use by FLTK
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static const int region_stack_max = FL_REGION_STACK_SIZE - 1; ///< For internal use by FLTK
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Fl_Region rstack[FL_REGION_STACK_SIZE]; ///< For internal use by FLTK
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Fl_Font_Descriptor *font_descriptor_; ///< For internal use by FLTK
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int p_size;
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typedef struct { float x; float y; } XPOINT;
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XPOINT *xpoint;
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virtual void global_gc();
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virtual void cache(Fl_Pixmap *img);
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virtual void cache(Fl_Bitmap *img);
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virtual void cache(Fl_RGB_Image *img);
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virtual void uncache(Fl_RGB_Image *img, fl_uintptr_t &id_, fl_uintptr_t &mask_);
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// --- implementation is in src/drivers/xxx/Fl_xxx_Graphics_Driver_image.cxx
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virtual void draw_image(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_mono(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(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(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1);
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virtual void draw_rgb(Fl_RGB_Image * rgb,int XP, int YP, int WP, int HP, int cx, int cy);
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virtual void draw_pixmap(Fl_Pixmap * pxm,int XP, int YP, int WP, int HP, int cx, int cy);
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virtual void draw_bitmap(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy);
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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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/** For internal library use only */
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static void change_image_size(Fl_Image *img, int W, int H) {
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img->w(W);
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img->h(H);
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}
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// Support function for image drawing
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virtual void uncache_pixmap(fl_uintptr_t p);
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// accessor functions to protected image members
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int start_image(Fl_Image *img, int XP, int YP, int WP, int HP, int &cx, int &cy,
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int &X, int &Y, int &W, int &H);
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/** Accessor to a private member variable of Fl_RGB_Image */
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static fl_uintptr_t* id(Fl_RGB_Image *rgb) {return &(rgb->id_);}
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/** Accessor to a private member variable of Fl_Pixmap */
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static fl_uintptr_t* id(Fl_Pixmap *pm) {return &(pm->id_);}
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/** Accessor to a private member variable of Fl_Bitmap */
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static fl_uintptr_t* id(Fl_Bitmap *bm) {return &(bm->id_);}
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/** Accessor to a private member variable of Fl_RGB_Image */
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static fl_uintptr_t* mask(Fl_RGB_Image *rgb) {return &(rgb->mask_);}
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/** Accessor to a private member variable of Fl_Pixmap */
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static fl_uintptr_t* mask(Fl_Pixmap *pm) {return &(pm->mask_);}
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/** Accessor to private member variables of Fl_Pixmap */
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static void cache_w_h(Fl_Pixmap *pm, int*& pwidth, int*& pheight) {
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pwidth = &(pm->cache_w_);
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pheight = &(pm->cache_h_);
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}
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/** Accessor to private member variables of Fl_Bitmap */
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static void cache_w_h(Fl_Bitmap *bm, int*& pwidth, int*& pheight) {
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pwidth = &(bm->cache_w_);
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pheight = &(bm->cache_h_);
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}
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/** Accessor to private member variables of Fl_RGB_Image */
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static void cache_w_h(Fl_RGB_Image *rgb, int*& pwidth, int*& pheight) {
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pwidth = &(rgb->cache_w_);
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pheight = &(rgb->cache_h_);
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}
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static Fl_Offscreen get_offscreen_and_delete_image_surface(Fl_Image_Surface*);
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/** For internal library use only */
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static void draw_empty(Fl_Image* img, int X, int Y) {img->draw_empty(X, Y);}
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Fl_Graphics_Driver();
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virtual void cache_size(Fl_Image *img, int &width, int &height);
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void cache_size_finalize(Fl_Image *img, int &width, int &height);
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static unsigned need_pixmap_bg_color;
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public:
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virtual ~Fl_Graphics_Driver();
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static Fl_Graphics_Driver &default_driver();
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// support of "complex shapes"
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void push_matrix();
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void pop_matrix();
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void load_identity();
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void load_matrix(double a, double b, double c, double d, double x, double y);
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void mult_matrix(double a, double b, double c, double d, double x, double y);
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void rotate(double d);
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void translate(double x,double y);
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double transform_x(double x, double y);
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double transform_y(double x, double y);
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double transform_dx(double x, double y);
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double transform_dy(double x, double y);
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/** Return the current Fl_Font_Descriptor */
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inline Fl_Font_Descriptor *font_descriptor() { return font_descriptor_;}
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/** Set the current Fl_Font_Descriptor */
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inline void font_descriptor(Fl_Font_Descriptor *d) { font_descriptor_ = d;}
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/** Current scale factor between FLTK and drawing units: drawing = FLTK * scale() */
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float scale() { return scale_; }
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/** Sets the current value of the scaling factor */
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virtual void scale(float f);
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/** Return whether the graphics driver can do alpha blending */
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virtual char can_do_alpha_blending();
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virtual void point(int x, int y);
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virtual void rect(int x, int y, int w, int h);
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virtual void focus_rect(int x, int y, int w, int h);
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virtual void rectf(int x, int y, int w, int h);
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virtual void _rbox(int fill, int x, int y, int w, int h, int r);
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virtual void rounded_rect(int x, int y, int w, int h, int r);
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virtual void rounded_rectf(int x, int y, int w, int h, int r);
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// the default implementation is most likely enough
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virtual void colored_rectf(int x, int y, int w, int h, uchar r, uchar g, uchar b);
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virtual void line(int x, int y, int x1, int y1);
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/** see fl_line(int, int, int, int, int, int) */
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virtual void line(int x, int y, int x1, int y1, int x2, int y2);
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/** see fl_xyline(int, int, int) */
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virtual void xyline(int x, int y, int x1);
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/** see fl_xyline(int, int, int, int) */
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virtual void xyline(int x, int y, int x1, int y2);
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/** see fl_xyline(int, int, int, int, int) */
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virtual void xyline(int x, int y, int x1, int y2, int x3);
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/** see fl_yxline(int, int, int) */
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virtual void yxline(int x, int y, int y1);
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/** see fl_yxline(int, int, int, int) */
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virtual void yxline(int x, int y, int y1, int x2);
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/** see fl_yxline(int, int, int, int, int) */
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virtual void yxline(int x, int y, int y1, int x2, int y3);
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/** see fl_loop(int, int, int, int, int, int) */
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virtual void loop(int x0, int y0, int x1, int y1, int x2, int y2);
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/** see fl_loop(int, int, int, int, int, int, int, int) */
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virtual void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
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virtual void polygon(int x0, int y0, int x1, int y1, int x2, int y2);
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/** see fl_polygon(int, int, int, int, int, int, int, int) */
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virtual void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
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// --- clipping
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virtual void push_clip(int x, int y, int w, int h);
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virtual int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
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virtual int not_clipped(int x, int y, int w, int h);
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/** see fl_push_no_clip() */
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virtual void push_no_clip(); // has default implementation
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/** see fl_pop_clip() */
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virtual void pop_clip(); // has default implementation
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virtual Fl_Region clip_region(); // has default implementation
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virtual void clip_region(Fl_Region r); // has default implementation
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virtual void restore_clip();
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virtual void begin_points();
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virtual void begin_line();
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virtual void begin_loop();
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virtual void begin_polygon();
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virtual void begin_complex_polygon();
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virtual void transformed_vertex(double xf, double yf);
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virtual void transformed_vertex0(float x, float y);
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virtual void vertex(double x, double y);
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virtual void end_points();
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virtual void end_line();
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virtual void end_loop();
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virtual void fixloop();
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virtual void end_polygon();
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virtual void end_complex_polygon();
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// default implementation is most probably enough
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virtual bool can_fill_non_convex_polygon() { return true; }
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virtual void gap();
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virtual void circle(double x, double y, double r);
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virtual void arc(double x, double y, double r, double start, double end);
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virtual void arc(int x, int y, int w, int h, double a1, double a2);
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virtual void pie(int x, int y, int w, int h, double a1, double a2);
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virtual void curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3);
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virtual void line_style(int style, int width=0, char* dashes=0);
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virtual void color(Fl_Color c);
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virtual void set_color(Fl_Color i, unsigned int c);
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virtual void free_color(Fl_Color i, int overlay);
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virtual Fl_Color color();
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virtual void color(uchar r, uchar g, uchar b);
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virtual void draw(const char *str, int nChars, int x, int y);
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virtual void draw(const char *str, int nChars, float x, float y);
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virtual void draw(int angle, const char *str, int nChars, int x, int y);
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virtual void rtl_draw(const char *str, int nChars, int x, int y);
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virtual int has_feature(driver_feature feature);
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virtual void font(Fl_Font face, Fl_Fontsize fsize);
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virtual Fl_Font font();
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virtual Fl_Fontsize size();
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virtual double width(const char *str, int nChars);
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virtual double width(unsigned int c);
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virtual void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h);
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virtual int height();
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virtual int descent();
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virtual void gc(void*);
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virtual void *gc(void);
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virtual uchar **mask_bitmap();
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// default implementation may be enough
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virtual float scale_font_for_PostScript(Fl_Font_Descriptor *desc, int s);
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// default implementation may be enough
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virtual float scale_bitmap_for_PostScript();
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// each platform implements these 3 functions its own way
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virtual void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h);
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virtual Fl_Region XRectangleRegion(int x, int y, int w, int h);
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virtual void XDestroyRegion(Fl_Region r);
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virtual const char* get_font_name(Fl_Font fnum, int* ap);
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virtual int get_font_sizes(Fl_Font fnum, int*& sizep);
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virtual Fl_Font set_fonts(const char *name);
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virtual Fl_Fontdesc* calc_fl_fonts(void);
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virtual unsigned font_desc_size();
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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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// Defaut implementation may be enough
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virtual void overlay_rect(int x, int y, int w , int h);
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virtual float override_scale();
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virtual void restore_scale(float);
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virtual PangoFontDescription* pango_font_description() { return NULL; }
|
|
virtual void antialias(int state);
|
|
virtual int antialias();
|
|
virtual void delete_bitmask(fl_uintptr_t bm);
|
|
};
|
|
|
|
#ifndef FL_DOXYGEN
|
|
|
|
/* This class is not part of FLTK's public API.
|
|
Platforms usually define a derived class called Fl_XXX_Font_Descriptor
|
|
containing extra platform-specific data/functions.
|
|
This is a class for an actual system font, with junk to
|
|
help choose it and info on character sizes. Each Fl_Fontdesc has a
|
|
linked list of these. These are created the first time each system
|
|
font/size combination is used.
|
|
*/
|
|
class Fl_Font_Descriptor {
|
|
public:
|
|
/** linked list for this Fl_Fontdesc */
|
|
Fl_Font_Descriptor *next;
|
|
Fl_Fontsize size; /**< font size */
|
|
Fl_Font_Descriptor(const char* fontname, Fl_Fontsize size);
|
|
virtual FL_EXPORT ~Fl_Font_Descriptor() {}
|
|
short ascent, descent;
|
|
unsigned int listbase;// base of display list, 0 = none
|
|
};
|
|
|
|
// This struct is not part of FLTK's public API.
|
|
struct Fl_Fontdesc {
|
|
const char *name;
|
|
char fontname[128]; // "Pretty" font name
|
|
Fl_Font_Descriptor *first; // linked list of sizes of this style
|
|
};
|
|
|
|
/* Abstract class Fl_Scalable_Graphics_Driver is platform-independent.
|
|
It supports the scaling of all graphics coordinates by a
|
|
float factor helpful to support HiDPI displays.
|
|
This class does :
|
|
- compute scaled coordinates
|
|
- scale the cached offscreen of image objects
|
|
- scale the pixel arrays used when performing direct image draws
|
|
- call the member functions of a platform-specific,
|
|
Fl_Scalable_Graphics_Driver-derived class that do the drawings with adequately
|
|
scaled coordinates. The member functions are named with the _unscaled suffix.
|
|
- scale and unscale the clipping region.
|
|
|
|
This class is presently used by the X11 and Windows platforms to support HiDPI displays.
|
|
In the future, it may also be used by other platforms.
|
|
*/
|
|
class FL_EXPORT Fl_Scalable_Graphics_Driver : public Fl_Graphics_Driver {
|
|
public:
|
|
Fl_Scalable_Graphics_Driver();
|
|
// This function aims to compute accurately int(x * s) in
|
|
// presence of rounding errors existing with floating point numbers
|
|
// and that sometimes differ between 32 and 64 bits.
|
|
static inline int floor(int x, float s) { return int(x * s + 0.001f); }
|
|
inline int floor(int x) { return Fl_Scalable_Graphics_Driver::floor(x, scale()); }
|
|
protected:
|
|
int line_width_;
|
|
virtual Fl_Region scale_clip(float f);
|
|
void unscale_clip(Fl_Region r);
|
|
void point(int x, int y) FL_OVERRIDE;
|
|
virtual void point_unscaled(float x, float y);
|
|
void rect(int x, int y, int w, int h) FL_OVERRIDE;
|
|
void rectf(int x, int y, int w, int h) FL_OVERRIDE;
|
|
virtual void rectf_unscaled(int x, int y, int w, int h);
|
|
void line(int x, int y, int x1, int y1) FL_OVERRIDE;
|
|
virtual void line_unscaled(int x, int y, int x1, int y1);
|
|
void line(int x, int y, int x1, int y1, int x2, int y2) FL_OVERRIDE;
|
|
virtual void line_unscaled(int x, int y, int x1, int y1, int x2, int y2);
|
|
void xyline(int x, int y, int x1) FL_OVERRIDE;
|
|
virtual void xyline_unscaled(int x, int y, int x1);
|
|
void xyline(int x, int y, int x1, int y2) FL_OVERRIDE {Fl_Graphics_Driver::xyline(x, y, x1, y2);}
|
|
void xyline(int x, int y, int x1, int y2, int x3) FL_OVERRIDE {Fl_Graphics_Driver::xyline(x, y, x1, y2, x3);}
|
|
void yxline(int x, int y, int y1) FL_OVERRIDE;
|
|
virtual void yxline_unscaled(int x, int y, int y1);
|
|
void yxline(int x, int y, int y1, int x2) FL_OVERRIDE {Fl_Graphics_Driver::yxline(x, y, y1, x2);}
|
|
void yxline(int x, int y, int y1, int x2, int y3) FL_OVERRIDE {Fl_Graphics_Driver::yxline(x, y, y1, x2, y3);}
|
|
void loop(int x0, int y0, int x1, int y1, int x2, int y2) FL_OVERRIDE;
|
|
virtual void loop_unscaled(int x0, int y0, int x1, int y1, int x2, int y2);
|
|
void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) FL_OVERRIDE;
|
|
virtual void loop_unscaled(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
|
|
void polygon(int x0, int y0, int x1, int y1, int x2, int y2) FL_OVERRIDE;
|
|
virtual void polygon_unscaled(int x0, int y0, int x1, int y1, int x2, int y2);
|
|
void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) FL_OVERRIDE;
|
|
virtual void polygon_unscaled(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
|
|
void circle(double x, double y, double r) FL_OVERRIDE;
|
|
virtual void ellipse_unscaled(double xt, double yt, double rx, double ry);
|
|
void font(Fl_Font face, Fl_Fontsize size) FL_OVERRIDE;
|
|
Fl_Font font() FL_OVERRIDE;
|
|
virtual void font_unscaled(Fl_Font face, Fl_Fontsize size);
|
|
double width(const char *str, int n) FL_OVERRIDE;
|
|
double width(unsigned int c) FL_OVERRIDE;
|
|
virtual double width_unscaled(const char *str, int n);
|
|
virtual double width_unscaled(unsigned int c);
|
|
Fl_Fontsize size() FL_OVERRIDE;
|
|
virtual Fl_Fontsize size_unscaled();
|
|
void text_extents(const char *str, int n, int &dx, int &dy, int &w, int &h) FL_OVERRIDE;
|
|
virtual void text_extents_unscaled(const char *str, int n, int &dx, int &dy, int &w, int &h);
|
|
int height() FL_OVERRIDE;
|
|
int descent() FL_OVERRIDE;
|
|
virtual int height_unscaled();
|
|
virtual int descent_unscaled();
|
|
void draw(const char *str, int n, int x, int y) FL_OVERRIDE;
|
|
virtual void draw_unscaled(const char *str, int n, int x, int y);
|
|
void draw(int angle, const char *str, int n, int x, int y) FL_OVERRIDE;
|
|
virtual void draw_unscaled(int angle, const char *str, int n, int x, int y);
|
|
void draw(const char *str, int nChars, float x, float y) FL_OVERRIDE;
|
|
void rtl_draw(const char* str, int n, int x, int y) FL_OVERRIDE;
|
|
virtual void rtl_draw_unscaled(const char* str, int n, int x, int y);
|
|
void arc(double x, double y, double r, double start, double end) FL_OVERRIDE;
|
|
void arc(int x, int y, int w, int h, double a1, double a2) FL_OVERRIDE;
|
|
virtual void arc_unscaled(int x, int y, int w, int h, double a1, double a2);
|
|
void pie(int x, int y, int w, int h, double a1, double a2) FL_OVERRIDE;
|
|
virtual void pie_unscaled(int x, int y, int w, int h, double a1, double a2);
|
|
void line_style(int style, int width=0, char* dashes=0) FL_OVERRIDE;
|
|
virtual void line_style_unscaled(int style, int width, char* dashes);
|
|
void draw_image_rescale(void *buf, Fl_Draw_Image_Cb cb, int X, int Y, int W, int H, int D, int L, bool mono);
|
|
virtual void draw_image_unscaled(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0);
|
|
virtual void draw_image_unscaled(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3);
|
|
void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0) FL_OVERRIDE;
|
|
void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3) FL_OVERRIDE;
|
|
virtual void draw_image_mono_unscaled(const uchar* buf, int x, int y, int w, int h, int d, int l);
|
|
void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0) FL_OVERRIDE;
|
|
virtual void draw_image_mono_unscaled(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1);
|
|
void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1) FL_OVERRIDE;
|
|
|
|
void transformed_vertex(double xf, double yf) FL_OVERRIDE;
|
|
void vertex(double x, double y) FL_OVERRIDE;
|
|
float override_scale() FL_OVERRIDE;
|
|
void restore_scale(float) FL_OVERRIDE;
|
|
virtual void *change_pen_width(int lwidth);
|
|
virtual void reset_pen_width(void *data);
|
|
};
|
|
#endif // FL_DOXYGEN
|
|
|
|
#endif // FL_GRAPHICS_DRIVER_H
|
|
|
|
/**
|
|
\}
|
|
\endcond
|
|
*/
|