fltk/FL/Fl_Pixmap.H

78 lines
2.5 KiB
C++

//
// Pixmap header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2017 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
/* \file
Fl_Pixmap widget . */
#ifndef Fl_Pixmap_H
#define Fl_Pixmap_H
# include "Fl_Image.H"
class Fl_Widget;
struct Fl_Menu_Item;
// Older C++ compilers don't support the explicit keyword... :(
# if defined(__sgi) && !defined(_COMPILER_VERSION)
# define explicit
# endif // __sgi && !_COMPILER_VERSION
/**
The Fl_Pixmap class supports caching and drawing of colormap
(pixmap) images, including transparency.
*/
class FL_EXPORT Fl_Pixmap : public Fl_Image {
friend class Fl_Graphics_Driver;
void copy_data();
void delete_data();
void set_data(const char * const *p);
protected:
void measure();
public:
int alloc_data; // Non-zero if data was allocated
private:
// for internal use
fl_uintptr_t id_;
fl_uintptr_t mask_;
int cache_w_, cache_h_; // size of pixmap when cached
public:
/** The constructors create a new pixmap from the specified XPM data. */
explicit Fl_Pixmap(char * const * D) : Fl_Image(-1,0,1), alloc_data(0), id_(0), mask_(0) {set_data((const char*const*)D); measure();}
/** The constructors create a new pixmap from the specified XPM data. */
explicit Fl_Pixmap(uchar* const * D) : Fl_Image(-1,0,1), alloc_data(0), id_(0), mask_(0) {set_data((const char*const*)D); measure();}
/** The constructors create a new pixmap from the specified XPM data. */
explicit Fl_Pixmap(const char * const * D) : Fl_Image(-1,0,1), alloc_data(0), id_(0), mask_(0) {set_data((const char*const*)D); measure();}
/** The constructors create a new pixmap from the specified XPM data. */
explicit Fl_Pixmap(const uchar* const * D) : Fl_Image(-1,0,1), alloc_data(0), id_(0), mask_(0) {set_data((const char*const*)D); measure();}
virtual ~Fl_Pixmap();
virtual Fl_Image *copy(int W, int H);
Fl_Image *copy() { return Fl_Image::copy(); }
virtual void color_average(Fl_Color c, float i);
virtual void desaturate();
virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0);
void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);}
virtual void label(Fl_Widget*w);
virtual void label(Fl_Menu_Item*m);
virtual void uncache();
};
#endif