FLTK 1.3.3
Fl_Image.H
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1 //
2 // "$Id: Fl_Image.H 10379 2014-10-14 13:32:59Z AlbrechtS $"
3 //
4 // Image header file for the Fast Light Tool Kit (FLTK).
5 //
6 // Copyright 1998-2014 by Bill Spitzak and others.
7 //
8 // This library is free software. Distribution and use rights are outlined in
9 // the file "COPYING" which should have been included with this file. If this
10 // file is missing or damaged, see the license at:
11 //
12 // http://www.fltk.org/COPYING.php
13 //
14 // Please report all bugs and problems on the following page:
15 //
16 // http://www.fltk.org/str.php
17 //
18 
22 #ifndef Fl_Image_H
23 # define Fl_Image_H
24 
25 # include "Enumerations.H"
26 #include <stdlib.h>
27 
28 class Fl_Widget;
29 class Fl_Pixmap;
30 struct Fl_Menu_Item;
31 struct Fl_Label;
32 
39 };
40 
52 class FL_EXPORT Fl_Image {
53  int w_, h_, d_, ld_, count_;
54  const char * const *data_;
55  static Fl_RGB_Scaling RGB_scaling_;
56 
57  // Forbid use of copy constructor and assign operator
58  Fl_Image & operator=(const Fl_Image &);
59  Fl_Image(const Fl_Image &);
60 
61  protected:
62 
66  void w(int W) {w_ = W;}
70  void h(int H) {h_ = H;}
74  void d(int D) {d_ = D;}
78  void ld(int LD) {ld_ = LD;}
82  void data(const char * const *p, int c) {data_ = p; count_ = c;}
83  void draw_empty(int X, int Y);
84 
85  static void labeltype(const Fl_Label *lo, int lx, int ly, int lw, int lh, Fl_Align la);
86  static void measure(const Fl_Label *lo, int &lw, int &lh);
87 
88  public:
89 
93  int w() const {return w_;}
96  int h() const {return h_;}
102  int d() const {return d_;}
108  int ld() const {return ld_;}
115  int count() const {return count_;}
120  const char * const *data() const {return data_;}
121 
128  Fl_Image(int W, int H, int D) {w_ = W; h_ = H; d_ = D; ld_ = 0; count_ = 0; data_ = 0;}
129  virtual ~Fl_Image();
130  virtual Fl_Image *copy(int W, int H);
138  Fl_Image *copy() { return copy(w(), h()); }
139  virtual void color_average(Fl_Color c, float i);
146  void inactive() { color_average(FL_GRAY, .33f); }
147  virtual void desaturate();
148  virtual void label(Fl_Widget*w);
149  virtual void label(Fl_Menu_Item*m);
157  virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0); // platform dependent
162  void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);} // platform dependent
163  virtual void uncache();
164 
165  // set RGB image scaling method
166  static void RGB_scaling(Fl_RGB_Scaling);
167 
168  // get RGB image scaling method
169  static Fl_RGB_Scaling RGB_scaling();
170 };
171 
183 class FL_EXPORT Fl_RGB_Image : public Fl_Image {
184  friend class Fl_Quartz_Graphics_Driver;
185  friend class Fl_GDI_Graphics_Driver;
186  friend class Fl_Xlib_Graphics_Driver;
187  static size_t max_size_;
188 public:
189 
190  const uchar *array;
191  int alloc_array; // Non-zero if array was allocated
192 
193  private:
194 
195 #if defined(__APPLE__) || defined(WIN32)
196  void *id_; // for internal use
197  void *mask_; // for internal use (mask bitmap)
198 #else
199  unsigned id_; // for internal use
200  unsigned mask_; // for internal use (mask bitmap)
201 #endif // __APPLE__ || WIN32
202 
203  public:
204 
220  Fl_RGB_Image(const uchar *bits, int W, int H, int D=3, int LD=0) :
221  Fl_Image(W,H,D), array(bits), alloc_array(0), id_(0), mask_(0) {data((const char **)&array, 1); ld(LD);}
222  Fl_RGB_Image(const Fl_Pixmap *pxm, Fl_Color bg=FL_GRAY);
223  virtual ~Fl_RGB_Image();
224  virtual Fl_Image *copy(int W, int H);
225  Fl_Image *copy() { return copy(w(), h()); }
226  virtual void color_average(Fl_Color c, float i);
227  virtual void desaturate();
228  virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0);
229  void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);}
230  virtual void label(Fl_Widget*w);
231  virtual void label(Fl_Menu_Item*m);
232  virtual void uncache();
242  static void max_size(size_t size) { max_size_ = size;}
247  static size_t max_size() {return max_size_;}
248 };
249 
250 #endif // !Fl_Image_H
251 
252 //
253 // End of "$Id: Fl_Image.H 10379 2014-10-14 13:32:59Z AlbrechtS $".
254 //