FLTK 1.3.0
Fl_Image.H
1 //
2 // "$Id: Fl_Image.H 8338 2011-01-30 09:24:40Z manolo $"
3 //
4 // Image header file for the Fast Light Tool Kit (FLTK).
5 //
6 // Copyright 1998-2011 by Bill Spitzak and others.
7 //
8 // This library is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU Library General Public
10 // License as published by the Free Software Foundation; either
11 // version 2 of the License, or (at your option) any later version.
12 //
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // Library General Public License for more details.
17 //
18 // You should have received a copy of the GNU Library General Public
19 // License along with this library; if not, write to the Free Software
20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
21 // USA.
22 //
23 // Please report all bugs and problems on the following page:
24 //
25 // http://www.fltk.org/str.php
26 //
27 
28 /* \file
29  Fl_Image, Fl_RGB_Image classes . */
30 
31 #ifndef Fl_Image_H
32 # define Fl_Image_H
33 
34 # include "Enumerations.H"
35 
36 class Fl_Widget;
37 struct Fl_Menu_Item;
38 struct Fl_Label;
39 
51 class FL_EXPORT Fl_Image {
52  int w_, h_, d_, ld_, count_;
53  const char * const *data_;
54 
55  // Forbid use of copy contructor and assign operator
56  Fl_Image & operator=(const Fl_Image &);
57  Fl_Image(const Fl_Image &);
58 
59  protected:
60 
64  void w(int W) {w_ = W;}
68  void h(int H) {h_ = H;}
72  void d(int D) {d_ = D;}
76  void ld(int LD) {ld_ = LD;}
80  void data(const char * const *p, int c) {data_ = p; count_ = c;}
81  void draw_empty(int X, int Y);
82 
83  static void labeltype(const Fl_Label *lo, int lx, int ly, int lw, int lh, Fl_Align la);
84  static void measure(const Fl_Label *lo, int &lw, int &lh);
85 
86  public:
87 
91  int w() const {return w_;}
94  int h() const {return h_;}
100  int d() const {return d_;}
106  int ld() const {return ld_;}
113  int count() const {return count_;}
118  const char * const *data() const {return data_;}
119 
126  Fl_Image(int W, int H, int D) {w_ = W; h_ = H; d_ = D; ld_ = 0; count_ = 0; data_ = 0;}
127  virtual ~Fl_Image();
128  virtual Fl_Image *copy(int W, int H);
136  Fl_Image *copy() { return copy(w(), h()); }
137  virtual void color_average(Fl_Color c, float i);
144  void inactive() { color_average(FL_GRAY, .33f); }
145  virtual void desaturate();
146  virtual void label(Fl_Widget*w);
147  virtual void label(Fl_Menu_Item*m);
155  virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0); // platform dependent
160  void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);} // platform dependent
161  virtual void uncache();
162 };
163 
175 class FL_EXPORT Fl_RGB_Image : public Fl_Image {
176  friend class Fl_Quartz_Graphics_Driver;
177  friend class Fl_GDI_Graphics_Driver;
178  friend class Fl_Xlib_Graphics_Driver;
179 public:
180 
181  const uchar *array;
182  int alloc_array; // Non-zero if array was allocated
183 
184  private:
185 
186 #if defined(__APPLE__) || defined(WIN32)
187  void *id_; // for internal use
188  void *mask_; // for internal use (mask bitmap)
189 #else
190  unsigned id_; // for internal use
191  unsigned mask_; // for internal use (mask bitmap)
192 #endif // __APPLE__ || WIN32
193 
194  public:
195 
197  Fl_RGB_Image(const uchar *bits, int W, int H, int D=3, int LD=0) :
198  Fl_Image(W,H,D), array(bits), alloc_array(0), id_(0), mask_(0) {data((const char **)&array, 1); ld(LD);}
199  virtual ~Fl_RGB_Image();
200  virtual Fl_Image *copy(int W, int H);
201  Fl_Image *copy() { return copy(w(), h()); }
202  virtual void color_average(Fl_Color c, float i);
203  virtual void desaturate();
204  virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0);
205  void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);}
206  virtual void label(Fl_Widget*w);
207  virtual void label(Fl_Menu_Item*m);
208  virtual void uncache();
209 };
210 
211 #endif // !Fl_Image_H
212 
213 //
214 // End of "$Id: Fl_Image.H 8338 2011-01-30 09:24:40Z manolo $".
215 //