FLTK 1.3.x

Fl_Image.H

00001 //
00002 // "$Id: Fl_Image.H 7903 2010-11-28 21:06:39Z matt $"
00003 //
00004 // Image header file for the Fast Light Tool Kit (FLTK).
00005 //
00006 // Copyright 1998-2010 by Bill Spitzak and others.
00007 //
00008 // This library is free software; you can redistribute it and/or
00009 // modify it under the terms of the GNU Library General Public
00010 // License as published by the Free Software Foundation; either
00011 // version 2 of the License, or (at your option) any later version.
00012 //
00013 // This library is distributed in the hope that it will be useful,
00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016 // Library General Public License for more details.
00017 //
00018 // You should have received a copy of the GNU Library General Public
00019 // License along with this library; if not, write to the Free Software
00020 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00021 // USA.
00022 //
00023 // Please report all bugs and problems on the following page:
00024 //
00025 //     http://www.fltk.org/str.php
00026 //
00027 
00028 /* \file
00029    Fl_Image, Fl_RGB_Image classes . */
00030 
00031 #ifndef Fl_Image_H
00032 #  define Fl_Image_H
00033 
00034 #  include "Enumerations.H"
00035 
00036 class Fl_Widget;
00037 struct Fl_Menu_Item;
00038 struct Fl_Label;
00039 
00051 class FL_EXPORT Fl_Image {
00052   int w_, h_, d_, ld_, count_;
00053   const char * const *data_;
00054 
00055   // Forbid use of copy contructor and assign operator
00056   Fl_Image & operator=(const Fl_Image &);
00057   Fl_Image(const Fl_Image &);
00058 
00059   protected:
00060 
00068   void w(int W) {w_ = W;}
00076   void h(int H) {h_ = H;}
00085   void d(int D) {d_ = D;}
00087   void ld(int LD) {ld_ = LD;}
00089   void data(const char * const *p, int c) {data_ = p; count_ = c;}
00090   void draw_empty(int X, int Y);
00091 
00092   static void labeltype(const Fl_Label *lo, int lx, int ly, int lw, int lh, Fl_Align la);
00093   static void measure(const Fl_Label *lo, int &lw, int &lh);
00094 
00095   public:
00096 
00098   int w() const {return w_;}
00100   int h() const {return h_;}
00109   int d() const {return d_;}
00118   int ld() const {return ld_;}
00125   int count() const {return count_;}
00134   const char * const *data() const {return data_;}
00135   
00142   Fl_Image(int W, int H, int D) {w_ = W; h_ = H; d_ = D; ld_ = 0; count_ = 0; data_ = 0;}
00143   virtual ~Fl_Image();
00144   virtual Fl_Image *copy(int W, int H);
00152   Fl_Image *copy() { return copy(w(), h()); }
00153   virtual void color_average(Fl_Color c, float i);
00160   void inactive() { color_average(FL_GRAY, .33f); }
00161   virtual void desaturate();
00162   virtual void label(Fl_Widget*w);
00163   virtual void label(Fl_Menu_Item*m);
00170   virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0); // platform dependent
00175   void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);} // platform dependent
00176   virtual void uncache();
00177 };
00178 
00190 class FL_EXPORT Fl_RGB_Image : public Fl_Image {
00191   friend class Fl_Quartz_Graphics_Driver;
00192   friend class Fl_GDI_Graphics_Driver;
00193   friend class Fl_Xlib_Graphics_Driver;
00194 public:
00195 
00196   const uchar *array;
00197   int alloc_array; // Non-zero if array was allocated
00198 
00199   private:
00200 
00201 #if defined(__APPLE__) || defined(WIN32)
00202   void *id_; // for internal use
00203   void *mask_; // for internal use (mask bitmap)
00204 #else
00205   unsigned id_; // for internal use
00206   unsigned mask_; // for internal use (mask bitmap)
00207 #endif // __APPLE__ || WIN32
00208 
00209   public:
00210 
00212   Fl_RGB_Image(const uchar *bits, int W, int H, int D=3, int LD=0) :
00213     Fl_Image(W,H,D), array(bits), alloc_array(0), id_(0), mask_(0) {data((const char **)&array, 1); ld(LD);}
00214   virtual ~Fl_RGB_Image();
00215   virtual Fl_Image *copy(int W, int H);
00216   Fl_Image *copy() { return copy(w(), h()); }
00217   virtual void color_average(Fl_Color c, float i);
00218   virtual void desaturate();
00219   virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0);
00220   void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);}
00221   virtual void label(Fl_Widget*w);
00222   virtual void label(Fl_Menu_Item*m);
00223   virtual void uncache();
00224 };
00225 
00226 #endif // !Fl_Image_H
00227 
00228 //
00229 // End of "$Id: Fl_Image.H 7903 2010-11-28 21:06:39Z matt $".
00230 //