Since the Fl_Image class does not support image drawing by itself, calling the draw() method results in a box with an X in it being drawn instead. */ class FL_EXPORT Fl_Image { int w_, h_, d_, ld_, count_; const char * const *data_; // Forbid use of copy contructor and assign operator Fl_Image & operator=(const Fl_Image &); Fl_Image(const Fl_Image &); protected: /** The first form of the w() method returns the current image width in pixels.
The second form is a protected method that sets the current image width. */ void w(int W) {w_ = W;} /** The first form of the h() method returns the current image height in pixels.
The second form is a protected method that sets the current image height. */ void h(int H) {h_ = H;} /** The first form of the d() method returns the current image depth. The return value will be 0 for bitmaps, 1 for pixmaps, and 1 to 4 for color images.
The second form is a protected method that sets the current image depth. */ void d(int D) {d_ = D;} /** See int ld() */ void ld(int LD) {ld_ = LD;} /** See const char * const *data() */ void data(const char * const *p, int c) {data_ = p; count_ = c;} void draw_empty(int X, int Y); static void labeltype(const Fl_Label *lo, int lx, int ly, int lw, int lh, Fl_Align la); static void measure(const Fl_Label *lo, int &lw, int &lh); public: /** See void Fl_Image::w(int) */ int w() const {return w_;} /** See void Fl_Image::h(int) */ int h() const {return h_;} /** The first form of the d() method returns the current image depth. The return value will be 0 for bitmaps, 1 for pixmaps, and 1 to 4 for color images.
The second form is a protected method that sets the current image depth. */ int d() const {return d_;} /** The first form of the ld() method returns the current line data size in bytes. Line data is extra data that is included after each line of color image data and is normally not present.
The second form is a protected method that sets the current line data size in bytes. */ int ld() const {return ld_;} /** The count() method returns the number of data values associated with the image. The value will be 0 for images with no associated data, 1 for bitmap and color images, and greater than 2 for pixmap images. */ int count() const {return count_;} /** The first form of the data() method returns a pointer to the current image data array. Use the count() method to find the size of the data array.
The second form is a protected method that sets the current array pointer and count of pointers in the array. */ const char * const *data() const {return data_;} /** The constructor creates an empty image with the specified width, height, and depth. The width and height are in pixels. The depth is 0 for bitmaps, 1 for pixmap (colormap) images, and 1 to 4 for color images. */ Fl_Image(int W, int H, int D) {w_ = W; h_ = H; d_ = D; ld_ = 0; count_ = 0; data_ = 0;} virtual ~Fl_Image(); virtual Fl_Image *copy(int W, int H); /** The copy() method creates a copy of the specified image. If the width and height are provided, the image is resized to the specified size. The image should be deleted (or in the case of Fl_Shared_Image, released) when you are done with it. */ Fl_Image *copy() { return copy(w(), h()); } virtual void color_average(Fl_Color c, float i); /** The inactive() method calls color_average(FL_BACKGROUND_COLOR, 0.33f) to produce an image that appears grayed out. This method does not alter the original image data. */ void inactive() { color_average(FL_GRAY, .33f); } virtual void desaturate(); virtual void label(Fl_Widget*w); virtual void label(Fl_Menu_Item*m); /** The draw() methods draw the image. This form specifies a bounding box for the image, with the origin (upper-lefthand corner) of the image offset by the cx and cy arguments. */ virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0); // platform dependent /** The draw() methods draw the image. This form specifies the upper-lefthand corner of the image */ void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);} // platform dependent virtual void uncache(); }; /** The Fl_RGB_Image class supports caching and drawing of full-color images with 1 to 4 channels of color information. Images with an even number of channels are assumed to contain alpha information, which is used to blend the image with the contents of the screen.
Fl_RGB_Image is defined in <FL/Fl_Image.H>, however for compatibility reasons <FL/Fl_RGB_Image.H> should be included. */ class FL_EXPORT Fl_RGB_Image : public Fl_Image { friend class Fl_Quartz_Graphics_Driver; friend class Fl_GDI_Graphics_Driver; friend class Fl_Xlib_Graphics_Driver; public: const uchar *array; int alloc_array; // Non-zero if array was allocated private: #if defined(__APPLE__) || defined(WIN32) void *id_; // for internal use void *mask_; // for internal use (mask bitmap) #else unsigned id_; // for internal use unsigned mask_; // for internal use (mask bitmap) #endif // __APPLE__ || WIN32 public: /** The constructor creates a new image from the specified data. */ Fl_RGB_Image(const uchar *bits, int W, int H, int D=3, int LD=0) : Fl_Image(W,H,D), array(bits), alloc_array(0), id_(0), mask_(0) {data((const char **)&array, 1); ld(LD);} virtual ~Fl_RGB_Image(); virtual Fl_Image *copy(int W, int H); Fl_Image *copy() { return copy(w(), h()); } 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 // !Fl_Image_H // // End of "$Id: Fl_Image.H 7617 2010-05-27 17:20:18Z manolo $". //