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[STR New] Link: http://www.fltk.org/str.php?L2331 Version: 2.0-current Attached is a simple image viewer for SharedImage. The test files are the files in test/images/: coucou.gif coucou.png coucou.xpm testimg.jpg ulon.bmp JPG image: normal draw(). XPM image: excessive draw(). PNG image: excessive draw(). BMP image: normal draw(). GIF image: excessive draw(). Some other PNG images (mostly without transparency) behave normal. But when I move the mouse within the window or within the file_chooser, the image is redrawn. The same happens with ulon.bmp : moving the mouse within the file_chooser triggers a draw(). Current version:fltk-2.0.x-r6970 Re-Installing fltk-2.0.x-r6671: same behaviour. I have converted the viewer to fltk-1.3. No excessive draw(). No draw() during mouse move. winfried =================== FLTK 20 =================== #include <stdlib.h> #include <stdio.h> #include <string.h> #include <fltk/run.h> #include <fltk/draw.h> #include <fltk/filename.h> #include <fltk/Widget.h> #include <fltk/Window.h> #include <fltk/Button.h> #include <fltk/SharedImage.h> #include <fltk/file_chooser.h> #include <fltk/ask.h> #define HEADER_H 45 #define WINMIN_W 210 using namespace fltk; static Window *main_win; static SharedImage *sim; class Canvas: public Widget { void draw(); public: Canvas(int x,int y,int w,int h) : Widget(x,y,w,h) { } }; static Canvas *canvas; static int draw_count; void Canvas::draw() { printf("DRAW %d\n",++draw_count); if(sim) { int ww, iw, ih; sim->measure(iw, ih); if((ww = iw) < WINMIN_W) ww = WINMIN_W; main_win->resize(ww, HEADER_H + ih); resize(iw, ih); sim->draw(0, 0); return; } } void get_image(const char *name) { sim = SharedImage::get(name); if(sim == NULL) { alert("No SharedImage possible for\n%s",name); return; } canvas->redraw(); } static char name[1024]; static void file_cb(const char *n) { if( !filename_exist(n)) return; if(filename_isdir(n)) return; strcpy(name, n); main_win->label(filename_name(name)); get_image(name); } static void cancel_cb(Widget *, void *) { exit(0); } static void load_cb(Widget *,void *) { file_chooser_callback(file_cb); file_chooser("Image File","*.{xpm,png,jpg,gif,bmp}", "."); file_chooser_callback(NULL); } int main(int argc, char **argv) { register_images(); main_win = new Window(400,HEADER_H+400); main_win->label("Pixmap Browser"); main_win->begin(); { Button *b = new Button(5,5,100,35,"Load"); b->callback(load_cb); } { Button *b = new Button(105,5,100,35,"Cancel"); b->callback(cancel_cb); } canvas = new Canvas(0,HEADER_H,400,400); main_win->end(); main_win->resizable(canvas); main_win->show(); if (argv[1]) file_cb(argv[1]); return run(); } =================== FLTK 13 =================== #include <stdlib.h> #include <stdio.h> #include <string.h> #include <FL/Fl.H> #include <FL/fl_draw.H> #include <FL/filename.H> #include <FL/Fl_Widget.H> #include <FL/Fl_Window.H> #include <FL/Fl_Button.H> #include <FL/Fl_Shared_Image.H> #include <FL/Fl_File_Chooser.H> #include <FL/fl_ask.H> #define HEADER_H 45 #define WINMIN_W 210 static Fl_Window *main_win; static Fl_Shared_Image *sim; class Canvas: public Fl_Widget { void draw(); public: Canvas(int x,int y,int w,int h) : Fl_Widget(x,y,w,h) { } }; static Canvas *canvas; static int draw_count; void Canvas::draw() { printf("DRAW(%p) %d\n",(void*)sim,++draw_count); if(sim) { int ww, iw, ih; iw = sim->w(); ih = sim->h(); if((ww = iw) < WINMIN_W) ww = WINMIN_W; main_win->resize(main_win->x(), main_win->y(), ww, HEADER_H + ih); resize(x(), y(),iw, ih); sim->draw(x(), y()); return; } } void get_image(const char *name) { sim = Fl_Shared_Image::get(name); if(sim == NULL) { fl_alert("No SharedImage possible for\n%s",name); return; } canvas->redraw(); } static char name[1024]; static void file_cb(const char *n) { if(fl_filename_isdir(n)) return; strcpy(name, n); main_win->label(fl_filename_name(name)); get_image(name); } static void cancel_cb(Fl_Widget *, void *) { exit(0); } static void load_cb(Fl_Widget *,void *) { fl_file_chooser_callback(file_cb); fl_file_chooser("Image File","*.{xpm,png,jpg,gif,bmp}", "."); fl_file_chooser_callback(NULL); } int main(int argc, char **argv) { fl_register_images(); main_win = new Fl_Window(200,200,400,HEADER_H+400); main_win->label("Pixmap Browser"); main_win->begin(); { Fl_Button *b = new Fl_Button(5,5,100,35,"Load"); b->callback(load_cb); } { Fl_Button *b = new Fl_Button(105,5,100,35,"Cancel"); b->callback(cancel_cb); } canvas = new Canvas(0,HEADER_H,400,400); main_win->end(); main_win->resizable(canvas); main_win->show(); if (argv[1]) file_cb(argv[1]); return Fl::run(); } Link: http://www.fltk.org/str.php?L2331 Version: 2.0-current _______________________________________________ fltk-bugs mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk-bugs
