How do I make the Fl_Scroll widget automatically redraw the window when I move
the sliders?
In the little program below I'm able to move the image with the sliders but to
refresh the screen I have to resize the main window.
Thanks for any help,
Jens
----------------------------------------------------------------------
#include <FL/Fl.H>
#include <FL/fl_draw.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Scroll.H>
class Draw : public Fl_Widget {
public:
Draw(long int x, long int y, long int w, long int h, const char *l=0) :
Fl_Widget(x, y ,w ,h, l) {}
void draw() {
fl_color(FL_BLACK);
fl_rect(x(), y(), w(), h());
}
};
int main() {
Fl_Double_Window win(Fl::w(),Fl::h());
Fl_Scroll scroll(win.x(),win.y(),win.w(),win.h());
Draw * draw;
for(int i = 0; i < 1000; i+=10) {
draw = new Draw(win.x()-i,win.y()+i,win.w()+i,win.h()+i);
}
scroll.end();
win.resizable(scroll);
win.end();
win.show();
return(Fl::run());
}
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