Greg Ercolano wrote:
> It's a little trickier than one thinks.
> This should work; I just added a draw() to your class
> which handles the details.
>
> #include <FL/Fl.H>
> #include <FL/Fl_Double_Window.H>
> #include <FL/Fl_Box.H>
> #include <FL/fl_draw.H>
> class Application : public Fl_Double_Window {
> Fl_Box *bx; // Child box widget
> public:
> Application(int w, int h, const char *l, int argc, char *argv[]) :
> Fl_Double_Window(w, h, l) {
> box(FL_DOWN_BOX); // Add 2 pixel border
> color(FL_WHITE);
>
> // Make child group to clip child box
> begin();
> bx = new Fl_Box(0,0,100, 400);
> bx->box(FL_FLAT_BOX);
> bx->color((Fl_Color) FL_RED);
> end();
>
> resizable(this);
> show(argc, argv);
> }
> void draw() {
> draw_box(box(),0,0,w(),h(),color()); // draw box + border
> fl_push_clip(Fl::box_dx(box()), Fl::box_dy(box()),
> w()-Fl::box_dw(box()), h()-Fl::box_dh(box()));
> Fl_Group::draw_children(); // draw children inside clipped
> region
> fl_pop_clip();
> }
> };
>
> int main (int argc, char ** argv) {
> Application myApp(500, 300, "My App", argc, argv);
> return(Fl::run());
> }
Thanks for your help Greg, it works !
I didn't know the draw_children function
and also the way the draw_box function is used.
I won't forget for the next time.
Stan wrote:
>Maybe you can say a bit more about what you're trying to accomplish.
Actually I'm trying to create a scrollbar class of my own (a subclass of
Fl_Group).
I know, the Fl_Scroll class do that job in FLTK, but I prefer to
build mine in order to manage both scrollbar exactly the way I want to.
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