On 2008-12-19, Albrecht Schlosser <[email protected]> wrote:
>
> I'm not aware of such display anomalities, but they can be there...
>
> Could you please post a short (but complete) source file that shows the
> effect so
> that we can see _what_ you are doing exactly, and maybe test it?
>
> Albrecht
hey Albrecht, this should do it. its only the relevant
drawing code. its ugly and i had no time to fix that yet.
;)
note: i have found that (on mac) linking against an fltk
lib that uses the other renderer (not Quartz) this code
draws like expected, like on the win/linux shots. so the
problem most likely is somewhere inside the Quartz code.
#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/fl_draw.H>
#include <FL/Fl_Box.H>
class Envelope_Editor: public Fl_Box
{
void draw();
int ee_x0, ee_y0, ee_w, ee_h;
double zoomlevel;
enum
{
vol, fil, aux
};
public:
Envelope_Editor(int x, int y, int w, int h, char* const label = 0) :
Fl_Box(x, y, w, h, label)
{
ee_x0 = this->x() + Fl::box_dx(this->box()) + 9;
ee_y0 = this->y() + Fl::box_dy(this->box()) + 9;
ee_w = 381; // 3 * 127
ee_h = 225; // +/- 100 + 20 header + 5 space
zoomlevel = 2;
}
};
void Envelope_Editor::draw()
{
// 0.0 position of coordinate system
int x0 = ee_x0;
int y0 = ee_y0 + 125; // 100 + 20 (20 pixel for header, 5 pixel space)
// background
fl_color(FL_BLACK);
fl_rectf(ee_x0, ee_y0 + 25, ee_w, ee_h - 24);
// coordinate system
fl_color(50, 50, 50);
int x_val = x0;
while ((x_val - x0) / zoomlevel < ee_w / zoomlevel)
{
fl_line(x_val, y0 - 100, x_val, y0 + 100);
x_val += 10 * zoomlevel;
}
for (int i = 0; i < 21; i++)
fl_line(x0, y0 - 100 + 10 * i, ee_w + ee_x0, y0 - 100 + 10 * i);
fl_color(80, 80, 80);
fl_line(x0 + 1, y0, x0 + ee_w - 2, y0);
// frame
fl_color(fl_darker(FL_BACKGROUND_COLOR));
fl_line_style(FL_SOLID, 2);
fl_rect(ee_x0 - 1, ee_y0 + 24, ee_w + 3, ee_h - 21);
}
int main(int argc, char *argv[])
{
Fl_Double_Window* w;
{ Fl_Double_Window* o = new Fl_Double_Window(400, 240);
w = o;
{ Envelope_Editor* o = new Envelope_Editor(1, 1, 381, 225, 0);
o->box(FL_NO_BOX);
}
o->end();
o->show();
}
return Fl::run();
}
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