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Add more display scaling factors for testing.

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These scaling factors can be activated by defining the preprocessor
macro TEST_SCALING.

Note: this feature may be changed or removed in the future.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12812 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Albrecht Schlosser 2018-03-28 16:27:43 +00:00
parent 458d063643
commit ef0f00d357
1 changed files with 18 additions and 1 deletions
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19
src/Fl_Screen_Driver.cxx
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@ -395,7 +395,24 @@ int Fl_Screen_Driver::scale_handler(int event)
int screen = wid->top_window()->driver()->screen_num();
Fl_Screen_Driver *screen_dr = Fl::screen_driver();
static float initial_scale = screen_dr->scale(screen);
static float scaling_values[] = {0.5, 2.f/3, 0.8, 0.9, 1, 1.1, 1.2, 4.f/3, 1.5, 1.7, 2, 2.4, 3};
#if defined(TEST_SCALING)
// test scaling factors: lots of values from 0.3 to 8.0
static float scaling_values[] = {
0.30000, 0.33661, 0.37768, 0.42376, 0.47547,
0.50000, 0.53348, 0.59858, 0.67162, 0.75357,
0.84551, 0.94868, 1.00000, 1.06444, 1.19432,
1.34005, 1.50000, 1.68702, 1.89287, 2.00000,
2.12384, 7.0f/3, 2.38298, 8.0f/3, 3.00000,
10.0f/3, 3.75000, 4.00000, 13.0f/3, 14.0f/3,
5.00000, 16.0f/3, 17.0f/3, 6.00000, 7.00000,
8.00000};
#else
// scaling factors for the standard GUI
static float scaling_values[] = {
0.5, 2.f/3, 0.8, 0.9, 1.0,
1.1, 1.2, 4.f/3, 1.5, 1.7,
2.0, 2.4, 3.0};
#endif
float f, old_f = screen_dr->scale(screen)/initial_scale;
if (key == '0' || key == 0xE0) f = 1;
else {