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Solves Fl_Tree focus box artifacts on linux - fixes issue #299.

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Nabbed the current code from Fl_Widget::draw_focus() which solves.
This commit is contained in:
Greg Ercolano 2021-11-27 10:20:47 -08:00
parent 84c09ae7b2
commit 36af6a5729
1 changed files with 5 additions and 24 deletions
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29
src/Fl_Tree_Item.cxx
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@ -796,6 +796,7 @@ Fl_Tree_Item *Fl_Tree_Item::find_clicked(const Fl_Tree_Prefs &prefs, int yonly)
}
static void draw_item_focus(Fl_Boxtype B, Fl_Color fg, Fl_Color bg, int X, int Y, int W, int H) {
// Pasted from Fl_Widget::draw_focus(); we don't have access to this method
if (!Fl::visible_focus()) return;
switch (B) {
case FL_DOWN_BOX:
@ -807,32 +808,12 @@ static void draw_item_focus(Fl_Boxtype B, Fl_Color fg, Fl_Color bg, int X, int Y
default:
break;
}
fl_color(fl_contrast(fg, bg));
//#if defined(USE_X11) || defined(__APPLE_QUARTZ__)
fl_line_style(FL_DOT);
fl_rect(X + Fl::box_dx(B), Y + Fl::box_dy(B),
W - Fl::box_dw(B) - 1, H - Fl::box_dh(B) - 1);
fl_line_style(FL_SOLID);
/*#else
// Some platforms don't implement dotted line style, so draw
// every other pixel around the focus area...
//
// Also, QuickDraw (MacOS) does not support line styles specifically,
// and the hack we use in fl_line_style() will not draw horizontal lines
// on odd-numbered rows...
int i, xx, yy;
X += Fl::box_dx(B);
Y += Fl::box_dy(B);
W -= Fl::box_dw(B) + 2;
H -= Fl::box_dh(B) + 2;
for (xx = 0, i = 1; xx < W; xx ++, i ++) if (i & 1) fl_point(X + xx, Y);
for (yy = 0; yy < H; yy ++, i ++) if (i & 1) fl_point(X + W, Y + yy);
for (xx = W; xx > 0; xx --, i ++) if (i & 1) fl_point(X + xx, Y + H);
for (yy = H; yy > 0; yy --, i ++) if (i & 1) fl_point(X, Y + yy);
#endif*/
W -= Fl::box_dw(B)+1;
H -= Fl::box_dh(B)+1;
fl_color(fl_contrast(fg, bg));
fl_focus_rect(X, Y, W, H);
}
/// Return the item's 'visible' height. Takes into account the item's: