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Updated Fl_Tabs to check the contrast of the label color against

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the tab background, and to highlight the top 5 lines of the tab
pane with the selection color so that selected tabs stand out
more.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@4295 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Michael R Sweet 2005-04-21 18:25:22 +00:00
parent 2eb4d42349
commit 668ef918e8
2 changed files with 47 additions and 7 deletions
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4
CHANGES
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@ -2,6 +2,10 @@ CHANGES IN FLTK 1.1.7
- Documentation fixes (STR #648, STR #692, STR #730, STR
#744, STR #745)
- Updated Fl_Tabs to check the contrast of the label
color against the tab background, and to highlight the
top 5 lines of the tab pane with the selection color so
that selected tabs stand out more.
- The example programs can now compile separate from the
FLTK source distribution (STR #809)
- The example programs are now installed with the

50
src/Fl_Tabs.cxx
View File

@ -238,7 +238,21 @@ void Fl_Tabs::draw() {
int H = tab_height();
if (damage() & FL_DAMAGE_ALL) { // redraw the entire thing:
draw_box(box(), x(), y()+(H>=0?H:0), w(), h()-(H>=0?H:-H), v ? v->color() : color());
Fl_Color c = v ? v->color() : color();
draw_box(box(), x(), y()+(H>=0?H:0), w(), h()-(H>=0?H:-H), c);
if (selection_color() != c) {
// Draw the top 5 lines of the tab pane in the selection color so
// that the user knows which tab is selected...
if (H >= 0) fl_push_clip(x(), y() + H, w(), 5);
else fl_push_clip(x(), y() + h() - H - 4, w(), 5);
draw_box(box(), x(), y()+(H>=0?H:0), w(), h()-(H>=0?H:-H),
selection_color());
fl_pop_clip();
}
if (v) draw_child(*v);
} else { // redraw the child
if (v) update_child(*v);
@ -272,12 +286,23 @@ void Fl_Tabs::draw_tab(int x1, int x2, int W, int H, Fl_Widget* o, int what) {
H += dh;
draw_box(box(), x1, y(), W, H,
sel ? fl_color_average(selection_color(), o->selection_color(), 0.5f)
: o->selection_color());
Fl_Color c = sel ? selection_color() : o->selection_color();
draw_box(box(), x1, y(), W, H, c);
// Make sure that the label contrasts the tab color...
c = fl_contrast(o->labelcolor(), c);
// Save the previous label color
Fl_Color oc = o->labelcolor();
// Draw the label using the contrast color...
o->labelcolor(c);
o->draw_label(x1, y(), W, H, FL_ALIGN_CENTER);
// Restore the original label color...
o->labelcolor(oc);
if (Fl::focus() == this && o->visible())
draw_focus(box(), x1, y(), W, H);
@ -290,12 +315,23 @@ void Fl_Tabs::draw_tab(int x1, int x2, int W, int H, Fl_Widget* o, int what) {
H += dh;
draw_box(box(), x1, y() + h() - H, W, H,
sel ? fl_color_average(selection_color(), o->selection_color(), 0.5f)
: o->selection_color());
Fl_Color c = sel ? selection_color() : o->selection_color();
draw_box(box(), x1, y() + h() - H, W, H, c);
// Make sure that the label contrasts the tab color...
c = fl_contrast(o->labelcolor(), c);
// Save the previous label color
Fl_Color oc = o->labelcolor();
// Draw the label using the contrast color...
o->labelcolor(c);
o->draw_label(x1, y() + h() - H, W, H, FL_ALIGN_CENTER);
// Restore the original label color...
o->labelcolor(oc);
if (Fl::focus() == this && o->visible())
draw_focus(box(), x1, y() + h() - H, W, H);