mirror of https://github.com/fltk/fltk
Fix Fl_Tabs callback in Overflow mode (#1031).
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@ -251,6 +251,8 @@ protected:
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Fl_Align tab_align_; ///< tab label alignment
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int has_overflow_menu;///< set in OVERFLOW_PULLDOWN mode if tabs overflow. The actual menu array is created only on demand
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void take_focus(Fl_Widget *o);
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void maybe_do_callback(Fl_Widget *o);
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void check_overflow_menu();
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void handle_overflow_menu();
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void draw_overflow_menu_button();
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@ -374,6 +374,35 @@ void Fl_Tabs::check_overflow_menu() {
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}
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}
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/**
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Take keyboard focus if o is not NULL.
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\param[in] o selected tab
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*/
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void Fl_Tabs::take_focus(Fl_Widget *o) {
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if (o && Fl::visible_focus() && Fl::focus()!=this) {
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Fl::focus(this);
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redraw_tabs();
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}
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}
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/**
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Set tab o as selected an call callbacks if needed.
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\param[in] o the newly selected tab
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*/
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void Fl_Tabs::maybe_do_callback(Fl_Widget *o) {
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if (o && // Released on a tab and..
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(value(o) || // tab changed value or..
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(when()&(FL_WHEN_NOT_CHANGED)) // ..no change but WHEN_NOT_CHANGED set,
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) // handles FL_WHEN_RELEASE_ALWAYS too.
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) {
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Fl_Widget_Tracker wp(o);
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set_changed();
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do_callback(FL_REASON_SELECTED);
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if (wp.deleted()) return;
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}
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return;
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}
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/**
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This is called when the user clicks the overflow pulldown menu button.
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@ -414,8 +443,13 @@ void Fl_Tabs::handle_overflow_menu() {
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// show the menu and handle the selection
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const Fl_Menu_Item *m = overflow_menu->popup(x()+w()-H, (tab_height()>0)?(y()+H):(y()+h()));
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if (m)
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value((Fl_Widget*)m->user_data());
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if (m) {
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Fl_Widget *o = (Fl_Widget*)m->user_data();
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push(0);
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take_focus(o);
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maybe_do_callback(o);
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Fl_Tooltip::current(o);
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}
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// delete the menu until we need it next time
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if (overflow_menu) {
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@ -532,24 +566,12 @@ int Fl_Tabs::handle(int event) {
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}
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if (event == FL_RELEASE) {
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push(0);
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if (o && Fl::visible_focus() && Fl::focus()!=this) {
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Fl::focus(this);
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redraw_tabs();
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}
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take_focus(o);
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if (o && (o->when() & FL_WHEN_CLOSED) && hit_close(o, Fl::event_x(), Fl::event_y())) {
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o->do_callback(FL_REASON_CLOSED);
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return 1; // o may be deleted at this point
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}
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if (o && // Released on a tab and..
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(value(o) || // tab changed value or..
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(when()&(FL_WHEN_NOT_CHANGED)) // ..no change but WHEN_NOT_CHANGED set,
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) // handles FL_WHEN_RELEASE_ALWAYS too.
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) {
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Fl_Widget_Tracker wp(o);
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set_changed();
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do_callback(FL_REASON_SELECTED);
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if (wp.deleted()) return 1;
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}
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maybe_do_callback(o);
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Fl_Tooltip::current(o);
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} else {
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push(o);
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10
test/tabs.fl
10
test/tabs.fl
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@ -12,7 +12,13 @@ Function {} {open
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label {class Fl_Tabs}
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xywh {95 0 130 35} labeltype ENGRAVED_LABEL labelfont 1
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}
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Fl_Tabs tabs_group {open
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Fl_Tabs tabs_group {
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callback {Fl_Widget *sel_tab = o->value();
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if (sel_tab) {
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printf("Callback called for tab \\"%s\\"\\n", sel_tab->label());
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} else {
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printf("Callback called\\n");
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}} open selected
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tooltip {the various index cards test different aspects of the Fl_Tabs widget} xywh {10 35 315 260} selection_color 4 labelcolor 7 resizable
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code0 {// tabs_group->handle_overflow(Fl_Tabs::OVERFLOW_PULLDOWN);}
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} {
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@ -159,7 +165,7 @@ Function {} {open
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}
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}
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Fl_Group {} {
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label tab2 selected
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label tab2
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tooltip {tab2 tests among other things the cooperation of modal windows and tabs} xywh {330 60 320 235} selection_color 2
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} {
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Fl_Button {} {
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