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Fl_Tooltip: Allow user to override tooltip show/hide behavior.

This commit is contained in:
Jonathan Moore Liles 2013-06-03 21:53:14 -07:00
parent 02768c459a
commit 8ee564bef3
2 changed files with 46 additions and 15 deletions
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3
FL/Fl_Tooltip.H
View File

@ -107,6 +107,9 @@ private:
static Fl_Widget* widget_; //!< Keeps track of the current target widget
};
extern void (*fl_show_tooltip)( const char *s );
extern void (*fl_hide_tooltip)( void );
#endif
//

58
src/Fl_Tooltip.cxx
View File

@ -77,6 +77,32 @@ Fl_Window *Fl_Tooltip::current_window(void)
}
#endif
static void show_tooltip_func ( const char *s )
{
if (!window) window = new Fl_TooltipBox;
// this cast bypasses the normal Fl_Window label() code:
((Fl_Widget*)window)->label(s);
window->layout();
window->redraw();
// printf("tooltip_timeout: Showing window %p with tooltip \"%s\"...\n",
// window, tip ? tip : "(null)");
window->show();
}
static void hide_tooltip_func ( void )
{
if (window) window->hide();
}
static void ensure_callbacks ( void )
{
if ( ! fl_hide_tooltip )
fl_hide_tooltip = hide_tooltip_func;
if ( ! fl_show_tooltip )
fl_show_tooltip = show_tooltip_func;
}
void Fl_TooltipBox::layout() {
fl_font(Fl_Tooltip::font(), Fl_Tooltip::size());
int ww, hh;
@ -124,7 +150,13 @@ static void recent_timeout(void*) {
static char recursion;
void (*fl_show_tooltip)( const char *s ) = 0;
void (*fl_hide_tooltip)( void ) = 0;
static void tooltip_timeout(void*) {
ensure_callbacks();
#ifdef DEBUG
puts("tooltip_timeout();");
#endif // DEBUG
@ -132,22 +164,14 @@ static void tooltip_timeout(void*) {
if (recursion) return;
recursion = 1;
if (!tip || !*tip) {
if (window) window->hide();
fl_hide_tooltip();
} else {
int condition = 1;
#if !(defined(__APPLE__) || defined(WIN32))
condition = (Fl::grab() == NULL);
#endif
if ( condition ) {
if (!window) window = new Fl_TooltipBox;
// this cast bypasses the normal Fl_Window label() code:
((Fl_Widget*)window)->label(tip);
window->layout();
window->redraw();
// printf("tooltip_timeout: Showing window %p with tooltip \"%s\"...\n",
// window, tip ? tip : "(null)");
window->show();
}
if ( condition )
fl_show_tooltip( tip );
}
Fl::remove_timeout(recent_timeout);
@ -212,11 +236,13 @@ void Fl_Tooltip::exit_(Fl_Widget *w) {
printf(" widget=%p, window=%p\n", widget_, window);
#endif // DEBUG
ensure_callbacks();
if (!widget_ || (w && w == window)) return;
widget_ = 0;
Fl::remove_timeout(tooltip_timeout);
Fl::remove_timeout(recent_timeout);
if (window && window->visible()) window->hide();
fl_hide_tooltip();
if (recent_tooltip) {
if (Fl::event_state() & FL_BUTTONS) recent_tooltip = 0;
else Fl::add_timeout(Fl_Tooltip::hoverdelay(), recent_timeout);
@ -242,6 +268,8 @@ void Fl_Tooltip::enter_area(Fl_Widget* wid, int x,int y,int w,int h, const char*
{
(void)x;
(void)w;
ensure_callbacks();
#ifdef DEBUG
printf("Fl_Tooltip::enter_area(wid=%p, x=%d, y=%d, w=%d, h=%d, t=\"%s\")\n",
@ -262,17 +290,17 @@ void Fl_Tooltip::enter_area(Fl_Widget* wid, int x,int y,int w,int h, const char*
widget_ = wid; Y = y; H = h; tip = t;
// popup the tooltip immediately if it was recently up:
if (recent_tooltip) {
if (window) window->hide();
fl_hide_tooltip();
Fl::add_timeout(Fl_Tooltip::hoverdelay(), tooltip_timeout);
} else if (Fl_Tooltip::delay() < .1) {
#ifdef WIN32
// possible fix for the Windows titlebar, it seems to want the
// window to be destroyed, moving it messes up the parenting:
if (window && window->visible()) window->hide();
fl_hide_tooltip();
#endif // WIN32
tooltip_timeout(0);
} else {
if (window && window->visible()) window->hide();
fl_hide_tooltip();
Fl::add_timeout(Fl_Tooltip::delay(), tooltip_timeout);
}