diff options
Diffstat (limited to 'src/Fl_Tooltip.cxx')
| -rw-r--r-- | src/Fl_Tooltip.cxx | 285 |
1 files changed, 120 insertions, 165 deletions
diff --git a/src/Fl_Tooltip.cxx b/src/Fl_Tooltip.cxx index 069c9a38c..10413d31f 100644 --- a/src/Fl_Tooltip.cxx +++ b/src/Fl_Tooltip.cxx @@ -1,5 +1,5 @@ // -// "$Id: Fl_Tooltip.cxx,v 1.38.2.16 2002/05/02 15:02:31 easysw Exp $" +// "$Id: Fl_Tooltip.cxx,v 1.38.2.17 2002/05/13 05:05:11 spitzak Exp $" // // Tooltip source file for the Fast Light Tool Kit (FLTK). // @@ -23,203 +23,158 @@ // Please report all bugs and problems to "fltk-bugs@fltk.org". // -#include <FL/Fl.H> -#include <FL/Fl_Menu_Window.H> -#include <FL/Fl_Box.H> -#include <FL/fl_draw.H> #include <FL/Fl_Tooltip.H> +#include <FL/fl_draw.H> +#include <FL/Fl_Menu_Window.H> #include <stdio.h> -// -// Fl_Tooltip global variables... -// - -void (*Fl_Tooltip::tooltip_callback_)(void *) = Fl_Tooltip::tooltip_timeout; -void (*Fl_Tooltip::tooltip_exit_)(void *) = (void (*)(void *))Fl_Tooltip::tooltip_exit; -float Fl_Tooltip::delay_ = 0.5; -Fl_Tooltip_Box *Fl_Tooltip::box = 0; -Fl_Tooltip_Window *Fl_Tooltip::window = 0; -Fl_Widget *Fl_Tooltip::widget = 0; -int Fl_Tooltip::shown = 0; +float Fl_Tooltip::delay_ = 1.0f; +int Fl_Tooltip::enabled_ = 1; unsigned Fl_Tooltip::color_ = fl_color_cube(FL_NUM_RED - 1, FL_NUM_GREEN - 1, FL_NUM_BLUE - 2); +unsigned Fl_Tooltip::textcolor_ = FL_BLACK; int Fl_Tooltip::font_ = FL_HELVETICA; int Fl_Tooltip::size_ = FL_NORMAL_SIZE; +#define MAX_WIDTH 400 -// -// Tooltip window class... -// - -class Fl_Tooltip_Window : public Fl_Menu_Window { - public: - - FL_EXPORT ~Fl_Tooltip_Window() {} - Fl_Tooltip_Window(int W, int H, const char *l = 0) - : Fl_Menu_Window(W,H,l) { set_override(); } - Fl_Tooltip_Window(int X, int Y, int W, int H, const char *l = 0) - : Fl_Menu_Window(X,Y,W,H,l) {} -}; - - -// -// Tooltip label class... -// - -class Fl_Tooltip_Box : public Fl_Box { +class Fl_TooltipBox : public Fl_Menu_Window { public: - - Fl_Tooltip_Box() : Fl_Box(0,0,10,10) { - color(Fl_Tooltip::color_); - align(FL_ALIGN_CENTER); - box(FL_BORDER_BOX); - Fl_Tooltip::widget = 0; - } - - ~Fl_Tooltip_Box() { } - - void draw() { - tooltip(0); // Just in case - - if (!Fl_Tooltip::widget || !Fl_Tooltip::widget->tooltip()) - return; - - Fl_Window *widgetWindow = Fl_Tooltip::widget->window(); - - if (!widgetWindow) { -// printf("!widgetWindow\n"); - return; - } - - int ww, hh; - ww = 0; - - labelfont(Fl_Tooltip::font_); - labelsize(Fl_Tooltip::size_); - color(Fl_Tooltip::color_); - - fl_font(Fl_Tooltip::font_, Fl_Tooltip::size_); - - fl_measure(Fl_Tooltip::widget->tooltip(), ww, hh); - label(Fl_Tooltip::widget->tooltip()); - - int ox = Fl::event_x_root() + 10; - int oy = Fl::event_y_root() + 10; - - if (ox >= (Fl::w() - ww - 6)) - ox = Fl::w() - ww - 6; - if (oy >= (Fl::h() - hh - 6)) - oy = widgetWindow->y_root() + Fl_Tooltip::widget->y() - hh - 6; - - parent()->resize(ox, oy, ww+6, hh+6); - - draw_box(); - draw_label(); + Fl_TooltipBox() : Fl_Menu_Window(0, 0) { + set_override(); + end(); } + void draw(); + void layout(); +#ifdef _WIN32 + // You have to destroy the window or it will not raise next time: + void hide() {destroy();} +#endif }; - -// This function is called by widgets -// when the pointer enters them -void -Fl_Tooltip::enter(Fl_Widget *w) { -// printf("Fl_Tooltip::enter(%p)\n", w); -// if (w) { -// printf(" label() = \"%s\"\n", w->label() ? w->label() : "(null)"); -// printf(" visible() = %d\n", w->visible()); -// printf(" active() = %d\n", w->active()); -// } - Fl_Widget* temp = w; - while (temp && !temp->tooltip()) { - if (temp == window) return; // Don't do anything if pointed at tooltip - temp = temp->parent(); +static const char* tip; +static Fl_Widget* widget; +static Fl_TooltipBox *window = 0; +static int X,Y,W,H; + +void Fl_TooltipBox::layout() { + fl_font(Fl_Tooltip::font(), Fl_Tooltip::size()); + int ww, hh; + ww = MAX_WIDTH; + fl_measure(tip, ww, hh, FL_ALIGN_LEFT|FL_ALIGN_WRAP|FL_ALIGN_INSIDE); + ww += 6; hh += 6; + + // find position on the screen of the widget: + int ox = Fl::event_x_root(); + //int ox = X+W/2; + int oy = Y + H+2; + for (Fl_Widget* p = widget; p; p = p->window()) { + //ox += p->x(); + oy += p->y(); } - - if ((!w || !w->tooltip()) && tooltip_callback_) { -// puts("Hiding tooltip..."); - Fl::remove_timeout(tooltip_callback_); - if (window) window->hide(); - shown = 0; - return; + if (ox+ww > Fl::w()) ox = Fl::w() - ww; + if (ox < 0) ox = 0; + if (H > 30) { + oy = Fl::event_y_root()+13; + if (oy+hh > Fl::h()) oy -= 23+hh; + } else { + if (oy+hh > Fl::h()) oy -= (4+hh+H); } - if (!tooltip_callback_ || !w || !w->tooltip()) return; - Fl::remove_timeout(tooltip_callback_); - if (window && window->shown()) (*tooltip_callback_)(w); - else Fl::add_timeout(delay_, tooltip_callback_, w); -} + if (oy < 0) oy = 0; + resize(ox, oy, ww, hh); +} -// This function must be called when -// an event != FL_MOVE has occured in -// the widget -void -Fl_Tooltip::exit(Fl_Widget *w) { -// printf("Fl_Tooltip::exit(%p)\n", w); - if (tooltip_exit_) tooltip_exit_(w); +void Fl_TooltipBox::draw() { + draw_box(FL_BORDER_BOX, 0, 0, w(), h(), Fl_Tooltip::color()); + fl_color(Fl_Tooltip::textcolor()); + fl_font(Fl_Tooltip::font(), Fl_Tooltip::size()); + fl_draw(tip, 3, 3, w()-6, h()-6, Fl_Align(FL_ALIGN_LEFT|FL_ALIGN_WRAP)); } -void -Fl_Tooltip::tooltip_exit(Fl_Widget *w) { -// printf("Fl_Tooltip::tooltip_exit(%p), widget = %p, window = %p, shown = %d\n", -// w, widget, window, shown); - if (!w || w != widget) return; +static char recent_tooltip; - Fl::remove_timeout(tooltip_callback_); +static void recent_timeout(void*) { + recent_tooltip = 0; +} - widget = 0; +static char recursion; + +static void tooltip_timeout(void*) { + if (recursion) return; + recursion = 1; + if (!tip || !*tip) return; + //if (Fl::grab()) return; + if (!window) window = new Fl_TooltipBox; + // this cast bypasses the normal Fl_Window label() code: + ((Fl_Widget*)window)->label(tip); + window->layout(); + window->redraw(); + window->show(); + Fl::remove_timeout(recent_timeout); + recent_tooltip = 1; + recursion = 0; +} - if (window) { -// puts("Hiding tooltip..."); - window->hide(); - shown = 0; - } +// This is called when a widget is destroyed: +static void +tt_exit(Fl_Widget *w) { + if (w && w == widget) Fl_Tooltip::enter_area(0,0,0,0,0,0); } -void -Fl_Tooltip::tooltip_timeout(void *v) { -// printf("Fl_Tooltip::tooltip_timeout(%p)\n", v); - if (!window) { - Fl_Group* saveCurrent = Fl_Group::current(); - Fl_Group::current(0); - window = new Fl_Tooltip_Window(0, 0, 10, 10, 0); - window->clear_border(); - window->box(FL_NO_BOX); - window->set_override(); - - window->begin(); - box = new Fl_Tooltip_Box; - box->color(FL_YELLOW); - box->align(FL_ALIGN_CENTER); - window->resizable(box); - window->end(); - Fl_Group::current(saveCurrent); - -// printf("Fl_Tooltip::window = %p\n", window); -// printf("Fl_Tooltip::box = %p\n", box); +static void +tt_enter(Fl_Widget* widget) { + // find the enclosing group with a tooltip: + Fl_Widget* w = widget; + while (w && !w->tooltip()) { + if (w == window) return; // don't do anything if pointed at tooltip + w = w->parent(); } - - if (!v) - return; - - if (shown && widget != (Fl_Widget *)v) { - tooltip_exit(widget); + if (!w) { + Fl_Tooltip::enter_area(0, 0, 0, 0, 0, 0); + } else { + Fl_Tooltip::enter_area(widget,0,0,widget->w(), widget->h(), w->tooltip()); } +} - widget = (Fl_Widget*) v; - Fl_Window *widgetWindow = widget->window(); - - if (widgetWindow) { -// puts("Showing tooltip"); - window->show(); - shown = 1; - } else { +void +Fl_Tooltip::enter_area(Fl_Widget* wid, int x,int y,int w,int h, const char* t) +{ + if (recursion) return; + Fl::remove_timeout(tooltip_timeout); + Fl::remove_timeout(recent_timeout); + if (t && *t && enabled()) { // there is a tooltip + // do nothing if it is the same: + if (wid==widget && x==X && y==Y && w==W && h==H && t==tip) return; + // remember it: + widget = wid; X = x; Y = y; W = w; H = h; tip = t; + if (recent_tooltip || Fl_Tooltip::delay() < .1) { + // switch directly from a previous tooltip to the new one: + tooltip_timeout(0); + } else { + if (window) window->hide(); + Fl::add_timeout(Fl_Tooltip::delay(), tooltip_timeout); + } + } else { // no tooltip + tip = 0; widget = 0; + if (window) window->hide(); + if (recent_tooltip) Fl::add_timeout(.2, recent_timeout); } } +void Fl_Widget::tooltip(const char *tt) { + static char beenhere = 0; + if (!beenhere) { + beenhere = 1; + Fl_Tooltip::enter = tt_enter; + Fl_Tooltip::exit = tt_exit; + } + tooltip_ = tt; +} // -// End of "$Id: Fl_Tooltip.cxx,v 1.38.2.16 2002/05/02 15:02:31 easysw Exp $". +// End of "$Id: Fl_Tooltip.cxx,v 1.38.2.17 2002/05/13 05:05:11 spitzak Exp $". // |