ardour/livetrax
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display and position canvas tooltip window

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This commit is contained in:
Paul Davis 2014-09-26 11:05:24 -04:00
parent 4cc07a2a5c
commit bb68d83e43
2 changed files with 48 additions and 13 deletions
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55
libs/canvas/canvas.cc
View File

@ -1000,8 +1000,6 @@ GtkCanvas::start_tooltip_timeout (Item* item)
little while.
*/
std::cerr << "wait for idle now that we're in " << item->name << std::endl;
Glib::signal_idle().connect (sigc::mem_fun (*this, &GtkCanvas::really_start_tooltip_timeout));
}
}
@ -1013,11 +1011,7 @@ GtkCanvas::really_start_tooltip_timeout ()
* wait 1 second and if the timeout isn't cancelled, show the tooltip.
*/
std::cerr << "gone idle\n";
if (current_tooltip_item) {
std::cerr << "have an item " << current_tooltip_item->name << " now wait 1second\n";
_current_timeout_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &GtkCanvas::show_tooltip), 1000);
}
@ -1027,9 +1021,6 @@ GtkCanvas::really_start_tooltip_timeout ()
void
GtkCanvas::stop_tooltip_timeout ()
{
if (current_tooltip_item) {
std::cerr << "Stop timeout for " << current_tooltip_item->name << "\n";
}
current_tooltip_item = 0;
_current_timeout_connection.disconnect ();
}
@ -1037,13 +1028,51 @@ GtkCanvas::stop_tooltip_timeout ()
bool
GtkCanvas::show_tooltip ()
{
if (current_tooltip_item) {
std::cerr << "Would show a tooltip for " << current_tooltip_item->name << '\n';
} else {
std::cerr << "tooltip timeout expired, but no item\n";
Rect tooltip_item_bbox;
if (!current_tooltip_item || current_tooltip_item->tooltip().empty() || !current_tooltip_item->bounding_box()) {
return false;
}
if (!tooltip_window) {
tooltip_window = new Gtk::Window (Gtk::WINDOW_POPUP);
tooltip_label = manage (new Gtk::Label);
tooltip_label->show ();
tooltip_window->add (*tooltip_label);
tooltip_window->set_border_width (6);
tooltip_window->set_name ("tooltip");
}
tooltip_label->set_text (current_tooltip_item->tooltip());
/* figure out where to position the tooltip */
Gtk::Widget* toplevel = get_toplevel();
assert (toplevel);
int pointer_x, pointer_y;
Gdk::ModifierType mask;
(void) toplevel->get_window()->get_pointer (pointer_x, pointer_y, mask);
Duple tooltip_item_center (pointer_x, pointer_y);
/* convert to root window coordinates */
int win_x, win_y;
dynamic_cast<Gtk::Window*>(toplevel)->get_position (win_x, win_y);
tooltip_item_center = tooltip_item_center.translate (Duple (win_x, win_y));
/* move the tooltip window into position */
tooltip_window->move (tooltip_item_center.x, tooltip_item_center.y);
/* ready to show */
tooltip_window->present ();
/* called from a timeout handler, don't call it again */
return false;
}

6
libs/canvas/canvas/canvas.h
View File

@ -38,6 +38,11 @@
#include "canvas/root_group.h"
namespace Gtk {
class Window;
class Label;
}
namespace ArdourCanvas
{
struct Rect;
@ -215,6 +220,7 @@ private:
sigc::connection _current_timeout_connection;
Item* current_tooltip_item;
Gtk::Window* tooltip_window;
Gtk::Label* tooltip_label;
bool show_tooltip ();
void hide_tooltip ();
bool really_start_tooltip_timeout ();