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Allow dragging of a scrollbar grip.

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This commit is contained in:
Mark de Wever 2009-10-03 17:52:05 +00:00
parent fbacbd3a2c
commit eab5ee0219
2 changed files with 72 additions and 0 deletions
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65
src/gui/widgets/scrollbar.cpp
View file

@ -44,6 +44,10 @@ tscrollbar_::tscrollbar_()
&tscrollbar_::signal_handler_mouse_motion, this, _2, _3, _5));
connect_signal<event::MOUSE_LEAVE>(boost::bind(
&tscrollbar_::signal_handler_mouse_leave, this, _2, _3));
connect_signal<event::LEFT_BUTTON_DOWN>(boost::bind(
&tscrollbar_::signal_handler_left_button_down, this, _2, _3));
connect_signal<event::LEFT_BUTTON_UP>(boost::bind(
&tscrollbar_::signal_handler_left_button_up, this, _2, _3));
}
void tscrollbar_::scroll(const tscroll scroll)
@ -433,5 +437,66 @@ void tscrollbar_::signal_handler_mouse_leave(
handled = true;
}
void tscrollbar_::signal_handler_left_button_down(
const event::tevent event, bool& handled)
{
DBG_GUI_E << get_control_type() << "[" << id() << "]: " << event << ".\n";
tpoint mouse = get_mouse_position();
mouse.x -= get_x();
mouse.y -= get_y();
if(on_positioner(mouse)) {
assert(get_window());
mouse_ = mouse;
get_window()->mouse_capture();
set_state(PRESSED);
}
const int bar = on_bar(mouse);
if(bar == -1) {
scroll(HALF_JUMP_BACKWARDS);
if(callback_positioner_move_) {
callback_positioner_move_(this);
}
} else if(bar == 1) {
scroll(HALF_JUMP_FORWARD);
if(callback_positioner_move_) {
callback_positioner_move_(this);
}
} else {
assert(bar == 0);
}
handled = true;
}
void tscrollbar_::signal_handler_left_button_up(
const event::tevent event, bool& handled)
{
DBG_GUI_E << get_control_type() << "[" << id() << "]: " << event << ".\n";
tpoint mouse = get_mouse_position();
mouse.x -= get_x();
mouse.y -= get_y();
if(state_ != PRESSED) {
return;
}
assert(get_window());
get_window()->mouse_capture(false);
if(on_positioner(mouse)) {
set_state(FOCUSSED);
} else {
set_state(ENABLED);
}
handled = true;
}
} // namespace gui2

7
src/gui/widgets/scrollbar.hpp
View file

@ -319,6 +319,13 @@ private:
const event::tevent event, bool& handled, const tpoint& coordinate);
void signal_handler_mouse_leave(const event::tevent event, bool& handled);
void signal_handler_left_button_down(
const event::tevent event, bool& handled);
void signal_handler_left_button_up(
const event::tevent event, bool& handled);
};
} // namespace gui2