diff options
Diffstat (limited to 'libs/gtkmm2ext/gtkmm2ext/scroomer.h')
-rw-r--r-- | libs/gtkmm2ext/gtkmm2ext/scroomer.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/libs/gtkmm2ext/gtkmm2ext/scroomer.h b/libs/gtkmm2ext/gtkmm2ext/scroomer.h new file mode 100644 index 0000000000..d4f2ce6aa3 --- /dev/null +++ b/libs/gtkmm2ext/gtkmm2ext/scroomer.h @@ -0,0 +1,88 @@ +/* + Copyright (C) 2008 Paul Davis + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef __gtkmm2ext_scroomer_h__ +#define __gtkmm2ext_scroomer_h__ + +#include <gtkmm/drawingarea.h> +#include <gtkmm/adjustment.h> +#include <gdkmm.h> + +namespace Gtkmm2ext { + +class Scroomer : public Gtk::DrawingArea +{ +public: + enum Component { + TopBase = 0, + Handle1 = 1, + Slider = 2, + Handle2 = 3, + BottomBase = 4, + Total = 5, + None = 6 + }; + + Scroomer(Gtk::Adjustment& adjustment); + ~Scroomer(); + + bool on_motion_notify_event (GdkEventMotion*); + bool on_button_press_event (GdkEventButton*); + bool on_button_release_event (GdkEventButton*); + bool on_scroll_event (GdkEventScroll*); + virtual void on_size_allocate (Gtk::Allocation&); + + void set_comp_rect(GdkRectangle&, Component) const; + + Component point_in(double point) const; + + void set_min_page_size(double page_size); + int get_handle_size() { return handle_size; } + + inline int position_of(Component comp) { return position[comp]; } + + // debug + std::string get_comp_name(Component); + +protected: + Gtk::Adjustment& adj; + +private: + struct UpdateRect { + GdkRectangle rect; + Component first_comp; + }; + + void update(); + void adjustment_changed (); + + int position[6]; + int old_pos[6]; + int handle_size; + double min_page_size; + GdkWindow* grab_window; + Component grab_comp; + double grab_y; + double unzoomed_val; + double unzoomed_page; +}; + +} // namespace + +#endif /* __gtkmm2ext_scroomer_h__ */ |