diff options
Diffstat (limited to 'gtk2_ardour/cairo_widget.cc')
| -rw-r--r-- | gtk2_ardour/cairo_widget.cc | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/gtk2_ardour/cairo_widget.cc b/gtk2_ardour/cairo_widget.cc deleted file mode 100644 index 6abc758035..0000000000 --- a/gtk2_ardour/cairo_widget.cc +++ /dev/null @@ -1,178 +0,0 @@ -/* - Copyright (C) 2009 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. - -*/ - -#include "cairo_widget.h" -#include "gui_thread.h" - -static const char* has_cairo_widget_background_info = "has_cairo_widget_background_info"; - -CairoWidget::CairoWidget () - : _active_state (Gtkmm2ext::ActiveState (0)) - , _visual_state (Gtkmm2ext::VisualState (0)) - , _need_bg (true) -{ - -} - -CairoWidget::~CairoWidget () -{ -} - -bool -CairoWidget::on_expose_event (GdkEventExpose *ev) -{ - cairo_t* cr = gdk_cairo_create (get_window ()->gobj()); - cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height); - cairo_clip (cr); - - /* paint expose area the color of the parent window bg - */ - - Gdk::Color bg (get_parent_bg()); - - cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height); - cairo_set_source_rgb (cr, bg.get_red_p(), bg.get_green_p(), bg.get_blue_p()); - cairo_fill (cr); - - render (cr); - - cairo_destroy (cr); - - return true; -} - -/** Marks the widget as dirty, so that render () will be called on - * the next GTK expose event. - */ - -void -CairoWidget::set_dirty () -{ - ENSURE_GUI_THREAD (*this, &CairoWidget::set_dirty); - queue_draw (); -} - -/** Handle a size allocation. - * @param alloc GTK allocation. - */ -void -CairoWidget::on_size_allocate (Gtk::Allocation& alloc) -{ - Gtk::EventBox::on_size_allocate (alloc); - - set_dirty (); -} - -Gdk::Color -CairoWidget::get_parent_bg () -{ - Widget* parent; - - parent = get_parent (); - - while (parent) { - void* p = g_object_get_data (G_OBJECT(parent->gobj()), has_cairo_widget_background_info); - - if (p) { - Glib::RefPtr<Gtk::Style> style = parent->get_style(); - return style->get_bg (get_state()); - } - - if (!parent->get_has_window()) { - parent = parent->get_parent(); - } else { - break; - } - } - - if (parent && parent->get_has_window()) { - return parent->get_style ()->get_bg (parent->get_state()); - } - - return get_style ()->get_bg (get_state()); -} - -void -CairoWidget::set_active_state (Gtkmm2ext::ActiveState s) -{ - if (_active_state != s) { - _active_state = s; - StateChanged (); - } -} - -void -CairoWidget::set_visual_state (Gtkmm2ext::VisualState s) -{ - if (_visual_state != s) { - _visual_state = s; - StateChanged (); - } -} - -void -CairoWidget::set_active (bool yn) -{ - /* this is an API simplification for buttons - that only use the Active and Normal states. - */ - - if (yn) { - set_active_state (Gtkmm2ext::Active); - } else { - unset_active_state (); - } -} - -void -CairoWidget::on_state_changed (Gtk::StateType) -{ - /* this will catch GTK-level state changes from calls like - ::set_sensitive() - */ - - if (get_state() == Gtk::STATE_INSENSITIVE) { - set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive)); - } else { - set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive)); - } - - queue_draw (); -} - -void -CairoWidget::set_draw_background (bool yn) -{ - _need_bg = yn; -} - -void -CairoWidget::provide_background_for_cairo_widget (Gtk::Widget& w, const Gdk::Color& bg) -{ - /* set up @w to be able to provide bg information to - any CairoWidgets that are packed inside it. - */ - - w.modify_bg (Gtk::STATE_NORMAL, bg); - w.modify_bg (Gtk::STATE_INSENSITIVE, bg); - w.modify_bg (Gtk::STATE_ACTIVE, bg); - w.modify_bg (Gtk::STATE_SELECTED, bg); - - g_object_set_data (G_OBJECT(w.gobj()), has_cairo_widget_background_info, (void*) 0xfeedface); -} |