113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
/*
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timeline-body.hpp - Declaration of the timeline body widget
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Copyright (C) Lumiera.org
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2008, Joel Holdsworth <joel@airwebreathe.org.uk>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/** @file timeline-body.hpp
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** This file contains the definition of timeline body widget
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*/
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#ifndef TIMELINE_BODY_HPP
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#define TIMELINE_BODY_HPP
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#include "../../gtk-lumiera.hpp"
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#include "timeline-tool.hpp"
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namespace lumiera {
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namespace gui {
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namespace widgets {
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class TimelineWidget;
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namespace timeline {
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class TimelineBody : public Gtk::DrawingArea
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{
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public:
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TimelineBody(lumiera::gui::widgets::TimelineWidget *timeline_widget);
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~TimelineBody();
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ToolType get_tool() const;
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void set_tool(ToolType tool_type);
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/* ===== Events ===== */
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protected:
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void on_realize();
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void on_scroll();
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bool on_scroll_event(GdkEventScroll* event);
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bool on_button_press_event (GdkEventButton* event);
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bool on_button_release_event (GdkEventButton* event);
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bool on_motion_notify_event(GdkEventMotion *event);
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bool on_expose_event(GdkEventExpose* event);
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/* ===== Internals ===== */
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private:
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void begin_shift_drag();
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int get_vertical_offset() const;
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void set_vertical_offset(int offset);
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void register_styles() const;
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void read_styles();
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private:
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// Internal structures
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enum DragType
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{
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None,
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Shift
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};
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timeline::Tool *tool;
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double mouseDownX, mouseDownY;
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// Scroll State
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DragType dragType;
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gavl_time_t beginShiftTimeOffset;
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int beginShiftVerticalOffset;
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// Style properties
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GdkColor backgroundColour;
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GdkColor selectionColour;
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float selectionAlpha;
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lumiera::gui::widgets::TimelineWidget *timelineWidget;
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friend class Tool;
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friend class ArrowTool;
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friend class IBeamTool;
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};
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} // namespace timeline
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} // namespace widgets
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} // namespace gui
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} // namespace lumiera
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#endif // TIMELINE_BODY_HPP
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