Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 195 insertions, 0 deletions

diff --git a/gtk2_ardour/crossfade_edit.h b/gtk2_ardour/crossfade_edit.h
new file mode 100644
index 0000000000..dbe62dea66
--- /dev/null
+++ b/gtk2_ardour/crossfade_edit.h
@@ -0,0 +1,195 @@
+#ifndef __gtk_ardour_xfade_edit_h__
+#define __gtk_ardour_xfade_edit_h__
+
+#include <list>
+
+#include <gtk--/box.h>
+#include <gtk--/button.h>
+#include <gtk--/radiobutton.h>
+#include <gtk-canvas.h>
+
+#include <ardour/curve.h>
+#include "ardour_dialog.h"
+
+namespace ARDOUR
+{
+	class Session;
+	class Curve;
+	class Crossfade;
+}
+
+class CrossfadeEditor : public ArdourDialog
+{
+  public:
+    CrossfadeEditor (ARDOUR::Session&, ARDOUR::Crossfade&, double miny, double maxy);
+    ~CrossfadeEditor ();
+    
+    void apply ();
+
+    static const double canvas_border;
+    
+    /* these are public so that a caller/subclass can make them do the right thing.
+     */
+    
+    Gtk::Button cancel_button;
+    Gtk::Button ok_button;
+
+    struct PresetPoint {
+	double x;
+	double y;
+
+	PresetPoint (double a, double b) 
+		: x (a), y (b) {}
+    };
+
+    struct Preset : public list<PresetPoint> {
+	const gchar** xpm;
+	
+	Preset (const gchar** x)
+		: xpm (x) {}
+    };
+
+    typedef list<Preset*> Presets;
+
+    static Presets* fade_in_presets;
+    static Presets* fade_out_presets;
+
+  private:
+    ARDOUR::Crossfade& xfade;
+    ARDOUR::Session& session;
+
+    Gtk::VBox vpacker;
+
+    struct Point {
+	~Point();
+
+	GtkCanvasItem* box;
+	GtkCanvasItem* curve;
+	double x;
+	double y;
+
+	static const int32_t size;
+
+	void move_to (double x, double y, double xfract, double yfract);
+    };
+
+    struct PointSorter 
+    {
+	bool operator() (const CrossfadeEditor::Point* a, const CrossfadeEditor::Point *b) {
+		return a->x < b->x;
+	}
+    };
+
+    GtkWidget*    _canvas;
+    GtkCanvasItem* toplevel;
+    Gtk::Widget*   canvas;
+
+    struct Half {
+	GtkCanvasItem*          line;
+	GtkCanvasItem*          shading;
+	list<Point*>            points;
+	ARDOUR::Curve           normative_curve; /* 0 - 1.0, linear */
+	ARDOUR::Curve           gain_curve;      /* 0 - 2.0, gain mapping */
+	vector<GtkCanvasItem*>  waves;
+
+	Half();
+    };
+
+    enum WhichFade {
+	    In = 0,
+	    Out = 1
+    };
+
+    Half fade[2];
+    WhichFade current;
+
+    bool point_grabbed;
+    vector<Gtk::Button*> fade_out_buttons;
+    vector<Gtk::Button*> fade_in_buttons;
+
+    Gtk::HBox action_box;
+
+    Gtk::VBox vpacker2;
+
+    Gtk::Button clear_button;
+    Gtk::Button revert_button;
+
+    Gtk::ToggleButton audition_both_button;
+    Gtk::ToggleButton audition_left_dry_button;
+    Gtk::ToggleButton audition_left_button;
+    Gtk::ToggleButton audition_right_dry_button;
+    Gtk::ToggleButton audition_right_button;
+
+    Gtk::ToggleButton preroll_button;
+    Gtk::ToggleButton postroll_button;
+
+    Gtk::HBox roll_box;
+
+    gint event_handler (GdkEvent*);
+
+    static gint _canvas_event (GtkCanvasItem*, GdkEvent* event, gpointer data);
+    static gint _point_event (GtkCanvasItem*, GdkEvent* event, gpointer data);
+    static gint _curve_event (GtkCanvasItem*, GdkEvent* event, gpointer data);
+
+    gint canvas_event (GtkCanvasItem*, GdkEvent* event);
+    gint point_event (GtkCanvasItem*, GdkEvent* event);
+    gint curve_event (GtkCanvasItem*, GdkEvent* event);
+
+    void canvas_allocation (GtkAllocation*);
+    void add_control_point (double x, double y);
+    Point* make_point ();
+    void redraw ();
+    
+    double effective_width () const { return _canvas->allocation.width - (2.0 * canvas_border); }
+    double effective_height () const { return _canvas->allocation.height - (2.0 * canvas_border); }
+
+    void clear ();
+    void reset ();
+
+    double miny;
+    double maxy;
+
+    Gtk::Table fade_in_table;
+    Gtk::Table fade_out_table;
+
+    void build_presets ();
+    void apply_preset (Preset*);
+    
+    Gtk::RadioButton select_in_button;
+    Gtk::RadioButton select_out_button;
+    Gtk::HBox   curve_button_box;
+    Gtk::HBox   audition_box;
+
+    void curve_select_clicked (WhichFade);
+
+    double x_coordinate (double& xfract) const;
+    double y_coordinate (double& yfract) const;
+    
+    void set (const ARDOUR::Curve& alist, WhichFade);
+
+    void make_waves (ARDOUR::AudioRegion&, WhichFade);
+    void peaks_ready (ARDOUR::AudioRegion* r, WhichFade);
+    
+    void _apply_to (ARDOUR::Crossfade* xf);
+    void setup (ARDOUR::Crossfade*);
+    void cancel_audition ();
+    void audition_state_changed (bool);
+
+    void audition_toggled ();
+    void audition_right_toggled ();
+    void audition_right_dry_toggled ();
+    void audition_left_toggled ();
+    void audition_left_dry_toggled ();
+
+    void audition_both ();
+    void audition_left_dry ();
+    void audition_left ();
+    void audition_right_dry ();
+    void audition_right ();
+
+    void xfade_changed (ARDOUR::Change);
+
+    void dump ();
+};
+
+#endif /* __gtk_ardour_xfade_edit_h__ */