avoid multiple requests for redraws when resetting a TimeAxisViewItem name highlight
[ardour.git] / gtk2_ardour / time_axis_view_item.cc
index 6b9c35bb326ed6140156858a144b812a1bb653fe..d5b474a5e3c3250992a555bdff2bb4552fbc46e2 100644 (file)
@@ -59,8 +59,9 @@ using namespace Gtkmm2ext;
 
 Pango::FontDescription TimeAxisViewItem::NAME_FONT;
 const double TimeAxisViewItem::NAME_X_OFFSET = 15.0;
-const double TimeAxisViewItem::GRAB_HANDLE_TOP = 6;
-const double TimeAxisViewItem::GRAB_HANDLE_WIDTH = 5;
+const double TimeAxisViewItem::GRAB_HANDLE_TOP = 0.0;
+const double TimeAxisViewItem::GRAB_HANDLE_WIDTH = 10.0;
+const double TimeAxisViewItem::RIGHT_EDGE_SHIFT = 1.0;
 
 int    TimeAxisViewItem::NAME_HEIGHT;
 double TimeAxisViewItem::NAME_Y_OFFSET;
@@ -86,7 +87,7 @@ TimeAxisViewItem::set_constant_heights ()
         layout = foo.create_pango_layout (X_("H")); /* just the ascender */
 
         NAME_HEIGHT = height;
-        NAME_Y_OFFSET = height + 2;
+        NAME_Y_OFFSET = height + 1;
         NAME_HIGHLIGHT_SIZE = height + 2;
         NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 3;
 }
@@ -109,6 +110,7 @@ TimeAxisViewItem::TimeAxisViewItem(
        framepos_t start, framecnt_t duration, bool recording, bool automation, Visibility vis
        )
        : trackview (tv)
+       , frame_position (-1)
        , item_name (it_name)
        , _height (1.0)
        , _recregion (recording)
@@ -124,6 +126,7 @@ TimeAxisViewItem::TimeAxisViewItem (const TimeAxisViewItem& other)
        , Selectable (other)
        , PBD::ScopedConnectionList()
        , trackview (other.trackview)
+       , frame_position (-1)
        , item_name (other.item_name)
        , _height (1.0)
        , _recregion (other._recregion)
@@ -187,10 +190,12 @@ TimeAxisViewItem::init (ArdourCanvas::Group* parent, double fpp, Gdk::Color cons
        if (visibility & ShowFrame) {
                frame = new ArdourCanvas::Rectangle (group, 
                                                     ArdourCanvas::Rect (0.0, 0.0, 
-                                                                        trackview.editor().sample_to_pixel(duration), 
-                                                                        trackview.current_height()));
+                                                                        trackview.editor().sample_to_pixel(duration) + RIGHT_EDGE_SHIFT
+                                                                        trackview.current_height() - 1.0));
 
                CANVAS_DEBUG_NAME (frame, string_compose ("frame for %1", get_item_name()));
+               
+               frame->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::LEFT|ArdourCanvas::Rectangle::RIGHT));
 
                if (_recregion) {
                        frame->set_outline_color (ARDOUR_UI::config()->get_canvasvar_RecordingRect());
@@ -198,13 +203,13 @@ TimeAxisViewItem::init (ArdourCanvas::Group* parent, double fpp, Gdk::Color cons
                        frame->set_outline_color (ARDOUR_UI::config()->get_canvasvar_TimeAxisFrame());
                }
 
-               // frame->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::RIGHT|ArdourCanvas::Rectangle::LEFT));
+               frame->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::RIGHT|ArdourCanvas::Rectangle::LEFT));
 
        } else {
 
                frame = 0;
        }
-
+       
        if (visibility & ShowNameHighlight) {
 
                double width;
@@ -212,17 +217,17 @@ TimeAxisViewItem::init (ArdourCanvas::Group* parent, double fpp, Gdk::Color cons
 
                if (visibility & FullWidthNameHighlight) {
                        start = 0.0;
-                       width = trackview.editor().sample_to_pixel(item_duration);
+                       width = trackview.editor().sample_to_pixel(item_duration) + RIGHT_EDGE_SHIFT;
                } else {
                        start = 1.0;
-                       width = trackview.editor().sample_to_pixel(item_duration) - 2.0;
+                       width = trackview.editor().sample_to_pixel(item_duration) - 2.0 + RIGHT_EDGE_SHIFT;
                }
 
                name_highlight = new ArdourCanvas::Rectangle (group, 
                                                              ArdourCanvas::Rect (start, 
                                                                                  trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE, 
-                                                                                 width - 4,
-                                                                                 trackview.current_height()));
+                                                                                 width - 2.0 + RIGHT_EDGE_SHIFT,
+                                                                                 trackview.current_height() - 1.0));
                CANVAS_DEBUG_NAME (name_highlight, string_compose ("name highlight for %1", get_item_name()));
                name_highlight->set_data ("timeaxisviewitem", this);
                 name_highlight->set_outline_what (ArdourCanvas::Rectangle::TOP);
@@ -322,28 +327,21 @@ TimeAxisViewItem::set_position(framepos_t pos, void* src, double* delta)
 
        frame_position = pos;
 
-       /*  This sucks. The GnomeCanvas version I am using
-           doesn't correctly implement gnome_canvas_group_set_arg(),
-           so that simply setting the "x" arg of the group
-           fails to move the group. Instead, we have to
-           use gnome_canvas_item_move(), which does the right
-           thing. I see that in GNOME CVS, the current (Sept 2001)
-           version of GNOME Canvas rectifies this issue cleanly.
-       */
-
-       double old_unit_pos;
-       double new_unit_pos = pos / samples_per_pixel;
-
-       old_unit_pos = group->position().x;
-
-       if (new_unit_pos != old_unit_pos) {
-               group->set_x_position (new_unit_pos);
-       }
+       double new_unit_pos = trackview.editor().sample_to_pixel (pos);
 
        if (delta) {
-               (*delta) = new_unit_pos - old_unit_pos;
+               (*delta) = new_unit_pos - group->position().x;
+               if (*delta == 0.0) {
+                       return true;
+               }
+       } else {
+               if (new_unit_pos == group->position().x) {
+                       return true;
+               }
        }
 
+       group->set_x_position (new_unit_pos);
+
        PositionChanged (frame_position, src); /* EMIT_SIGNAL */
 
        return true;
@@ -583,7 +581,7 @@ TimeAxisViewItem::set_height (double height)
                }
        }
 
-       vestigial_frame->set_y1 (height - 1);
+       vestigial_frame->set_y1 (height - 1.0);
 
        set_colors ();
 }
@@ -610,12 +608,7 @@ TimeAxisViewItem::manage_name_highlight ()
        if (name_highlight && wide_enough_for_name && high_enough_for_name) {
 
                name_highlight->show();
-
-               name_highlight->set_y0 ((double) _height - 1 - NAME_HIGHLIGHT_SIZE);
-               name_highlight->set_y1 ((double) _height - 1);
-               
-               /* x0 is always zero */
-               name_highlight->set_x1 (_width-1.0);
+               name_highlight->set (ArdourCanvas::Rect (0.0, (double) _height - NAME_HIGHLIGHT_SIZE,  _width+RIGHT_EDGE_SHIFT, (double) _height - 1.0));
                        
        } else {
                name_highlight->hide();
@@ -752,7 +745,7 @@ TimeAxisViewItem::set_colors()
        set_frame_color();
 
        if (name_highlight) {
-               name_highlight->set_fill_color (fill_color);
+                name_highlight->set_fill_color (fill_color);
        }
 
        if (name_text) {
@@ -930,10 +923,19 @@ TimeAxisViewItem::frame_handle_crossing (GdkEvent* ev, ArdourCanvas::Rectangle*
 {
        switch (ev->type) {
        case GDK_LEAVE_NOTIFY:
+               /* always hide the handle whenever we leave, no matter what mode */
                item->set_fill (false);
                break;
        case GDK_ENTER_NOTIFY:
-               item->set_fill (true);
+               if (trackview.editor().effective_mouse_mode() == Editing::MouseObject &&
+                   !trackview.editor().internal_editing()) {
+                       /* never set this to be visible in internal
+                          edit mode. Note, however, that we do need to
+                          undo visibility (LEAVE_NOTIFY case above) no
+                          matter what the mode is.
+                       */
+                       item->set_fill (true);
+               }
                break;
        default:
                break;
@@ -989,7 +991,7 @@ TimeAxisViewItem::reset_width_dependent_items (double pixel_width)
 
                if (frame) {
                        frame->show();
-                       frame->set_x1 (pixel_width);
+                       frame->set_x1 (pixel_width + RIGHT_EDGE_SHIFT);
                }
 
                if (frame_handle_start) {
@@ -1004,8 +1006,8 @@ TimeAxisViewItem::reset_width_dependent_items (double pixel_width)
                                frame_handle_end->hide();
                        } else {
                                frame_handle_start->show();
-                               frame_handle_end->set_x0 (pixel_width - (TimeAxisViewItem::GRAB_HANDLE_WIDTH));
-                               frame_handle_end->set_x1 (pixel_width);
+                               frame_handle_end->set_x0 (pixel_width + RIGHT_EDGE_SHIFT - (TimeAxisViewItem::GRAB_HANDLE_WIDTH));
+                               frame_handle_end->set_x1 (pixel_width + RIGHT_EDGE_SHIFT);
                                frame_handle_end->show();
                        }
                }