From 2fb2442dd31dc6f5e434011bedd552823bd82fd3 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed, 27 Jul 2011 19:11:39 +0000
Subject: [PATCH] Primary-(scroll|up|down) on patch/bank change event changes
 bank number; change format of verbose cursor when inside patch/bank change

git-svn-id: svn://localhost/ardour2/branches/3.0@9939 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 gtk2_ardour/canvas_patch_change.cc | 27 ++++++++++++++++----
 gtk2_ardour/midi_region_view.cc    | 41 +++++++++++++++++++++++++++++-
 gtk2_ardour/midi_region_view.h     |  3 +++
 3 files changed, 65 insertions(+), 6 deletions(-)

diff --git a/gtk2_ardour/canvas_patch_change.cc b/gtk2_ardour/canvas_patch_change.cc
index 53bddbef40..7f7413e39e 100644
--- a/gtk2_ardour/canvas_patch_change.cc
+++ b/gtk2_ardour/canvas_patch_change.cc
@@ -23,6 +23,7 @@
 
 #include "gtkmm2ext/keyboard.h"
 #include "ardour/midi_patch_manager.h"
+
 #include "ardour_ui.h"
 #include "midi_region_view.h"
 #include "canvas_patch_change.h"
@@ -31,6 +32,7 @@
 
 using namespace Gnome::Canvas;
 using namespace MIDI::Name;
+using namespace Gtkmm2ext;
 using namespace std;
 
 /** @param x x position in pixels.
@@ -118,7 +120,6 @@ CanvasPatchChange::initialize_popup_menus()
 void
 CanvasPatchChange::on_patch_menu_selected(const PatchPrimaryKey& key)
 {
-	cerr << " got patch program number " << key.program_number << endl;
 	_region.change_patch_change (*this, key);
 }
 
@@ -166,12 +167,20 @@ CanvasPatchChange::on_event (GdkEvent* ev)
 		case GDK_Up:
 		case GDK_KP_Up:
 		case GDK_uparrow:
-			_region.previous_patch (*this);
+			if (Keyboard::modifier_state_contains (ev->scroll.state, Keyboard::PrimaryModifier)) {
+				_region.previous_bank (*this);
+			} else {
+				_region.previous_patch (*this);
+			}
 			break;
 		case GDK_Down:
 		case GDK_KP_Down:
 		case GDK_downarrow:
-			_region.next_patch (*this);
+			if (Keyboard::modifier_state_contains (ev->scroll.state, Keyboard::PrimaryModifier)) {
+				_region.next_bank (*this);
+			} else {
+				_region.next_patch (*this);
+			}
 			break;
 		default:
 			break;
@@ -180,10 +189,18 @@ CanvasPatchChange::on_event (GdkEvent* ev)
 
 	case GDK_SCROLL:
 		if (ev->scroll.direction == GDK_SCROLL_UP) {
-			_region.previous_patch (*this);
+			if (Keyboard::modifier_state_contains (ev->scroll.state, Keyboard::PrimaryModifier)) {
+				_region.previous_bank (*this);
+			} else {
+				_region.previous_patch (*this);
+			}
 			return true;
 		} else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
-			_region.next_patch (*this);
+			if (Keyboard::modifier_state_contains (ev->scroll.state, Keyboard::PrimaryModifier)) {
+				_region.next_bank (*this);
+			} else {
+				_region.next_patch (*this);
+			}
 			return true;
 		}
 		break;
diff --git a/gtk2_ardour/midi_region_view.cc b/gtk2_ardour/midi_region_view.cc
index ea5d2f0510..2d7cccb628 100644
--- a/gtk2_ardour/midi_region_view.cc
+++ b/gtk2_ardour/midi_region_view.cc
@@ -1841,6 +1841,44 @@ MidiRegionView::next_patch (CanvasPatchChange& patch)
 	}
 }
 
+void
+MidiRegionView::previous_bank (CanvasPatchChange& patch)
+{
+	if (patch.patch()->program() < 127) {
+		MIDI::Name::PatchPrimaryKey key;
+		get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
+		if (key.lsb > 0) {
+			key.lsb--;
+			change_patch_change (patch, key);
+		} else {
+			if (key.msb > 0) {
+				key.lsb = 127;
+				key.msb--;
+				change_patch_change (patch, key);
+			}
+		}
+	}
+}
+
+void
+MidiRegionView::next_bank (CanvasPatchChange& patch)
+{
+	if (patch.patch()->program() > 0) {
+		MIDI::Name::PatchPrimaryKey key;
+		get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
+		if (key.lsb < 127) {
+			key.lsb++;
+			change_patch_change (patch, key);
+		} else {
+			if (key.msb < 127) {
+				key.lsb = 0;
+				key.msb++;
+				change_patch_change (patch, key);
+			}
+		}
+	}
+}
+
 void
 MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
 {
@@ -2917,7 +2955,8 @@ void
 MidiRegionView::patch_entered (ArdourCanvas::CanvasPatchChange* ev)
 {
 	ostringstream s;
-	s << ((int) ev->patch()->program() + 1) << ":" << (ev->patch()->bank() + 1);
+	/* XXX should get patch name if we can */
+	s << _("Bank:") << (ev->patch()->bank() + 1) << '\n' << _("Program:") << ((int) ev->patch()->program() + 1);
 	show_verbose_cursor (s.str(), 10, 20);
 }
 
diff --git a/gtk2_ardour/midi_region_view.h b/gtk2_ardour/midi_region_view.h
index 6dfcd08e0b..418cf215b3 100644
--- a/gtk2_ardour/midi_region_view.h
+++ b/gtk2_ardour/midi_region_view.h
@@ -154,6 +154,9 @@ public:
 	 */
 	void next_patch (ArdourCanvas::CanvasPatchChange &);
 
+	void previous_bank (ArdourCanvas::CanvasPatchChange &);
+	void next_bank (ArdourCanvas::CanvasPatchChange &);
+
 	/** Displays all patch change events in the region as flags on the canvas.
 	 */
 	void display_patch_changes();