GTK: Add shortcuts for changing selection mode

Now when the graph has focus, shift+n will choose node selection,
shift+e edge selection and shift+b both.

4 files changed, 34 insertions, 7 deletions

diff --git a/tikzit/src/gtk/Application.h b/tikzit/src/gtk/Application.h
index b364c5e..e82d2b1 100644
--- a/tikzit/src/gtk/Application.h
+++ b/tikzit/src/gtk/Application.h
@@ -150,7 +150,10 @@ extern Application* app;
  */
 - (void) saveConfiguration;
 
-- (void) activateToolForKey:(unsigned int)keyVal withMask:(InputMask)mask;
+/**
+ * @result YES if key event was processed, NO otherwise
+ */
+- (BOOL) activateToolForKey:(unsigned int)keyVal withMask:(InputMask)mask;
 
 @end
 
diff --git a/tikzit/src/gtk/Application.m b/tikzit/src/gtk/Application.m
index 4c696a2..bfde140 100644
--- a/tikzit/src/gtk/Application.m
+++ b/tikzit/src/gtk/Application.m
@@ -209,7 +209,7 @@ Application* app = nil;
     }
 }
 
-- (void) activateToolForKey:(unsigned int)keyVal withMask:(InputMask)mask {
+- (BOOL) activateToolForKey:(unsigned int)keyVal withMask:(InputMask)mask {
     // FIXME: cache the accel info, rather than reparsing it every time?
     for (id<Tool> tool in tools) {
         guint toolKey = 0;
@@ -217,9 +217,10 @@ Application* app = nil;
         gtk_accelerator_parse ([[tool shortcut] UTF8String], &toolKey, &toolMod);
         if (toolKey != 0 && toolKey == keyVal && (int)mask == (int)toolMod) {
             [self setActiveTool:tool];
-            return;
+            return YES;
         }
     }
+    return NO;
 }
 
 - (void) _addWindow:(Window*)window {
diff --git a/tikzit/src/gtk/GraphEditorPanel.m b/tikzit/src/gtk/GraphEditorPanel.m
index 4c7312a..553f261 100644
--- a/tikzit/src/gtk/GraphEditorPanel.m
+++ b/tikzit/src/gtk/GraphEditorPanel.m
@@ -176,10 +176,21 @@
 }
 
 - (void) keyPressed:(unsigned int)keyVal withMask:(InputMask)mask {
-    [app activateToolForKey:keyVal withMask:mask];
+    if (![app activateToolForKey:keyVal withMask:mask]) {
+        id<Tool> tool = [panel activeTool];
+        if ([panel hasTool] && [tool respondsToSelector:@selector(keyPressed:withMask:)]) {
+            [tool keyPressed:keyVal withMask:mask];
+        }
+    }
 }
 
 - (void) keyReleased:(unsigned int)keyVal withMask:(InputMask)mask {
+    if (![app activateToolForKey:keyVal withMask:mask]) {
+        id<Tool> tool = [panel activeTool];
+        if ([panel hasTool] && [tool respondsToSelector:@selector(keyReleased:withMask:)]) {
+            [tool keyReleased:keyVal withMask:mask];
+        }
+    }
 }
 @end
 
diff --git a/tikzit/src/gtk/SelectTool.m b/tikzit/src/gtk/SelectTool.m
index 6f3ceeb..d5c482f 100644
--- a/tikzit/src/gtk/SelectTool.m
+++ b/tikzit/src/gtk/SelectTool.m
@@ -23,6 +23,8 @@
 #import "TikzDocument.h"
 #import "tzstockitems.h"
 
+#import <gdk/gdkkeysyms.h>
+
 #define DRAG_SELECT_MODE_KEY "tikzit-drag-select-mode"
 
 static const InputMask unionSelectMask = ShiftMask;
@@ -73,7 +75,7 @@ static void drag_select_mode_cb (GtkToggleButton *button, SelectTool *tool);
                             FALSE,
                             0);
 
-        GtkWidget *nodeOpt = gtk_radio_button_new_with_label (NULL, "nodes");
+        GtkWidget *nodeOpt = gtk_radio_button_new_with_label (NULL, "nodes (N)");
         g_object_set_data (G_OBJECT (nodeOpt),
                            DRAG_SELECT_MODE_KEY,
                            (gpointer)DragSelectsNodes);
@@ -89,7 +91,7 @@ static void drag_select_mode_cb (GtkToggleButton *button, SelectTool *tool);
 
         GtkWidget *edgeOpt = gtk_radio_button_new_with_label (
                 gtk_radio_button_get_group (GTK_RADIO_BUTTON (nodeOpt)),
-                "edges");
+                "edges (E)");
         g_object_set_data (G_OBJECT (edgeOpt),
                            DRAG_SELECT_MODE_KEY,
                            (gpointer)DragSelectsEdges);
@@ -105,7 +107,7 @@ static void drag_select_mode_cb (GtkToggleButton *button, SelectTool *tool);
 
         GtkWidget *bothOpt = gtk_radio_button_new_with_label (
                 gtk_radio_button_get_group (GTK_RADIO_BUTTON (edgeOpt)),
-                "both");
+                "both (B)");
         g_object_set_data (G_OBJECT (bothOpt),
                            DRAG_SELECT_MODE_KEY,
                            (gpointer)DragSelectsBoth);
@@ -359,6 +361,16 @@ static void drag_select_mode_cb (GtkToggleButton *button, SelectTool *tool);
     }
 }
 
+- (void) keyPressed:(unsigned int)keyVal withMask:(InputMask)mask {
+    if (keyVal == GDK_KEY_N && mask == ShiftMask) {
+        [self setDragSelectMode:DragSelectsNodes];
+    } else if (keyVal == GDK_KEY_E && mask == ShiftMask) {
+        [self setDragSelectMode:DragSelectsEdges];
+    } else if (keyVal == GDK_KEY_B && mask == ShiftMask) {
+        [self setDragSelectMode:DragSelectsBoth];
+    }
+}
+
 - (void) renderWithContext:(id<RenderContext>)context onSurface:(id<Surface>)surface {
     if (!NSIsEmptyRect (selectionBox)) {
         [context saveState];