1 files changed, 75 insertions, 0 deletions
diff --git a/tikzit/src/gtk/HandTool.m b/tikzit/src/gtk/HandTool.m
new file mode 100644
index 0000000..830fc28
--- /dev/null
+++ b/tikzit/src/gtk/HandTool.m
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2011-2012  Alex Merry <alex.merry@kdemail.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import "HandTool.h"
+
+#import "GraphRenderer.h"
+#import "TikzDocument.h"
+#import "tzstockitems.h"
+
+@implementation HandTool
+- (NSString*) name { return @"Drag Tool"; }
+- (const gchar*) stockIcon { return TIKZIT_STOCK_DRAG; }
+- (NSString*) helpText { return @"Move the diagram to view different parts"; }
+- (NSString*) shortcut { return @"m"; }
+@synthesize activeRenderer=renderer;
+
++ (id) tool {
+    return [[[self alloc] init] autorelease];
+}
+
+- (id) init {
+    return [super init];
+}
+
+- (void) dealloc {
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+
+    [renderer release];
+
+    [super dealloc];
+}
+
+- (GtkWidget*) configurationWidget { return NULL; }
+
+- (void) mousePressAt:(NSPoint)pos withButton:(MouseButton)button andMask:(InputMask)mask {
+    if (button != LeftButton)
+        return;
+
+    dragOrigin = pos;
+    oldGraphOrigin = [[renderer transformer] origin];
+}
+
+- (void) mouseMoveTo:(NSPoint)pos withButtons:(MouseButton)buttons andMask:(InputMask)mask {
+    if (!(buttons & LeftButton))
+        return;
+
+    NSPoint newGraphOrigin = oldGraphOrigin;
+    newGraphOrigin.x += pos.x - dragOrigin.x;
+    newGraphOrigin.y += pos.y - dragOrigin.y;
+    [[renderer transformer] setOrigin:newGraphOrigin];
+    [renderer invalidateGraph];
+}
+
+- (void) mouseReleaseAt:(NSPoint)pos withButton:(MouseButton)button andMask:(InputMask)mask {}
+
+- (void) renderWithContext:(id<RenderContext>)context onSurface:(id<Surface>)surface {}
+- (void) loadConfiguration:(Configuration*)config {}
+- (void) saveConfiguration:(Configuration*)config {}
+@end
+
+// vim:ft=objc:ts=8:et:sts=4:sw=4