From cb1f232c390a1e0b96d140c2fdc52b526dc4573f Mon Sep 17 00:00:00 2001
From: John Smith <john.smith7545@yahoo.com>
Date: Fri, 14 Dec 2012 12:17:13 +0900
Subject: Fix for 383871 : Let space switch to selector tool even when used for
 panning

(bzr r11954)
---
 src/event-context.cpp | 70 +++++++++++++++++++++++++++++++++++----------------
 1 file changed, 48 insertions(+), 22 deletions(-)

(limited to 'src/event-context.cpp')

diff --git a/src/event-context.cpp b/src/event-context.cpp
index e9d0aa935..3c1609d97 100644
--- a/src/event-context.cpp
+++ b/src/event-context.cpp
@@ -464,10 +464,23 @@ static gint sp_event_context_private_root_handler(
         break;
     case GDK_MOTION_NOTIFY:
         if (panning) {
+            if (panning == 4 && !xp && !yp ) {
+                // <Space> + mouse panning started, save location and grab canvas
+                xp = event->motion.x;
+                yp = event->motion.y;
+                button_w = Geom::Point(event->motion.x, event->motion.y);
+
+                sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
+                        GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK
+                                | GDK_POINTER_MOTION_MASK
+                                | GDK_POINTER_MOTION_HINT_MASK, NULL,
+                        event->motion.time - 1);
+
+
+            }
             if ((panning == 2 && !(event->motion.state & GDK_BUTTON2_MASK))
-                    || (panning == 1 && !(event->motion.state
-                            & GDK_BUTTON1_MASK)) || (panning == 3
-                    && !(event->motion.state & GDK_BUTTON3_MASK))) {
+                    || (panning == 1 && !(event->motion.state & GDK_BUTTON1_MASK))
+                    || (panning == 3 && !(event->motion.state & GDK_BUTTON3_MASK))) {
                 /* Gdk seems to lose button release for us sometimes :-( */
                 panning = 0;
                 sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
@@ -570,6 +583,7 @@ static gint sp_event_context_private_root_handler(
             }
             ret = TRUE;
         }
+
         break;
     case GDK_KEY_PRESS: {
         double const acceleration = prefs->getDoubleLimited(
@@ -672,15 +686,13 @@ static gint sp_event_context_private_root_handler(
             }
             break;
         case GDK_KEY_space:
-            if (prefs->getBool("/options/spacepans/value")) {
-                event_context->space_panning = true;
-                event_context->_message_context->set(Inkscape::INFORMATION_MESSAGE,
-                        _("<b>Space+mouse drag</b> to pan canvas"));
-                ret = TRUE;
-            } else {
-                sp_toggle_selector(desktop);
-                ret = TRUE;
-            }
+            xp = yp = 0;
+            within_tolerance = true;
+            panning = 4;
+            event_context->space_panning = true;
+            event_context->_message_context->set(Inkscape::INFORMATION_MESSAGE,
+                    _("<b>Space+mouse move</b> to pan canvas"));
+            ret = TRUE;
             break;
         case GDK_KEY_z:
         case GDK_KEY_Z:
@@ -695,18 +707,32 @@ static gint sp_event_context_private_root_handler(
         }
         break;
     case GDK_KEY_RELEASE:
+
+        // Stop panning on any key release
+        if (event_context->space_panning) {
+            event_context->space_panning = false;
+            event_context->_message_context->clear();
+        }
+
+        if (panning) {
+            panning = 0;
+            xp = yp = 0;
+            sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
+                    event->key.time);
+            desktop->updateNow();
+        }
+
+        if (panning_cursor == 1) {
+            panning_cursor = 0;
+            GtkWidget *w = GTK_WIDGET(sp_desktop_canvas(event_context->desktop));
+            gdk_window_set_cursor(gtk_widget_get_window (w), event_context->cursor);
+        }
+
         switch (get_group0_keyval(&event->key)) {
         case GDK_KEY_space:
-            if (event_context->space_panning) {
-                event_context->space_panning = false;
-                event_context->_message_context->clear();
-
-                if (panning == 1) {
-                    panning = 0;
-                    sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
-                            event->key.time);
-                    desktop->updateNow();
-                }
+            if (within_tolerance == true) {
+                // Space was pressed, but not panned
+                sp_toggle_selector(desktop);
                 ret = TRUE;
             }
             break;
-- 
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