From d2174ac16313900853b5b9bc82b6227fc348e2a6 Mon Sep 17 00:00:00 2001
From: buliabyak <buliabyak@users.sourceforge.net>
Date: Tue, 30 Oct 2007 18:10:41 +0000
Subject: [PATCH] add alt dragging for no change mode

---
 src/ui/widget/rotateable.cpp     | 28 +++++++++++++++++++---------
 src/ui/widget/selected-style.cpp | 18 +++++++++++++-----
 2 files changed, 32 insertions(+), 14 deletions(-)

diff --git a/src/ui/widget/rotateable.cpp b/src/ui/widget/rotateable.cpp
index 9941c10f8..8cc3c88e9 100644
--- a/src/ui/widget/rotateable.cpp
+++ b/src/ui/widget/rotateable.cpp
@@ -50,25 +50,35 @@ bool Rotateable::on_click(GdkEventButton *event) {
 
 guint Rotateable::get_single_modifier(guint old, guint state) {
 
-		if (old == 0) {
+		if (old == 0 || old == 3) {
         if (state & GDK_CONTROL_MASK)
             return 1; // ctrl
         if (state & GDK_SHIFT_MASK)
             return 2; // shift
+        if (state & GDK_MOD1_MASK)
+            return 3; // alt
         return 0;
 		} else {
-        if (!(state & GDK_CONTROL_MASK) && !(state & GDK_SHIFT_MASK))
-            return 0; // none
-        if (old == 1) 
+        if (!(state & GDK_CONTROL_MASK) && !(state & GDK_SHIFT_MASK)) {
+            if (state & GDK_MOD1_MASK)
+                return 3; // alt
+            else
+                return 0; // none
+        }
+        if (old == 1) {
             if (state & GDK_SHIFT_MASK && !(state & GDK_CONTROL_MASK))
                 return 2; // shift
-            else 
-                return 1;
-        if (old == 2) 
+            if (state & GDK_MOD1_MASK && !(state & GDK_CONTROL_MASK))
+               return 3; // alt
+            return 1;
+        }
+        if (old == 2) {
             if (state & GDK_CONTROL_MASK && !(state & GDK_SHIFT_MASK))
                 return 1; // ctrl
-            else 
-                return 2;
+            if (state & GDK_MOD1_MASK && !(state & GDK_SHIFT_MASK))
+               return 3; // alt
+            return 2;
+        }
         return old;
 		}
 }
diff --git a/src/ui/widget/selected-style.cpp b/src/ui/widget/selected-style.cpp
index 3c996f665..6db4cb45c 100644
--- a/src/ui/widget/selected-style.cpp
+++ b/src/ui/widget/selected-style.cpp
@@ -1218,7 +1218,7 @@ RotateableSwatch::do_motion(double by, guint modifier) {
     if (parent->_mode[fillstroke] != SS_COLOR) 
         return;
 
-    if (!cr_set) {
+    if (!cr_set && modifier != 3) {
         GtkWidget *w = GTK_WIDGET(gobj());
 
         GdkBitmap *bitmap = NULL;
@@ -1251,9 +1251,14 @@ RotateableSwatch::do_motion(double by, guint modifier) {
     }
 
     float hsl[3];
-    double diff = color_adjust(hsl, by, cc, modifier);
+    double diff = 0;
+    if (modifier != 3) {
+        diff = color_adjust(hsl, by, cc, modifier);
+    }
 
-    if (modifier == 2) { // saturation
+    if (modifier == 3) { // do nothing
+
+    } else if (modifier == 2) { // saturation
         sp_document_maybe_done (sp_desktop_document(parent->getDesktop()), undokey, 
                                 SP_VERB_DIALOG_FILL_STROKE, ("Adjust saturation"));
         double ch = hsl[1];
@@ -1279,7 +1284,9 @@ RotateableSwatch::do_release(double by, guint modifier) {
         return;
 
     float hsl[3];
-    color_adjust(hsl, by, startcolor, modifier);
+    if (modifier != 3) {
+        color_adjust(hsl, by, startcolor, modifier);
+    }
 
     if (cr_set) {
         GtkWidget *w = GTK_WIDGET(gobj());
@@ -1291,7 +1298,8 @@ RotateableSwatch::do_release(double by, guint modifier) {
         cr_set = false;
     }
 
-    if (modifier == 2) { // saturation
+    if (modifier == 3) { // nothing
+    } else if (modifier == 2) { // saturation
         sp_document_maybe_done (sp_desktop_document(parent->getDesktop()), undokey, 
                                 SP_VERB_DIALOG_FILL_STROKE, ("Adjust saturation"));
 
-- 
2.30.2