From a166f48ccce0d624aed6a633053963f8f8db19f8 Mon Sep 17 00:00:00 2001
From: Percy Leonhardt <percy@eris23.de>
Date: Fri, 23 Nov 2007 08:01:29 +0000
Subject: [PATCH] Support resizing of applet while handle is visible.

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=740406
---
 applethandle.cpp | 59 ++++++++++++++++++++++++++++--------------------
 applethandle_p.h |  2 ++
 containment.cpp  |  2 ++
 3 files changed, 39 insertions(+), 24 deletions(-)

diff --git a/applethandle.cpp b/applethandle.cpp
index 3c0d7b925..0455d05f4 100644
--- a/applethandle.cpp
+++ b/applethandle.cpp
@@ -50,32 +50,9 @@ AppletHandle::AppletHandle(Containment *parent, Applet *applet)
 {
     KColorScheme colors(QPalette::Active, KColorScheme::View, Theme::self()->colors());
     m_gradientColor = colors.background(KColorScheme::NormalBackground).color();
-
     m_originalMatrix = m_applet->transform();
-    m_rect = m_applet->boundingRect();
-    m_rect = m_applet->mapToParent(m_rect).boundingRect();
-
-    const int requiredHeight = (HANDLE_WIDTH * 2) + m_applet->hasConfigurationInterface() 
-                                                    ? ((ICON_SIZE + ICON_MARGIN) * 4)
-                                                    : ((ICON_SIZE + ICON_MARGIN) * 3)
-                                                  + ICON_MARGIN; // that last margin is blank space before the close button
-    if (m_rect.height() < requiredHeight) {
-        float delta = requiredHeight - m_rect.height();
-        delta = delta/2.0;
-        if (delta > 0.0) {
-            m_rect.adjust(0.0, -delta, 0.0, delta);
-        }
-    }
-
-    m_rect.adjust(-HANDLE_WIDTH, -HANDLE_WIDTH, HANDLE_WIDTH, HANDLE_WIDTH);
-
-    if (m_applet->pos().x() <= ((HANDLE_WIDTH * 2) + ICON_SIZE)) {
-        m_rect.adjust(0.0, 0.0, ICON_SIZE, 0.0);
-        m_buttonsOnRight = true;
-    } else {
-        m_rect.adjust(- ICON_SIZE, 0.0, 0.0, 0.0);
-    }
 
+    calculateSize();
     m_applet->setParentItem(this);
     connect(m_applet, SIGNAL(destroyed(QObject*)), this, SLOT(appletDestroyed()));
     setAcceptsHoverEvents(true);
@@ -332,6 +309,13 @@ void AppletHandle::appletDestroyed()
     deleteLater();
 }
 
+void AppletHandle::appletResized()
+{
+    prepareGeometryChange();
+    calculateSize();
+    update();
+}
+
 void AppletHandle::startFading(FadeType anim)
 {
     if (m_animId!=0) {
@@ -358,6 +342,33 @@ void AppletHandle::forceDisappear()
     startFading(FadeOut);
 }
 
+void AppletHandle::calculateSize()
+{
+    m_rect = m_applet->boundingRect();
+    m_rect = m_applet->mapToParent(m_rect).boundingRect();
+
+    const int requiredHeight = (HANDLE_WIDTH * 2) + m_applet->hasConfigurationInterface()
+                                                    ? ((ICON_SIZE + ICON_MARGIN) * 4)
+                                                    : ((ICON_SIZE + ICON_MARGIN) * 3)
+                                                  + ICON_MARGIN; // that last margin is blank space before the close button
+    if (m_rect.height() < requiredHeight) {
+        float delta = requiredHeight - m_rect.height();
+        delta = delta/2.0;
+        if (delta > 0.0) {
+            m_rect.adjust(0.0, -delta, 0.0, delta);
+        }
+    }
+
+    m_rect.adjust(-HANDLE_WIDTH, -HANDLE_WIDTH, HANDLE_WIDTH, HANDLE_WIDTH);
+
+    if (m_applet->pos().x() <= ((HANDLE_WIDTH * 2) + ICON_SIZE)) {
+        m_rect.adjust(0.0, 0.0, ICON_SIZE, 0.0);
+        m_buttonsOnRight = true;
+    } else {
+        m_rect.adjust(- ICON_SIZE, 0.0, 0.0, 0.0);
+    }
+}
+
 }
 
 #include "applethandle_p.moc"
diff --git a/applethandle_p.h b/applethandle_p.h
index 6e0021b8b..e6ca2a167 100644
--- a/applethandle_p.h
+++ b/applethandle_p.h
@@ -59,6 +59,7 @@ class AppletHandle : public QObject, public QGraphicsItem
     private Q_SLOTS:
         void fadeAnimation(qreal progress);
         void appletDestroyed();
+        void appletResized();
 
     private:
         static const int HANDLE_WIDTH = 5;
@@ -67,6 +68,7 @@ class AppletHandle : public QObject, public QGraphicsItem
 
         void startFading(FadeType anim);
         void forceDisappear();
+        void calculateSize();
         ButtonType mapToButton(const QPointF &point) const;
 
         QRectF m_rect;
diff --git a/containment.cpp b/containment.cpp
index fc1199d00..6eca42b00 100644
--- a/containment.cpp
+++ b/containment.cpp
@@ -613,6 +613,8 @@ bool Containment::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
             d->handles[applet] = handle;
             connect(handle, SIGNAL(disappearDone(AppletHandle*)),
                     this, SLOT(handleDisappeared(AppletHandle*)));
+            connect(applet, SIGNAL(geometryChanged()),
+                    handle, SLOT(appletResized()));
         }
         break;
     default: