From 55d699dace1671675d350836de36dfbc7c1ca79c Mon Sep 17 00:00:00 2001
From: Craig Duquette <cduquette@gmail.com>
Date: Mon, 7 Jan 2008 22:52:21 +0000
Subject: [PATCH] toolbox's icon "fades" to gray when expanding

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=758449
---
 desktoptoolbox.cpp | 21 +++++++++++++++++----
 desktoptoolbox_p.h |  3 ++-
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/desktoptoolbox.cpp b/desktoptoolbox.cpp
index f553d57eb..88c2b448d 100644
--- a/desktoptoolbox.cpp
+++ b/desktoptoolbox.cpp
@@ -39,6 +39,7 @@ static const int ToolName = 7001;
 DesktopToolbox::DesktopToolbox(QGraphicsItem *parent)
     : QGraphicsItem(parent),
       m_icon("plasma"),
+      m_iconSelected("plasma"),
       m_size(50),
       m_showing(false),
       m_animId(0),
@@ -88,13 +89,25 @@ void DesktopToolbox::paint(QPainter *painter, const QStyleOptionGraphicsItem *op
     painter->setBrush(gradient);
     painter->drawPath(p);
     painter->restore();
-    m_icon.paint(painter, QRect(m_size*2 - 34, 2, 32, 32));
+
+    const qreal progress = m_animFrame / m_size;
+
+    if (progress > 0.1) {
+        m_iconSelected.paint(painter, QRect(m_size*2 - 34, 2, 32, 32), Qt::AlignCenter, QIcon::Disabled, QIcon::Off);
+    }
+  
+    if (progress < 0.95) {
+        painter->save();
+        painter->setOpacity(1.0 - m_animFrame / m_size);
+        m_icon.paint(painter, QRect(m_size*2 - 34, 2, 32, 32));
+        painter->restore();
+    }
 }
 
 QPainterPath DesktopToolbox::shape() const
 {
     QPainterPath path;
-    int size = m_size + m_animFrame;
+    int size = m_size + (int)m_animFrame;
     path.moveTo(m_size*2, 0);
     path.arcTo(QRectF(m_size*2 - size, -size, size*2, size*2), 180, 90);
     return path;
@@ -161,9 +174,9 @@ void DesktopToolbox::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
 void DesktopToolbox::animate(qreal progress)
 {
     if (m_showing) {
-        m_animFrame = static_cast<int>(m_size * progress);
+        m_animFrame = m_size * progress;
     } else {
-        m_animFrame = static_cast<int>(m_size * (1.0 - progress));
+        m_animFrame = m_size * (1.0 - progress);
     }
 
     //kDebug(1209) << "animating at" << progress << "for" << m_animFrame;
diff --git a/desktoptoolbox_p.h b/desktoptoolbox_p.h
index d27ef2155..5f57a6bb6 100644
--- a/desktoptoolbox_p.h
+++ b/desktoptoolbox_p.h
@@ -57,11 +57,12 @@ protected slots:
 
 private:
     KIcon m_icon;
+    KIcon m_iconSelected;
     int m_size;
     bool m_hidden;
     bool m_showing;
     Plasma::Phase::AnimId m_animId;
-    int m_animFrame;
+    qreal m_animFrame;
 };
 
 } // Plasma namespace