allow to disable the preview of the Information Panel

[dolphin.git] / src / selectiontoggle.cpp

diff --git a/src/selectiontoggle.cpp b/src/selectiontoggle.cpp
index 7a3f0ef567a1f1442cfa59c021881b41b8e2e077..5c573811e7654c8a352607e6f4f61961cb7ad444 100644 (file)
--- a/src/selectiontoggle.cpp
+++ b/src/selectiontoggle.cpp
@@ -19,9 +19,11 @@
 
 #include "selectiontoggle.h"
 
+#include <kglobalsettings.h>
 #include <kicon.h>
 #include <kiconloader.h>
 #include <kiconeffect.h>
+#include <klocale.h>
 
 #include <QPainter>
 #include <QPaintEvent>
@@ -32,15 +34,19 @@
 SelectionToggle::SelectionToggle(QWidget* parent) :
     QAbstractButton(parent),
     m_isHovered(false),
+    m_leftMouseButtonPressed(false),
     m_fadingValue(0),
     m_icon(),
     m_fadingTimeLine(0)
 {
+    setFocusPolicy(Qt::NoFocus);
     parent->installEventFilter(this);
     resize(sizeHint());
-    m_icon = KIconLoader::global()->loadIcon("dialog-ok",
-                                             KIconLoader::NoGroup,
-                                             KIconLoader::SizeSmall);
+    setIconOverlay(isChecked());
+    connect(this, SIGNAL(toggled(bool)),
+            this, SLOT(setIconOverlay(bool)));
+    connect(KGlobalSettings::self(), SIGNAL(iconChanged(int)),
+            this, SLOT(refreshIcon()));
 }
 
 SelectionToggle::~SelectionToggle()
@@ -54,21 +60,21 @@ QSize SelectionToggle::sizeHint() const
 
 void SelectionToggle::reset()
 {
-    m_item = KFileItem();
+    m_url = KUrl();
     hide();
 }
 
-void SelectionToggle::setFileItem(const KFileItem& item)
+void SelectionToggle::setUrl(const KUrl& url)
 {
-    m_item = item;
-    if (!item.isNull()) {
+    m_url = url;
+    if (!url.isEmpty()) {
         startFading();
     }
 }
 
-KFileItem SelectionToggle::fileItem() const
+KUrl SelectionToggle::url() const
 {
-    return m_item;
+    return m_url;
 }
 
 void SelectionToggle::setVisible(bool visible)
@@ -84,9 +90,27 @@ void SelectionToggle::setVisible(bool visible)
 
 bool SelectionToggle::eventFilter(QObject* obj, QEvent* event)
 {
-    if ((obj == parent()) && (event->type() == QEvent::Leave)) {
-        hide();
+    if (obj == parent()) {
+        switch (event->type()) {
+        case QEvent::Leave:
+            hide();
+            break;
+
+        case QEvent::MouseMove:
+            if (m_leftMouseButtonPressed) {
+                // Don't forward mouse move events to the viewport,
+                // otherwise a rubberband selection will be shown when
+                // clicking on the selection toggle and moving the mouse
+                // above the viewport.
+                return true;
+            }
+            break;
+
+        default:
+            break;
+        }
     }
+
     return QAbstractButton::eventFilter(obj, event);
 }
 
@@ -101,6 +125,8 @@ void SelectionToggle::enterEvent(QEvent* event)
         m_fadingTimeLine->stop();
     }
     m_fadingValue = 255;
+    setToolTip(isChecked() ? i18nc("@info:tooltip", "Deselect Item") :
+                             i18nc("@info:tooltip", "Select Item"));
     update();
 }
 
@@ -111,11 +137,40 @@ void SelectionToggle::leaveEvent(QEvent* event)
     update();
 }
 
+void SelectionToggle::mousePressEvent(QMouseEvent* event)
+{
+    QAbstractButton::mousePressEvent(event);
+    m_leftMouseButtonPressed = (event->buttons() & Qt::LeftButton);
+}
+
+void SelectionToggle::mouseReleaseEvent(QMouseEvent* event)
+{
+    QAbstractButton::mouseReleaseEvent(event);
+    m_leftMouseButtonPressed = (event->buttons() & Qt::LeftButton);
+}
+
 void SelectionToggle::paintEvent(QPaintEvent* event)
 {
     QPainter painter(this);
     painter.setClipRect(event->rect());
+    painter.setRenderHint(QPainter::Antialiasing);
+
+    // draw an alpha blended circle as background
+    const QPalette& palette = parentWidget()->palette();
+
+    const QBrush& backgroundBrush = palette.brush(QPalette::Normal, QPalette::Window);
+    QColor background = backgroundBrush.color();
+    background.setAlpha(m_fadingValue / 2);
+    painter.setBrush(background);
 
+    const QBrush& foregroundBrush = palette.brush(QPalette::Normal, QPalette::WindowText);
+    QColor foreground = foregroundBrush.color();
+    foreground.setAlpha(m_fadingValue / 4);
+    painter.setPen(foreground);
+
+    painter.drawEllipse(0, 0, width(), height());
+
+    // draw the icon overlay
     if (m_isHovered) {
         KIconEffect iconEffect;
         QPixmap activeIcon = iconEffect.apply(m_icon, KIconLoader::Desktop, KIconLoader::ActiveState);
@@ -146,11 +201,28 @@ void SelectionToggle::setFadingValue(int value)
     update();
 }
 
+void SelectionToggle::setIconOverlay(bool checked)
+{
+    const char* icon = checked ? "list-remove" : "list-add";
+    m_icon = KIconLoader::global()->loadIcon(icon,
+                                             KIconLoader::NoGroup,
+                                             KIconLoader::SizeSmall);
+    update();
+}
+
+void SelectionToggle::refreshIcon()
+{
+    setIconOverlay(isChecked());
+}
+
 void SelectionToggle::startFading()
 {
     Q_ASSERT(m_fadingTimeLine == 0);
 
-    m_fadingTimeLine = new QTimeLine(2000, this);
+    const bool animate = KGlobalSettings::graphicEffectsLevel() & KGlobalSettings::SimpleAnimationEffects;
+    const int duration = animate ? 600 : 1;
+
+    m_fadingTimeLine = new QTimeLine(duration, this);
     connect(m_fadingTimeLine, SIGNAL(frameChanged(int)),
             this, SLOT(setFadingValue(int)));
     m_fadingTimeLine->setFrameRange(0, 255);