1 files changed, 107 insertions, 0 deletions
diff --git a/demos/mobile/qcamera/button.cpp b/demos/mobile/qcamera/button.cpp
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+++ b/demos/mobile/qcamera/button.cpp
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+/**
+ * Copyright (c) 2011 Nokia Corporation. All rights reserved.
+ *
+ * Nokia and Nokia Connecting People are registered trademarks of Nokia
+ * Corporation. Oracle and Java are registered trademarks of Oracle and/or its
+ * affiliates. Other product and company names mentioned herein may be
+ * trademarks or trade names of their respective owners.
+ *
+ *
+ * Subject to the conditions below, you may, without charge:
+ *
+ *  *  Use, copy, modify and/or merge copies of this software and associated
+ *     documentation files (the "Software")
+ *
+ *  *  Publish, distribute, sub-licence and/or sell new software derived from
+ *     or incorporating the Software.
+ *
+ *
+ *
+ * This file, unmodified, shall be included with all copies or substantial
+ * portions of the Software that are distributed in source code form.
+ *
+ * The Software cannot constitute the primary value of any new software derived
+ * from or incorporating the Software.
+ *
+ * Any person dealing with the Software shall not misrepresent the source of
+ * the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "button.h"
+#include <QMouseEvent>
+#include <QPainter>
+#include <QTimer>
+
+Button::Button(QWidget *parent, Qt::WindowFlags f) :
+    QLabel(parent, f)
+{
+    m_downPixmap = 0;
+    m_disabled = false;
+}
+
+Button::~Button()
+{
+}
+
+void Button::disableBtn(bool b)
+{
+    m_disabled = b;
+    if (m_disabled) {
+        setPixmap(m_downPixmap);
+    } else {
+        setPixmap(m_upPixmap);
+    }
+}
+
+void Button::mousePressEvent(QMouseEvent *event)
+{
+    if (!m_disabled) {
+        event->accept();
+        setPixmap(m_downPixmap);
+        repaint();
+        // Lift button back to up after 300ms
+        QTimer::singleShot(300, this, SLOT(backToUp()));
+    }
+}
+
+void Button::backToUp()
+{
+    setPixmap(m_upPixmap);
+    repaint();
+    emit pressed();
+}
+
+void Button::setPixmap(const QPixmap& p)
+{
+    // Set up and down picture for the button
+    // Set pixmap
+    if (!p.isNull())
+        QLabel::setPixmap(p);
+
+    // Make down pixmap if it does not exists
+    if (m_downPixmap.isNull()) {
+        // Store up pixmap
+        m_upPixmap = *pixmap();
+
+        // Create down pixmap
+        // Make m_downPixmap as a transparent m_upPixmap
+        QPixmap transparent(m_upPixmap.size());
+        transparent.fill(Qt::transparent);
+        QPainter painter(&transparent);
+        painter.setCompositionMode(QPainter::CompositionMode_Source);
+        painter.drawPixmap(0, 0, m_upPixmap);
+        painter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
+        painter.fillRect(transparent.rect(), QColor(0, 0, 0, 150));
+        painter.end();
+        m_downPixmap = transparent;
+    }
+
+}