From da88f5f0bb5e73bc69bf7ed3962691622b1ae4f9 Mon Sep 17 00:00:00 2001
From: Manjeet Dahiya <manjeetdahiya@gmail.com>
Date: Wed, 8 Sep 2010 09:23:18 +0000
Subject: add Gui Client example

---
 examples/GuiClient/statusTextWidget.cpp | 144 ++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 examples/GuiClient/statusTextWidget.cpp

(limited to 'examples/GuiClient/statusTextWidget.cpp')

diff --git a/examples/GuiClient/statusTextWidget.cpp b/examples/GuiClient/statusTextWidget.cpp
new file mode 100644
index 00000000..c268dd3f
--- /dev/null
+++ b/examples/GuiClient/statusTextWidget.cpp
@@ -0,0 +1,144 @@
+#include "statusTextWidget.h"
+#include <QHBoxLayout>
+#include <QMenu>
+
+#include <QtGui/QStyle>
+#include <QtGui/QStyleOptionFrameV2>
+
+QSize statusLineEdit::sizeHint() const
+{
+    QFont font;
+    QFontMetrics fm(font);
+    int width = fm.width(text());
+    if(width <= (160 - 8))
+        return QSize(width+8, 18);
+    else
+        return QSize(160, 18);
+}
+
+void statusLineEditButton::paintEvent(QPaintEvent* event)
+{
+    Q_UNUSED(event);
+    QPainter painter(this);
+
+    QStyleOptionButton panel;
+    initStyleOption(&panel);
+    QRect r = style()->subElementRect(QStyle::SE_PushButtonFocusRect, &panel, this);
+
+    QImage image(":/icons/resource/downArrow.png");
+    QRect rectDelta(0, 0, 7, 4);
+    rectDelta.moveCenter(r.center());
+    painter.drawImage(rectDelta, image);
+}
+
+void statusLineEdit::focusInEvent(QFocusEvent* event)
+{
+    QLineEdit::focusInEvent(event);
+    QLineEdit::selectAll();
+}
+
+void statusLineEdit::mousePressEvent(QMouseEvent* event)
+{
+    QLineEdit::mousePressEvent(event);
+    QLineEdit::selectAll();
+}
+
+statusTextWidget::statusTextWidget(QWidget* parent) : QWidget(parent),
+        m_statusLineEdit(0), m_statusButton(0), m_clearStatusTextHistory("Clear Status Message", this)
+{
+    m_statusLineEdit = new statusLineEdit(this);
+    QHBoxLayout* layout = new QHBoxLayout;
+    layout->addWidget(m_statusLineEdit);
+    layout->setSpacing(0);
+    layout->setContentsMargins(0, 0, 0, 0);
+    m_statusButton = new statusLineEditButton(this);
+    layout->addWidget(m_statusButton);
+    setLayout(layout);
+
+    bool check = connect(m_statusButton, SIGNAL(clicked(bool)), SLOT(showMenu()));
+    Q_ASSERT(check);
+    check = connect(m_statusLineEdit, SIGNAL(textChanged(const QString&)), SLOT(textChanged()));
+    Q_ASSERT(check);
+    check = connect(m_statusLineEdit, SIGNAL(editingFinished()), SLOT(statusTextChanged_helper()));
+    Q_ASSERT(check);
+    check = connect(&m_clearStatusTextHistory, SIGNAL(triggered()), SLOT(clearStatusTextHistory()));
+    Q_ASSERT(check);
+}
+
+void statusTextWidget::showMenu()
+{
+    QMenu menu(this);
+
+    int size = m_statusTextActionList.size();
+    for(int i = 0; i < size; ++i)
+    {
+        menu.addAction(m_statusTextActionList.at(size - 1 - i));
+    }
+
+    menu.addSeparator();
+    menu.addAction(&m_clearStatusTextHistory);
+    m_clearStatusTextHistory.setDisabled(size == 0);
+    menu.exec(m_statusLineEdit->mapToGlobal(QPoint(0, m_statusLineEdit->height())));
+}
+
+void statusTextWidget::textChanged()
+{
+    m_statusLineEdit->updateGeometry();
+}
+
+void statusTextWidget::statusTextChanged_helper()
+{
+    addStatusTextToList(m_statusLineEdit->text());
+    emit statusTextChanged(m_statusLineEdit->text());
+    parentWidget()->setFocus();
+}
+
+void statusTextWidget::setStatusText(const QString& statusText)
+{
+    m_statusLineEdit->setText(statusText);
+}
+
+void statusTextWidget::addStatusTextToList(const QString& status)
+{
+    for(int i = 0; i < m_statusTextActionList.size(); ++i)
+    {
+        if(m_statusTextActionList.at(i)->data().toString() == status)
+        {
+            QAction* action = m_statusTextActionList.takeAt(i);
+            m_statusTextActionList.append(action);
+            return;
+        }
+    }
+
+    QAction* action = new QAction(status, this);
+    action->setData(status);
+    bool check = connect(action, SIGNAL(triggered()), SLOT(statusTextChanged_menuClick()));
+    Q_ASSERT(check);
+    m_statusTextActionList.append(action);
+}
+
+void statusTextWidget::statusTextChanged_menuClick()
+{
+    QAction* action = qobject_cast<QAction*>(sender());
+    if(action)
+    {
+        int i = 0;
+        while(i < m_statusTextActionList.size() && action != m_statusTextActionList.at(i))
+        {
+            ++i;
+        }
+
+        if(action == m_statusTextActionList.at(i))
+        {
+            m_statusTextActionList.removeAt(i);
+            m_statusTextActionList.append(action);
+        }
+        m_statusLineEdit->setText(action->data().toString());
+        emit statusTextChanged(action->data().toString());
+    }
+}
+
+void statusTextWidget::clearStatusTextHistory()
+{
+    emit statusTextChanged("");
+}
-- 
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