1 files changed, 116 insertions, 0 deletions
diff --git a/src/progressdlg.cpp b/src/progressdlg.cpp
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+++ b/src/progressdlg.cpp
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+/***************************************************************************
+ *
+ * Copyright (C) 2005 Elad Lahav (elad_lahav@users.sourceforge.net)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ***************************************************************************/
+
+#include "progressdlg.h"
+
+/**
+ * Class constructor.
+ * @param	sCaption	The dialogue's title
+ * @param	sText		The text to display
+ * @param	pParent		The parent widget
+ * @param	szName		The widget's name
+ */
+ProgressDlg::ProgressDlg(const QString& sCaption, const QString& sText,
+	QWidget* pParent, const char* szName) :
+	KProgressDialog(pParent, szName, sCaption, sText, true),
+	m_nIdleValue(-1)
+{
+	setAutoClose(false);
+	setAllowCancel(false);
+	
+	// Create the idle-progress timer
+	m_pIdleTimer = new QTimer(this);
+
+	// Display a busy indicator by increasing the value of the idle counter
+	connect (m_pIdleTimer, SIGNAL(timeout()), this, SLOT(slotShowBusy()));
+}
+
+/**
+ * Class destructor.
+ */
+ProgressDlg::~ProgressDlg()
+{
+}
+
+/**
+ * Sets a new value to the progress bar.
+ * If the new value is non-zero, the progress bar is advanced. Otherwise, the
+ * idle timer is initiated to display a busy indicator.
+ * @param	nValue	The new value to set.
+ */
+void ProgressDlg::setValue(int nValue)
+{
+	KProgress* pProgress;
+
+	pProgress = progressBar();
+	
+	if (nValue != 0) {
+		// Do nothing if the value hasn't changed
+		if (nValue == pProgress->progress())
+			return;
+
+		// Handle first non-zero value
+		if (m_nIdleValue >= 0) {
+			m_pIdleTimer->stop();
+			m_nIdleValue = -1;
+			pProgress->setPercentageVisible(true);
+		}
+
+		// Set the new value
+		pProgress->setValue(nValue);
+	}
+	else if (m_nIdleValue == -1) {
+		// Handle first 0 value
+		pProgress->setValue(0);
+		pProgress->setPercentageVisible(false);
+		m_nIdleValue = 0;
+		m_pIdleTimer->start(200);
+	}
+}
+
+void ProgressDlg::setIdle()
+{
+	m_nIdleValue = -1;
+	setValue(0);
+}
+
+/**
+ * Increaes the value of the dummy counter by 1.
+ * This slot is called by the timeout() event of the idle timer.
+ */
+void ProgressDlg::slotShowBusy()
+{
+	// Increase the counter
+	m_nIdleValue += 5;
+	if (m_nIdleValue == 100)
+		m_nIdleValue = 0;
+		
+	// Set the value of the progress-bar
+	progressBar()->setValue(m_nIdleValue);
+}
+
+#include "progressdlg.moc"