1 files changed, 239 insertions, 0 deletions
diff --git a/kalarm/lib/colourcombo.cpp b/kalarm/lib/colourcombo.cpp
new file mode 100644
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+++ b/kalarm/lib/colourcombo.cpp
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+/*
+ *  colourcombo.cpp  -  colour selection combo box
+ *  Program:  kalarm
+ *  Copyright (c) 2001 - 2003, 2005 by David Jarvie <software@astrojar.org.uk>
+ *
+ *  Some code taken from kdelibs/kdeui/kcolorcombo.cpp in the KDE libraries:
+ *  Copyright (C) 1997 Martin Jones (mjones@kde.org)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <qpainter.h>
+
+#include <klocale.h>
+#include <kcolordialog.h>
+
+#include "preferences.h"
+#include "colourcombo.moc"
+
+
+ColourCombo::ColourCombo(QWidget* parent, const char* name, const QColor& defaultColour)
+	: QComboBox(parent, name),
+	  mColourList(Preferences::messageColours()),
+	  mSelectedColour(defaultColour),
+	  mCustomColour(255, 255, 255),
+	  mReadOnly(false),
+	  mDisabled(false)
+{
+	addColours();
+	connect(this, SIGNAL(activated(int)), SLOT(slotActivated(int)));
+	connect(this, SIGNAL(highlighted(int)), SLOT(slotHighlighted(int)));
+	Preferences::connect(SIGNAL(preferencesChanged()), this, SLOT(slotPreferencesChanged()));
+}
+
+void ColourCombo::setColour(const QColor& colour)
+{
+	mSelectedColour = colour;
+	addColours();
+}
+
+/******************************************************************************
+*  Set a new colour selection.
+*/
+void ColourCombo::setColours(const ColourList& colours)
+{
+	mColourList = colours;
+	if (mSelectedColour != mCustomColour
+	&&  !mColourList.contains(mSelectedColour))
+	{
+		// The current colour has been deleted
+		mSelectedColour = mColourList.count() ? mColourList.first() : mCustomColour;
+	}
+	addColours();
+}
+
+/******************************************************************************
+*  Called when the user changes the preference settings.
+*  If the colour list has changed, update the colours displayed.
+*/
+void ColourCombo::slotPreferencesChanged()
+{
+	const ColourList& prefColours = Preferences::messageColours();
+	if (prefColours != mColourList)
+		setColours(prefColours);      // update the display with the new colours
+}
+
+/******************************************************************************
+*  Enable or disable the control.
+*  If it is disabled, its colour is set to the dialog background colour.
+*/
+void ColourCombo::setEnabled(bool enable)
+{
+	if (enable  &&  mDisabled)
+	{
+		mDisabled = false;
+		setColour(mSelectedColour);
+	}
+	else if (!enable  &&  !mDisabled)
+	{
+		mSelectedColour = color();
+		int end = count();
+		if (end > 1)
+		{
+			// Add a dialog background colour item
+			QPixmap pm = *pixmap(1);
+			pm.fill(paletteBackgroundColor());
+			insertItem(pm);
+			setCurrentItem(end);
+		}
+		mDisabled = true;
+	}
+	QComboBox::setEnabled(enable);
+}
+
+void ColourCombo::slotActivated(int index)
+{
+	if (index)
+		mSelectedColour = mColourList[index - 1];
+	else
+	{
+		if (KColorDialog::getColor(mCustomColour, this) == QDialog::Accepted)
+		{
+			QRect rect;
+			drawCustomItem(rect, false);
+		}
+		mSelectedColour = mCustomColour;
+	}
+	emit activated(mSelectedColour);
+}
+
+void ColourCombo::slotHighlighted(int index)
+{
+	mSelectedColour = index ? mColourList[index - 1] : mCustomColour;
+	emit highlighted(mSelectedColour);
+}
+
+/******************************************************************************
+*  Initialise the items in the combo box to one for each colour in the list.
+*/
+void ColourCombo::addColours()
+{
+	clear();
+
+	for (ColourList::const_iterator it = mColourList.begin();  ;  ++it)
+	{
+		if (it == mColourList.end())
+		{
+			mCustomColour = mSelectedColour;
+			break;
+		}
+		if (mSelectedColour == *it)
+			break;
+	}
+
+	QRect rect;
+	drawCustomItem(rect, true);
+
+	QPainter painter;
+	QPixmap pixmap(rect.width(), rect.height());
+	int i = 1;
+	for (ColourList::const_iterator it = mColourList.begin();  it != mColourList.end();  ++i, ++it)
+	{
+		painter.begin(&pixmap);
+		QBrush brush(*it);
+		painter.fillRect(rect, brush);
+		painter.end();
+
+		insertItem(pixmap);
+		pixmap.detach();
+
+		if (*it == mSelectedColour.rgb())
+			setCurrentItem(i);
+	}
+}
+
+void ColourCombo::drawCustomItem(QRect& rect, bool insert)
+{
+	QPen pen;
+	if (qGray(mCustomColour.rgb()) < 128)
+		pen.setColor(Qt::white);
+	else
+		pen.setColor(Qt::black);
+
+	QPainter painter;
+	QFontMetrics fm = QFontMetrics(painter.font());
+	rect.setRect(0, 0, width(), fm.height() + 4);
+	QPixmap pixmap(rect.width(), rect.height());
+
+	painter.begin(&pixmap);
+	QBrush brush(mCustomColour);
+	painter.fillRect(rect, brush);
+	painter.setPen(pen);
+	painter.drawText(2, fm.ascent() + 2, i18n("Custom..."));
+	painter.end();
+
+	if (insert)
+		insertItem(pixmap);
+	else
+		changeItem(pixmap, 0);
+	pixmap.detach();
+}
+
+void ColourCombo::setReadOnly(bool ro)
+{
+	mReadOnly = ro;
+}
+
+void ColourCombo::resizeEvent(QResizeEvent* re)
+{
+	QComboBox::resizeEvent(re);
+	addColours();
+}
+
+void ColourCombo::mousePressEvent(QMouseEvent* e)
+{
+	if (mReadOnly)
+	{
+		// Swallow up the event if it's the left button
+		if (e->button() == Qt::LeftButton)
+			return;
+	}
+	QComboBox::mousePressEvent(e);
+}
+
+void ColourCombo::mouseReleaseEvent(QMouseEvent* e)
+{
+	if (!mReadOnly)
+		QComboBox::mouseReleaseEvent(e);
+}
+
+void ColourCombo::mouseMoveEvent(QMouseEvent* e)
+{
+	if (!mReadOnly)
+		QComboBox::mouseMoveEvent(e);
+}
+
+void ColourCombo::keyPressEvent(QKeyEvent* e)
+{
+	if (!mReadOnly  ||  e->key() == Qt::Key_Escape)
+		QComboBox::keyPressEvent(e);
+}
+
+void ColourCombo::keyReleaseEvent(QKeyEvent* e)
+{
+	if (!mReadOnly)
+		QComboBox::keyReleaseEvent(e);
+}