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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 (patch)
tree67208f7c145782a7e90b123b982ca78d88cc2c87 /kalarm/lib/colourcombo.cpp
downloadtdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.tar.gz
tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/kalarm/lib/colourcombo.cpp 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);
+}