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Diffstat (limited to 'src/prefcolor.cpp')
| -rw-r--r-- | src/prefcolor.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/prefcolor.cpp b/src/prefcolor.cpp new file mode 100644 index 0000000..85beb4b --- /dev/null +++ b/src/prefcolor.cpp @@ -0,0 +1,172 @@ +/*************************************************************************** + * + * 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 <qlistview.h> +#include <qpainter.h> +#include <kcolordialog.h> +#include "prefcolor.h" +#include "kscopeconfig.h" + +/** + * A list view item that shows the name of a GUI element and the colour + * associated with it. + * The colour is presented in the form of a rectangle filled with that + * colour. + * @author Elad Lahav + */ +class ColorListItem : public QListViewItem +{ +public: + /** + * Class constructor. + * @param pList The owner list view + * @param ce The GUI element shown by this item + */ + ColorListItem(QListView* pList, KScopeConfig::ColorElement ce) : + QListViewItem(pList, Config().getColorName(ce), ""), + m_ce(ce) { + setColor(Config().getColor(ce)); + } + + /** + * @return The GUI element shown by this item + */ + KScopeConfig::ColorElement getElement() { return m_ce; } + + /** + * Changes the colour associated with this item. + * The function assigns a pixmap to the item which shows a rectangle + * filled with the requested colour. + * The colour set by this function is returned by getColor(). + * @param clr The colour to set + */ + void setColor(QColor clr) { + QPixmap pix; + QPainter painter; + int nWidth, nHeight; + + // Remember the colour + m_clr = clr; + + // Set the pixmap's size to fit into the list field + nWidth = listView()->columnWidth(1) - 1; + nHeight = height(); + pix.resize(nWidth, nHeight); + + // Draw on the pixmap + painter.begin(&pix); + painter.setBrush(clr); + painter.drawRect(0, 0, nWidth, nHeight); + painter.end(); + + // Set the pixmap to the item + setPixmap(1, pix); + } + + /** + * @return The colour associated with this item + */ + QColor getColor() { return m_clr; } + +private: + /** The GUI element shown by this item. */ + KScopeConfig::ColorElement m_ce; + + /** The colour associated with this item. */ + QColor m_clr; +}; + +/** + * Class constructor. + * @param pParent The parent widget + * @param szName The widget's name + */ +PrefColor::PrefColor(QWidget* pParent, const char* szName) : + PrefColorLayout(pParent, szName) +{ + m_pList->setColumnWidthMode(1, QListView::Manual); + + // Set initial values + load(); +} + +/** + * Class destructor. + */ +PrefColor::~PrefColor() +{ +} + +/** + * Reads the current settings from the configuration object, and applies them + * the the page's widget. + */ +void PrefColor::load() +{ + uint i; + ColorListItem* pItem; + + // Create a list item for every GUI element + for (i = 0; i <= KScopeConfig::LAST_COLOR; i++) + pItem = new ColorListItem(m_pList, (KScopeConfig::ColorElement)i); +} + +/** + * Commits settings changes to the configuration object. + */ +void PrefColor::apply() +{ + ColorListItem* pItem; + + // Create a list item for every GUI element + for (pItem = (ColorListItem*)m_pList->firstChild(); pItem != NULL; + pItem = (ColorListItem*)pItem->nextSibling()) { + Config().setColor(pItem->getElement(), pItem->getColor()); + } +} + +/** + * Displays a colour selection dialogue when an item is selected. + * If the user chooses a new colour, it is set to the selected item. + * This slot is connected to both the doubleClicked() and the returnPressed() + * signals of the list view. + * @param pItem The selected item + */ +void PrefColor::slotItemSelected(QListViewItem* pItem) +{ + ColorListItem* pClrItem; + QColor clr; + + pClrItem = (ColorListItem*)pItem; + if (KColorDialog::getColor(clr, pClrItem->getColor()) == + QDialog::Accepted) { + pClrItem->setColor(clr); + emit modified(); + } +} + +#include "prefcolor.moc" |