workspace/plasma/wallpapers/image/backgrounddelegate.cpp

   1 /*
   2   Copyright (c) 2007 Paolo Capriotti <p.capriotti@gmail.com>
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8 */
   9
  10 #include "backgrounddelegate.h"
  11
  12 #include <KGlobalSettings>
  13 #include <QPen>
  14 #include <QPainter>
  15 #include "backgroundpackage.h"
  16
  17 BackgroundDelegate::BackgroundDelegate(QObject *listener,
  18                                        float ratio, QObject *parent)
  19 : QAbstractItemDelegate(parent)
  20 , m_listener(listener)
  21 , m_ratio(ratio)
  22 {
  23 }
  24
  25 void BackgroundDelegate::paint(QPainter *painter,
  26                                const QStyleOptionViewItem &option,
  27                                const QModelIndex &index) const
  28 {
  29     QString title = index.model()->data(index, Qt::DisplayRole).toString();
  30     QString author = index.model()->data(index, AuthorRole).toString();
  31     QPixmap pix = index.model()->data(index, ScreenshotRole).value<QPixmap>();
  32
  33     // draw selection outline
  34     if (option.state & QStyle::State_Selected) {
  35         QPen oldPen = painter->pen();
  36         painter->setPen(option.palette.color(QPalette::Highlight));
  37         painter->drawRect(option.rect.adjusted(2, 2, -2, -2));
  38         painter->setPen(oldPen);
  39     }
  40
  41     // draw pixmap
  42     int maxheight = Background::SCREENSHOT_HEIGHT;
  43     int maxwidth = int(maxheight * m_ratio);
  44     if (!pix.isNull()) {
  45         QSize sz = pix.size();
  46         int x = MARGIN + (maxwidth - pix.width()) / 2;
  47         int y = MARGIN + (maxheight - pix.height()) / 2;
  48         QRect imgRect = QRect(option.rect.topLeft(), pix.size()).translated(x, y);
  49         painter->drawPixmap(imgRect, pix);
  50     }
  51
  52     // draw text
  53     painter->save();
  54     QFont font = painter->font();
  55     font.setWeight(QFont::Bold);
  56     painter->setFont(font);
  57     int x = option.rect.left() + MARGIN * 5 + maxwidth;
  58
  59     QRect textRect(x,
  60                    option.rect.top() + MARGIN,
  61                    option.rect.width() - x - MARGIN * 2,
  62                    maxheight);
  63     QString text = title;
  64     QString authorCaption;
  65     if (!author.isEmpty()) {
  66         authorCaption = i18nc("Caption to wallpaper preview, %1 author name",
  67                               "by %1", author);
  68         text += '\n' + authorCaption;
  69     }
  70     QRect boundingRect = painter->boundingRect(
  71         textRect, Qt::AlignVCenter | Qt::TextWordWrap, text);
  72     painter->drawText(boundingRect, Qt::TextWordWrap, title);
  73     if (!author.isEmpty()) {
  74         QRect titleRect = painter->boundingRect(boundingRect, Qt::TextWordWrap, title);
  75         QRect authorRect(titleRect.bottomLeft(), textRect.size());
  76         painter->setFont(KGlobalSettings::smallestReadableFont());
  77         painter->drawText(authorRect, Qt::TextWordWrap, authorCaption);
  78     }
  79
  80     painter->restore();
  81 }
  82
  83 QSize BackgroundDelegate::sizeHint(const QStyleOptionViewItem &,
  84                                    const QModelIndex &) const
  85 {
  86     return QSize(100, Background::SCREENSHOT_HEIGHT + MARGIN * 2);
  87 }
  88