src/views/dolphinfileitemlistwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@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  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "dolphinfileitemlistwidget.h"
  21
  22 #include <KIcon>
  23 #include <KIconLoader>
  24 #include <QColor>
  25
  26 #include <KDebug>
  27
  28 DolphinFileItemListWidget::DolphinFileItemListWidget(QGraphicsItem* parent) :
  29     KFileItemListWidget(parent)
  30 {
  31 }
  32
  33 DolphinFileItemListWidget::~DolphinFileItemListWidget()
  34 {
  35 }
  36
  37 void DolphinFileItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current, const QSet<QByteArray>& roles)
  38 {
  39     KFileItemListWidget::dataChanged(current, roles);
  40
  41     QColor color;
  42     QPixmap overlay;
  43     if (roles.contains("version")) {
  44         // The item is under version control. Apply the text color corresponding
  45         // to its version state.
  46         const KVersionControlPlugin::VersionState version = static_cast<KVersionControlPlugin::VersionState>(current.value("version").toInt());
  47         const QColor textColor = styleOption().palette.text().color();
  48         QColor tintColor = textColor;
  49
  50         // Using hardcoded colors is generally a bad idea. In this case the colors just act
  51         // as tint colors and are mixed with the current set text color. The tint colors
  52         // have been optimized for the base colors of the corresponding Oxygen emblems.
  53         switch (version) {
  54         case KVersionControlPlugin::UpdateRequiredVersion:          tintColor = Qt::yellow; break;
  55         case KVersionControlPlugin::LocallyModifiedUnstagedVersion: tintColor = Qt::green; break;
  56         case KVersionControlPlugin::LocallyModifiedVersion:         tintColor = Qt::green; break;
  57         case KVersionControlPlugin::AddedVersion:                   tintColor = Qt::green; break;
  58         case KVersionControlPlugin::RemovedVersion:                 tintColor = Qt::darkRed; break;
  59         case KVersionControlPlugin::ConflictingVersion:             tintColor = Qt::red; break;
  60         case KVersionControlPlugin::UnversionedVersion:             tintColor = Qt::white; break;
  61         case KVersionControlPlugin::NormalVersion:
  62         default:
  63             break;
  64         }
  65
  66         color = QColor((tintColor.red()   + textColor.red())   / 2,
  67                        (tintColor.green() + textColor.green()) / 2,
  68                        (tintColor.blue()  + textColor.blue())  / 2,
  69                        (tintColor.alpha() + textColor.alpha()) / 2);
  70
  71         overlay = overlayForState(version, styleOption().iconSize);
  72     }
  73
  74     setTextColor(color);
  75     setOverlay(overlay);
  76 }
  77
  78 void DolphinFileItemListWidget::styleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous)
  79 {
  80     KFileItemListWidget::styleOptionChanged(current, previous);
  81
  82     if (!overlay().isNull() && current.iconSize != previous.iconSize) {
  83         const KVersionControlPlugin::VersionState version = static_cast<KVersionControlPlugin::VersionState>(data().value("version").toInt());
  84         const QPixmap newOverlay = overlayForState(version, current.iconSize);
  85         setOverlay(newOverlay);
  86     }
  87 }
  88
  89 QPixmap DolphinFileItemListWidget::overlayForState(KVersionControlPlugin::VersionState version, int size)
  90 {
  91     int overlayHeight = KIconLoader::SizeSmall;
  92     if (size >= KIconLoader::SizeEnormous) {
  93         overlayHeight = KIconLoader::SizeMedium;
  94     } else if (size >= KIconLoader::SizeLarge) {
  95         overlayHeight = KIconLoader::SizeSmallMedium;
  96     } else if (size >= KIconLoader::SizeMedium) {
  97         overlayHeight = KIconLoader::SizeSmall;
  98     } else {
  99         overlayHeight = KIconLoader::SizeSmall / 2;
 100     }
 101
 102     QString iconName;
 103     switch (version) {
 104     case KVersionControlPlugin::NormalVersion:
 105         iconName = "vcs-normal";
 106         break;
 107     case KVersionControlPlugin::UpdateRequiredVersion:
 108         iconName = "vcs-update-required";
 109         break;
 110     case KVersionControlPlugin::LocallyModifiedVersion:
 111         iconName = "vcs-locally-modified";
 112         break;
 113     case KVersionControlPlugin::LocallyModifiedUnstagedVersion:
 114         iconName = "vcs-locally-modified-unstaged";
 115         break;
 116     case KVersionControlPlugin::AddedVersion:
 117         iconName = "vcs-added";
 118         break;
 119     case KVersionControlPlugin::RemovedVersion:
 120         iconName = "vcs-removed";
 121         break;
 122     case KVersionControlPlugin::ConflictingVersion:
 123         iconName = "vcs-conflicting";
 124         break;
 125     case KVersionControlPlugin::UnversionedVersion:
 126         break;
 127     default:
 128         Q_ASSERT(false);
 129         break;
 130     }
 131
 132     return KIcon(iconName).pixmap(QSize(overlayHeight, overlayHeight));
 133 }
 134
 135 #include "dolphinfileitemlistwidget.moc"