src/panels/places/placesitemlistwidget.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2012 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "placesitemlistwidget.h"
   8
   9 #include <QDebug>
  10
  11 #include <QGraphicsView>
  12 #include <QStyleOption>
  13
  14 #include <KDiskFreeSpaceInfo>
  15 #include <KMountPoint>
  16
  17 #define CAPACITYBAR_HEIGHT 2
  18 #define CAPACITYBAR_MARGIN 2
  19
  20
  21 PlacesItemListWidget::PlacesItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
  22     KStandardItemListWidget(informant, parent)
  23     , m_isMountPoint(false)
  24     , m_drawCapacityBar(false)
  25     , m_capacityBarRatio(0)
  26 {
  27 }
  28
  29 PlacesItemListWidget::~PlacesItemListWidget()
  30 {
  31 }
  32
  33 bool PlacesItemListWidget::isHidden() const
  34 {
  35     return data().value("isHidden").toBool() ||
  36            data().value("isGroupHidden").toBool();
  37 }
  38
  39 QPalette::ColorRole PlacesItemListWidget::normalTextColorRole() const
  40 {
  41     return QPalette::WindowText;
  42 }
  43
  44 void PlacesItemListWidget::updateCapacityBar()
  45 {
  46     const QUrl url = data().value("url").toUrl();
  47     if (url.isLocalFile()) {
  48         const QString mountPointPath = url.toLocalFile();
  49         qDebug() << "url:" << mountPointPath;
  50         KMountPoint::Ptr mp = KMountPoint::currentMountPoints().findByPath(mountPointPath);
  51         m_isMountPoint = (mp && mp->mountPoint() == mountPointPath);
  52         qDebug() << "    isMountPoint:" << m_isMountPoint;
  53         if (m_isMountPoint) {
  54             const KDiskFreeSpaceInfo info = KDiskFreeSpaceInfo::freeSpaceInfo(mountPointPath);
  55             m_drawCapacityBar = info.size() != 0;
  56             m_capacityBarRatio = (qreal)info.used() / (qreal)info.size();
  57             qDebug() << "    capacityBarRatio:" << m_capacityBarRatio << "(" << info.used() << "/" << info.size() << ")";
  58
  59             // update();
  60         } else {
  61             resetCapacityBar();
  62         }
  63     } else {
  64         resetCapacityBar();
  65     }
  66 }
  67
  68 void PlacesItemListWidget::resetCapacityBar()
  69 {
  70     m_isMountPoint = false;
  71     m_drawCapacityBar = false;
  72     m_capacityBarRatio = 0;
  73 }
  74
  75 void PlacesItemListWidget::polishEvent()
  76 {
  77     updateCapacityBar();
  78
  79     QGraphicsWidget::polishEvent();
  80 }
  81
  82 void PlacesItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
  83 {
  84     KStandardItemListWidget::paint(painter, option, widget);
  85
  86     if (m_drawCapacityBar) {
  87         const TextInfo* textInfo = m_textInfo.value("text");
  88         if (textInfo) { // See KStandarItemListWidget::paint() for info on why we check textInfo.
  89             painter->save();
  90
  91             QRect capacityRect(
  92                 textInfo->pos.x(),
  93                 option->rect.top() + option->rect.height() - CAPACITYBAR_HEIGHT - CAPACITYBAR_MARGIN,
  94                 qMin((qreal)option->rect.width(), selectionRect().width()) - (textInfo->pos.x() - option->rect.left()),
  95                 CAPACITYBAR_HEIGHT
  96             );
  97
  98             const QPalette pal = palette();
  99             const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 100             // QColor bgColor = QColor::fromRgb(230, 230, 230);
 101             // QColor outlineColor = QColor::fromRgb(208, 208, 208);
 102             // QColor bgColor = QColor::fromRgb(0, 230, 0);
 103             // QColor outlineColor = QColor::fromRgb(208, 0, 0, 127);
 104             // QColor normalUsedColor = QColor::fromRgb(38, 160, 218);
 105             // QColor dangerUsedColor = QColor::fromRgb(218, 38, 38);
 106             // QColor bgColor = pal.base().color().darker(130);
 107             // QColor outlineColor = pal.base().color().darker(150);
 108
 109             QPalette::ColorRole role;
 110             // role = isSelected() ? QPalette::Highlight : QPalette::Window;
 111             // QColor bgColor = styleOption().palette.color(group, role).darker(150);
 112             // QColor outlineColor = styleOption().palette.color(group, role).darker(170);
 113             QColor bgColor = isSelected()
 114                 ? styleOption().palette.color(group, QPalette::Highlight).darker(180)
 115                 : styleOption().palette.color(group, QPalette::Window).darker(120);
 116
 117             role = isSelected() ? QPalette::HighlightedText : QPalette::Highlight;
 118             QColor normalUsedColor = styleOption().palette.color(group, role);
 119
 120             QColor dangerUsedColor = QColor::fromRgb(218, 38, 38);
 121
 122             // Background
 123             painter->fillRect(capacityRect, bgColor);
 124
 125             // Outline
 126             // const QRect outlineRect(capacityRect.x(), capacityRect.y(), capacityRect.width() - 1, capacityRect.height() - 1);
 127             // painter->setPen(outlineColor);
 128             // painter->drawRect(outlineRect);
 129
 130             // Fill
 131             const QRect fillRect(capacityRect.x(), capacityRect.y(), capacityRect.width() * m_capacityBarRatio, capacityRect.height());
 132             if (m_capacityBarRatio < 0.95) { // Fill
 133                 painter->fillRect(fillRect, normalUsedColor);
 134             } else {
 135                 painter->fillRect(fillRect, dangerUsedColor);
 136             }
 137
 138             painter->restore();
 139         }
 140     }
 141 }