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Mouse-over for all views

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This commit is contained in:
craig.p.drummond
2014-01-30 19:21:31 +00:00
committed by craig.p.drummond
parent 606976a21a
commit 3a169fe24e
3 changed files with 75 additions and 68 deletions
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80
widgets/basicitemdelegate.cpp
View File

@@ -22,9 +22,12 @@
*/
#include "basicitemdelegate.h"
#include "gtkstyle.h"
#include <QPainter>
#include <QStyle>
#include <QStyledItemDelegate>
#include <QApplication>
#include <QAbstractItemView>
void BasicItemDelegate::drawLine(QPainter *p, const QRect &r, const QColor &color, bool fadeStart, bool fadeEnd)
{
@@ -55,7 +58,14 @@ void BasicItemDelegate::drawLine(QPainter *p, const QRect &r, const QColor &colo
BasicItemDelegate::BasicItemDelegate(QObject *p)
: QStyledItemDelegate(p)
, trackMouse(false)
, underMouse(false)
{
if (GtkStyle::isActive() && qobject_cast<QAbstractItemView *>(p)) {
static_cast<QAbstractItemView *>(p)->setAttribute(Qt::WA_MouseTracking);
trackMouse=true;
p->installEventFilter(this);
}
}
BasicItemDelegate::~BasicItemDelegate()
@@ -70,30 +80,60 @@ void BasicItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opt
bool selected=option.state&QStyle::State_Selected;
bool active=option.state&QStyle::State_Active;
QStyledItemDelegate::paint(painter, option, index);
if (GtkStyle::isActive()) {
bool mouseOver=option.state&QStyle::State_MouseOver;
QStyleOptionViewItemV4 opt = option;
initStyleOption(&opt, index);
if (trackMouse && !underMouse) {
mouseOver=false;
}
if (mouseOver) {
opt.showDecorationSelected=true;
GtkStyle::drawSelection(option, painter, selected ? 0.75 : 0.25);
opt.showDecorationSelected=false;
opt.state&=~(QStyle::State_MouseOver|QStyle::State_Selected);
opt.backgroundBrush=QBrush(Qt::transparent);
if (selected) {
opt.palette.setBrush(QPalette::Text, opt.palette.highlightedText());
}
}
QApplication::style()->drawControl(QStyle::CE_ItemViewItem, &opt, painter, opt.widget);
} else {
QStyledItemDelegate::paint(painter, option, index);
}
QColor col(option.palette.color(active ? QPalette::Active : QPalette::Inactive,
selected ? QPalette::HighlightedText : QPalette::Text));
if (4==option.version) {
const QStyleOptionViewItemV4 &v4=(QStyleOptionViewItemV4 &)option;
switch (v4.viewItemPosition) {
case QStyleOptionViewItemV4::Beginning:
drawLine(painter, option.rect, col, true, false);
break;
case QStyleOptionViewItemV4::Middle:
drawLine(painter, option.rect, col, false, false);
break;
case QStyleOptionViewItemV4::End:
drawLine(painter, option.rect, col, false, true);
break;
case QStyleOptionViewItemV4::Invalid:
case QStyleOptionViewItemV4::OnlyOne:
drawLine(painter, option.rect, col, true, true);
}
} else {
switch (((QStyleOptionViewItemV4 &)option).viewItemPosition) {
case QStyleOptionViewItemV4::Beginning:
drawLine(painter, option.rect, col, true, false);
break;
case QStyleOptionViewItemV4::Middle:
drawLine(painter, option.rect, col, false, false);
break;
case QStyleOptionViewItemV4::End:
drawLine(painter, option.rect, col, false, true);
break;
case QStyleOptionViewItemV4::Invalid:
case QStyleOptionViewItemV4::OnlyOne:
drawLine(painter, option.rect, col, true, true);
}
}
bool BasicItemDelegate::eventFilter(QObject *object, QEvent *event)
{
if (object==parent()) {
if (QEvent::Enter==event->type()) {
underMouse=true;
static_cast<QAbstractItemView *>(parent())->viewport()->update();
} else if (QEvent::Leave==event->type()) {
underMouse=false;
static_cast<QAbstractItemView *>(parent())->viewport()->update();
}
}
return QStyledItemDelegate::eventFilter(object, event);
}

5
widgets/basicitemdelegate.h
View File

@@ -33,6 +33,11 @@ public:
BasicItemDelegate(QObject *p);
virtual ~BasicItemDelegate();
void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
private:
bool eventFilter(QObject *object, QEvent *event);
private:
bool trackMouse;
bool underMouse;
};
#endif

58
widgets/playqueueview.cpp
View File

@@ -44,11 +44,10 @@
// Exported by QtGui
void qt_blurImage(QPainter *p, QImage &blurImage, qreal radius, bool quality, bool alphaOnly, int transposed = 0);
class PlayQueueTreeViewItemDelegate : public QStyledItemDelegate
class PlayQueueTreeViewItemDelegate : public BasicItemDelegate
{
public:
PlayQueueTreeViewItemDelegate(QObject *p) : QStyledItemDelegate(p) { }
PlayQueueTreeViewItemDelegate(QObject *p) : BasicItemDelegate(p) { }
virtual ~PlayQueueTreeViewItemDelegate() { }
void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
@@ -56,53 +55,16 @@ public:
return;
}
bool selected=option.state&QStyle::State_Selected;
bool active=option.state&QStyle::State_Active;
QColor col(option.palette.color(active ? QPalette::Active : QPalette::Inactive,
selected ? QPalette::HighlightedText : QPalette::Text));
if (4==option.version) {
const QStyleOptionViewItemV4 &v4=(QStyleOptionViewItemV4 &)option;
QIcon icon;
if (QStyleOptionViewItemV4::Beginning==v4.viewItemPosition) {
icon=index.data(PlayQueueView::Role_Decoration).value<QIcon>();
QStyleOptionViewItemV4 v4((QStyleOptionViewItemV4 &)option);
if (QStyleOptionViewItemV4::Beginning==v4.viewItemPosition) {
v4.icon=index.data(PlayQueueView::Role_Decoration).value<QIcon>();
if (!v4.icon.isNull()) {
v4.features |= QStyleOptionViewItemV2::HasDecoration;
v4.decorationSize=v4.icon.actualSize(option.decorationSize, QIcon::Normal, QIcon::Off);
}
QSize decorSize;
if (!icon.isNull()) {
decorSize = icon.actualSize(option.decorationSize);
}
if (decorSize.isEmpty()) {
QStyledItemDelegate::paint(painter, option, index);
} else {
QStyleOptionViewItemV4 opt=v4;
int width=decorSize.width()+(Utils::isHighDpi() ? 8 : 4);
opt.rect.adjust(width, 0, 0, 0);
QStyledItemDelegate::paint(painter, opt, index);
QPixmap pix=icon.pixmap(decorSize);
painter->drawPixmap(option.rect.x()+((width-pix.width())/2), option.rect.y()+((option.rect.height()-pix.height())/2), pix);
}
switch (v4.viewItemPosition) {
case QStyleOptionViewItemV4::Beginning:
BasicItemDelegate::drawLine(painter, option.rect, col, true, false);
break;
case QStyleOptionViewItemV4::Middle:
BasicItemDelegate::drawLine(painter, option.rect, col, false, false);
break;
case QStyleOptionViewItemV4::End:
BasicItemDelegate::drawLine(painter, option.rect, col, false, true);
break;
case QStyleOptionViewItemV4::Invalid:
case QStyleOptionViewItemV4::OnlyOne:
BasicItemDelegate::drawLine(painter, option.rect, col, true, true);
}
} else {
QStyledItemDelegate::paint(painter, option, index);
BasicItemDelegate::drawLine(painter, option.rect, col, false, false);
}
BasicItemDelegate::paint(painter, v4, index);
}
};