From bb7e8985f6d189de0acac6a1c3033cb16378c1fb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= Date: Mon, 4 Nov 2013 02:53:05 +0100 Subject: Reformat and (slightly) decruft all the things. --- gui/widgets/InstanceDelegate.cpp | 246 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 246 insertions(+) create mode 100644 gui/widgets/InstanceDelegate.cpp (limited to 'gui/widgets/InstanceDelegate.cpp') diff --git a/gui/widgets/InstanceDelegate.cpp b/gui/widgets/InstanceDelegate.cpp new file mode 100644 index 00000000..487fed61 --- /dev/null +++ b/gui/widgets/InstanceDelegate.cpp @@ -0,0 +1,246 @@ +/* Copyright 2013 MultiMC Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "InstanceDelegate.h" +#include +#include +#include +#include +#include + +// Origin: Qt +static void viewItemTextLayout ( QTextLayout &textLayout, int lineWidth, qreal &height, qreal &widthUsed ) +{ + height = 0; + widthUsed = 0; + textLayout.beginLayout(); + QString str = textLayout.text(); + while ( true ) + { + QTextLine line = textLayout.createLine(); + if ( !line.isValid() ) + break; + if(line.textLength() == 0) + break; + line.setLineWidth ( lineWidth ); + line.setPosition ( QPointF ( 0, height ) ); + height += line.height(); + widthUsed = qMax ( widthUsed, line.naturalTextWidth() ); + } + textLayout.endLayout(); +} + +#define QFIXED_MAX (INT_MAX/256) + +ListViewDelegate::ListViewDelegate ( QObject* parent ) : QStyledItemDelegate ( parent ) +{ + +} + +void drawSelectionRect(QPainter *painter, const QStyleOptionViewItemV4 &option, const QRect &rect) +{ + if ((option.state & QStyle::State_Selected)) + painter->fillRect ( rect, option.palette.brush ( QPalette::Highlight ) ); + else + { + QColor backgroundColor = option.palette.color(QPalette::Background); + backgroundColor.setAlpha(160); + painter->fillRect ( rect, QBrush(backgroundColor) ); + } + +} + +void drawFocusRect(QPainter *painter, const QStyleOptionViewItemV4 &option, const QRect &rect) +{ + if (!(option.state & QStyle::State_HasFocus)) + return; + QStyleOptionFocusRect opt; + opt.direction = option.direction; + opt.fontMetrics = option.fontMetrics; + opt.palette = option.palette; + opt.rect = rect; + //opt.state = option.state | QStyle::State_KeyboardFocusChange | QStyle::State_Item; + auto col = option.state & QStyle::State_Selected ? QPalette::Highlight : QPalette::Base; + opt.backgroundColor = option.palette.color(col); + // Apparently some widget styles expect this hint to not be set + painter->setRenderHint(QPainter::Antialiasing, false); + + QStyle *style = option.widget ? option.widget->style() : QApplication::style(); + + style->drawPrimitive(QStyle::PE_FrameFocusRect, &opt, painter, option.widget); + + painter->setRenderHint(QPainter::Antialiasing); +} + +static QSize viewItemTextSize ( const QStyleOptionViewItemV4 *option ) +{ + QStyle *style = option->widget ? option->widget->style() : QApplication::style(); + QTextOption textOption; + textOption.setWrapMode ( QTextOption::WrapAtWordBoundaryOrAnywhere ); + QTextLayout textLayout; + textLayout.setTextOption ( textOption ); + textLayout.setFont ( option->font ); + textLayout.setText ( option->text ); + const int textMargin = style->pixelMetric ( QStyle::PM_FocusFrameHMargin, option, option->widget ) + 1; + QRect bounds ( 0,0,100 - 2*textMargin,600 ); + qreal height = 0, widthUsed = 0; + viewItemTextLayout ( textLayout, bounds.width(), height, widthUsed ); + const QSize size ( qCeil ( widthUsed ), qCeil ( height ) ); + return QSize ( size.width() + 2 * textMargin, size.height() ); +} + +void ListViewDelegate::paint ( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const +{ + QStyleOptionViewItemV4 opt = option; + initStyleOption ( &opt, index ); + painter->save(); + painter->setClipRect ( opt.rect ); + + opt.features |= QStyleOptionViewItem::WrapText; + opt.text = index.data().toString(); + opt.textElideMode = Qt::ElideRight; + opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter; + + QStyle *style = opt.widget ? opt.widget->style() : QApplication::style(); + + //const int iconSize = style->pixelMetric(QStyle::PM_IconViewIconSize); + const int iconSize = 48; + QRect iconbox = opt.rect; + const int textMargin = style->pixelMetric ( QStyle::PM_FocusFrameHMargin, 0, opt.widget ) + 1; + QRect textRect = opt.rect; + QRect textHighlightRect = textRect; + // clip the decoration on top, remove width padding + textRect.adjust ( textMargin,iconSize + textMargin + 5,-textMargin,0 ); + + textHighlightRect.adjust ( 0,iconSize + 5,0,0 ); + + // draw background + { + QSize textSize = viewItemTextSize ( &opt ); + QPalette::ColorGroup cg; + QStyleOptionViewItemV4 opt2(opt); + + if((opt.widget && opt.widget->isEnabled()) || (opt.state & QStyle::State_Enabled)) + { + if(! ( opt.state & QStyle::State_Active )) + cg = QPalette::Inactive; + else + cg = QPalette::Normal; + } + else + { + cg = QPalette::Disabled; + } + opt2.palette.setCurrentColorGroup(cg); + + // fill in background, if any + if ( opt.backgroundBrush.style() != Qt::NoBrush ) + { + QPointF oldBO = painter->brushOrigin(); + painter->setBrushOrigin ( opt.rect.topLeft() ); + painter->fillRect ( opt.rect, opt.backgroundBrush ); + painter->setBrushOrigin ( oldBO ); + } + + if ( opt.showDecorationSelected ) + { + drawSelectionRect(painter,opt2, opt.rect); + drawFocusRect(painter,opt2, opt.rect); + //painter->fillRect ( opt.rect, opt.palette.brush ( cg, QPalette::Highlight ) ); + } + else + { + + //if ( opt.state & QStyle::State_Selected ) + { + //QRect textRect = subElementRect ( QStyle::SE_ItemViewItemText, opt, opt.widget ); + //painter->fillRect ( textHighlightRect, opt.palette.brush ( cg, QPalette::Highlight ) ); + drawSelectionRect(painter,opt2, textHighlightRect); + drawFocusRect(painter,opt2, textHighlightRect); + } + } + } + + // draw the icon + { + QIcon::Mode mode = QIcon::Normal; + if ( ! ( opt.state & QStyle::State_Enabled ) ) + mode = QIcon::Disabled; + else if ( opt.state & QStyle::State_Selected ) + mode = QIcon::Selected; + QIcon::State state = opt.state & QStyle::State_Open ? QIcon::On : QIcon::Off; + + iconbox.setHeight ( iconSize ); + opt.icon.paint ( painter, iconbox, Qt::AlignCenter, mode, state ); + } + // set the text colors + QPalette::ColorGroup cg = opt.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled; + if ( cg == QPalette::Normal && ! ( opt.state & QStyle::State_Active ) ) + cg = QPalette::Inactive; + if ( opt.state & QStyle::State_Selected ) + { + painter->setPen ( opt.palette.color ( cg, QPalette::HighlightedText ) ); + } + else + { + painter->setPen ( opt.palette.color ( cg, QPalette::Text ) ); + } + + // draw the text + QTextOption textOption; + textOption.setWrapMode ( QTextOption::WrapAtWordBoundaryOrAnywhere ); + textOption.setTextDirection ( opt.direction ); + textOption.setAlignment ( QStyle::visualAlignment ( opt.direction, opt.displayAlignment ) ); + QTextLayout textLayout; + textLayout.setTextOption ( textOption ); + textLayout.setFont ( opt.font ); + textLayout.setText ( opt.text ); + + qreal width, height; + viewItemTextLayout ( textLayout, textRect.width(), height, width ); + + const int lineCount = textLayout.lineCount(); + + const QRect layoutRect = QStyle::alignedRect ( opt.direction, opt.displayAlignment, QSize ( textRect.width(), int ( height ) ), textRect ); + const QPointF position = layoutRect.topLeft(); + for ( int i = 0; i < lineCount; ++i ) + { + const QTextLine line = textLayout.lineAt ( i ); + line.draw ( painter, position ); + } + + painter->restore(); +} + + +QSize ListViewDelegate::sizeHint ( const QStyleOptionViewItem & option, const QModelIndex & index ) const +{ + QStyleOptionViewItemV4 opt = option; + initStyleOption ( &opt, index ); + opt.features |= QStyleOptionViewItem::WrapText; + opt.text = index.data().toString(); + opt.textElideMode = Qt::ElideRight; + opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter; + + QStyle *style = opt.widget ? opt.widget->style() : QApplication::style(); + const int textMargin = style->pixelMetric ( QStyle::PM_FocusFrameHMargin, &option, opt.widget ) + 1; + int height = 48 + textMargin * 2 + 5; // TODO: turn constants into variables + QSize szz = viewItemTextSize ( &opt ); + height += szz.height(); + // FIXME: maybe the icon items could scale and keep proportions? + QSize sz ( 100,height ); + return sz; +} + -- cgit v1.2.3