/* * Cantata * * Copyright (c) 2011-2013 Craig Drummond * * ---- * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ #include "actionitemdelegate.h" #include "itemview.h" #include "icon.h" #include "config.h" #include "groupedview.h" #include "actionmodel.h" #include #include #include #include #include #include int ActionItemDelegate::constBorder = 1; int ActionItemDelegate::constActionBorder = 4; int ActionItemDelegate::constActionIconSize = 16; int ActionItemDelegate::constLargeActionIconSize = 22; void ActionItemDelegate::setup() { int height=QApplication::fontMetrics().height(); if (height>17) { constActionIconSize=Icon::stdSize(((int)(height/4))*4); constLargeActionIconSize=Icon::stdSize(((int)(height/3))*3); constBorder=constActionIconSize>22 ? 2 : 1; constActionBorder=constActionIconSize>32 ? 6 : 4; } else { constActionBorder=4; constActionIconSize=16; constLargeActionIconSize=22; constBorder=1; } } QRect ActionItemDelegate::calcActionRect(bool rtl, ActionPos actionPos, const QRect &o) const { int iconSize=largeIcons ? constLargeActionIconSize : constActionIconSize; QRect rect=AP_HBottom==actionPos ? QRect(o.x(), o.y()+(o.height()/2), o.width(), o.height()/2) : o; return rtl ? AP_VTop==actionPos ? QRect(rect.x()+constActionBorder+3, rect.y()+constActionBorder, iconSize, iconSize) : QRect(rect.x()+constActionBorder, rect.y()+((rect.height()-iconSize)/2), iconSize, iconSize) : AP_VTop==actionPos ? QRect(rect.x()+rect.width()-(iconSize+constActionBorder+3), rect.y()+constActionBorder, iconSize, iconSize) : QRect(rect.x()+rect.width()-(iconSize+constActionBorder), rect.y()+((rect.height()-iconSize)/2), iconSize, iconSize); } void ActionItemDelegate::adjustActionRect(bool rtl, ActionPos actionPos, QRect &rect, int iconSize) { if (rtl) { if (AP_VTop==actionPos) { rect.adjust(0, iconSize+constActionBorder, 0, iconSize+constActionBorder); } else { rect.adjust(iconSize+constActionBorder, 0, iconSize+constActionBorder, 0); } } else { if (AP_VTop==actionPos) { rect.adjust(0, iconSize+constActionBorder, 0, iconSize+constActionBorder); } else { rect.adjust(-(iconSize+constActionBorder), 0, -(iconSize+constActionBorder), 0); } } } static QPainterPath buildPath(const QRectF &r, double radius) { QPainterPath path; double diameter(radius*2); path.moveTo(r.x()+r.width(), r.y()+r.height()-radius); path.arcTo(r.x()+r.width()-diameter, r.y(), diameter, diameter, 0, 90); path.arcTo(r.x(), r.y(), diameter, diameter, 90, 90); path.arcTo(r.x(), r.y()+r.height()-diameter, diameter, diameter, 180, 90); path.arcTo(r.x()+r.width()-diameter, r.y()+r.height()-diameter, diameter, diameter, 270, 90); return path; } static void drawBgnd(QPainter *painter, const QRect &rx) { QRectF r(rx.x()-0.5, rx.y()-0.5, rx.width()+1, rx.height()+1); QPainterPath p(buildPath(r, 3.0)); QColor c(Qt::white); painter->setRenderHint(QPainter::Antialiasing, true); c.setAlphaF(0.75); painter->fillPath(p, c); c.setAlphaF(0.95); painter->setPen(c); painter->drawPath(p); painter->setRenderHint(QPainter::Antialiasing, false); } ActionItemDelegate::ActionItemDelegate(QObject *p) : QStyledItemDelegate(p) , largeIcons(false) , underMouse(false) { } void ActionItemDelegate::drawIcons(QPainter *painter, const QRect &r, bool mouseOver, bool rtl, ActionPos actionPos, const QModelIndex &index) const { int iconSize=largeIcons ? constLargeActionIconSize : constActionIconSize; double opacity=painter->opacity(); if (!mouseOver) { painter->setOpacity(opacity*0.2); } QRect actionRect=calcActionRect(rtl, actionPos, r); QList actions=index.data(ItemView::Role_Actions).value >(); foreach (const QPointer &a, actions) { QPixmap pix=a->icon().pixmap(QSize(iconSize, iconSize)); if (!pix.isNull() && actionRect.width()>=pix.width()/* && r.x()>=0 && r.y()>=0*/) { drawBgnd(painter, actionRect); painter->drawPixmap(actionRect.x()+(actionRect.width()-pix.width())/2, actionRect.y()+(actionRect.height()-pix.height())/2, pix); } adjustActionRect(rtl, actionPos, actionRect, iconSize); } if (!mouseOver) { painter->setOpacity(opacity); } } void ActionItemDelegate::drawDivider(QPainter *p, const QRect &r, const QColor &color) const { QLinearGradient grad(r.bottomLeft(), r.bottomRight()); QColor col(color); double fadeSize=64.0; if (r.width()<(2.2*fadeSize)) { fadeSize=r.width()/3.0; } double fadePos=fadeSize/r.width(); col.setAlphaF(0.0); grad.setColorAt(0, col); col.setAlphaF(0.1); grad.setColorAt(fadePos, col); grad.setColorAt(1.0-fadePos, col); col.setAlphaF(0.0); grad.setColorAt(1, col); p->setPen(QPen(grad, 1)); p->drawLine(r.bottomLeft(), r.bottomRight()); } bool ActionItemDelegate::helpEvent(QHelpEvent *e, QAbstractItemView *view, const QStyleOptionViewItem &option, const QModelIndex &index) { if (QEvent::ToolTip==e->type()) { QAction *act=getAction(index); if (act) { QToolTip::showText(e->globalPos(), act->toolTip(), view); return true; } } return QStyledItemDelegate::helpEvent(e, view, option, index); } QAction * ActionItemDelegate::getAction(const QModelIndex &index) const { QAbstractItemView *view=(QAbstractItemView *)parent(); bool rtl = Qt::RightToLeft==QApplication::layoutDirection(); QListView *lv=qobject_cast(view); GroupedView *gv=lv ? 0 : qobject_cast(view); ActionPos actionPos=gv ? AP_HBottom : (lv && QListView::ListMode!=lv->viewMode() && index.child(0, 0).isValid() ? AP_VTop : AP_HMiddle); QRect rect = view->visualRect(index); rect.moveTo(view->viewport()->mapToGlobal(QPoint(rect.x(), rect.y()))); bool showCapacity = !index.data(ItemView::Role_CapacityText).toString().isEmpty(); if (gv || lv || showCapacity) { if (AP_VTop==actionPos) { rect.adjust(ActionItemDelegate::constBorder, ActionItemDelegate::constBorder, -ActionItemDelegate::constBorder, -ActionItemDelegate::constBorder); } else { rect.adjust(ActionItemDelegate::constBorder+3, 0, -(ActionItemDelegate::constBorder+3), 0); } } if (showCapacity) { int textHeight=QFontMetrics(QApplication::font()).height(); rect.adjust(0, 0, 0, -(textHeight+8)); } int iconSize=largeIcons ? constLargeActionIconSize : constActionIconSize; QRect actionRect=calcActionRect(rtl, actionPos, rect); QRect actionRect2(actionRect); ActionItemDelegate::adjustActionRect(rtl, actionPos, actionRect2, iconSize); QList actions=index.data(ItemView::Role_Actions).value >(); foreach (const QPointer &a, actions) { actionRect=actionPos ? actionRect.adjusted(0, -2, 0, 2) : actionRect.adjusted(-2, 0, 2, 0); if (actionRect.contains(QCursor::pos())) { return a; } ActionItemDelegate::adjustActionRect(rtl, actionPos, actionRect, iconSize); } return 0; }