testQxtSpanSlider-master.7z

#include "QxtSpanSlider.h" /**************************************************************************** ** Copyright (c) 2006 - 2011, the LibQxt project. ** See the Qxt AUTHORS file for a list of authors and copyright holders. ** All rights reserved. ** ** Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in the ** documentation and/or other materials provided with the distribution. ** * Neither the name of the LibQxt project nor the ** names of its contributors may be used to endorse or promote products ** derived from this software without specific prior written permission. ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED ** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE ** DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY ** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ** ** <http://libqxt.org> <foundation@libqxt.org> *****************************************************************************/ #include "QxtSpanSlider_p.h" #include <QKeyEvent> #include <QMouseEvent> #include <QApplication> #include <QStylePainter> #include <QStyleOptionSlider> #include <QStylePainter> QxtSpanSliderPrivate::QxtSpanSliderPrivate() : lower(0), upper(0), lowerPos(0), upperPos(0), offset(0), position(0), lastPressed(QxtSpanSlider::NoHandle), mainControl(QxtSpanSlider::LowerHandle), lowerPressed(QStyle::SC_None), upperPressed(QStyle::SC_None), movement(QxtSpanSlider::FreeMovement), firstMovement(false), blockTracking(false) { } void QxtSpanSliderPrivate::initStyleOption(QStyleOptionSlider* option, QxtSpanSlider::SpanHandle handle) const { const QxtSpanSlider* p = q_ptr; p->initStyleOption(option); option->sliderPosition = (handle == QxtSpanSlider::LowerHandle ? lowerPos : upperPos); option->sliderValue = (handle == QxtSpanSlider::LowerHandle ? lower : upper); } int QxtSpanSliderPrivate::pixelPosToRangeValue(int pos) const { QStyleOptionSlider opt; initStyleOption(&opt); int sliderMin = 0; int sliderMax = 0; int sliderLength = 0; const QSlider* p = q_ptr; const QRect gr = p->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, p); const QRect sr = p->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, p); if (p->orientation() == Qt::Horizontal) { sliderLength = sr.width(); sliderMin = gr.x(); sliderMax = gr.right() - sliderLength + 1; } else { sliderLength = sr.height(); sliderMin = gr.y(); sliderMax = gr.bottom() - sliderLength + 1; } return QStyle::sliderValueFromPosition(p->minimum(), p->maximum(), pos - sliderMin, sliderMax - sliderMin, opt.upsideDown); } void QxtSpanSliderPrivate::handleMousePress(const QPoint& pos, QStyle::SubControl& control, int value, QxtSpanSlider::SpanHandle handle) { QStyleOptionSlider opt; initStyleOption(&opt, handle); QxtSpanSlider* p = q_ptr; const QStyle::SubControl oldControl = control; control = p->style()->hitTestComplexControl(QStyle::CC_Slider, &opt, pos, p); const QRect sr = p->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, p); if (control == QStyle::SC_SliderHandle) { position = value; offset = pick(pos - sr.topLeft()); lastPressed = handle; p->setSliderDown(true); emit p->sliderPressed(handle); } if (control != oldControl) p->update(sr); } void QxtSpanSliderPrivate::setupPainter(QPainter* painter, Qt::Orientation orientation, qreal x1, qreal y1, qreal x2, qreal y2) const { QColor highlight = q_ptr->palette().color(QPalette::Highlight); QLinearGradient gradient(x1, y1, x2, y2); gradient.setColorAt(0, highlight.dark(120)); gradient.setColorAt(1, highlight.light(108)); painter->setBrush(gradient); if (orientation == Qt::Horizontal) painter->setPen(QPen(highlight.dark(130), 0)); else painter->setPen(QPen(highlight.dark(150), 0)); } void QxtSpanSliderPrivate::drawSpan(QStylePainter* painter, const QRect& rect) const { QStyleOptionSlider opt; initStyleOption(&opt); const QSlider* p = q_ptr; // area QRect groove = p->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, p); if (opt.orientation == Qt::Horizontal) groove.adjust(0, 0, -1, 0); else groove.adjust(0, 0, 0, -1); // pen & brush painter->setPen(QPen(p->palette().color(QPalette::Dark).light(110), 0)); if (opt.orientation == Qt::Horizontal) setupPainter(painter, opt.orientation, groove.center().x(), groove.top(), groove.center().x(), groove.bottom()); else setupPainter(painter, opt.orientation, groove.left(), groove.center().y(), groove.right(), groove.center().y()); // draw groove painter->drawRect(rect.intersected(groove)); } void QxtSpanSliderPrivate::drawHandle(QStylePainter* painter, QxtSpanSlider::SpanHandle handle) const { QStyleOptionSlider opt; initStyleOption(&opt, handle); opt.subControls = QStyle::SC_SliderHandle; QStyle::SubControl pressed = (handle == QxtSpanSlider::LowerHandle ? lowerPressed : upperPressed); if (pressed == QStyle::SC_SliderHandle) { opt.activeSubControls = pressed; opt.state |= QStyle::State_Sunken; } painter->drawComplexControl(QStyle::CC_Slider, opt); } void QxtSpanSliderPrivate::triggerAction(QAbstractSlider::SliderAction action, bool main) { int value = 0; bool no = false; bool up = false; const int min = q_ptr->minimum(); const int max = q_ptr->maximum(); const QxtSpanSlider::SpanHandle altControl = (mainControl == QxtSpanSlider::LowerHandle ? QxtSpanSlider::UpperHandle : QxtSpanSlider::LowerHandle); blockTracking = true; switch (action) { case QAbstractSlider::SliderSingleStepAdd: if ((main && mainControl == QxtSpanSlider::UpperHandle) || (!main && altControl == QxtSpanSlider::UpperHandle)) { value = qBound(min, upper + q_ptr->singleStep(), max); up = true; break; } value = qBound(min, lower + q_ptr->singleStep(), max); break; case QAbstractSlider::SliderSingleStepSub: if ((main && mainControl == QxtSpanSlider::UpperHandle) || (!main && altControl == QxtSpanSlider::UpperHandle)) { value = qBound(min, upper - q_ptr->singleStep(), max); up = true; break; } value = qBound(min, lower - q_ptr->singleStep(), max); break; case QAbstractSlider::SliderToMinimum: value = min; if ((main && mainControl == QxtSpanSlider::UpperHandle) || (!main && altControl == QxtSpanSlider::UpperHandle)) up = true; break; case QAbstractSlider::SliderToMaximum: value = max; if ((main && mainControl == QxtSpanSlider::UpperHandle) ||