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Diffstat (limited to 'examples/scroller/plot/settingswidget.cpp')
| -rw-r--r-- | examples/scroller/plot/settingswidget.cpp | 689 |
1 files changed, 0 insertions, 689 deletions
diff --git a/examples/scroller/plot/settingswidget.cpp b/examples/scroller/plot/settingswidget.cpp deleted file mode 100644 index c9de008..0000000 --- a/examples/scroller/plot/settingswidget.cpp +++ /dev/null @@ -1,689 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "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 Nokia Corporation and its Subsidiary(-ies) 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 THE COPYRIGHT -** OWNER OR CONTRIBUTORS 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." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QVariant> -#include <QSlider> -#include <QHBoxLayout> -#include <QLabel> -#include <QPushButton> -#include <QComboBox> -#include <QSpinBox> -#include <QGroupBox> -#include <QToolButton> -#include <QCheckBox> -#include <QScrollBar> -#include <QPainter> -#include <QScrollArea> -#include <QScrollPrepareEvent> -#include <QApplication> -#include <QPlainTextEdit> -#include <QTextBlock> -#include <qnumeric.h> - -#include <QEasingCurve> - -#include <QDebug> - -#include "math.h" - -#include "settingswidget.h" -#include "qscroller.h" -#include "qscrollerproperties.h" - -class SnapOverlay : public QWidget -{ - Q_OBJECT -public: - SnapOverlay(QWidget *w) - : QWidget(w) - { - setAttribute(Qt::WA_TransparentForMouseEvents); - - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(w)) { - connect(area->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(update())); - connect(area->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(update())); - area->viewport()->installEventFilter(this); - } - } - void clear(Qt::Orientation o) - { - m_snap[o].clear(); - update(); - } - - void set(Qt::Orientation o, qreal first, qreal step) - { - m_snap[o] = QList<qreal>() << -Q_INFINITY << first << step; - update(); - } - - void set(Qt::Orientation o, const QList<qreal> &list) - { - m_snap[o] = list; - update(); - } - -protected: - bool eventFilter(QObject *o, QEvent *e) - { - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(parentWidget())) { - if (area->viewport() == o) { - if (e->type() == QEvent::Move || e->type() == QEvent::Resize) { - setGeometry(area->viewport()->rect()); - } - } - } - return false; - } - - void paintEvent(QPaintEvent *e) - { - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(parentWidget())) { - int dx = area->horizontalScrollBar()->value(); - int dy = area->verticalScrollBar()->value(); - - QPainter paint(this); - paint.fillRect(e->rect(), Qt::transparent); - paint.setPen(QPen(Qt::red, 9)); - - if (m_snap[Qt::Horizontal].isEmpty()) { - } else if (m_snap[Qt::Horizontal][0] == -Q_INFINITY) { - int start = int(m_snap[Qt::Horizontal][1]); - int step = int(m_snap[Qt::Horizontal][2]); - if (step > 0) { - for (int i = start; i < area->horizontalScrollBar()->maximum(); i += step) - paint.drawPoint(i - dx, 5); - } - } else { - foreach (qreal r, m_snap[Qt::Horizontal]) - paint.drawPoint(int(r) - dx, 5); - } - paint.setPen(QPen(Qt::green, 9)); - if (m_snap[Qt::Vertical].isEmpty()) { - } else if (m_snap[Qt::Vertical][0] == -Q_INFINITY) { - int start = int(m_snap[Qt::Vertical][1]); - int step = int(m_snap[Qt::Vertical][2]); - if (step > 0) { - for (int i = start; i < area->verticalScrollBar()->maximum(); i += step) - paint.drawPoint(5, i - dy); - } - } else { - foreach (qreal r, m_snap[Qt::Vertical]) - paint.drawPoint(5, int(r) - dy); - } - } - } - -private: - QMap<Qt::Orientation, QList<qreal> > m_snap; -}; - -struct MetricItem -{ - QScrollerProperties::ScrollMetric metric; - const char *name; - int scaling; - const char *unit; - QVariant min, max; - QVariant step; -}; - -class MetricItemUpdater : public QObject -{ - Q_OBJECT -public: - MetricItemUpdater(MetricItem *item) - : m_item(item) - , m_widget(0) - , m_slider(0) - , m_combo(0) - , m_valueLabel(0) - { - m_frameRateType = QVariant::fromValue(QScrollerProperties::Standard).userType(); - m_overshootPolicyType = QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable).userType(); - - if (m_item->min.type() == QVariant::EasingCurve) { - m_combo = new QComboBox(); - m_combo->addItem("OutQuad", QEasingCurve::OutQuad); - m_combo->addItem("OutCubic", QEasingCurve::OutCubic); - m_combo->addItem("OutQuart", QEasingCurve::OutQuart); - m_combo->addItem("OutQuint", QEasingCurve::OutQuint); - m_combo->addItem("OutExpo", QEasingCurve::OutExpo); - m_combo->addItem("OutSine", QEasingCurve::OutSine); - m_combo->addItem("OutCirc", QEasingCurve::OutCirc); - } else if (m_item->min.userType() == m_frameRateType) { - m_combo = new QComboBox(); - m_combo->addItem("Standard", QScrollerProperties::Standard); - m_combo->addItem("60 FPS", QScrollerProperties::Fps60); - m_combo->addItem("30 FPS", QScrollerProperties::Fps30); - m_combo->addItem("20 FPS", QScrollerProperties::Fps20); - } else if (m_item->min.userType() == m_overshootPolicyType) { - m_combo = new QComboBox(); - m_combo->addItem("When Scrollable", QScrollerProperties::OvershootWhenScrollable); - m_combo->addItem("Always On", QScrollerProperties::OvershootAlwaysOn); - m_combo->addItem("Always Off", QScrollerProperties::OvershootAlwaysOff); - } else { - m_slider = new QSlider(Qt::Horizontal); - m_slider->setSingleStep(1); - m_slider->setMinimum(-1); - m_slider->setMaximum(qRound((m_item->max.toReal() - m_item->min.toReal()) / m_item->step.toReal())); - m_slider->setValue(-1); - m_valueLabel = new QLabel(); - } - m_nameLabel = new QLabel(QLatin1String(m_item->name)); - if (m_item->unit && m_item->unit[0]) - m_nameLabel->setText(m_nameLabel->text() + QLatin1String(" [") + QLatin1String(m_item->unit) + QLatin1String("]")); - m_resetButton = new QToolButton(); - m_resetButton->setText(QLatin1String("Reset")); - m_resetButton->setEnabled(false); - - connect(m_resetButton, SIGNAL(clicked()), this, SLOT(reset())); - if (m_slider) { - connect(m_slider, SIGNAL(valueChanged(int)), this, SLOT(controlChanged(int))); - m_slider->setMinimum(0); - } else if (m_combo) { - connect(m_combo, SIGNAL(currentIndexChanged(int)), this, SLOT(controlChanged(int))); - } - } - - void setScroller(QWidget *widget) - { - m_widget = widget; - QScroller *scroller = QScroller::scroller(widget); - QScrollerProperties properties = QScroller::scroller(widget)->scrollerProperties(); - - if (m_slider) - m_slider->setEnabled(scroller); - if (m_combo) - m_combo->setEnabled(scroller); - m_nameLabel->setEnabled(scroller); - if (m_valueLabel) - m_valueLabel->setEnabled(scroller); - m_resetButton->setEnabled(scroller); - - if (!scroller) - return; - - m_default_value = properties.scrollMetric(m_item->metric); - valueChanged(m_default_value); - } - - QWidget *nameLabel() { return m_nameLabel; } - QWidget *valueLabel() { return m_valueLabel; } - QWidget *valueControl() { if (m_combo) return m_combo; else return m_slider; } - QWidget *resetButton() { return m_resetButton; } - -private slots: - void valueChanged(const QVariant &v) - { - m_value = v; - if (m_slider) { - switch (m_item->min.type()) { - case QMetaType::Float: - case QVariant::Double: { - m_slider->setValue(qRound((m_value.toReal() * m_item->scaling - m_item->min.toReal()) / m_item->step.toReal())); - break; - } - case QVariant::Int: { - m_slider->setValue(qRound((m_value.toInt() * m_item->scaling - m_item->min.toInt()) / m_item->step.toInt())); - break; - } - default: break; - } - } else if (m_combo) { - if (m_item->min.type() == QVariant::EasingCurve) { - m_combo->setCurrentIndex(m_combo->findData(v.toEasingCurve().type())); - } else if (m_item->min.userType() == m_overshootPolicyType) { - m_combo->setCurrentIndex(m_combo->findData(v.value<QScrollerProperties::OvershootPolicy>())); - } else if (m_item->min.userType() == m_frameRateType) { - m_combo->setCurrentIndex(m_combo->findData(v.value<QScrollerProperties::FrameRates>())); - } - } - } - - void controlChanged(int value) - { - bool combo = (m_combo && (sender() == m_combo)); - QString text; - - if (m_slider && !combo) { - switch (m_item->min.type()) { - case QMetaType::Float: - case QVariant::Double: { - qreal d = m_item->min.toReal() + qreal(value) * m_item->step.toReal(); - text = QString::number(d); - m_value = d / qreal(m_item->scaling); - break; - } - case QVariant::Int: { - int i = m_item->min.toInt() + qRound(qreal(value) * m_item->step.toReal()); - text = QString::number(i); - m_value = i / m_item->scaling; - break; - } - default: break; - } - } else if (m_combo && combo) { - if (m_item->min.type() == QVariant::EasingCurve) { - m_value = QVariant(QEasingCurve(static_cast<QEasingCurve::Type>(m_combo->itemData(value).toInt()))); - } else if (m_item->min.userType() == m_overshootPolicyType) { - m_value = QVariant::fromValue(static_cast<QScrollerProperties::OvershootPolicy>(m_combo->itemData(value).toInt())); - } else if (m_item->min.userType() == m_frameRateType) { - m_value = QVariant::fromValue(static_cast<QScrollerProperties::FrameRates>(m_combo->itemData(value).toInt())); - } - } - if (m_valueLabel) - m_valueLabel->setText(text); - if (m_widget && QScroller::scroller(m_widget)) { - QScrollerProperties properties = QScroller::scroller(m_widget)->scrollerProperties(); - properties.setScrollMetric(m_item->metric, m_value); - QScroller::scroller(m_widget)->setScrollerProperties(properties); - } - - m_resetButton->setEnabled(m_value != m_default_value); - } - - void reset() - { - QScrollerProperties properties = QScroller::scroller(m_widget)->scrollerProperties(); - properties.setScrollMetric(m_item->metric, m_value); - QScroller::scroller(m_widget)->setScrollerProperties(properties); - valueChanged(m_default_value); - } - -private: - MetricItem *m_item; - int m_frameRateType; - int m_overshootPolicyType; - - QWidget *m_widget; - QSlider *m_slider; - QComboBox *m_combo; - QLabel *m_nameLabel, *m_valueLabel; - QToolButton *m_resetButton; - - QVariant m_value, m_default_value; -}; - -#define METRIC(x) QScrollerProperties::x, #x - -MetricItem items[] = { - { METRIC(MousePressEventDelay), 1000, "ms", qreal(0), qreal(2000), qreal(10) }, - { METRIC(DragStartDistance), 1000, "mm", qreal(1), qreal(20), qreal(0.1) }, - { METRIC(DragVelocitySmoothingFactor), 1, "", qreal(0), qreal(1), qreal(0.1) }, - { METRIC(AxisLockThreshold), 1, "", qreal(0), qreal(1), qreal(0.01) }, - - { METRIC(ScrollingCurve), 1, "", QEasingCurve(), 0, 0 }, - { METRIC(DecelerationFactor), 1, "", qreal(0), qreal(3), qreal(0.01) }, - - { METRIC(MinimumVelocity), 1, "m/s", qreal(0), qreal(7), qreal(0.01) }, - { METRIC(MaximumVelocity), 1, "m/s", qreal(0), qreal(7), qreal(0.01) }, - { METRIC(MaximumClickThroughVelocity), 1, "m/s", qreal(0), qreal(7), qreal(0.01) }, - - { METRIC(AcceleratingFlickMaximumTime), 1000, "ms", qreal(100), qreal(5000), qreal(100) }, - { METRIC(AcceleratingFlickSpeedupFactor), 1, "", qreal(1), qreal(7), qreal(0.1) }, - - { METRIC(SnapPositionRatio), 1, "", qreal(0.1), qreal(0.9), qreal(0.1) }, - { METRIC(SnapTime), 1000, "ms", qreal(0), qreal(2000), qreal(10) }, - - { METRIC(OvershootDragResistanceFactor), 1, "", qreal(0), qreal(1), qreal(0.01) }, - { METRIC(OvershootDragDistanceFactor), 1, "", qreal(0), qreal(1), qreal(0.01) }, - { METRIC(OvershootScrollDistanceFactor), 1, "", qreal(0), qreal(1), qreal(0.01) }, - { METRIC(OvershootScrollTime), 1000, "ms", qreal(0), qreal(2000), qreal(10) }, - - { METRIC(HorizontalOvershootPolicy), 1, "", QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable), 0, 0 }, - { METRIC(VerticalOvershootPolicy), 1, "", QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable), 0, 0 }, - { METRIC(FrameRate), 1, "", QVariant::fromValue(QScrollerProperties::Standard), 0, 0 }, -}; - -#undef METRIC - -void SettingsWidget::addToGrid(QGridLayout *grid, QWidget *label, int widgetCount, ...) -{ - va_list args; - va_start(args, widgetCount); - - int rows = grid->rowCount(); - int cols = grid->columnCount(); - - if (label) { - if (m_smallscreen) - grid->addWidget(label, rows++, 0, 1, qMax(cols, widgetCount)); - else - grid->addWidget(label, rows, 0); - } - for (int i = 0; i < widgetCount; i++) { - if (QWidget *w = va_arg(args, QWidget *)) - grid->addWidget(w, rows, m_smallscreen ? i : i + 1); - } - va_end(args); -} - -SettingsWidget::SettingsWidget(bool smallscreen) - : QScrollArea() - , m_widget(0) - , m_snapoverlay(0) - , m_smallscreen(smallscreen) -{ - setWindowTitle(QLatin1String("Settings")); - QWidget *view = new QWidget(); - QVBoxLayout *layout = new QVBoxLayout(view); - QGroupBox *grp; - QGridLayout *grid; - - // GROUP: SCROLL METRICS - - grp = new QGroupBox(QLatin1String("Scroll Metrics")); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - - for (int i = 0; i < int(sizeof(items) / sizeof(items[0])); i++) { - MetricItemUpdater *u = new MetricItemUpdater(items + i); - u->setParent(this); - addToGrid(grid, u->nameLabel(), 3, u->valueControl(), u->valueLabel(), u->resetButton()); - m_metrics.append(u); - } - grp->setLayout(grid); - layout->addWidget(grp); - - // GROUP: SCROLL TO - - grp = new QGroupBox(QLatin1String("Scroll To")); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - - m_scrollx = new QSpinBox(); - m_scrolly = new QSpinBox(); - m_scrolltime = new QSpinBox(); - m_scrolltime->setRange(0, 10000); - m_scrolltime->setValue(1000); - m_scrolltime->setSuffix(QLatin1String(" ms")); - QPushButton *go = new QPushButton(QLatin1String("Go")); - connect(go, SIGNAL(clicked()), this, SLOT(scrollTo())); - connect(m_scrollx, SIGNAL(editingFinished()), this, SLOT(scrollTo())); - connect(m_scrolly, SIGNAL(editingFinished()), this, SLOT(scrollTo())); - connect(m_scrolltime, SIGNAL(editingFinished()), this, SLOT(scrollTo())); - grid->addWidget(new QLabel(QLatin1String("X:")), 0, 0); - grid->addWidget(m_scrollx, 0, 1); - grid->addWidget(new QLabel(QLatin1String("Y:")), 0, 2); - grid->addWidget(m_scrolly, 0, 3); - int row = smallscreen ? 1 : 0; - int col = smallscreen ? 0 : 4; - grid->addWidget(new QLabel(QLatin1String("in")), row, col++); - grid->addWidget(m_scrolltime, row, col++); - if (smallscreen) { - grid->addWidget(go, row, col + 1); - } else { - grid->addWidget(go, row, col); - grid->setColumnStretch(5, 1); - grid->setColumnStretch(6, 1); - } - grid->setColumnStretch(1, 1); - grid->setColumnStretch(3, 1); - grp->setLayout(grid); - layout->addWidget(grp); - - QLayout *snapbox = new QHBoxLayout(); - - // GROUP: SNAP POINTS X - - grp = new QGroupBox(QLatin1String("Snap Positions X")); - QBoxLayout *vbox = new QVBoxLayout(); - vbox->setSpacing(m_smallscreen ? 4 : 2); - m_snapx = new QComboBox(); - m_snapx->addItem(QLatin1String("No Snapping"), NoSnap); - m_snapx->addItem(QLatin1String("Snap to Interval"), SnapToInterval); - m_snapx->addItem(QLatin1String("Snap to List"), SnapToList); - connect(m_snapx, SIGNAL(currentIndexChanged(int)), this, SLOT(snapModeChanged(int))); - vbox->addWidget(m_snapx); - - m_snapxinterval = new QWidget(); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - m_snapxfirst = new QSpinBox(); - connect(m_snapxfirst, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("First:"), 0, 0); - grid->addWidget(m_snapxfirst, 0, 1); - m_snapxstep = new QSpinBox(); - connect(m_snapxstep, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("Interval:"), 0, 2); - grid->addWidget(m_snapxstep, 0, 3); - m_snapxinterval->setLayout(grid); - vbox->addWidget(m_snapxinterval); - m_snapxinterval->hide(); - - m_snapxlist = new QPlainTextEdit(); - m_snapxlist->setToolTip(QLatin1String("One snap position per line. Empty lines are ignored.")); - m_snapxlist->installEventFilter(this); - connect(m_snapxlist, SIGNAL(textChanged()), this, SLOT(snapPositionsChanged())); - vbox->addWidget(m_snapxlist); - m_snapxlist->hide(); - - vbox->addStretch(100); - grp->setLayout(vbox); - snapbox->addWidget(grp); - - // GROUP: SNAP POINTS Y - - grp = new QGroupBox(QLatin1String("Snap Positions Y")); - vbox = new QVBoxLayout(); - vbox->setSpacing(m_smallscreen ? 4 : 2); - m_snapy = new QComboBox(); - m_snapy->addItem(QLatin1String("No Snapping"), NoSnap); - m_snapy->addItem(QLatin1String("Snap to Interval"), SnapToInterval); - m_snapy->addItem(QLatin1String("Snap to List"), SnapToList); - connect(m_snapy, SIGNAL(currentIndexChanged(int)), this, SLOT(snapModeChanged(int))); - vbox->addWidget(m_snapy); - - m_snapyinterval = new QWidget(); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - m_snapyfirst = new QSpinBox(); - connect(m_snapyfirst, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("First:"), 0, 0); - grid->addWidget(m_snapyfirst, 0, 1); - m_snapystep = new QSpinBox(); - connect(m_snapystep, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("Interval:"), 0, 2); - grid->addWidget(m_snapystep, 0, 3); - m_snapyinterval->setLayout(grid); - vbox->addWidget(m_snapyinterval); - m_snapyinterval->hide(); - - m_snapylist = new QPlainTextEdit(); - m_snapylist->setToolTip(QLatin1String("One snap position per line. Empty lines are ignored.")); - m_snapylist->installEventFilter(this); - connect(m_snapylist, SIGNAL(textChanged()), this, SLOT(snapPositionsChanged())); - vbox->addWidget(m_snapylist); - m_snapylist->hide(); - - vbox->addStretch(100); - grp->setLayout(vbox); - snapbox->addWidget(grp); - - layout->addLayout(snapbox); - - layout->addStretch(100); - setWidget(view); - setWidgetResizable(true); -} - -void SettingsWidget::setScroller(QWidget *widget) -{ - delete m_snapoverlay; - if (m_widget) - m_widget->removeEventFilter(this); - QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(widget); - if (area) - widget = area->viewport(); - m_widget = widget; - m_widget->installEventFilter(this); - m_snapoverlay = new SnapOverlay(area); - QScrollerProperties properties = QScroller::scroller(widget)->scrollerProperties(); - - QMutableListIterator<MetricItemUpdater *> it(m_metrics); - while (it.hasNext()) - it.next()->setScroller(widget); - - if (!widget) - return; - - updateScrollRanges(); -} - -bool SettingsWidget::eventFilter(QObject *o, QEvent *e) -{ - if (o == m_widget && e->type() == QEvent::Resize) - updateScrollRanges(); - return false; -} - -void SettingsWidget::updateScrollRanges() -{ - QScrollPrepareEvent spe(QPoint(0, 0)); - QApplication::sendEvent(m_widget, &spe); - - QSizeF vp = spe.viewportSize(); - QRectF maxc = spe.contentPosRange(); - - m_scrollx->setRange(qRound(-vp.width()), qRound(maxc.width() + vp.width())); - m_scrolly->setRange(qRound(-vp.height()), qRound(maxc.height() + vp.height())); - - m_snapxfirst->setRange(maxc.left(), maxc.right()); - m_snapxstep->setRange(0, maxc.width()); - m_snapyfirst->setRange(maxc.top(), maxc.bottom()); - m_snapystep->setRange(0, maxc.height()); -} - -void SettingsWidget::scrollTo() -{ - if (QApplication::activePopupWidget()) - return; - if ((sender() == m_scrollx) && !m_scrollx->hasFocus()) - return; - if ((sender() == m_scrolly) && !m_scrolly->hasFocus()) - return; - if ((sender() == m_scrolltime) && !m_scrolltime->hasFocus()) - return; - - if (QScroller *scroller = QScroller::scroller(m_widget)) - scroller->scrollTo(QPointF(m_scrollx->value(), m_scrolly->value()), m_scrolltime->value()); -} - -void SettingsWidget::snapModeChanged(int mode) -{ - if (sender() == m_snapx) { - m_snapxmode = static_cast<SnapMode>(mode); - m_snapxinterval->setVisible(mode == SnapToInterval); - m_snapxlist->setVisible(mode == SnapToList); - snapPositionsChanged(); - } else if (sender() == m_snapy) { - m_snapymode = static_cast<SnapMode>(mode); - m_snapyinterval->setVisible(mode == SnapToInterval); - m_snapylist->setVisible(mode == SnapToList); - snapPositionsChanged(); - } -} - -void SettingsWidget::snapPositionsChanged() -{ - QScroller *s = QScroller::scroller(m_widget); - if (!s) - return; - - switch (m_snapxmode) { - case NoSnap: - s->setSnapPositionsX(QList<qreal>()); - m_snapoverlay->clear(Qt::Horizontal); - break; - case SnapToInterval: - s->setSnapPositionsX(m_snapxfirst->value(), m_snapxstep->value()); - m_snapoverlay->set(Qt::Horizontal, m_snapxfirst->value(), m_snapxstep->value()); - break; - case SnapToList: - s->setSnapPositionsX(toPositionList(m_snapxlist, m_snapxfirst->minimum(), m_snapxfirst->maximum())); - m_snapoverlay->set(Qt::Horizontal, toPositionList(m_snapxlist, m_snapxfirst->minimum(), m_snapxfirst->maximum())); - break; - } - switch (m_snapymode) { - case NoSnap: - s->setSnapPositionsY(QList<qreal>()); - m_snapoverlay->clear(Qt::Vertical); - break; - case SnapToInterval: - s->setSnapPositionsY(m_snapyfirst->value(), m_snapystep->value()); - m_snapoverlay->set(Qt::Vertical, m_snapyfirst->value(), m_snapystep->value()); - break; - case SnapToList: - s->setSnapPositionsY(toPositionList(m_snapylist, m_snapyfirst->minimum(), m_snapyfirst->maximum())); - m_snapoverlay->set(Qt::Vertical, toPositionList(m_snapylist, m_snapyfirst->minimum(), m_snapyfirst->maximum())); - break; - } -} - -QList<qreal> SettingsWidget::toPositionList(QPlainTextEdit *list, int vmin, int vmax) -{ - QList<qreal> snaps; - QList<QTextEdit::ExtraSelection> extrasel; - QTextEdit::ExtraSelection uline; - uline.format.setUnderlineColor(Qt::red); - uline.format.setUnderlineStyle(QTextCharFormat::WaveUnderline); - int line = 0; - - foreach (const QString &str, list->toPlainText().split(QLatin1Char('\n'))) { - ++line; - if (str.isEmpty()) - continue; - bool ok = false; - double d = str.toDouble(&ok); - if (ok && d >= vmin && d <= vmax) { - snaps << d; - } else { - QTextEdit::ExtraSelection esel = uline; - esel.cursor = QTextCursor(list->document()->findBlockByLineNumber(line - 1)); - esel.cursor.select(QTextCursor::LineUnderCursor); - extrasel << esel; - } - } - list->setExtraSelections(extrasel); - return snaps; -} - -#include "settingswidget.moc" |