set correct slider thumb position from current value
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parent
d68dd2e6cf
commit
07720c5f66
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@ -1,5 +1,6 @@
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#include "slider.h"
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#include <QPainter>
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#include <QStringBuilder>
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#include <QMouseEvent>
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#include <QDebug>
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@ -49,8 +50,8 @@ void Slider::paintEvent(QPaintEvent *event)
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painter.drawRect(rect().adjusted(0, 0, -1, -1));
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painter.setFont(QFont("monospace", 8));
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painter.drawText(8, 18, "Value: ");
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painter.drawText(8, 36, "Position: ");
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painter.drawText(8, 18, "Value: " % QString::number(value()));
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painter.drawText(8, 36, "Position: " % QString::number(sliderPosition()));
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#endif
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}
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@ -3,6 +3,7 @@
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#include "slider.h"
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#include <QPainter>
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#include "lib/style.h"
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#define THUMB_OUTER_SIZE 30
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@ -60,10 +61,21 @@ public:
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{
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Q_Q(const Slider);
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const int span = Qt::Horizontal == orientation
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? q->rect().width() - THUMB_OUTER_SIZE
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: q->rect().height() - THUMB_OUTER_SIZE;
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const int pos = Style::sliderPositionFromValue(
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q->minimum(),
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q->maximum(),
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q->value(),
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span,
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false);
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return Qt::Horizontal == orientation
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? QRectF(0, q->rect().height()/2 - THUMB_OUTER_SIZE/2,
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? QRectF(pos, q->rect().height()/2 - THUMB_OUTER_SIZE/2,
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THUMB_OUTER_SIZE, THUMB_OUTER_SIZE)
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: QRectF(q->rect().width()/2 - THUMB_OUTER_SIZE/2, 0,
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: QRectF(q->rect().width()/2 - THUMB_OUTER_SIZE/2, pos,
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THUMB_OUTER_SIZE, THUMB_OUTER_SIZE);
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}
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@ -10,7 +10,9 @@
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SliderExamples::SliderExamples(QWidget *parent)
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: ExampleList(parent),
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_edit(new QLineEdit),
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_slider(new Slider)
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_edit2(new QLineEdit),
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_slider(new Slider),
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_slider2(new Slider)
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{
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QLayout *mainLayout = widget()->layout();
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@ -96,6 +98,34 @@ SliderExamples::SliderExamples(QWidget *parent)
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connect(button, SIGNAL(pressed()), this, SLOT(flip()));
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}
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{
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QVBoxLayout *layout = new QVBoxLayout;
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QWidget *widget = new QWidget;
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widget->setLayout(layout);
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widget->setMinimumWidth(350);
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QHBoxLayout *hLayout = new QHBoxLayout;
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QPushButton *button = new QPushButton("Update value");
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hLayout->addWidget(_edit2);
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hLayout->addWidget(button);
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_slider2->setMinimumWidth(250);
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layout->addWidget(_slider2);
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layout->addLayout(hLayout);
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ExampleView *view = new ExampleView;
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view->setWidget(widget);
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Frame *frame = new Frame;
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frame->setCodeSnippet(
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"Slider *slider = new Slider;"
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);
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frame->setWidget(view);
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mainLayout->addWidget(frame);
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connect(button, SIGNAL(pressed()), this, SLOT(updateSliderValue()));
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}
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}
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SliderExamples::~SliderExamples()
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@ -112,3 +142,10 @@ void SliderExamples::flip()
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_slider->setOrientation(Qt::Horizontal == _slider->orientation() ?
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Qt::Vertical : Qt::Horizontal);
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}
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void SliderExamples::updateSliderValue()
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{
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int n = _edit2->text().toInt();
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qDebug() << n;
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_slider2->setValue(n);
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}
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@ -17,10 +17,13 @@ public:
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protected slots:
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void updateValue(int value);
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void flip();
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void updateSliderValue();
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private:
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QLineEdit *const _edit;
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QLineEdit *const _edit2;
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Slider *const _slider;
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Slider *const _slider2;
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};
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#endif // SLIDEREXAMPLES_H
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