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39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
#include <QRegExpValidator>
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#include <QLineEdit>
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#include <QString>
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#include <QApplication>
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#include <QKeyEvent>
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#include "combobox.hpp"
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ContentSelectorView::ComboBox::ComboBox(QWidget *parent) :
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QComboBox(parent)
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{
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mValidator = new QRegExpValidator(QRegExp("^[a-zA-Z0-9_]*$"), this); // Alpha-numeric + underscore
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setValidator(mValidator);
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setCompleter(0);
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setEnabled (true);
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setInsertPolicy(QComboBox::NoInsert);
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}
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void ContentSelectorView::ComboBox::paintEvent(QPaintEvent *)
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{
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QStylePainter painter(this);
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painter.setPen(palette().color(QPalette::Text));
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// draw the combobox frame, focusrect and selected etc.
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QStyleOptionComboBox opt;
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initStyleOption(&opt);
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painter.drawComplexControl(QStyle::CC_ComboBox, opt);
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// draw the icon and text
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if (!opt.editable && currentIndex() == -1) // <<< we adjust the text displayed when nothing is selected
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opt.currentText = mPlaceholderText;
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painter.drawControl(QStyle::CE_ComboBoxLabel, opt);
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}
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void ContentSelectorView::ComboBox::setPlaceholderText(const QString &text)
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{
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mPlaceholderText = text;
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}
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