30 lines
1,004 B
C++
30 lines
1,004 B
C++
#include "noscrollcombobox.h"
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#include <QCompleter>
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NoScrollComboBox::NoScrollComboBox(QWidget *parent)
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: QComboBox(parent)
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{
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// Don't let scrolling hijack focus.
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setFocusPolicy(Qt::StrongFocus);
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// Make speed a priority when loading comboboxes.
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setMinimumContentsLength(24);// an arbitrary limit
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setSizeAdjustPolicy(QComboBox::AdjustToMinimumContentsLengthWithIcon);
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// Allow items to be searched by any part of the word, displaying all matches.
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setEditable(true);// can set to false manually when using
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this->completer()->setCompletionMode(QCompleter::PopupCompletion);
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this->completer()->setFilterMode(Qt::MatchContains);
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QRegularExpression re("[^\\s]*");
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QValidator *validator = new QRegularExpressionValidator(re);
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this->setValidator(validator);
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}
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void NoScrollComboBox::wheelEvent(QWheelEvent *event)
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{
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// Only allow scrolling to modify contents when it explicitly has focus.
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if (hasFocus())
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QComboBox::wheelEvent(event);
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}
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