145 lines
3.6 KiB
C++
145 lines
3.6 KiB
C++
// This file Copyright © Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#include <qtguiglobal.h>
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#if QT_CONFIG(accessibility)
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#include <QMetaProperty>
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#include "AccessibleSqueezeLabel.h"
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#include "SqueezeLabel.h"
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AccessibleSqueezeLabel::AccessibleSqueezeLabel(QWidget* widget)
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: QAccessibleWidget(widget, QAccessible::EditableText)
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{
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}
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QString AccessibleSqueezeLabel::text(QAccessible::Text kind) const
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{
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switch (kind)
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{
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case QAccessible::Value:
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return label()->text();
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case QAccessible::Description:
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return !label()->accessibleDescription().isEmpty() || label()->toolTip() != label()->text() ?
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QAccessibleWidget::text(kind) :
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QString{};
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default:
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return QAccessibleWidget::text(kind);
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}
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}
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QAccessible::State AccessibleSqueezeLabel::state() const
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{
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auto result = QAccessibleWidget::state();
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result.readOnly = true;
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result.selectableText = true;
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return result;
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}
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void* AccessibleSqueezeLabel::interface_cast(QAccessible::InterfaceType ifaceType)
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{
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if (ifaceType == QAccessible::TextInterface)
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{
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return static_cast<QAccessibleTextInterface*>(this);
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}
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return QAccessibleWidget::interface_cast(ifaceType);
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}
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void AccessibleSqueezeLabel::selection(int selectionIndex, int* startOffset, int* endOffset) const
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{
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if (selectionIndex != 0)
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{
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*startOffset = 0;
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*endOffset = 0;
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return;
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}
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*startOffset = label()->selectionStart();
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*endOffset = *startOffset + label()->selectedText().size();
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}
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int AccessibleSqueezeLabel::selectionCount() const
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{
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return label()->hasSelectedText() ? 1 : 0;
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}
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void AccessibleSqueezeLabel::addSelection(int startOffset, int endOffset)
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{
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setSelection(0, startOffset, endOffset);
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}
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void AccessibleSqueezeLabel::removeSelection(int selectionIndex)
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{
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setSelection(selectionIndex, 0, 0);
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}
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void AccessibleSqueezeLabel::setSelection(int selectionIndex, int startOffset, int endOffset)
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{
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if (selectionIndex != 0 || startOffset > endOffset)
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{
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return;
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}
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label()->setSelection(startOffset, endOffset - startOffset);
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}
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int AccessibleSqueezeLabel::cursorPosition() const
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{
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// NOTE: Due to QLabel implementation specifics, this will return -1 unless some part of text is selected :(
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return label()->selectionStart();
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}
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void AccessibleSqueezeLabel::setCursorPosition(int position)
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{
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setSelection(0, position, position);
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}
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QString AccessibleSqueezeLabel::text(int startOffset, int endOffset) const
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{
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return startOffset > endOffset ? QString{} : label()->text().mid(startOffset, endOffset - startOffset);
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}
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int AccessibleSqueezeLabel::characterCount() const
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{
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return label()->text().size();
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}
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QRect AccessibleSqueezeLabel::characterRect(int /*offset*/) const
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{
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// NOTE: Can't be easily implemented as needed info is internal to QLabel :(
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return {};
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}
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int AccessibleSqueezeLabel::offsetAtPoint(QPoint const& /*point*/) const
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{
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// NOTE: Can't be easily implemented as needed info is internal to QLabel :(
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return -1;
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}
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void AccessibleSqueezeLabel::scrollToSubstring(int startIndex, int endIndex)
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{
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setCursorPosition(endIndex);
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setCursorPosition(startIndex);
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}
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QString AccessibleSqueezeLabel::attributes(int offset, int* startOffset, int* endOffset) const
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{
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*startOffset = offset;
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*endOffset = offset;
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return {};
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}
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SqueezeLabel* AccessibleSqueezeLabel::label() const
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{
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return qobject_cast<SqueezeLabel*>(object());
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}
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#endif // QT_CONFIG(accessibility)
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