mirror of
https://github.com/JakubMelka/PDF4QT.git
synced 2025-06-05 21:59:17 +02:00
Finishing editation of text field - also 'Comb' functionality
This commit is contained in:
Jakub Melka
@ -866,7 +866,7 @@ void PDFFormManager::mousePressEvent(QWidget* widget, QMouseEvent* event)
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setFocusToEditor(info.editor);
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}
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info.editor->mousePressEvent(widget, event);
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info.editor->mousePressEvent(widget, event, info.mousePosition);
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grabMouse(info, event);
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}
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else if (!isMouseGrabbed())
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@ -876,6 +876,30 @@ void PDFFormManager::mousePressEvent(QWidget* widget, QMouseEvent* event)
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}
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}
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void PDFFormManager::mouseDoubleClickEvent(QWidget* widget, QMouseEvent* event)
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{
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if (!hasForm())
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{
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return;
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}
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MouseEventInfo info = getMouseEventInfo(widget, event->pos());
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if (info.isValid())
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{
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Q_ASSERT(info.editor);
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info.editor->mouseDoubleClickEvent(widget, event, info.mousePosition);
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// If mouse is grabbed, then event is accepted always (because
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// we get Press event, when we grabbed the mouse, then we will
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// wait for corresponding release event while all mouse move events
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// will be accepted, even if editor doesn't accept them.
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if (isMouseGrabbed())
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{
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event->accept();
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}
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}
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}
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void PDFFormManager::mouseReleaseEvent(QWidget* widget, QMouseEvent* event)
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{
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if (!hasForm())
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@ -887,7 +911,7 @@ void PDFFormManager::mouseReleaseEvent(QWidget* widget, QMouseEvent* event)
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if (info.isValid())
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{
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Q_ASSERT(info.editor);
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info.editor->mouseReleaseEvent(widget, event);
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info.editor->mouseReleaseEvent(widget, event, info.mousePosition);
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ungrabMouse(info, event);
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}
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}
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@ -903,7 +927,7 @@ void PDFFormManager::mouseMoveEvent(QWidget* widget, QMouseEvent* event)
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if (info.isValid())
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{
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Q_ASSERT(info.editor);
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info.editor->mouseMoveEvent(widget, event);
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info.editor->mouseMoveEvent(widget, event, info.mousePosition);
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// If mouse is grabbed, then event is accepted always (because
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// we get Press event, when we grabbed the mouse, then we will
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@ -1172,22 +1196,32 @@ void PDFFormFieldWidgetEditor::keyReleaseEvent(QWidget* widget, QKeyEvent* event
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Q_UNUSED(event);
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}
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void PDFFormFieldWidgetEditor::mousePressEvent(QWidget* widget, QMouseEvent* event)
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void PDFFormFieldWidgetEditor::mousePressEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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Q_UNUSED(widget);
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Q_UNUSED(event);
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Q_UNUSED(mousePagePosition);
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}
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void PDFFormFieldWidgetEditor::mouseReleaseEvent(QWidget* widget, QMouseEvent* event)
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void PDFFormFieldWidgetEditor::mouseDoubleClickEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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Q_UNUSED(widget);
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Q_UNUSED(event);
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Q_UNUSED(mousePagePosition);
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}
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void PDFFormFieldWidgetEditor::mouseMoveEvent(QWidget* widget, QMouseEvent* event)
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void PDFFormFieldWidgetEditor::mouseReleaseEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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Q_UNUSED(widget);
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Q_UNUSED(event);
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Q_UNUSED(mousePagePosition);
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}
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void PDFFormFieldWidgetEditor::mouseMoveEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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Q_UNUSED(widget);
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Q_UNUSED(event);
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Q_UNUSED(mousePagePosition);
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}
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void PDFFormFieldWidgetEditor::setFocus(bool hasFocus)
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@ -1281,6 +1315,28 @@ PDFFormFieldAbstractButtonEditor::PDFFormFieldAbstractButtonEditor(PDFFormManage
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}
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void PDFFormFieldAbstractButtonEditor::shortcutOverrideEvent(QWidget* widget, QKeyEvent* event)
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{
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Q_UNUSED(widget);
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switch (event->key())
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{
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case Qt::Key_Enter:
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case Qt::Key_Return:
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case Qt::Key_Left:
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case Qt::Key_Right:
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case Qt::Key_Up:
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case Qt::Key_Down:
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{
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event->accept();
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break;
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}
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default:
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break;
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}
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}
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void PDFFormFieldAbstractButtonEditor::keyPressEvent(QWidget* widget, QKeyEvent* event)
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{
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switch (event->key())
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@ -1326,9 +1382,10 @@ void PDFFormFieldAbstractButtonEditor::keyReleaseEvent(QWidget* widget, QKeyEven
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}
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}
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void PDFFormFieldAbstractButtonEditor::mousePressEvent(QWidget* widget, QMouseEvent* event)
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void PDFFormFieldAbstractButtonEditor::mousePressEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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Q_UNUSED(widget);
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Q_UNUSED(mousePagePosition);
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if (event->button() == Qt::LeftButton)
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{
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@ -1464,6 +1521,46 @@ void PDFFormFieldTextBoxEditor::keyPressEvent(QWidget* widget, QKeyEvent* event)
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}
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}
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void PDFFormFieldTextBoxEditor::mousePressEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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if (event->button() == Qt::LeftButton)
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{
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const int cursorPosition = m_textEdit.getCursorPositionFromWidgetPosition(mousePagePosition, m_hasFocus);
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m_textEdit.setCursorPosition(cursorPosition, event->modifiers() & Qt::ShiftModifier);
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event->accept();
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widget->update();
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}
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}
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void PDFFormFieldTextBoxEditor::mouseDoubleClickEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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if (event->button() == Qt::LeftButton)
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{
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const int cursorPosition = m_textEdit.getCursorPositionFromWidgetPosition(mousePagePosition, m_hasFocus);
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m_textEdit.setCursorPosition(cursorPosition, false);
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m_textEdit.setCursorPosition(m_textEdit.getCursorWordBackward(), false);
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m_textEdit.setCursorPosition(m_textEdit.getCursorWordForward(), true);
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event->accept();
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widget->update();
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}
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}
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void PDFFormFieldTextBoxEditor::mouseMoveEvent(QWidget* widget, QMouseEvent* event, const QPointF& mousePagePosition)
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{
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// We must test, if left mouse button is pressed while
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// we are moving the mouse - if yes, then select the text.
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if (event->buttons() & Qt::LeftButton)
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{
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const int cursorPosition = m_textEdit.getCursorPositionFromWidgetPosition(mousePagePosition, m_hasFocus);
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m_textEdit.setCursorPosition(cursorPosition, true);
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event->accept();
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widget->update();
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}
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}
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void PDFFormFieldTextBoxEditor::draw(AnnotationDrawParameters& parameters) const
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{
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m_textEdit.draw(parameters, true);
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@ -1515,6 +1612,19 @@ void PDFTextEditPseudowidget::shortcutOverrideEvent(QWidget* widget, QKeyEvent*
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default:
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break;
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}
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if (!event->text().isEmpty())
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{
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event->accept();
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for (const QChar& character : event->text())
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{
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if (!character.isPrint())
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{
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event->ignore();
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break;
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}
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}
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}
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}
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void PDFTextEditPseudowidget::keyPressEvent(QWidget* widget, QKeyEvent* event)
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@ -1836,6 +1946,7 @@ void PDFTextEditPseudowidget::setAppearance(const PDFAnnotationDefaultAppearance
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QFont font(appearance.getFontName());
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font.setHintingPreference(QFont::PreferNoHinting);
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font.setPixelSize(qCeil(fontSize));
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font.setStyleStrategy(QFont::ForceOutline);
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m_textLayout.setFont(font);
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QTextOption option = m_textLayout.textOption();
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@ -1956,56 +2067,232 @@ void PDFTextEditPseudowidget::performInsertText(const QString& text)
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updateTextLayout();
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}
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QMatrix PDFTextEditPseudowidget::createTextBoxTransformMatrix(bool edit) const
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{
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QMatrix matrix;
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matrix.translate(m_widgetRect.left(), m_widgetRect.bottom());
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matrix.scale(1.0, -1.0);
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if (edit && !isComb() && m_textLayout.isValidCursorPosition(m_positionCursor))
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{
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// Jakub Melka: we must scroll the control, so cursor is always
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// visible in the widget area. If we are not editing, this not the
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// case, because we always show the text from the beginning.
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const QTextLine line = m_textLayout.lineForTextPosition(m_positionCursor);
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if (line.isValid())
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{
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const qreal xCursorPosition = line.cursorToX(m_positionCursor);
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if (xCursorPosition >= m_widgetRect.width())
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{
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const qreal delta = xCursorPosition - m_widgetRect.width();
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matrix.translate(-delta, 0.0);
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}
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// Check, if we aren't outside of y position
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const qreal lineSpacing = line.leadingIncluded() ? line.height() : line.leading() + line.height();
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const qreal lineBottom = lineSpacing * (line.lineNumber() + 1);
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if (lineBottom >= m_widgetRect.height())
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{
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const qreal delta = lineBottom - m_widgetRect.height();
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matrix.translate(0.0, -delta);
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}
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}
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}
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return matrix;
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}
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std::vector<int> PDFTextEditPseudowidget::getCursorPositions() const
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{
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std::vector<int> result;
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result.reserve(m_editText.length());
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result.push_back(0);
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int currentPos = 0;
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while (currentPos < m_editText.length())
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{
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currentPos = m_textLayout.nextCursorPosition(currentPos, QTextLayout::SkipCharacters);
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result.push_back(currentPos);
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}
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return result;
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}
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void PDFTextEditPseudowidget::draw(AnnotationDrawParameters& parameters, bool edit) const
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{
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pdf::PDFPainterStateGuard guard(parameters.painter);
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parameters.boundingRectangle = parameters.annotation->getRectangle();
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QPainter* painter = parameters.painter;
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painter->translate(parameters.boundingRectangle.bottomLeft());
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painter->scale(1.0, -1.0);
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QPalette palette = QApplication::palette();
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QVector<QTextLayout::FormatRange> selections;
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QTextLayout::FormatRange defaultFormat;
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defaultFormat.start = getPositionStart();
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defaultFormat.length = getTextLength();
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defaultFormat.format.clearBackground();
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defaultFormat.format.setForeground(QBrush(m_textColor, Qt::SolidPattern));
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// If we are editing, draw selections
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if (edit && isTextSelected())
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auto getAdjustedColor = [¶meters](QColor color)
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{
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QTextLayout::FormatRange before = defaultFormat;
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QTextLayout::FormatRange after = defaultFormat;
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if (parameters.invertColors)
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{
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return invertColor(color);
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}
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before.start = getPositionStart();
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before.length = m_selectionStart;
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after.start = m_selectionEnd;
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after.length = getTextLength() - m_selectionEnd;
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return color;
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};
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QPalette palette = QApplication::palette();
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QTextLayout::FormatRange selectedFormat = defaultFormat;
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selectedFormat.start = m_selectionStart;
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selectedFormat.length = getSelectionLength();
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selectedFormat.format.setForeground(palette.brush(QPalette::HighlightedText));
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selectedFormat.format.setBackground(palette.brush(QPalette::Highlight));
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QPainter* painter = parameters.painter;
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painter->setClipRect(parameters.boundingRectangle, Qt::IntersectClip);
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painter->setWorldMatrix(createTextBoxTransformMatrix(edit), true);
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painter->setPen(getAdjustedColor(Qt::black));
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selections = { before, selectedFormat, after};
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if (isComb())
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{
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const qreal combCount = qMax(m_maxTextLength, 1);
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qreal combWidth = m_widgetRect.width() / combCount;
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QRectF combRect(0.0, 0.0, combWidth, m_widgetRect.height());
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painter->setFont(m_textLayout.font());
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QColor textColor = getAdjustedColor(palette.color(QPalette::Text));
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QColor highlightTextColor = getAdjustedColor(palette.color(QPalette::HighlightedText));
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QColor highlightColor = getAdjustedColor(palette.color(QPalette::Highlight));
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std::vector<int> positions = getCursorPositions();
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for (size_t i = 1; i < positions.size(); ++i)
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{
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if (positions[i - 1] >= m_selectionStart && positions[i] - 1 < m_selectionEnd)
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{
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// We are in text selection
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painter->fillRect(combRect, highlightColor);
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painter->setPen(highlightTextColor);
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}
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else
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{
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// We are not in text selection
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painter->setPen(textColor);
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}
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int length = positions[i] - positions[i - 1];
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QString text = m_displayText.mid(positions[i - 1], length);
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painter->drawText(combRect, Qt::AlignCenter, text);
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// Draw the cursor?
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if (edit && m_positionCursor >= positions[i - 1] && m_positionCursor < positions[i])
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{
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QRectF cursorRect(combRect.left(), combRect.bottom() - 1, combRect.width(), 1);
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painter->fillRect(cursorRect, textColor);
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}
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combRect.translate(combWidth, 0.0);
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}
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// Draw the cursor onto next unfilled cell?
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if (edit && m_positionCursor == getPositionEnd())
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{
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QRectF cursorRect(combRect.left(), combRect.bottom() - 1, combRect.width(), 1);
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painter->fillRect(cursorRect, textColor);
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}
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}
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else
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{
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selections.push_back(defaultFormat);
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QVector<QTextLayout::FormatRange> selections;
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QTextLayout::FormatRange defaultFormat;
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defaultFormat.start = getPositionStart();
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defaultFormat.length = getTextLength();
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defaultFormat.format.clearBackground();
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defaultFormat.format.setForeground(QBrush(getAdjustedColor(m_textColor), Qt::SolidPattern));
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// If we are editing, draw selections
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if (edit && isTextSelected())
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{
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QTextLayout::FormatRange before = defaultFormat;
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QTextLayout::FormatRange after = defaultFormat;
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before.start = getPositionStart();
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before.length = m_selectionStart;
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after.start = m_selectionEnd;
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after.length = getTextLength() - m_selectionEnd;
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QTextLayout::FormatRange selectedFormat = defaultFormat;
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selectedFormat.start = m_selectionStart;
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selectedFormat.length = getSelectionLength();
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selectedFormat.format.setForeground(QBrush(getAdjustedColor(palette.color(QPalette::HighlightedText)), Qt::SolidPattern));
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selectedFormat.format.setBackground(QBrush(getAdjustedColor(palette.color(QPalette::Highlight)), Qt::SolidPattern));
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selections = { before, selectedFormat, after};
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}
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else
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{
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selections.push_back(defaultFormat);
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}
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// Draw text
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m_textLayout.draw(painter, QPointF(0.0, 0.0), selections, QRectF());
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// If we are editing, also draw text
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if (edit)
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{
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m_textLayout.drawCursor(painter, QPointF(0.0, 0.0), m_positionCursor);
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}
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}
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}
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// Draw text
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m_textLayout.draw(painter, QPointF(0.0, 0.0), selections, QRectF(0, 0, parameters.boundingRectangle.width(), parameters.boundingRectangle.height()));
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int PDFTextEditPseudowidget::getCursorPositionFromWidgetPosition(const QPointF& point, bool edit) const
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{
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QMatrix textBoxSpaceToPageSpace = createTextBoxTransformMatrix(edit);
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QMatrix pageSpaceToTextBoxSpace = textBoxSpaceToPageSpace.inverted();
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// If we are editing, also draw text
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if (edit)
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QPointF textBoxPoint = pageSpaceToTextBoxSpace.map(point);
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if (isComb())
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{
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m_textLayout.drawCursor(painter, QPointF(0.0, 0.0), m_positionCursor);
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// If it is comb, then characters are spaced equidistantly
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const qreal x = qBound(0.0, textBoxPoint.x(), m_widgetRect.width());
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const size_t position = qFloor(x * qreal(m_maxTextLength) / qreal(m_widgetRect.width()));
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std::vector<int> positions = getCursorPositions();
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if (position < positions.size())
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||||
{
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return positions[position];
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||||
}
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return positions.back();
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}
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else if (m_textLayout.lineCount() > 0)
|
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{
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QTextLine line;
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qreal yPos = 0.0;
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// Find line under cursor
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for (int i = 0; i < m_textLayout.lineCount(); ++i)
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||||
{
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QTextLine currentLine = m_textLayout.lineAt(i);
|
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const qreal lineSpacing = currentLine.leadingIncluded() ? currentLine.height() : currentLine.leading() + currentLine.height();
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||||
const qreal yNextPos = yPos + lineSpacing;
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||||
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if (textBoxPoint.y() >= yPos && textBoxPoint.y() < yNextPos)
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||||
{
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||||
line = currentLine;
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||||
break;
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||||
}
|
||||
|
||||
yPos = yNextPos;
|
||||
}
|
||||
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||||
// If no line is found, select last line
|
||||
if (!line.isValid())
|
||||
{
|
||||
if (textBoxPoint.y() < 0.0)
|
||||
{
|
||||
line = m_textLayout.lineAt(0);
|
||||
}
|
||||
else
|
||||
{
|
||||
line = m_textLayout.lineAt(m_textLayout.lineCount() - 1);
|
||||
}
|
||||
}
|
||||
|
||||
return line.xToCursor(textBoxPoint.x(), QTextLine::CursorBetweenCharacters);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void PDFTextEditPseudowidget::updateTextLayout()
|
||||
@ -2049,7 +2336,7 @@ void PDFTextEditPseudowidget::updateTextLayout()
|
||||
int length = 0;
|
||||
int currentPos = 0;
|
||||
|
||||
while (currentPos <= m_editText.length())
|
||||
while (currentPos < m_editText.length())
|
||||
{
|
||||
currentPos = m_textLayout.nextCursorPosition(currentPos, QTextLayout::SkipCharacters);
|
||||
++length;
|
||||
|
||||
Reference in New Issue
Block a user