fenix/PDF4QT
1
0
Fork 0
mirror of https://github.com/JakubMelka/PDF4QT.git synced 2025-06-05 21:59:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Tool for text selection (first part)

Browse Source
This commit is contained in:
Jakub Melka
2020-01-25 17:36:25 +01:00
parent 7ad4c46124
commit 95f6135482
15 changed files with 911 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

111
PdfForQtLib/sources/pdfdrawwidget.cpp
View File

@ -18,6 +18,7 @@
#include "pdfdrawwidget.h"
#include "pdfdrawspacecontroller.h"
#include "pdfcompiler.h"
#include "pdfwidgettool.h"
#include <QPainter>
#include <QGridLayout>
@ -31,6 +32,7 @@ namespace pdf
PDFWidget::PDFWidget(const PDFCMSManager* cmsManager, RendererEngine engine, int samplesCount, QWidget* parent) :
QWidget(parent),
m_cmsManager(cmsManager),
m_toolManager(nullptr),
m_drawWidget(nullptr),
m_horizontalScrollBar(nullptr),
m_verticalScrollBar(nullptr),
@ -177,6 +179,7 @@ PDFDrawWidgetBase<BaseWidget>::PDFDrawWidgetBase(PDFWidget* widget, QWidget* par
m_mouseOperation(MouseOperation::None)
{
this->setFocusPolicy(Qt::StrongFocus);
this->setMouseTracking(true);
}
template<typename BaseWidget>
@ -216,10 +219,21 @@ void PDFDrawWidgetBase<BaseWidget>::performMouseOperation(QPoint currentMousePos
template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::keyPressEvent(QKeyEvent* event)
{
QScrollBar* verticalScrollbar = m_widget->getVerticalScrollbar();
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
{
toolManager->keyPressEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
// Vertical navigation
QScrollBar* verticalScrollbar = m_widget->getVerticalScrollbar();
if (verticalScrollbar->isVisible())
{
constexpr std::pair<QKeySequence::StandardKey, PDFDrawWidgetProxy::Operation> keyToOperations[] =
@ -241,24 +255,52 @@ void PDFDrawWidgetBase<BaseWidget>::keyPressEvent(QKeyEvent* event)
}
}
}
updateCursor();
}
template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::mousePressEvent(QMouseEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
{
toolManager->mousePressEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
if (event->button() == Qt::LeftButton)
{
m_mouseOperation = MouseOperation::Translate;
m_lastMousePosition = event->pos();
setCursor(Qt::ClosedHandCursor);
}
updateCursor();
event->accept();
}
template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::mouseReleaseEvent(QMouseEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
{
toolManager->mouseReleaseEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
performMouseOperation(event->pos());
switch (m_mouseOperation)
@ -269,7 +311,6 @@ void PDFDrawWidgetBase<BaseWidget>::mouseReleaseEvent(QMouseEvent* event)
case MouseOperation::Translate:
{
m_mouseOperation = MouseOperation::None;
unsetCursor();
break;
}
@ -277,19 +318,83 @@ void PDFDrawWidgetBase<BaseWidget>::mouseReleaseEvent(QMouseEvent* event)
Q_ASSERT(false);
}
updateCursor();
event->accept();
}
template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::mouseMoveEvent(QMouseEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
{
toolManager->mouseMoveEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
performMouseOperation(event->pos());
updateCursor();
event->accept();
}
template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::updateCursor()
{
std::optional<QCursor> cursor;
if (PDFToolManager* toolManager = m_widget->getToolManager())
{
cursor = toolManager->getCursor();
}
if (!cursor)
{
switch (m_mouseOperation)
{
case MouseOperation::None:
cursor = QCursor(Qt::OpenHandCursor);
break;
case MouseOperation::Translate:
cursor = QCursor(Qt::ClosedHandCursor);
break;
default:
Q_ASSERT(false);
break;
}
}
if (cursor)
{
this->setCursor(*cursor);
}
else
{
this->unsetCursor();
}
}
template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::wheelEvent(QWheelEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
{
toolManager->wheelEvent(this, event);
if (event->isAccepted())
{
return;
}
}
Qt::KeyboardModifiers keyboardModifiers = QApplication::keyboardModifiers();
PDFDrawWidgetProxy* proxy = m_widget->getDrawWidgetProxy();