include/QtPrintSupport/qprintpreviewwidget.h

0001 // Copyright (C) 2016 The Qt Company Ltd.
0002 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0003
0004 #ifndef QPRINTPREVIEWWIDGET_H
0005 #define QPRINTPREVIEWWIDGET_H
0006
0007 #include <QtPrintSupport/qtprintsupportglobal.h>
0008 #include <QtWidgets/qwidget.h>
0009 #include <QtPrintSupport/qprinter.h>
0010
0011 QT_REQUIRE_CONFIG(printpreviewwidget);
0012
0013 QT_BEGIN_NAMESPACE
0014
0015
0016 class QPrintPreviewWidgetPrivate;
0017
0018 class Q_PRINTSUPPORT_EXPORT QPrintPreviewWidget : public QWidget
0019 {
0020     Q_OBJECT
0021     Q_DECLARE_PRIVATE(QPrintPreviewWidget)
0022 public:
0023
0024     enum ViewMode {
0025         SinglePageView,
0026         FacingPagesView,
0027         AllPagesView
0028     };
0029
0030     enum ZoomMode {
0031         CustomZoom,
0032         FitToWidth,
0033         FitInView
0034     };
0035
0036     explicit QPrintPreviewWidget(QPrinter *printer, QWidget *parent = nullptr,
0037                                  Qt::WindowFlags flags = Qt::WindowFlags());
0038     explicit QPrintPreviewWidget(QWidget *parent = nullptr, Qt::WindowFlags flags = Qt::WindowFlags());
0039     ~QPrintPreviewWidget();
0040
0041     qreal zoomFactor() const;
0042     QPageLayout::Orientation orientation() const;
0043     ViewMode viewMode() const;
0044     ZoomMode zoomMode() const;
0045     int currentPage() const;
0046     int pageCount() const;
0047     void setVisible(bool visible) override;
0048
0049 public Q_SLOTS:
0050     void print();
0051
0052     void zoomIn(qreal zoom = 1.1);
0053     void zoomOut(qreal zoom = 1.1);
0054     void setZoomFactor(qreal zoomFactor);
0055     void setOrientation(QPageLayout::Orientation orientation);
0056     void setViewMode(ViewMode viewMode);
0057     void setZoomMode(ZoomMode zoomMode);
0058     void setCurrentPage(int pageNumber);
0059
0060     void fitToWidth();
0061     void fitInView();
0062     void setLandscapeOrientation();
0063     void setPortraitOrientation();
0064     void setSinglePageViewMode();
0065     void setFacingPagesViewMode();
0066     void setAllPagesViewMode();
0067
0068     void updatePreview();
0069
0070 Q_SIGNALS:
0071     void paintRequested(QPrinter *printer);
0072     void previewChanged();
0073
0074 private:
0075     Q_PRIVATE_SLOT(d_func(), void _q_fit())
0076     Q_PRIVATE_SLOT(d_func(), void _q_updateCurrentPage())
0077 };
0078
0079 QT_END_NAMESPACE
0080
0081 #endif // QPRINTPREVIEWWIDGET_H