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QPrintPreviewWidget ClassThe QPrintPreviewWidget class provides a widget for previewing page layouts for printer output. More... #include <QPrintPreviewWidget>Inherits: QWidget. This class was introduced in Qt 4.4. Public Types
Public Functions
Reimplemented Public Functions
Public Slots
Signals
Protected Functions
Additional Inherited Members
Detailed DescriptionThe QPrintPreviewWidget class provides a widget for previewing page layouts for printer output. QPrintPreviewDialog uses a QPrintPreviewWidget internally, and the purpose of QPrintPreviewWidget is to make it possible to embed the preview into other widgets. It also makes it possible to build a different user interface around it than the default one provided with QPrintPreviewDialog. Using QPrintPreviewWidget is straightforward:
See also QPrinter, QPrintDialog, QPageSetupDialog, and QPrintPreviewDialog. Member Type Documentation
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| Constant | Value | Description |
|---|---|---|
| QPrintPreviewWidget::SinglePageView | 0 | A mode where single pages in the preview is viewed. |
| QPrintPreviewWidget::FacingPagesView | 1 | A mode where the facing pages in the preview is viewed. |
| QPrintPreviewWidget::AllPagesView | 2 | A view mode where all the pages in the preview is viewed. |
enum QPrintPreviewWidget::ZoomMode
This enum is used to describe zoom mode of the preview widget.
| Constant | Value | Description |
|---|---|---|
| QPrintPreviewWidget::CustomZoom | 0 | The zoom is set to a custom zoom value. |
| QPrintPreviewWidget::FitToWidth | 1 | This mode fits the current page to the width of the view. |
| QPrintPreviewWidget::FitInView | 2 | This mode fits the current page inside the view. |
Member Function Documentation
QPrintPreviewWidget::QPrintPreviewWidget(QPrinter * printer, QWidget * parent = 0, Qt::WindowFlags flags = 0)
Constructs a QPrintPreviewWidget based on printer and with parent as the parent widget. The widget flags flags are passed on to the QWidget constructor.
See also QWidget::setWindowFlags().
QPrintPreviewWidget::QPrintPreviewWidget(QWidget * parent = 0, Qt::WindowFlags flags = 0)
This is an overloaded function.
This will cause QPrintPreviewWidget to create an internal, default constructed QPrinter object, which will be used to generate the preview.
QPrintPreviewWidget::~QPrintPreviewWidget()
Destroys the QPrintPreviewWidget.
int QPrintPreviewWidget::currentPage() const
Returns the currently viewed page in the preview.
See also setCurrentPage().
void QPrintPreviewWidget::fitInView() [slot]
This is a convenience function and is the same as calling setZoomMode(QPrintPreviewWidget::FitInView).
void QPrintPreviewWidget::fitToWidth() [slot]
This is a convenience function and is the same as calling setZoomMode(QPrintPreviewWidget::FitToWidth).
QPrinter::Orientation QPrintPreviewWidget::orientation() const
Returns the current orientation of the preview. This value is obtained from the QPrinter object associated with the preview.
See also setOrientation().
int QPrintPreviewWidget::pageCount() const
Returns the number of pages in the preview.
This function was introduced in Qt 4.6.
void QPrintPreviewWidget::paintRequested(QPrinter * printer) [signal]
This signal is emitted when the preview widget needs to generate a set of preview pages. printer is the printer associated with this preview widget.
void QPrintPreviewWidget::previewChanged() [signal]
This signal is emitted whenever the preview widget has changed some internal state, such as the orientation.
void QPrintPreviewWidget::print() [slot]
Prints the preview to the printer associated with the preview.
void QPrintPreviewWidget::setAllPagesViewMode() [slot]
This is a convenience function and is the same as calling setViewMode(QPrintPreviewWidget::AllPagesView).
void QPrintPreviewWidget::setCurrentPage(int page) [slot]
Sets the current page in the preview. This will cause the view to skip to the beginning of page.
See also currentPage().
void QPrintPreviewWidget::setFacingPagesViewMode() [slot]
This is a convenience function and is the same as calling setViewMode(QPrintPreviewWidget::FacingPagesView).
void QPrintPreviewWidget::setLandscapeOrientation() [slot]
This is a convenience function and is the same as calling setOrientation(QPrinter::Landscape).
void QPrintPreviewWidget::setOrientation(QPrinter::Orientation orientation) [slot]
Sets the current orientation to orientation. This value will be set on the QPrinter object associated with the preview.
See also orientation().
void QPrintPreviewWidget::setPortraitOrientation() [slot]
This is a convenience function and is the same as calling setOrientation(QPrinter::Portrait).
void QPrintPreviewWidget::setSinglePageViewMode() [slot]
This is a convenience function and is the same as calling setViewMode(QPrintPreviewWidget::SinglePageView).
void QPrintPreviewWidget::setViewMode(ViewMode mode) [slot]
Sets the view mode to mode. The default view mode is SinglePageView.
See also viewMode().
void QPrintPreviewWidget::setVisible(bool visible) [virtual]
Reimplemented from QWidget::setVisible().
void QPrintPreviewWidget::setZoomFactor(qreal factor) [slot]
Sets the zoom factor of the view to factor. For example, a value of 1.0 indicates an unscaled view, which is approximately the size the view will have on paper. A value of 0.5 will halve the size of the view, while a value of 2.0 will double the size of the view.
See also zoomFactor().
void QPrintPreviewWidget::setZoomMode(ZoomMode zoomMode) [slot]
Sets the zoom mode to zoomMode. The default zoom mode is FitInView.
See also zoomMode(), viewMode(), and setViewMode().
void QPrintPreviewWidget::updatePreview() [slot]
This function updates the preview, which causes the paintRequested() signal to be emitted.
ViewMode QPrintPreviewWidget::viewMode() const
Returns the current view mode. The default view mode is SinglePageView.
See also setViewMode().
qreal QPrintPreviewWidget::zoomFactor() const
Returns the zoom factor of the view.
See also setZoomFactor().
void QPrintPreviewWidget::zoomIn(qreal factor = 1.1) [slot]
Zooms the current view in by factor. The default value for factor is 1.1, which means the view will be scaled up by 10%.
ZoomMode QPrintPreviewWidget::zoomMode() const
Returns the current zoom mode.
See also setZoomMode(), viewMode(), and setViewMode().
void QPrintPreviewWidget::zoomOut(qreal factor = 1.1) [slot]
Zooms the current view out by factor. The default value for factor is 1.1, which means the view will be scaled down by 10%.