PrintPreview.h

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/*--------------------------------------------------------------------------------------------
Copyright (c) 2019, NDEVR LLC
tyler.parke@ndevr.org
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 |   \ |  | | |  \ \ | |___  \ \ / /  |  |__)  |
 |  . \|  | | |__/ / | |___   \ V /   |   _   /
 |  |\    |_|_____/__|_____|___\_/____|  | \  \
 |__| \__________________________________|  \__\
 
Subject to the terms of the Enterprise+ Agreement, NDEVR hereby grants 
Licensee a limited, non-exclusive, non-transferable, royalty-free license 
(without the right to sublicense) to use the API solely for the purpose of 
Licensee's internal development efforts to develop applications for which 
the API was provided.
 
The above copyright notice and this permission notice shall be included in all 
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
 
Library: Widgets
File: PrintPreview
Included in API: True
Author(s): Tyler Parke
 *-----------------------------------------------------------------------------------------**/
#pragma once
#include "DLLInfo.h"
#include <NDEVR/Vector.h>
#include <NDEVR/Buffer.h>
#include <NDEVR/Pointer.h>
#include <QWidget>
#include <QImage>
namespace Ui
{
    class PrintPreviewUI;
}
class QPrintDialog;
class QPageSetupDialog;
class QPrintPreviewWidget;
class QPrinter;
namespace NDEVR
{
    class WidgetIterator;
    class Button;
    /**--------------------------------------------------------------------------------------------------
    \brief A dialog that shows a PrintPreview of a given widgets, reports, or images. User can modify
        print settings and print directly from this dialog.
    **/
    class NDEVR_PRINT_API PrintPreview : public QWidget
    {
        Q_OBJECT
    public:
        PrintPreview(QWidget* parent = nullptr);
        ~PrintPreview();
        void clearImages();
        void setImages(const Buffer<QImage, uint04, ObjectAllocator<false>>& images, const Buffer<QWidget*>& custom_print_options = Buffer<QWidget*>());
        void setImage(uint04 index, const QImage& image, const Buffer<QWidget*>& custom_print_options = Buffer<QWidget*>());
        void setPreferredSize(QSize prefered_size);
        void resetPreferredSize();
        void printWidget(QWidget* widget, const Buffer<QWidget*>& custom_print_options = Buffer<QWidget*>());
        void printWidgets(const Buffer<QWidget*>& widgets, const Buffer<QWidget*>& custom_print_options = Buffer<QWidget*>());
        void printWidgets(const DynamicPointer<WidgetIterator>& reports, const Buffer<QWidget*>& custom_print_options = Buffer<QWidget*>());
        void setCustomPrintSettingsWidgets(const Buffer<QWidget*>& widgets);
        Vector<2, fltp08> customPercent() const;
        Vector<2, uint04> pageResolution() const;
        Vector<2, uint04> scaledPageResolution() const;
        bool isZoomMode() const;
        bool isCustomPercent() const;
        
        virtual QSize sizeHint() const override;
        QPalette printPalette() const;
        void setPrintFont(const QFont& font);
        bool event(QEvent* event) override;
        static bool SystemHasPrinters();
        QPrintDialog* printSetupDialog();
        QPageSetupDialog* pageSetupDialog();
    public:
        static PrintPreview* PrintPreviewWidget();
        static PrintPreview* PrintPreviewWidget(const Buffer<QImage>& images);
    signals:
        void pageResolutionChangedSignal(Vector<2, uint04> pixel_size);
        void printedSignal();
        void zoomModeChangedSignal();
        void finishedSignal();
    protected slots:
        void fitComboChanged();
        void settingsChanged();
        void pageChanged();
        void fontChanged();
        void Print(QPrinter *printer);
        void choosePrinterAccepted(QPrinter* printer);
    protected:
        void setToDefaultPrinter();
        void printImages(QPrinter* printer);
        void printWidgets(QPrinter* printer);
        void printWidget(QWidget* widget, QPainter& painter, QPoint offset);
    protected:
        Vector<2, uint04> m_last_resolution;
        bool m_last_is_zoom;
        Buffer<QImage, uint04, ObjectAllocator<false>> m_images;
        DynamicPointer<WidgetIterator> m_widgets;
        QPrinter* m_printer;
        QPrintDialog* m_print_setup_dialog;
        QPrintPreviewWidget* m_print_preview;
        QPageSetupDialog* m_page_setup_dialog;
        Button* m_print_button;
        Button* m_print_settings_button;
        Button* m_page_settings_button;
        Buffer<QWidget*> m_custom_print_settings_widgets;
        QFont m_print_font;
        bool m_is_setting_font;
        Ui::PrintPreviewUI* ui;
        bool m_is_virtual_printer = false;
    };
 
    
}