qgssymbolv2selectordialog.h

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/***************************************************************************
    qgssymbolv2selectordialog.h
    ---------------------
    begin                : November 2009
    copyright            : (C) 2009 by Martin Dobias
    email                : wonder dot sk at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef QGSSYMBOLV2SELECTORDIALOG_H
#define QGSSYMBOLV2SELECTORDIALOG_H

#include <QDialog>

#include "ui_qgssymbolv2selectordialogbase.h"

#include "qgsdatadefined.h"
#include "qgspanelwidget.h"

#include <QStandardItemModel>
#include <QScopedPointer>
#include <QDialogButtonBox>

class QgsStyleV2;
class QgsSymbolV2;
class QgsSymbolLayerV2;
class QgsVectorLayer;

class QMenu;
class QWidget;

class SymbolLayerItem;
class QgsMarkerSymbolV2;
class QgsLineSymbolV2;
class QgsMarkerSymbolLayerV2;
class QgsLineSymbolLayerV2;

class QgsMapCanvas;


class DataDefinedRestorer: public QObject
{
    Q_OBJECT
  public:
    DataDefinedRestorer( QgsSymbolV2* symbol, const QgsSymbolLayerV2* symbolLayer );

  public slots:
    void restore();

  private:
    QgsMarkerSymbolV2* mMarker;
    const QgsMarkerSymbolLayerV2* mMarkerSymbolLayer;
    double mSize;
    double mAngle;
    QPointF mMarkerOffset;
    QgsDataDefined mDDSize;
    QgsDataDefined mDDAngle;

    QgsLineSymbolV2* mLine;
    const QgsLineSymbolLayerV2* mLineSymbolLayer;
    double mWidth;
    double mLineOffset;
    QgsDataDefined mDDWidth;

    void save();
};

class QgsSymbolV2SelectorDialog;

class GUI_EXPORT QgsSymbolV2SelectorWidget: public QgsPanelWidget, private Ui::QgsSymbolV2SelectorDialogBase
{
    Q_OBJECT
    friend class QgsSymbolV2SelectorDialog;

  public:
    QgsSymbolV2SelectorWidget( QgsSymbolV2* symbol, QgsStyleV2* style, const QgsVectorLayer* vl, QWidget* parent = nullptr );
    ~QgsSymbolV2SelectorWidget();

    QMenu* advancedMenu();

    void setExpressionContext( QgsExpressionContext* context );

    QgsExpressionContext* expressionContext() const { return mPresetExpressionContext.data(); }

    void setMapCanvas( QgsMapCanvas* canvas );

    QgsSymbolV2* symbol() { return mSymbol; }

    void releaseSymbol();

  protected:

    void loadSymbol();

    void loadSymbol( QgsSymbolV2* symbol, SymbolLayerItem* parent );

    void updateUi();

    void updateLockButton();

    SymbolLayerItem* currentLayerItem();

    QgsSymbolLayerV2* currentLayer();

    void moveLayerByOffset( int offset );

    void setWidget( QWidget* widget );

  signals:
    void symbolModified();

  public slots:
    void moveLayerDown();

    void moveLayerUp();

    void addLayer();

    void removeLayer();

    void lockLayer();

    Q_DECL_DEPRECATED void saveSymbol();

    void duplicateLayer();

    void layerChanged();

    void updateLayerPreview();

    void updatePreview();

    void symbolChanged();
    void changeLayer( QgsSymbolLayerV2* layer );


  protected: // data
    QgsStyleV2* mStyle;
    QgsSymbolV2* mSymbol;
    QMenu* mAdvancedMenu;
    const QgsVectorLayer* mVectorLayer;

    QStandardItemModel* model;
    QWidget *mPresentWidget;

  private:
    QScopedPointer<DataDefinedRestorer> mDataDefineRestorer;
    QScopedPointer< QgsExpressionContext > mPresetExpressionContext;

    QgsMapCanvas* mMapCanvas;
};

class GUI_EXPORT QgsSymbolV2SelectorDialog : public QDialog
{
    Q_OBJECT

  public:
    QgsSymbolV2SelectorDialog( QgsSymbolV2* symbol, QgsStyleV2* style, const QgsVectorLayer* vl, QWidget* parent = nullptr, bool embedded = false );
    ~QgsSymbolV2SelectorDialog();

    QMenu* advancedMenu();

    void setExpressionContext( QgsExpressionContext* context );

    QgsExpressionContext* expressionContext() const;

    void setMapCanvas( QgsMapCanvas* canvas );

    QgsSymbolV2* symbol();

  protected:
    void keyPressEvent( QKeyEvent * e ) override;

    void loadSymbol();
    void loadSymbol( QgsSymbolV2* symbol, SymbolLayerItem* parent );

    void updateUi();

    void updateLockButton();

    SymbolLayerItem* currentLayerItem();
    QgsSymbolLayerV2* currentLayer();

    void moveLayerByOffset( int offset );

    void setWidget( QWidget* widget );

  signals:
    void symbolModified();

  public slots:
    void moveLayerDown();
    void moveLayerUp();

    void addLayer();
    void removeLayer();

    void lockLayer();

    Q_DECL_DEPRECATED void saveSymbol();

    void duplicateLayer();

    void layerChanged();

    void updateLayerPreview();
    void updatePreview();

    void symbolChanged();
    void changeLayer( QgsSymbolLayerV2* layer );

  private:
    QgsSymbolV2SelectorWidget* mSelectorWidget;
    QDialogButtonBox* mButtonBox;
};

#endif