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git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@3691 c8812cc2-4d05-0410-92ff-de0c093fc19c
103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
/***************************************************************************
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plugin.h
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Functions:
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-------------------
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begin : Jan 21, 2004
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copyright : (C) 2004 by Tim Sutton
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email : tim@linfiniti.com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef QGSNORTHARROWPLUGIN
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#define QGSNORTHARROWPLUGIN
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#include "../qgisplugin.h"
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#include <qwidget.h>
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#include <qpainter.h>
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#include "../../src/qgisapp.h"
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/**
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* \class Plugin
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* \brief North Arrow plugin for QGIS
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*
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*/
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class QgsNorthArrowPlugin:public QObject, public QgisPlugin
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{
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Q_OBJECT public:
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/**
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* Constructor for a plugin. The QgisApp and QgisIface pointers are passed by
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* QGIS when it attempts to instantiate the plugin.
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* @param qgis Pointer to the QgisApp object
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* @param qI Pointer to the QgisIface object.
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*/
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QgsNorthArrowPlugin(QgisApp * , QgisIface * );
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//! Destructor
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virtual ~QgsNorthArrowPlugin();
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public slots:
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//! init the gui
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virtual void initGui();
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//!set values on the gui when a project is read or the gui first loaded
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void projectRead();
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//! Show the dialog box
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void run();
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// draw some arbitary text to the screen
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void renderNorthArrow(QPainter *);
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//! Run when the user has set a new rotation
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void rotationChanged(int);
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//! Refresh the map display using the mapcanvas exported via the plugin interface
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void refreshCanvas();
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//! unload the plugin
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void unload();
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//! show the help document
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void help();
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//! set north arrow placement
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void setPlacement(QString);
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//! enable or disable north arrow
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void setEnabled(bool);
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//! enable or disable the automatic setting of the arrow direction
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void setAutomatic(bool);
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//! try to calculate the direction for the north arrow. Sets the
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// private class rotation variable. If unable to calculate the
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// direction, the function returns false and leaves the rotation
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// variable as is.
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bool calculateNorthDirection();
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private:
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static const double PI;
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// static const double DEG2RAD;
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static const double TOL;
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// The amount of rotation for the north arrow
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int mRotationInt;
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int pluginType;
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// enable or disable north arrow
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bool mEnable;
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//! enable or disable the automatic setting of the arrow direction
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bool mAutomatic;
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// The placement string
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QString mPlacement;
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//! Id of the plugin's menu. Used for unloading
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int menuId;
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//! Pointer to our toolbar
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QToolBar *toolBarPointer;
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//! Pionter to QGIS main application object
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QgisApp *qgisMainWindowPointer;
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//! Pointer to the QGIS interface object
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QgisIface *qGisInterface;
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//! Pointer to the QAction object used in the menu and toolbar
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QAction *myQActionPointer;
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};
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#endif
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