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https://github.com/qgis/QGIS.git
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git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@4234 c8812cc2-4d05-0410-92ff-de0c093fc19c
320 lines
11 KiB
C++
320 lines
11 KiB
C++
/***************************************************************************
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plugin.cpp
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Import tool for various worldmap analysis output files
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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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// includes
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#include <qgisapp.h>
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#include <qgsmaplayer.h>
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#include "plugin.h"
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#include <qgsproject.h>
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#include <qgsmapcanvas.h>
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#include <q3toolbar.h>
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#include <qmenubar.h>
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#include <qmessagebox.h>
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#include <q3popupmenu.h>
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#include <qlineedit.h>
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#include <qaction.h>
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#include <qapplication.h>
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#include <qcursor.h>
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#include <qpixmap.h>
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#include <qpainter.h>
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#include <qfont.h>
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#include <qrect.h>
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#include <qbrush.h>
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#include <q3button.h>
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#include <qcheckbox.h>
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#include <q3paintdevicemetrics.h>
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#include <qglobal.h>
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//non qt includes
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#include <iostream>
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//the gui subclass
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#include "plugingui.h"
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// xpm for creating the toolbar icon
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#include "icon.xpm"
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#ifdef WIN32
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#define QGISEXTERN extern "C" __declspec( dllexport )
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#else
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#define QGISEXTERN extern "C"
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#endif
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static const char * const ident_ = "$Id$";
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static const char * const name_ = "CopyrightLabel";
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static const char * const description_ = "This plugin overlays copyright information on the rendered map.";
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static const char * const version_ = "Version 0.1";
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static const QgisPlugin::PLUGINTYPE type_ = QgisPlugin::UI;
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/**
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* Constructor for the plugin. The plugin is passed a pointer to the main app
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* and an interface object that provides access to exposed functions in QGIS.
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* @param qgis Pointer to the QGIS main window
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* @param _qI Pointer to the QGIS interface object
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*/
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QgsCopyrightLabelPlugin::QgsCopyrightLabelPlugin(QgisApp * theQGisApp,
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QgisIface * theQgisInterFace):
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QgisPlugin(name_,description_,version_,type_),
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qgisMainWindowPointer(theQGisApp),
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qGisInterface(theQgisInterFace)
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{}
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QgsCopyrightLabelPlugin::~QgsCopyrightLabelPlugin()
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{}
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/*
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* Initialize the GUI interface for the plugin
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*/
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void QgsCopyrightLabelPlugin::initGui()
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{
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Q3PopupMenu *pluginMenu = qGisInterface->getPluginMenu("&Decorations");
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menuId = pluginMenu->insertItem(QIcon(icon),"&CopyrightLabel", this, SLOT(run()));
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pluginMenu->setWhatsThis(menuId, "Creates a copyright label that is displayed on the map canvas.");
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// Create the action for tool
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#if QT_VERSION < 0x040000
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myQActionPointer = new QAction("Copyright Label", QIcon(icon), "&Wmi",0, this, "run");
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#else
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myQActionPointer = new QAction(QIcon(icon), "Copyright Label", this);
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#endif
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myQActionPointer->setWhatsThis("Creates a copyright label that is displayed on the map canvas.");
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// Connect the action to the run
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connect(myQActionPointer, SIGNAL(activated()), this, SLOT(run()));
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// This calls the renderer everytime the cnavas has drawn itself
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connect(qGisInterface->getMapCanvas(), SIGNAL(renderComplete(QPainter *)), this, SLOT(renderLabel(QPainter *)));
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//this resets this plugin up if a project is loaded
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connect(qgisMainWindowPointer, SIGNAL(projectRead()), this, SLOT(projectRead()));
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// Add the icon to the toolbar
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qGisInterface->addToolBarIcon(myQActionPointer);
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//initialise default values in the gui
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projectRead();
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}
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void QgsCopyrightLabelPlugin::projectRead()
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{
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#ifdef QGISDEBUG
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std::cout << "+++++++++ Copyright plugin - project read slot called...." << std::endl;
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#endif //default text to start with - try to fetch it from qgsproject
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mQFont.setFamily(QgsProject::instance()->readEntry("CopyrightLabel","/FontName","Arial"));
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mQFont.setPointSize(QgsProject::instance()->readNumEntry("CopyrightLabel","/FontSize",14));
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mLabelQString = QgsProject::instance()->readEntry("CopyrightLabel","/Label","(c) QGIS 2004");
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mPlacement = QgsProject::instance()->readEntry("CopyrightLabel","/Placement","Bottom Right");
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mEnable = QgsProject::instance()->readBoolEntry("CopyrightLabel","/Enabled",true);
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// todo - read & store state of font color
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mLabelQColor = QColor(Qt::black);
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}
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//method defined in interface
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void QgsCopyrightLabelPlugin::help()
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{
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//implement me!
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}
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// Slot called when the buffer menu item is activated
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void QgsCopyrightLabelPlugin::run()
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{
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QgsCopyrightLabelPluginGui *myPluginGui=new QgsCopyrightLabelPluginGui(qgisMainWindowPointer,"Copyright Label",true,0);
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//listen for when the layer has been made so we can draw it
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//connect(myPluginGui, SIGNAL(drawRasterLayer(QString)), this, SLOT(drawRasterLayer(QString)));
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//connect(myPluginGui, SIGNAL(drawVectorLayer(QString,QString,QString)), this, SLOT(drawVectorLayer(QString,QString,QString)));
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//refresh the canvas when the user presses ok
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connect(myPluginGui, SIGNAL(refreshCanvas()), this, SLOT(refreshCanvas()));
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connect(myPluginGui, SIGNAL(changeFont(QFont )), this, SLOT(setFont(QFont )));
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connect(myPluginGui, SIGNAL(changeLabel(QString )), this, SLOT(setLabel(QString )));
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connect(myPluginGui, SIGNAL(changeColor(QColor)), this, SLOT(setColor(QColor)));
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connect(myPluginGui, SIGNAL(changePlacement(QString)), this, SLOT(setPlacement(QString)));
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connect(myPluginGui, SIGNAL(enableCopyrightLabel(bool)), this, SLOT(setEnable(bool)));
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myPluginGui->setText(mLabelQString);
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myPluginGui->setPlacement(mPlacement);
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myPluginGui->show();
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}
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//! Refresh the map display using the mapcanvas exported via the plugin interface
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void QgsCopyrightLabelPlugin::refreshCanvas()
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{
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qGisInterface->getMapCanvas()->refresh();
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}
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void QgsCopyrightLabelPlugin::renderLabel(QPainter * theQPainter)
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{
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//Large IF statement to enable/disable copyright label
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if (mEnable)
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{
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//@todo softcode this!myQSimpleText.height()
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// need width/height of paint device
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Q3PaintDeviceMetrics myMetrics( theQPainter->device() );
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int myHeight = myMetrics.height();
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int myWidth = myMetrics.width();
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//hard coded cludge for getting a colorgroup. Needs to be replaced
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Q3Button * myQButton =new Q3Button();
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QColorGroup myQColorGroup = myQButton->colorGroup();
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Q3SimpleRichText myQSimpleText(mLabelQString, mQFont);
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myQSimpleText.setWidth( theQPainter, myWidth-10 );
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//Get canvas dimensions
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int myYOffset = myHeight;
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int myXOffset = myWidth;
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//Determine placement of label from form combo box
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if (mPlacement==tr("Bottom Left"))
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{
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//Define bottom left hand corner start point
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myYOffset = myYOffset - (myQSimpleText.height()+5);
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myXOffset = 5;
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}
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else if (mPlacement==tr("Top Left"))
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{
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//Define top left hand corner start point
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myYOffset = 5;
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myXOffset = 5;
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}
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else if (mPlacement==tr("Top Right"))
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{
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//Define top right hand corner start point
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myYOffset = 5;
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myXOffset = myXOffset - (myQSimpleText.widthUsed()+5);
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}
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else // defaulting to bottom right
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{
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//Define bottom right hand corner start point
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myYOffset = myYOffset - (myQSimpleText.height()+5);
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myXOffset = myXOffset - (myQSimpleText.widthUsed()+5);
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}
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//Paint label to canvas
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QRect myRect(myXOffset,myYOffset,myQSimpleText.widthUsed(),myQSimpleText.height());
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myQSimpleText.draw (theQPainter, myXOffset, myYOffset, myRect, myQColorGroup);
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}
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}
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// Unload the plugin by cleaning up the GUI
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void QgsCopyrightLabelPlugin::unload()
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{
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// remove the GUI
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qGisInterface->removePluginMenuItem("&Decorations",menuId);
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qGisInterface->removeToolBarIcon(myQActionPointer);
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// remove the copyright from the canvas
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disconnect(qGisInterface->getMapCanvas(), SIGNAL(renderComplete(QPainter *)),
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this, SLOT(renderLabel(QPainter *)));
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refreshCanvas();
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delete myQActionPointer;
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}
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//! change the copyright font
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void QgsCopyrightLabelPlugin::setFont(QFont theQFont)
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{
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mQFont = theQFont;
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//save state to the project file.....
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QgsProject::instance()->writeEntry("CopyrightLabel","/FontName",theQFont.family());
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//save state to the project file.....
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QgsProject::instance()->writeEntry("CopyrightLabel","/FontSize", theQFont.pointSize() );
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refreshCanvas();
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}
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//! change the copyright text
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void QgsCopyrightLabelPlugin::setLabel(QString theLabelQString)
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{
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mLabelQString = theLabelQString;
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QgsProject::instance()->writeEntry("CopyrightLabel","/Label", mLabelQString );
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refreshCanvas();
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}
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//! change the copyright text colour
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void QgsCopyrightLabelPlugin::setColor(QColor theQColor)
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{
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mLabelQColor = theQColor;
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QgsProject::instance()->writeEntry("CopyrightLabel","/ColorRedPart", mLabelQColor.red());
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QgsProject::instance()->writeEntry("CopyrightLabel","/ColorGreenPart", mLabelQColor.green());
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QgsProject::instance()->writeEntry("CopyrightLabel","/ColorBluePart", mLabelQColor.blue());
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refreshCanvas();
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}
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//! set placement of copyright label
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void QgsCopyrightLabelPlugin::setPlacement(QString theQString)
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{
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mPlacement = theQString;
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QgsProject::instance()->writeEntry("CopyrightLabel","/Placement", mPlacement);
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refreshCanvas();
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}
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//! set whether copyright label is enabled
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void QgsCopyrightLabelPlugin::setEnable(bool theBool)
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{
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mEnable = theBool;
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QgsProject::instance()->writeEntry("CopyrightLabel","/Enabled", mEnable );
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refreshCanvas();
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}
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/**
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* Required extern functions needed for every plugin
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* These functions can be called prior to creating an instance
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* of the plugin class
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*/
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// Class factory to return a new instance of the plugin class
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QGISEXTERN QgisPlugin * classFactory(QgisApp * theQGisAppPointer, QgisIface * theQgisInterfacePointer)
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{
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return new QgsCopyrightLabelPlugin(theQGisAppPointer, theQgisInterfacePointer);
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}
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// Return the name of the plugin - note that we do not user class members as
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// the class may not yet be insantiated when this method is called.
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QGISEXTERN QString name()
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{
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return name_;
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}
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// Return the description
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QGISEXTERN QString description()
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{
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return description_;
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}
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// Return the type (either UI or MapLayer plugin)
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QGISEXTERN int type()
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{
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return type_;
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}
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// Return the version number for the plugin
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QGISEXTERN QString version()
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{
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return version_;
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}
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// Delete ourself
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QGISEXTERN void unload(QgisPlugin * thePluginPointer)
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{
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delete thePluginPointer;
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}
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