Made a step in removing knowledge of DatabaseWindow from QueryTab as an effort to move

in the direction of a plugin system.

DatabaseWindow now passes a Context to QueryTab and other pages that give those pages an
API for passing information up the system without knowing anything about the sytem.

pglab/CodeGenerator.cpp

@@ -5,8 +5,8 @@
 #include "UserConfiguration.h"
 #include <QTextStream>
 
-CodeGenerator::CodeGenerator(QWidget *parent) :
-	PlgPage(parent),
+CodeGenerator::CodeGenerator(IPluginContentWidgetContext *context, QWidget *parent) :
+	PluginContentWidget(context, parent),
 	ui(new Ui::CodeGenerator)
 {
 	ui->setupUi(this);