- Add QgisGui namespace for application-wide gui constants.

- Add QgisGui::ModalDialogFlags for creating modal dialogs. This allows occurrances of the deprecated Qt3-style QDialog constructor to be replaced with the Qt4-style constructor and create Mac modal dialogs which corectly interact with QMessageBox modal dialogs.
- Use new ModalDialogFlags in DBSourceSelect dialog to elminiate Mac dialog layering problems. (This update will soon be made to all modal dialogs.)


git-svn-id: http://svn.osgeo.org/qgis/trunk@4681 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/gui/qgisgui.h

@@ -0,0 +1,50 @@
+/***************************************************************************
+    qgisgui.h - Constants used throughout the QGIS GUI.
+     --------------------------------------
+    Date                 : 11-Jan-2006
+    Copyright            : (C) 2006 by Tom Elwertowski
+    Email                : telwertowski at users dot sourceforge dot net
+ ***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+/* $Id$ */
+#ifndef QGISGUI_H
+#define QGISGUI_H
+
+#include <Qt>
+
+/*!
+ * /namespace QgisGui
+ * /brief The QgisGui namespace contains constants used throughout the QGIS GUI.
+ */
+namespace QgisGui
+{
+
+/*!
+ * /var ModalDialogFlags
+ * /brief Flags used to create a modal dialog (adapted from QMessageBox).
+ *
+ * Using these flags for all modal dialogs throughout QGIS ensures that
+ * for platforms such as the Mac where modal and modeless dialogs have
+ * different looks, QGIS modal dialogs will look the same as Qt modal
+ * dialogs and all modal dialogs will look distinct from modeless dialogs.
+ * Althought not the standard Mac modal look, it does lack the minimize
+ * control which makes sense only for modeless dislogs.
+ *
+ * The Qt3 method of creating a true Mac modal dialog is deprecated in Qt4
+ * and should not be used due to conflicts with QMessageBox style dialogs.
+ *
+ * Qt::WindowMaximizeButtonHint is included but will be ignored if
+ * the dialog is a fixed size and does not have a size grip.
+ */
+Qt::WFlags ModalDialogFlags =
+    Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowMaximizeButtonHint;
+
+}
+
+#endif

src/gui/qgsdbsourceselect.cpp

@@ -16,27 +16,25 @@ email                : sherman at mrcc.com
  *                                                                         *
  ***************************************************************************/
 /* $Id$ */
-#include <iostream>
-#include <cassert>
-#include <qsettings.h>
-#include <qpixmap.h>
-#include <Q3ListBox>
-#include <Q3ListView>
-#include <qstringlist.h>
-#include <QComboBox>
-#include <qpushbutton.h>
-#include <qmessagebox.h>
-#include <qinputdialog.h>
-#include <q3groupbox.h>
-#include <QTextOStream>
-#include "qgsapplication.h"
+
 #include "qgsdbsourceselect.h"
+
+#include "qgisapp.h"
+#include "qgisgui.h"
+#include "qgsapplication.h"
+#include "qgscontexthelp.h"
 #include "qgsnewconnection.h"
 #include "qgspgquerybuilder.h"
-#include "qgisapp.h"
-#include "qgscontexthelp.h"
-QgsDbSourceSelect::QgsDbSourceSelect(QgisApp *app, QWidget *parent, const char *name, bool modal)
-: QDialog(parent, name, modal), qgisApp(app)
+
+#include <QInputDialog>
+#include <QMessageBox>
+#include <QSettings>
+#include <QTextOStream>
+#include <cassert>
+#include <iostream>
+
+QgsDbSourceSelect::QgsDbSourceSelect(QgisApp *app)
+: QDialog(app, QgisGui::ModalDialogFlags), qgisApp(app)
 {
   setupUi(this);
   btnAdd->setEnabled(false);

src/gui/qgsdbsourceselect.h

@@ -42,7 +42,7 @@ class QgsDbSourceSelect : public QDialog, private Ui::QgsDbSourceSelectBase
  public:
 
     //! Constructor
-    QgsDbSourceSelect(QgisApp *app = 0, QWidget *parent=0, const char *name = 0, bool modal = true);
+    QgsDbSourceSelect(QgisApp *app);
     //! Destructor
     ~QgsDbSourceSelect();
     //! Opens the create connection dialog to build a new connection