+2012-12-20 Keith Marshall <keithmarshall@users.sourceforge.net>
+
+ Create foundation for implementation of package category tree view.
+
+ * Makefile.in (GUIMAIN_OBJECTS): Add pkgtree.$OBJEXT reference to...
+ * src/pkgtree.cpp: ...incorporate this new file; it implements...
+ (AppWindowMaker::InitPackageTreeView): ...this new class method...
+ (pkgInitCategoryTreeGraft): ...and this new extern "C" function.
+
+ * src/guimain.h (pkgInitCategoryTreeGraft): Declare prototype.
+ (AppWindowMaker::InitPackageTreeView): New private method; declare it.
+ (AppWindowMaker::PackageTreeView): New member variable; declare it.
+
+ * src/guixmld.cpp (AppWindowMaker::LoadPackageData): Call
+ pkgInitCategoryTreeGraft(), after loading profile.xml
+ (AppWindowMaker::Invoked): Call InitPackageTreeView()
+
+ * src/pkgview.cpp (AppWindowMaker::LayoutEngine):
+ [ID_PACKAGE_TREEVIEW]: Handle it.
+
2012-12-19 Keith Marshall <keithmarshall@users.sourceforge.net>
Make the "Apply Changes" dialogue "failure-aware".
*/
free( (void *)(dfile) );
+ /* Create a graft point for attachment of the package
+ * group hierarchy tree to the loaded XML data image.
+ */
+ pkgInitCategoryTreeGraft( pkgData->GetRoot() );
+
/* Establish the repository URI references, for retrieval
* of the downloadable catalogue files, and load them...
*/
*/
InitCommonControls();
- /* Load the data from the XML catalogue files, and construct
- * the initial view of the available package list; this activity
+ /* Load the data from the XML catalogue files; this activity
* is invoked in a background thread, initiated from a progress
* dialogue derived from the "Update Catalogue" template.
*/
DispatchDialogueThread( IDD_REPO_UPDATE, pkgInvokeInitDataLoad );
+
+ /* Establish the initial views of the package category selection
+ * tree, and the list of available packages; (the initial package
+ * list includes everything in the "All Packages" category).
+ */
+ InitPackageTreeView();
InitPackageListView();
/* Initialise the data-sheet tab control, displaying the default
--- /dev/null
+/*
+ * pkgtree.cpp
+ *
+ * $Id$
+ *
+ * Written by Keith Marshall <keithmarshall@users.sourceforge.net>
+ * Copyright (C) 2012, MinGW.org Project
+ *
+ *
+ * Implementation of the methods for the pkgTreeViewMaker class, and
+ * its AppWindowMaker client API, to support the display of the package
+ * category tree in the mingw-get graphical user interface.
+ *
+ *
+ * This is free software. Permission is granted to copy, modify and
+ * redistribute this software, under the provisions of the GNU General
+ * Public License, Version 3, (or, at your option, any later version),
+ * as published by the Free Software Foundation; see the file COPYING
+ * for licensing details.
+ *
+ * Note, in particular, that this software is provided "as is", in the
+ * hope that it may prove useful, but WITHOUT WARRANTY OF ANY KIND; not
+ * even an implied WARRANTY OF MERCHANTABILITY, nor of FITNESS FOR ANY
+ * PARTICULAR PURPOSE. Under no circumstances will the author, or the
+ * MinGW Project, accept liability for any damages, however caused,
+ * arising from the use of this software.
+ *
+ */
+#include "guimain.h"
+#include "pkgbase.h"
+#include "pkgkeys.h"
+
+static const char *package_group_key = "package-group";
+static const char *package_group_all = "All Packages";
+
+/* The following are candidates for inclusion in "pkgkeys";
+ * for now, we may keep them as local defines.
+ */
+static const char *expand_key = "expand";
+static const char *value_true = "true";
+
+EXTERN_C void pkgInitCategoryTreeGraft( pkgXmlNode *root )
+{
+ /* Helper function to create the graft point, at which the
+ * category tree records, as defined by the XML package group
+ * hierarchy, will be attached to the internal representation
+ * of the XML database image.
+ */
+ pkgXmlNode *pkgtree = new pkgXmlNode( package_group_key );
+ pkgtree->SetAttribute( name_key, package_group_all );
+ pkgtree->SetAttribute( expand_key, value_true );
+ root->LinkEndChild( pkgtree );
+}
+
+void AppWindowMaker::InitPackageTreeView()
+{
+ /* Create and initialise a TreeView window, in which to present
+ * the package group hierarchy display...
+ */
+ PackageTreeView = CreateWindow( WC_TREEVIEW, NULL,
+ WS_VISIBLE | WS_BORDER | WS_CHILD, 0, 0, 0, 0,
+ AppWindow, (HMENU)(ID_PACKAGE_TREEVIEW),
+ AppInstance, NULL
+ );
+
+ /* Assign the application's chosen default font, for use when
+ * displaying the category headings within the tree view.
+ */
+ SendMessage( PackageTreeView, WM_SETFONT, (WPARAM)(DefaultFont), TRUE );
+
+ /* Initialise a tree view insertion structure, to the appropriate
+ * state for assignment of the root entry in the tree view.
+ */
+ TVINSERTSTRUCT cat;
+ cat.hParent = TVI_ROOT;
+ cat.item.mask = TVIF_TEXT;
+ cat.hInsertAfter = TVI_ROOT;
+
+ /* Retrieve the root category entry, if any, as recorded in
+ * the package XML database, for assignment as the root entry
+ * in the category tree view.
+ */
+ pkgXmlNode *tree = pkgData->GetRoot();
+ if( (tree = tree->FindFirstAssociate( package_group_key )) == NULL )
+ {
+ /* There was no category tree recorded in the XML database;
+ * create an artificial root entry, (which will then become
+ * the sole entry in our tree view).
+ */
+ cat.item.pszText = (char *)(package_group_all);
+ TreeView_InsertItem( PackageTreeView, &cat );
+ }
+ else while( tree != NULL )
+ {
+ /* The package group hierarchy has been incorporated into
+ * the in-core image of the XML database; create a windows
+ * "tree view" representation of its structure.
+ *
+ * FIXME: this currently creates only the root of the tree;
+ * we need to walk the XML hierarchy, and add an additional
+ * tree view node for each element found.
+ */
+ cat.item.pszText = (char *)(tree->GetPropVal( name_key, value_unknown ));
+ HTREEITEM top = TreeView_InsertItem( PackageTreeView, &cat );
+ tree = tree->FindNextAssociate( package_group_key );
+ }
+}
+
+/* $RCSfile$: end of file */
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