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utils/mxtk/mxtreeview.cpp

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+//
+//                 mxToolKit (c) 1999 by Mete Ciragan
+//
+// file:           mxTreeView.cpp
+// implementation: Win32 API
+// last modified:  May 03 1999, Mete Ciragan
+// copyright:      The programs and associated files contained in this
+//                 distribution were developed by Mete Ciragan. The programs
+//                 are not in the public domain, but they are freely
+//                 distributable without licensing fees. These programs are
+//                 provided without guarantee or warrantee expressed or
+//                 implied.
+//
+#include "mxtk/mxTreeView.h"
+#include <windows.h>
+#include <commctrl.h>
+
+
+
+class mxTreeView_i
+{
+public:
+	HWND d_hwnd;
+};
+
+
+
+mxTreeView::mxTreeView (mxWindow *parent, int x, int y, int w, int h, int id)
+: mxWidget (parent, x, y, w, h)
+{
+	if (!parent)
+		return;
+
+	d_this = new mxTreeView_i;
+
+	DWORD dwStyle = TVS_HASBUTTONS | TVS_HASLINES | TVS_LINESATROOT | TVS_SHOWSELALWAYS | WS_VISIBLE | WS_CHILD;
+	HWND hwndParent = (HWND) ((mxWidget *) parent)->getHandle ();
+
+	d_this->d_hwnd = CreateWindowEx (WS_EX_CLIENTEDGE, WC_TREEVIEW, "", dwStyle,
+				x, y, w, h, hwndParent,
+				(HMENU) id, (HINSTANCE) GetModuleHandle (NULL), NULL);
+	
+	SendMessage (d_this->d_hwnd, WM_SETFONT, (WPARAM) (HFONT) GetStockObject (ANSI_VAR_FONT), MAKELPARAM (TRUE, 0));
+	SetWindowLong (d_this->d_hwnd, GWL_USERDATA, (LONG) this);
+
+	setHandle ((void *) d_this->d_hwnd);
+	setType (MX_TREEVIEW);
+	setParent (parent);
+	setId (id);
+}
+
+
+
+mxTreeView::~mxTreeView ()
+{
+	remove (0);
+	delete d_this;
+}
+
+
+
+mxTreeViewItem*
+mxTreeView::add (mxTreeViewItem *parent, const char *item)
+{
+	if (!d_this)
+		return 0;
+
+	TV_ITEM tvItem;
+	tvItem.mask = TVIF_TEXT;
+	tvItem.pszText = (LPSTR) item;
+	tvItem.cchTextMax = 256;
+
+	HTREEITEM hParent;
+	if (!parent)
+		hParent = TVI_ROOT;
+	else
+		hParent = (HTREEITEM) parent;
+
+	TV_INSERTSTRUCT tvInsert;
+	tvInsert.hParent = hParent;
+	tvInsert.hInsertAfter = TVI_LAST;
+	tvInsert.item = tvItem;
+
+	return (mxTreeViewItem *) TreeView_InsertItem (d_this->d_hwnd, &tvInsert);
+}
+
+
+void
+mxTreeView::remove (mxTreeViewItem *item)
+{
+	if (!d_this)
+		return;
+
+	if (!item)
+		TreeView_DeleteAllItems (d_this->d_hwnd);
+	else
+		TreeView_DeleteItem (d_this->d_hwnd, (HTREEITEM) item);
+}
+
+void
+mxTreeView::removeAll ()
+{
+	remove( 0 );
+}
+
+void
+mxTreeView::setLabel (mxTreeViewItem *item, const char *label)
+{
+	if (!d_this)
+		return;
+
+	if (item)
+	{
+		TV_ITEM tvItem;
+		tvItem.mask = TVIF_HANDLE | TVIF_TEXT;
+		tvItem.hItem = (HTREEITEM) item;
+		tvItem.pszText = (LPSTR) label;
+		tvItem.cchTextMax = 256;
+
+		TreeView_SetItem (d_this->d_hwnd, &tvItem);
+	}
+}
+
+
+
+void
+mxTreeView::setUserData (mxTreeViewItem *item, void *userData)
+{
+	if (!d_this)
+		return;
+
+	if (item)
+	{
+		TV_ITEM tvItem;
+		tvItem.mask = TVIF_HANDLE | TVIF_PARAM;
+		tvItem.hItem = (HTREEITEM) item;
+		tvItem.lParam = (LPARAM) userData;
+
+		TreeView_SetItem (d_this->d_hwnd, &tvItem);
+	}
+}
+
+
+
+void
+mxTreeView::setOpen (mxTreeViewItem *item, bool b)
+{
+	if (!d_this)
+		return;
+
+	if (item)
+		TreeView_Expand (d_this->d_hwnd, (HTREEITEM) item, b ? TVE_EXPAND:TVE_COLLAPSE);
+}
+
+
+
+void
+mxTreeView::setSelected (mxTreeViewItem *item, bool b)
+{
+	if (!d_this)
+		return;
+
+	if (item)
+		TreeView_SelectItem (d_this->d_hwnd, (HTREEITEM) item);
+}
+
+
+
+mxTreeViewItem*
+mxTreeView::getFirstChild (mxTreeViewItem *item) const
+{
+	if (!d_this)
+		return 0;
+
+	return (mxTreeViewItem *) TreeView_GetChild (d_this->d_hwnd, item ? (HTREEITEM) item:TVI_ROOT);
+}
+
+
+
+mxTreeViewItem*
+mxTreeView::getNextChild (mxTreeViewItem *item) const
+{
+	if (!d_this)
+		return 0;
+
+	if (item)
+		return (mxTreeViewItem *) TreeView_GetNextSibling (d_this->d_hwnd, (HTREEITEM) item);
+	else
+		return 0;
+}
+
+
+
+mxTreeViewItem*
+mxTreeView::getSelectedItem () const
+{
+	if (!d_this)
+		return 0;
+
+	return (mxTreeViewItem *) TreeView_GetSelection (d_this->d_hwnd);
+}
+
+
+
+const char*
+mxTreeView::getLabel (mxTreeViewItem *item) const
+{
+	static char label[256];
+	strcpy (label, "");
+
+	if (!d_this)
+		return label;
+
+	if (item)
+	{
+		TV_ITEM tvItem;
+		tvItem.mask = TVIF_HANDLE | TVIF_TEXT;
+		tvItem.hItem = (HTREEITEM) item;
+		tvItem.pszText = (LPSTR) label;
+		tvItem.cchTextMax = 256;
+
+		TreeView_GetItem (d_this->d_hwnd, &tvItem);
+
+		return tvItem.pszText;
+	}
+
+	return label;
+}
+
+
+
+void*
+mxTreeView::getUserData (mxTreeViewItem *item) const
+{
+	if (!d_this)
+		return 0;
+
+	if (item)
+	{
+		TV_ITEM tvItem;
+		tvItem.mask = TVIF_HANDLE | TVIF_PARAM;
+		tvItem.hItem = (HTREEITEM) item;
+
+		TreeView_GetItem (d_this->d_hwnd, &tvItem);
+
+		return (void *) tvItem.lParam;
+	}
+
+	return 0;
+}
+
+
+
+bool
+mxTreeView::isOpen (mxTreeViewItem *item) const
+{
+	if (!d_this)
+		return false;
+
+	if (item)
+	{
+		TV_ITEM tvItem;
+		tvItem.mask = TVIF_HANDLE | TVIF_STATE;
+		tvItem.hItem = (HTREEITEM) item;
+		tvItem.stateMask = TVIS_STATEIMAGEMASK;
+
+		TreeView_GetItem (d_this->d_hwnd, &tvItem);
+
+		return ((tvItem.state & TVIS_EXPANDED) == TVIS_EXPANDED);
+	}
+
+	return false;
+}
+
+
+
+bool
+mxTreeView::isSelected (mxTreeViewItem *item) const
+{
+	if (!d_this)
+		return false;
+
+	if (item)
+	{
+		TV_ITEM tvItem;
+		tvItem.mask = TVIF_HANDLE | TVIF_STATE;
+		tvItem.hItem = (HTREEITEM) item;
+		tvItem.stateMask = TVIS_STATEIMAGEMASK;
+
+		TreeView_GetItem (d_this->d_hwnd, &tvItem);
+
+		return ((tvItem.state & TVIS_SELECTED) == TVIS_SELECTED);
+	}
+
+	return false;
+}
+
+
+
+mxTreeViewItem *
+mxTreeView::getParent (mxTreeViewItem *item) const
+{
+	if (!d_this)
+		return 0;
+
+	if (item)
+		return (mxTreeViewItem *) TreeView_GetParent (d_this->d_hwnd, (HTREEITEM) item);
+
+	return 0;
+}
+
+void mxTreeView::setImageList( void *himagelist )
+{
+	TreeView_SetImageList(d_this->d_hwnd, (HIMAGELIST)himagelist, TVSIL_NORMAL); 
+}
+
+void mxTreeView::setImages(mxTreeViewItem *item, int imagenormal, int imageselected )
+{
+	if (!d_this)
+		return;
+
+	if (item)
+	{
+		TV_ITEM tvItem;
+		tvItem.mask = TVIF_HANDLE | TVIF_SELECTEDIMAGE | TVIF_IMAGE ;
+		tvItem.hItem = (HTREEITEM) item;
+		tvItem.iImage = imagenormal;
+		tvItem.iSelectedImage = imageselected;
+		tvItem.stateMask = TVIS_STATEIMAGEMASK;
+
+		TreeView_SetItem (d_this->d_hwnd, &tvItem);
+	}
+}
+void mxTreeView::sortTree( mxTreeViewItem *parent, bool recurse, 
+	void *func, int parameter )
+{
+	if (!d_this)
+		return;
+
+	TVSORTCB cb;
+	memset( &cb, 0, sizeof( cb ) );
+
+	cb.hParent = (HTREEITEM)parent;
+	cb.lParam = parameter;
+	cb.lpfnCompare = (int (__stdcall *)(long,long,long)) func;
+
+	TreeView_SortChildrenCB( d_this->d_hwnd, &cb, recurse );
+}
+
+void mxTreeView::scrollTo( mxTreeViewItem *item )
+{
+	if (!d_this)
+		return;
+
+	TreeView_EnsureVisible( d_this->d_hwnd, item );
+}