treeview.c File Reference

#include "precomp.h"
#include "treeview.h"
#include <wingdi.h>

Include dependency graph for treeview.c:

Go to the source code of this file.

Macros
#define	_WIN32_IE   0x0600
#define	_WIN32_WINNT   0x0600
#define	OP(a, b)   ((a) == (b) ? (a) : 2)

Functions
void	TreeView_Set3StateCheck (HWND hTree)
void	TreeView_Cleanup (HWND hTree)
HTREEITEM	InsertItem (HWND hTree, LPCWSTR szName, HTREEITEM hParent, HTREEITEM hInsertAfter)
UINT	TreeView_GetRealSubtreeState (HWND hTree, HTREEITEM htiSubtreeItem)
void	TreeView_PropagateStateOfItemToParent (HWND hTree, HTREEITEM htiItem)
HTREEITEM	Tree_Item_Copy (HWND hTree, HTREEITEM hSourceItem, HTREEITEM hParent, HTREEITEM hInsertAfter)
void	TreeView_DownItem (HWND hTree, HTREEITEM htiItemToDown)
void	TreeView_UpItem (HWND hTree, HTREEITEM htiItemToUp)
HTREEITEM	TreeView_GetFirst (HWND hTree)
HTREEITEM	TreeView_GetLastFromItem (HWND hTree, HTREEITEM hItem)
HTREEITEM	TreeView_GetLast (HWND hTree)
HTREEITEM	TreeView_GetPrev (HWND hTree, HTREEITEM hItem)
HTREEITEM	TreeView_GetNext (HWND hTree, HTREEITEM hItem)

Macro Definition Documentation

_WIN32_IE

#define _WIN32_IE   0x0600

Definition at line 11 of file treeview.c.

_WIN32_WINNT

#define _WIN32_WINNT   0x0600

Definition at line 16 of file treeview.c.

OP

#define OP	(		a,
			b
	)		((a) == (b) ? (a) : 2)

Function Documentation

InsertItem()

HTREEITEM InsertItem	(	HWND	hTree,
		LPCWSTR	szName,
		HTREEITEM	hParent,
		HTREEITEM	hInsertAfter
	)

Definition at line 95 of file treeview.c.

{
    TVINSERTSTRUCTW tvis;
    SecureZeroMemory(&tvis, sizeof(tvis));
 
    tvis.hParent        = hParent;
    tvis.hInsertAfter   = hInsertAfter;
    tvis.itemex.mask    = TVIF_TEXT;
    tvis.itemex.pszText = (LPWSTR)szName;
 
    return (tvis.itemex.hItem = TreeView_InsertItem(hTree, &tvis));
}

Referenced by CAppsListView::AddItem(), and CommonWndProc().

Tree_Item_Copy()

HTREEITEM Tree_Item_Copy	(	HWND	hTree,
		HTREEITEM	hSourceItem,
		HTREEITEM	hParent,
		HTREEITEM	hInsertAfter
	)

Definition at line 154 of file treeview.c.

{
    HTREEITEM htiIterator;
    TVINSERTSTRUCTW tvis;
    WCHAR label[MAX_VALUE_NAME] = L"";
 
    if (!hTree || !hSourceItem || !hInsertAfter)
        return NULL;
 
    // 1- Retrieve properties.
    SecureZeroMemory(&tvis, sizeof(tvis));
 
    tvis.itemex.hItem = hSourceItem; // Handle of the item to be retrieved.
    tvis.itemex.mask  = TVIF_HANDLE | TVIF_TEXT | TVIF_STATE |
                        TVIF_CHILDREN | TVIF_DI_SETITEM | TVIF_EXPANDEDIMAGE |
                        TVIF_IMAGE | TVIF_INTEGRAL | TVIF_PARAM | TVIF_SELECTEDIMAGE | TVIF_STATEEX;
    tvis.itemex.pszText    = label;
    tvis.itemex.cchTextMax = MAX_VALUE_NAME;
    TreeView_GetItem(hTree, &tvis.itemex);
 
    // 2- Now, copy to destination.
    tvis.hParent          = hParent;
    tvis.hInsertAfter     = hInsertAfter;
    tvis.itemex.stateMask = tvis.itemex.state;
    tvis.itemex.hItem     = TreeView_InsertItem(hTree, &tvis);
 
    for (htiIterator = TreeView_GetChild(hTree, hSourceItem) ; htiIterator ; htiIterator = TreeView_GetNextSibling(hTree, htiIterator))
        Tree_Item_Copy(hTree, htiIterator, tvis.itemex.hItem, TVI_LAST);
 
    return tvis.itemex.hItem;
}

Referenced by Tree_Item_Copy(), TreeView_DownItem(), and TreeView_UpItem().

TreeView_Cleanup()

void TreeView_Cleanup

(

HWND

hTree

)

Definition at line 87 of file treeview.c.

{
    // FIXME: Should we do it always, or only when the custom image list was set?
    ImageList_Destroy(TreeView_GetImageList(hTree, TVSIL_STATE));
}

Referenced by CommonWndProc().

TreeView_DownItem()

void TreeView_DownItem	(	HWND	hTree,
		HTREEITEM	htiItemToDown
	)

Definition at line 186 of file treeview.c.

{
    HTREEITEM htiNextItem, htiNewItem;
 
    if (!hTree || !htiItemToDown)
        return;
 
    htiNextItem = TreeView_GetNextSibling(hTree, htiItemToDown);
    if (!htiNextItem)
        htiNextItem = TVI_LAST;
 
    htiNewItem = Tree_Item_Copy(hTree, htiItemToDown, TreeView_GetParent(hTree, htiItemToDown), htiNextItem);
    TreeView_DeleteItem(hTree, htiItemToDown); // Delete the item and ALL its children.
    TreeView_SelectItem(hTree, htiNewItem);
 
    return;
}

Referenced by CommonWndProc().

TreeView_GetFirst()

HTREEITEM TreeView_GetFirst

(

HWND

hTree

)

Definition at line 224 of file treeview.c.

{
    return TreeView_GetRoot(hTree);
}

Referenced by FindDialogWndProc(), and WriteIniFile().

TreeView_GetLast()

HTREEITEM TreeView_GetLast

(

HWND

hTree

)

Definition at line 240 of file treeview.c.

{
    return TreeView_GetLastFromItem(hTree, TreeView_GetRoot(hTree));
}

Referenced by FindDialogWndProc().

TreeView_GetLastFromItem()

HTREEITEM TreeView_GetLastFromItem	(	HWND	hTree,
		HTREEITEM	hItem
	)

Definition at line 229 of file treeview.c.

{
    HTREEITEM htiRet = NULL;
    HTREEITEM htiIterator;
 
    for (htiIterator = hItem ; htiIterator ; htiIterator = TreeView_GetNextSibling(hTree, htiIterator))
        htiRet = htiIterator;
 
    return htiRet;
}

Referenced by TreeView_GetLast(), and TreeView_GetPrev().

TreeView_GetNext()

HTREEITEM TreeView_GetNext	(	HWND	hTree,
		HTREEITEM	hItem
	)

Definition at line 263 of file treeview.c.

{
    HTREEITEM hNext;
 
    if (!hTree)
        return NULL;
 
    hNext = TreeView_GetChild(hTree, hItem);
    if (hNext)
        return hNext;
 
    hNext = TreeView_GetNextSibling(hTree, hItem);
    if (hNext)
        return hNext;
    else
        return TreeView_GetNextSibling(hTree, TreeView_GetParent(hTree, hItem));
}

Referenced by FindDialogWndProc(), and WriteIniFile().

TreeView_GetPrev()

HTREEITEM TreeView_GetPrev	(	HWND	hTree,
		HTREEITEM	hItem
	)

Definition at line 245 of file treeview.c.

{
    HTREEITEM hPrev, hTmp;
 
    if (!hTree)
        return NULL;
 
    hPrev = TreeView_GetPrevSibling(hTree, hItem);
    if (!hPrev)
        return TreeView_GetParent(hTree, hItem);
 
    hTmp = TreeView_GetChild(hTree, hPrev);
    if (hTmp)
        return TreeView_GetLastFromItem(hTree, hTmp);
    else
        return hPrev;
}

Referenced by FindDialogWndProc().

TreeView_GetRealSubtreeState()

UINT TreeView_GetRealSubtreeState	(	HWND	hTree,
		HTREEITEM	htiSubtreeItem
	)

Definition at line 111 of file treeview.c.

{
#define OP(a, b) ((a) == (b) ? (a) : 2)
 
    HTREEITEM htiIterator       = TreeView_GetChild(hTree, htiSubtreeItem);
    UINT      uRealSubtreeState = TreeView_GetCheckState(hTree, htiIterator);
    /*
    while (htiIterator)
    {
        UINT temp = TreeView_GetCheckState(hTree, htiIterator);
        uRealSubtreeState = OP(uRealSubtreeState, temp);
 
        htiIterator = TreeView_GetNextSibling(hTree, htiIterator);
    }
    */
    while ( htiIterator && ( (htiIterator = TreeView_GetNextSibling(hTree, htiIterator)) != NULL ) )
    {
        UINT temp = TreeView_GetCheckState(hTree, htiIterator);
        uRealSubtreeState = OP(uRealSubtreeState, temp);
    }
 
    return uRealSubtreeState;
}

Referenced by TreeView_PropagateStateOfItemToParent(), and Update_Btn_States().

TreeView_PropagateStateOfItemToParent()

void TreeView_PropagateStateOfItemToParent	(	HWND	hTree,
		HTREEITEM	htiItem
	)

Definition at line 135 of file treeview.c.

{
    HTREEITEM htiParent;
    UINT uGlobalSiblingsCheckState;
 
    if (!hTree || !htiItem /* || htiItem == TVI_ROOT */)
        return;
 
    htiParent = TreeView_GetParent(hTree, htiItem);
    if (!htiParent)
        return;
 
    uGlobalSiblingsCheckState = TreeView_GetRealSubtreeState(hTree, htiParent);
    TreeView_SetItemState(hTree, htiParent, INDEXTOSTATEIMAGEMASK(uGlobalSiblingsCheckState + 1), TVIS_STATEIMAGEMASK);
    TreeView_PropagateStateOfItemToParent(hTree, htiParent);
 
    return;
}

Referenced by TreeView_PropagateStateOfItemToParent(), and TreeView_SetBOOLCheck().

TreeView_Set3StateCheck()

void TreeView_Set3StateCheck

(

HWND

hTree

)

Definition at line 24 of file treeview.c.

{
    LONG_PTR lStyle;
    DWORD dwExStyle;
 
    DWORD Major, Minor, Build;
    GetComCtl32Version(&Major, &Minor, &Build);
 
    /*
     * Choose the best way to handle 3-state TreeView checkboxes
     * according to the version of comctl32.dll we are running against.
     *
     * Starting version comctl32 version 6.10 (Vista+, via SxS)
     * we have native 3-state checkboxes available.
     * Only when comctl32 version 5.82 (no SxS) is available,
     * use its build number to know whether we should use 2k3-style
     * or Vista+ style check-boxes.
     */
    if (Major > 6 || (Major == 6 && Minor >= 10))
    {
        /*
         * NOTE: As explained in the following link:
         * http://stackoverflow.com/questions/31488233/treeview-setextendedstyle-does-not-apply-certain-styles-what-am-i-doing-wrong
         * the TreeView control should have the extended check-box style set
         * *BEFORE* actually setting the check-box window style, because it is
         * only at that step that the TreeView control builds its image list
         * containing the three check-box states. Indeed, if the extended
         * check-box style was applied after setting the window style, then
         * the image list would be already built with the default two states
         * and would not be updated.
         *
         * The MSDN documentation is not very clear on that point.
         *
         * Let me also take this opportunity to document what those
         * extended check-box state styles look like on Windows Vista+ :
         *
         * - TVS_EX_DIMMEDCHECKBOXES creates a grey tone version of the normal checked box state.
         * - TVS_EX_EXCLUSIONCHECKBOXES creates a red 'X'-style cross check-box state.
         * - TVS_EX_PARTIALCHECKBOXES creates a filled box.
         */
        dwExStyle = TreeView_GetExtendedStyle(hTree);
        TreeView_SetExtendedStyle(hTree, dwExStyle | TVS_EX_PARTIALCHECKBOXES, 0);
 
        lStyle = GetWindowLongPtr(hTree, GWL_STYLE);
        SetWindowLongPtr(hTree, GWL_STYLE, lStyle | TVS_CHECKBOXES);
    }
    else
    {
        lStyle = GetWindowLongPtr(hTree, GWL_STYLE);
        SetWindowLongPtr(hTree, GWL_STYLE, lStyle | TVS_CHECKBOXES);
 
        // TODO: Implement this function which should build at runtime
        // the image list with either two or three check-box states
        // (as it is done by the real common control TreeView), instead
        // of storing resource bitmaps.
        //
        // hCheckImageList = CreateCheckBoxImagelist(NULL, TRUE, TRUE, FALSE);
        TreeView_SetImageList(hTree,
                              ImageList_LoadBitmap(hInst, (Build >= 6000 ? MAKEINTRESOURCEW(IDB_V7CHECK) : MAKEINTRESOURCEW(IDB_2K3CHECK)), 16, 4, RGB(255, 255, 255)),
                              TVSIL_STATE);
    }
}

Referenced by CommonWndProc().

TreeView_UpItem()

void TreeView_UpItem	(	HWND	hTree,
		HTREEITEM	htiItemToUp
	)

Definition at line 204 of file treeview.c.

{
    HTREEITEM htiPrevItem, htiPrevPrevItem, htiNewItem;
 
    if (!hTree || !htiItemToUp)
        return;
 
    htiPrevItem     = TreeView_GetPrevSibling(hTree, htiItemToUp);
    htiPrevPrevItem = TreeView_GetPrevSibling(hTree, htiPrevItem);
    if (!htiPrevPrevItem)
        htiPrevPrevItem = TVI_FIRST;
    // if htiPrevItem == NULL , htiPrevPrevItem == NULL.
 
    htiNewItem = Tree_Item_Copy(hTree, htiItemToUp, TreeView_GetParent(hTree, htiItemToUp), htiPrevPrevItem);
    TreeView_DeleteItem(hTree, htiItemToUp); // Delete the item and ALL its children.
    TreeView_SelectItem(hTree, htiNewItem);
 
    return;
}

Referenced by CommonWndProc().