#include "wx/treectrl.h"
#ifndef WX_PRECOMP
+ #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+ #include "wx/msw/missing.h"
#include "wx/dynarray.h"
#include "wx/log.h"
#include "wx/app.h"
+ #include "wx/settings.h"
#endif
#include "wx/msw/private.h"
-// include <commctrl.h> "properly"
-#include "wx/msw/wrapcctl.h"
-
-#include "wx/msw/missing.h"
-
// Set this to 1 to be _absolutely_ sure that repainting will work for all
// comctl32.dll versions
#define wxUSE_COMCTL32_SAFELY 0
#include "wx/imaglist.h"
-#include "wx/settings.h"
#include "wx/msw/dragimag.h"
// macros to hide the cast ugliness
// get HTREEITEM from wxTreeItemId
#define HITEM(item) ((HTREEITEM)(((item).m_pItem)))
-// the native control doesn't support multiple selections under MSW and we
-// have 2 ways to emulate them: either using TVS_CHECKBOXES style and let
-// checkboxes be the selection status (checked == selected) or by really
-// emulating everything, i.e. intercepting mouse and key events &c. The first
-// approach is much easier but doesn't work with comctl32.dll < 4.71 and also
-// looks quite ugly.
-#define wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE 0
-
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
return (HTREEITEM)TreeView_HitTest(hwndTV, &tvht);
}
-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-
// wrappers for TreeView_GetItem/TreeView_SetItem
static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
{
}
}
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
}
};
+// ----------------------------------------------------------------------------
+// This class is our userdata/lParam for the TV_ITEMs stored in the treeview.
+//
+// We need this for a couple of reasons:
+//
+// 1) This class is needed for support of different images: the Win32 common
+// control natively supports only 2 images (the normal one and another for the
+// selected state). We wish to provide support for 2 more of them for folder
+// items (i.e. those which have children): for expanded state and for expanded
+// selected state. For this we use this structure to store the additional items
+// images.
+//
+// 2) This class is also needed to hold the HITEM so that we can sort
+// it correctly in the MSW sort callback.
+//
+// In addition it makes other workarounds such as this easier and helps
+// simplify the code.
+// ----------------------------------------------------------------------------
+
+class wxTreeItemParam
+{
+public:
+ wxTreeItemParam()
+ {
+ m_data = NULL;
+
+ for ( size_t n = 0; n < WXSIZEOF(m_images); n++ )
+ {
+ m_images[n] = -1;
+ }
+ }
+
+ // dtor deletes the associated data as well
+ virtual ~wxTreeItemParam() { delete m_data; }
+
+ // accessors
+ // get the real data associated with the item
+ wxTreeItemData *GetData() const { return m_data; }
+ // change it
+ void SetData(wxTreeItemData *data) { m_data = data; }
+
+ // do we have such image?
+ bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; }
+ // get image, falling back to the other images if this one is not
+ // specified
+ int GetImage(wxTreeItemIcon which) const
+ {
+ int image = m_images[which];
+ if ( image == -1 )
+ {
+ switch ( which )
+ {
+ case wxTreeItemIcon_SelectedExpanded:
+ image = GetImage(wxTreeItemIcon_Expanded);
+ if ( image != -1 )
+ break;
+ //else: fall through
+
+ case wxTreeItemIcon_Selected:
+ case wxTreeItemIcon_Expanded:
+ image = GetImage(wxTreeItemIcon_Normal);
+ break;
+
+ case wxTreeItemIcon_Normal:
+ // no fallback
+ break;
+
+ default:
+ wxFAIL_MSG( _T("unsupported wxTreeItemIcon value") );
+ }
+ }
+
+ return image;
+ }
+ // change the given image
+ void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
+
+ // get item
+ const wxTreeItemId& GetItem() const { return m_item; }
+ // set item
+ void SetItem(const wxTreeItemId& item) { m_item = item; }
+
+protected:
+ // all the images associated with the item
+ int m_images[wxTreeItemIcon_Max];
+
+ // item for sort callbacks
+ wxTreeItemId m_item;
+
+ // the real client data
+ wxTreeItemData *m_data;
+
+ DECLARE_NO_COPY_CLASS(wxTreeItemParam)
+};
+
// wxVirutalNode is used in place of a single root when 'hidden' root is
// specified.
class wxVirtualNode : public wxTreeViewItem
{
public:
- wxVirtualNode(wxTreeItemData *data)
+ wxVirtualNode(wxTreeItemParam *param)
: wxTreeViewItem(TVI_ROOT, 0)
{
- m_data = data;
+ m_param = param;
}
~wxVirtualNode()
{
- delete m_data;
+ delete m_param;
}
- wxTreeItemData *GetData() const { return m_data; }
- void SetData(wxTreeItemData *data) { delete m_data; m_data = data; }
+ wxTreeItemParam *GetParam() const { return m_param; }
+ void SetParam(wxTreeItemParam *param) { delete m_param; m_param = param; }
private:
- wxTreeItemData *m_data;
+ wxTreeItemParam *m_param;
DECLARE_NO_COPY_CLASS(wxVirtualNode)
};
virtual bool OnVisit(const wxTreeItemId& item)
{
+ const wxTreeCtrl * const tree = GetTree();
+
// can't visit a virtual node.
- if ( (GetTree()->GetRootItem() == item) && (GetTree()->GetWindowStyle() & wxTR_HIDE_ROOT))
+ if ( (tree->GetRootItem() == item) && tree->HasFlag(wxTR_HIDE_ROOT) )
{
return true;
}
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
- if ( GetTree()->IsItemChecked(item) )
-#else
- if ( ::IsItemSelected(GetHwndOf(GetTree()), HITEM(item)) )
-#endif
+ if ( ::IsItemSelected(GetHwndOf(tree), HITEM(item)) )
{
m_selections.Add(item);
}
DECLARE_NO_COPY_CLASS(TraverseCounter)
};
-// ----------------------------------------------------------------------------
-// This class is needed for support of different images: the Win32 common
-// control natively supports only 2 images (the normal one and another for the
-// selected state). We wish to provide support for 2 more of them for folder
-// items (i.e. those which have children): for expanded state and for expanded
-// selected state. For this we use this structure to store the additional items
-// images.
-//
-// There is only one problem with this: when we retrieve the item's data, we
-// don't know whether we get a pointer to wxTreeItemData or
-// wxTreeItemIndirectData. So we always set the item id to an invalid value
-// in this class and the code using the client data checks for it and retrieves
-// the real client data in this case.
-// ----------------------------------------------------------------------------
-
-class wxTreeItemIndirectData : public wxTreeItemData
-{
-public:
- // ctor associates this data with the item and the real item data becomes
- // available through our GetData() method
- wxTreeItemIndirectData(wxTreeCtrl *tree, const wxTreeItemId& item)
- {
- for ( size_t n = 0; n < WXSIZEOF(m_images); n++ )
- {
- m_images[n] = -1;
- }
-
- // save the old data
- m_data = tree->GetItemData(item);
-
- // and set ourselves as the new one
- tree->SetIndirectItemData(item, this);
-
- // we must have the invalid value for the item
- m_pItem = 0l;
- }
-
- // dtor deletes the associated data as well
- virtual ~wxTreeItemIndirectData() { delete m_data; }
-
- // accessors
- // get the real data associated with the item
- wxTreeItemData *GetData() const { return m_data; }
- // change it
- void SetData(wxTreeItemData *data) { m_data = data; }
-
- // do we have such image?
- bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; }
- // get image
- int GetImage(wxTreeItemIcon which) const { return m_images[which]; }
- // change it
- void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
-
-private:
- // all the images associated with the item
- int m_images[wxTreeItemIcon_Max];
-
- // the real client data
- wxTreeItemData *m_data;
-
- DECLARE_NO_COPY_CLASS(wxTreeItemIndirectData)
-};
-
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
wstyle |= TVS_FULLROWSELECT;
}
- // using TVS_CHECKBOXES for emulation of a multiselection tree control
- // doesn't work without the new enough headers
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE && \
- !defined( __GNUWIN32_OLD__ ) && \
- !defined( __BORLANDC__ ) && \
- !defined( __WATCOMC__ ) && \
- (!defined(__VISUALC__) || (__VISUALC__ > 1010))
-
- // we emulate the multiple selection tree controls by using checkboxes: set
- // up the image list we need for this if we do have multiple selections
- if ( m_windowStyle & wxTR_MULTIPLE )
- wstyle |= TVS_CHECKBOXES;
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-
#if !defined(__WXWINCE__) && defined(TVS_INFOTIP)
// Need so that TVN_GETINFOTIP messages will be sent
wstyle |= TVS_INFOTIP;
// simple wrappers which add error checking in debug mode
-bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
+bool wxTreeCtrl::DoGetItem(wxTreeViewItem *tvItem) const
{
wxCHECK_MSG( tvItem->hItem != TVI_ROOT, false,
_T("can't retrieve virtual root item") );
return true;
}
-void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem)
+void wxTreeCtrl::DoSetItem(wxTreeViewItem *tvItem)
{
if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 )
{
// Item access
// ----------------------------------------------------------------------------
+bool wxTreeCtrl::IsHiddenRoot(const wxTreeItemId& item) const
+{
+ return HITEM(item) == TVI_ROOT && HasFlag(wxTR_HIDE_ROOT);
+}
+
wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), wxEmptyString, wxT("invalid tree item") );
}
}
-int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item,
- wxTreeItemIcon which) const
-{
- wxTreeViewItem tvItem(item, TVIF_PARAM);
- if ( !DoGetItem(&tvItem) )
- {
- return -1;
- }
-
- return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which);
-}
-
-void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item,
- int image,
- wxTreeItemIcon which) const
-{
- wxTreeViewItem tvItem(item, TVIF_PARAM);
- if ( !DoGetItem(&tvItem) )
- {
- return;
- }
-
- wxTreeItemIndirectData *data = ((wxTreeItemIndirectData *)tvItem.lParam);
-
- data->SetImage(image, which);
-
- // make sure that we have selected images as well
- if ( which == wxTreeItemIcon_Normal &&
- !data->HasImage(wxTreeItemIcon_Selected) )
- {
- data->SetImage(image, wxTreeItemIcon_Selected);
- }
-
- if ( which == wxTreeItemIcon_Expanded &&
- !data->HasImage(wxTreeItemIcon_SelectedExpanded) )
- {
- data->SetImage(image, wxTreeItemIcon_SelectedExpanded);
- }
-}
-
-void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item,
- int image,
- int imageSel)
-{
- wxTreeViewItem tvItem(item, TVIF_IMAGE | TVIF_SELECTEDIMAGE);
- tvItem.iSelectedImage = imageSel;
- tvItem.iImage = image;
- DoSetItem(&tvItem);
-}
-
int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
wxTreeItemIcon which) const
{
wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") );
- if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) )
+ if ( IsHiddenRoot(item) )
{
- // TODO: Maybe a hidden root can still provide images?
+ // no images for hidden root item
return -1;
}
- if ( HasIndirectData(item) )
- {
- return DoGetItemImageFromData(item, which);
- }
-
- UINT mask;
- switch ( which )
- {
- default:
- wxFAIL_MSG( wxT("unknown tree item image type") );
-
- case wxTreeItemIcon_Normal:
- mask = TVIF_IMAGE;
- break;
-
- case wxTreeItemIcon_Selected:
- mask = TVIF_SELECTEDIMAGE;
- break;
-
- case wxTreeItemIcon_Expanded:
- case wxTreeItemIcon_SelectedExpanded:
- return -1;
- }
-
- wxTreeViewItem tvItem(item, mask);
- DoGetItem(&tvItem);
+ wxTreeItemParam *param = GetItemParam(item);
- return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage;
+ return param && param->HasImage(which) ? param->GetImage(which) : -1;
}
void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
wxTreeItemIcon which)
{
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+ wxCHECK_RET( which >= 0 &&
+ which < wxTreeItemIcon_Max,
+ wxT("invalid image index"));
- if ( IS_VIRTUAL_ROOT(item) )
+
+ if ( IsHiddenRoot(item) )
{
- // TODO: Maybe a hidden root can still store images?
+ // no images for hidden root item
return;
}
- int imageNormal,
- imageSel;
-
- switch ( which )
- {
- default:
- wxFAIL_MSG( wxT("unknown tree item image type") );
- // fall through
-
- case wxTreeItemIcon_Normal:
- {
- const int imageNormalOld = GetItemImage(item);
- const int imageSelOld =
- GetItemImage(item, wxTreeItemIcon_Selected);
-
- // always set the normal image
- imageNormal = image;
-
- // if the selected and normal images were the same, they should
- // be the same after the update, otherwise leave the selected
- // image as it was
- imageSel = imageNormalOld == imageSelOld ? image : imageSelOld;
- }
- break;
-
- case wxTreeItemIcon_Selected:
- imageNormal = GetItemImage(item);
- imageSel = image;
- break;
-
- case wxTreeItemIcon_Expanded:
- case wxTreeItemIcon_SelectedExpanded:
- if ( !HasIndirectData(item) )
- {
- // we need to get the old images first, because after we create
- // the wxTreeItemIndirectData GetItemXXXImage() will use it to
- // get the images
- imageNormal = GetItemImage(item);
- imageSel = GetItemImage(item, wxTreeItemIcon_Selected);
-
- // if it doesn't have it yet, add it
- wxTreeItemIndirectData *data = new
- wxTreeItemIndirectData(this, item);
-
- // copy the data to the new location
- data->SetImage(imageNormal, wxTreeItemIcon_Normal);
- data->SetImage(imageSel, wxTreeItemIcon_Selected);
- }
-
- DoSetItemImageFromData(item, image, which);
+ wxTreeItemParam *data = GetItemParam(item);
+ if ( !data )
+ return;
- // reset the normal/selected images because we won't use them any
- // more - now they're stored inside the indirect data
- imageNormal =
- imageSel = I_IMAGECALLBACK;
- break;
- }
+ data->SetImage(image, which);
- // NB: at least in version 5.00.0518.9 of comctl32.dll we need to always
- // change both normal and selected image - otherwise the change simply
- // doesn't take place!
- DoSetItemImages(item, imageNormal, imageSel);
+ RefreshItem(item);
}
-wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
+wxTreeItemParam *wxTreeCtrl::GetItemParam(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
wxTreeViewItem tvItem(item, TVIF_PARAM);
- // Hidden root may have data.
+ // hidden root may still have data.
if ( IS_VIRTUAL_ROOT(item) )
{
- return GET_VIRTUAL_ROOT()->GetData();
+ return GET_VIRTUAL_ROOT()->GetParam();
}
- // Visible node.
+ // visible node.
if ( !DoGetItem(&tvItem) )
{
return NULL;
}
- wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
- if ( IsDataIndirect(data) )
- {
- data = ((wxTreeItemIndirectData *)data)->GetData();
- }
-
- return data;
+ return (wxTreeItemParam *)tvItem.lParam;
}
-void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
+wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
{
- wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+ wxTreeItemParam *data = GetItemParam(item);
- if ( IS_VIRTUAL_ROOT(item) )
- {
- GET_VIRTUAL_ROOT()->SetData(data);
- }
+ return data ? data->GetData() : NULL;
+}
+void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
+{
// first, associate this piece of data with this item
if ( data )
{
data->SetId(item);
}
- wxTreeViewItem tvItem(item, TVIF_PARAM);
-
- if ( HasIndirectData(item) )
- {
- if ( DoGetItem(&tvItem) )
- {
- ((wxTreeItemIndirectData *)tvItem.lParam)->SetData(data);
- }
- else
- {
- wxFAIL_MSG( wxT("failed to change tree items data") );
- }
- }
- else
- {
- tvItem.lParam = (LPARAM)data;
- DoSetItem(&tvItem);
- }
-}
+ wxTreeItemParam *param = GetItemParam(item);
-void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item,
- wxTreeItemIndirectData *data)
-{
- // this should never happen because it's unnecessary and will probably lead
- // to crash too because the code elsewhere supposes that the pointer the
- // wxTreeItemIndirectData has is a real wxItemData and not
- // wxTreeItemIndirectData as well
- wxASSERT_MSG( !HasIndirectData(item), wxT("setting indirect data twice?") );
+ wxCHECK_RET( param, wxT("failed to change tree items data") );
- SetItemData(item, data);
-}
-
-bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const
-{
- // query the item itself
- wxTreeViewItem tvItem(item, TVIF_PARAM);
- if ( !DoGetItem(&tvItem) )
- {
- return false;
- }
-
- wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
-
- return data && IsDataIndirect(data);
+ param->SetData(data);
}
void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
tvIns.item.cchTextMax = 0;
}
- if ( image != -1 )
- {
- mask |= TVIF_IMAGE;
- tvIns.item.iImage = image;
-
- if ( selectedImage == -1 )
- {
- // take the same image for selected icon if not specified
- selectedImage = image;
- }
- }
+ // create the param which will store the other item parameters
+ wxTreeItemParam *param = new wxTreeItemParam;
- if ( selectedImage != -1 )
- {
- mask |= TVIF_SELECTEDIMAGE;
- tvIns.item.iSelectedImage = selectedImage;
- }
+ // we return the images on demand as they depend on whether the item is
+ // expanded or collapsed too in our case
+ mask |= TVIF_IMAGE | TVIF_SELECTEDIMAGE;
+ tvIns.item.iImage = I_IMAGECALLBACK;
+ tvIns.item.iSelectedImage = I_IMAGECALLBACK;
- if ( data != NULL )
- {
- mask |= TVIF_PARAM;
- tvIns.item.lParam = (LPARAM)data;
- }
+ param->SetImage(image, wxTreeItemIcon_Normal);
+ param->SetImage(selectedImage, wxTreeItemIcon_Selected);
+ mask |= TVIF_PARAM;
+ tvIns.item.lParam = (LPARAM)param;
tvIns.item.mask = mask;
- HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns);
+ HTREEITEM id = TreeView_InsertItem(GetHwnd(), &tvIns);
if ( id == 0 )
{
wxLogLastError(wxT("TreeView_InsertItem"));
}
+ // associate the application tree item with Win32 tree item handle
+ param->SetItem(id);
+
+ // setup wxTreeItemData
if ( data != NULL )
{
- // associate the application tree item with Win32 tree item handle
+ param->SetData(data);
data->SetId(id);
}
wxTreeItemData *data)
{
- if ( m_windowStyle & wxTR_HIDE_ROOT )
+ if ( HasFlag(wxTR_HIDE_ROOT) )
{
// create a virtual root item, the parent for all the others
- m_pVirtualRoot = new wxVirtualNode(data);
+ wxTreeItemParam *param = new wxTreeItemParam;
+ param->SetData(data);
+
+ m_pVirtualRoot = new wxVirtualNode(param);
return TVI_ROOT;
}
wxT("Unknown flag in wxTreeCtrl::DoExpand") );
// A hidden root can be neither expanded nor collapsed.
- wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT),
+ wxCHECK_RET( !IsHiddenRoot(item),
wxT("Can't expand/collapse hidden root node!") );
// TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must
if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 )
{
- wxTreeEvent event(wxEVT_NULL, m_windowId);
- event.m_item = item;
- event.SetEventObject(this);
-
// note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand()
// itself
- event.SetEventType(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
- : IDX_COLLAPSE]
- [IDX_DONE]);
-
+ wxTreeEvent event(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
+ : IDX_COLLAPSE]
+ [IDX_DONE],
+ this, item);
(void)GetEventHandler()->ProcessEvent(event);
}
//else: change didn't took place, so do nothing at all
size_t count = GetSelections(selections);
for ( size_t n = 0; n < count; n++ )
{
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
- SetItemCheck(HITEM(selections[n]), false);
-#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
::UnselectItem(GetHwnd(), HITEM(selections[n]));
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
}
m_htSelStart.Unset();
{
if ( m_windowStyle & wxTR_MULTIPLE )
{
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
- // selecting the item means checking it
- SetItemCheck(item, select);
-#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
::SelectItem(GetHwnd(), HITEM(item), select);
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
}
else
{
// the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
// send them ourselves
- wxTreeEvent event(wxEVT_NULL, m_windowId);
- event.m_item = item;
- event.SetEventObject(this);
-
- event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING);
+ wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
{
if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) )
void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
{
+ wxCHECK_RET( !IsHiddenRoot(item), _T("can't show hidden root item") );
+
// no error return
TreeView_EnsureVisible(GetHwnd(), HITEM(item));
}
}
}
-wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item,
- wxClassInfo* textControlClass)
+wxTextCtrl *wxTreeCtrl::EditLabel(const wxTreeItemId& item,
+ wxClassInfo *textControlClass)
{
wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) );
DeleteTextCtrl();
}
-wxTreeItemId wxTreeCtrl::DoTreeHitTest(const wxPoint& point, int& flags)
+wxTreeItemId wxTreeCtrl::DoTreeHitTest(const wxPoint& point, int& flags) const
{
TV_HITTESTINFO hitTestInfo;
hitTestInfo.pt.x = (int)point.x;
static int CALLBACK Compare(LPARAM data1, LPARAM data2, LPARAM tree);
private:
- static wxTreeItemId GetIdFromData(wxTreeCtrl *tree, LPARAM item)
+ static wxTreeItemId GetIdFromData(LPARAM lParam)
{
- wxTreeItemData *data = (wxTreeItemData *)item;
- if ( tree->IsDataIndirect(data) )
- {
- data = ((wxTreeItemIndirectData *)data)->GetData();
+ return ((wxTreeItemParam*)lParam)->GetItem();
}
-
- return data->GetId();
- }
};
int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1,
wxTreeCtrl *tree = (wxTreeCtrl *)htree;
- return tree->OnCompareItems(GetIdFromData(tree, pItem1),
- GetIdFromData(tree, pItem2));
+ return tree->OnCompareItems(GetIdFromData(pItem1),
+ GetIdFromData(pItem2));
}
void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
// rely on the fact that TreeView_SortChildren does the same thing as our
// default behaviour, i.e. sorts items alphabetically and so call it
// directly if we're not in derived class (much more efficient!)
+ // RN: Note that if you find you're code doesn't sort as expected this
+ // may be why as if you don't use the DECLARE_CLASS/IMPLEMENT_CLASS
+ // combo for your derived wxTreeCtrl if will sort without
+ // OnCompareItems
if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) )
{
TreeView_SortChildren(GetHwnd(), HITEM(item), 0);
// implementation
// ----------------------------------------------------------------------------
+bool wxTreeCtrl::MSWShouldPreProcessMessage(WXMSG* msg)
+{
+ if ( msg->message == WM_KEYDOWN )
+ {
+ if ( msg->wParam == VK_RETURN )
+ {
+ // we need VK_RETURN to generate wxEVT_COMMAND_TREE_ITEM_ACTIVATED
+ return false;
+ }
+ }
+
+ return wxTreeCtrlBase::MSWShouldPreProcessMessage(msg);
+}
+
bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
{
if ( cmd == EN_UPDATE )
// Convert the screen point to a client point
wxPoint MenuPoint = ScreenToClient(wxPoint(x, y));
- wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_MENU, GetId() );
-
// can't use GetSelection() here as it would assert in multiselect mode
- event.m_item = wxTreeItemId(TreeView_GetSelection(GetHwnd()));
- event.SetEventObject( this );
+ wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_MENU, this,
+ wxTreeItemId(TreeView_GetSelection(GetHwnd())));
// Get the bounding rectangle for the item, including the non-text areas
wxRect ItemRect;
GetBoundingRect(event.m_item, ItemRect, false);
// If the point is inside the bounding rectangle, use it as the click position.
// This should be the case for WM_CONTEXTMENU as the result of a right-click
- if (ItemRect.Inside(MenuPoint))
+ if (ItemRect.Contains(MenuPoint))
{
event.m_pointDrag = MenuPoint;
}
switch ( nMsg )
{
- case WM_RBUTTONDOWN:
- // if the item we are about to right click on is not already
- // selected or if we click outside of any item, remove the
- // entire previous selection
- if ( !htItem || !::IsItemSelected(GetHwnd(), htItem) )
- {
- UnselectAll();
- }
-
- // select item and set the focus to the
- // newly selected item
- ::SelectItem(GetHwnd(), htItem);
- ::SetFocus(GetHwnd(), htItem);
- break;
-
-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
case WM_LBUTTONDOWN:
if ( htItem && isMultiple && (tvht.flags & TVHT_ONITEM) != 0 )
{
}
}
break;
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
case WM_MOUSEMOVE:
#ifndef __WXWINCE__
m_dragImage = NULL;
// generate the drag end event
- wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId);
-
- event.m_item = htItem;
- event.m_pointDrag = wxPoint(x, y);
- event.SetEventObject(this);
-
+ wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, this, htItem);
(void)GetEventHandler()->ProcessEvent(event);
// if we don't do it, the tree seems to think that 2 items
break;
}
}
-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
{
// the tree control greys out the selected item when it loses focus and
}
}
}
-#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
else if ( nMsg == WM_COMMAND )
{
// if we receive a EN_KILLFOCUS command from the in-place edit control
WXLRESULT
wxTreeCtrl::MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
- // default WM_RBUTTONDOWN handler enters modal loop inside DefWindowProc()
- // waiting for WM_RBUTTONUP and then sends the resulting WM_CONTEXTMENU to
- // the parent window, not us, which completely breaks everything so simply
- // don't let it see this message at all
- if ( nMsg == WM_RBUTTONDOWN )
- return 0;
-
- // but because of the above we don't get NM_RCLICK which is normally
- // generated by tree window proc when the modal loop mentioned above ends
- // because the mouse is released -- synthesize it ourselves instead
- if ( nMsg == WM_RBUTTONUP )
- {
- NMHDR hdr;
- hdr.hwndFrom = GetHwnd();
- hdr.idFrom = GetId();
- hdr.code = NM_RCLICK;
-
- WXLPARAM rc;
- MSWOnNotify(GetId(), (LPARAM)&hdr, &rc);
-
- // continue as usual
- }
-
if ( nMsg == WM_CHAR )
{
- // also don't let the control process Space and Return keys because it
+ // don't let the control process Space and Return keys because it
// doesn't do anything useful with them anyhow but always beeps
// annoyingly when it receives them and there is no way to turn it off
// simply if you just process TREEITEM_ACTIVATED event to which Space
// process WM_NOTIFY Windows message
bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
{
- wxTreeEvent event(wxEVT_NULL, m_windowId);
+ wxTreeEvent event(wxEVT_NULL, this);
wxEventType eventType = wxEVT_NULL;
NMHDR *hdr = (NMHDR *)lParam;
break;
}
-#endif
-#endif
+#endif // TVN_GETINFOTIP
+#endif // !__WXWINCE__
case TVN_GETDISPINFO:
eventType = wxEVT_COMMAND_TREE_GET_INFO;
case TVN_ITEMEXPANDING:
case TVN_ITEMEXPANDED:
{
- NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam;
+ NM_TREEVIEW *tv = (NM_TREEVIEW*)lParam;
int what;
switch ( tv->action )
if ( !wxIsCtrlDown() && !wxIsShiftDown() && !isAltDown &&
((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) )
{
- wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
- m_windowId);
- event2.SetEventObject(this);
- if ( !(GetWindowStyle() & wxTR_MULTIPLE) )
- {
- event2.m_item = GetSelection();
- }
- //else: don't know how to get it
+ wxTreeItemId item;
+ if ( !HasFlag(wxTR_MULTIPLE) )
+ item = GetSelection();
- (void)GetEventHandler()->ProcessEvent(event2);
+ wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
+ this, item);
+ (void)GetEventHandler()->ProcessEvent(event2);
}
}
break;
if (hdr->code == TVN_SELCHANGINGW ||
hdr->code == TVN_SELCHANGEDW)
{
- NM_TREEVIEWW* tv = (NM_TREEVIEWW *)lParam;
+ NM_TREEVIEWW *tv = (NM_TREEVIEWW *)lParam;
event.m_item = tv->itemNew.hItem;
event.m_itemOld = tv->itemOld.hItem;
}
else
{
- NM_TREEVIEWA* tv = (NM_TREEVIEWA *)lParam;
+ NM_TREEVIEWA *tv = (NM_TREEVIEWA *)lParam;
event.m_item = tv->itemNew.hItem;
event.m_itemOld = tv->itemOld.hItem;
}
wxTreeItemAttr * const attr = it->second;
+ wxTreeViewItem tvItem((void *)nmcd.dwItemSpec,
+ TVIF_STATE, TVIS_DROPHILITED);
+ DoGetItem(&tvItem);
+ const UINT tvItemState = tvItem.state;
+
// selection colours should override ours,
- // otherwise it is too confusing ot the user
- if ( !(nmcd.uItemState & CDIS_SELECTED) )
+ // otherwise it is too confusing to the user
+ if ( !(nmcd.uItemState & CDIS_SELECTED) &&
+ !(tvItemState & TVIS_DROPHILITED) )
{
wxColour colBack;
if ( attr->HasBackgroundColour() )
// colour when we don't have focus (we can't keep
// it when we do, it would usually be unreadable on
// the almost inverted bg colour...)
- if ( !(nmcd.uItemState & CDIS_SELECTED) ||
- FindFocus() != this )
+ if ( ( !(nmcd.uItemState & CDIS_SELECTED) ||
+ FindFocus() != this ) &&
+ !(tvItemState & TVIS_DROPHILITED) )
{
wxColour colText;
if ( attr->HasTextColour() )
return wxControl::MSWOnNotify(idCtrl, lParam, result);
}
- event.SetEventObject(this);
event.SetEventType(eventType);
+ if ( event.m_item.IsOk() )
+ event.SetClientObject(GetItemData(event.m_item));
+
bool processed = GetEventHandler()->ProcessEvent(event);
// post processing
*result = false;
break;
+ case NM_RCLICK:
+ // prevent tree control from sending WM_CONTEXTMENU to our parent
+ // (which it does if NM_RCLICK is not handled) because we want to
+ // send it to the control itself
+ *result =
+ processed = true;
+
+ ::SendMessage(GetHwnd(), WM_CONTEXTMENU,
+ (WPARAM)GetHwnd(), ::GetMessagePos());
+ break;
+
case TVN_BEGINDRAG:
case TVN_BEGINRDRAG:
if ( event.IsAllowed() )
// tables, but due to overhead of wxWin event system we
// prefer to do it here ourself (otherwise deleting a tree
// with many items is just too slow)
- NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
- wxTreeItemId item = event.m_item;
- if ( HasIndirectData(item) )
- {
- wxTreeItemIndirectData *data = (wxTreeItemIndirectData *)
- tv->itemOld.lParam;
- delete data; // can't be NULL here
- }
- else
- {
- wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam;
- delete data; // may be NULL, ok
- }
+ wxTreeItemParam *param =
+ (wxTreeItemParam *)tv->itemOld.lParam;
+ delete param;
processed = true; // Make sure we don't get called twice
}
if ( event.IsAllowed() )
{
HWND hText = TreeView_GetEditControl(GetHwnd());
- if(hText != NULL)
+ if ( hText )
{
// MBN: if m_textCtrl already has an HWND, it is a stale
// pointer from a previous edit (because the user
// didn't modify the label before dismissing the control,
// and TVN_ENDLABELEDIT was not sent), so delete it
- if(m_textCtrl && m_textCtrl->GetHWND() != 0)
+ if ( m_textCtrl && m_textCtrl->GetHWND() )
DeleteTextCtrl();
- if(!m_textCtrl)
+ if ( !m_textCtrl )
m_textCtrl = new wxTextCtrl();
m_textCtrl->SetParent(this);
m_textCtrl->SetHWND((WXHWND)hText);
// an image depending on the expanded/collapsed state - bug in
// comctl32.dll or our code?
{
- NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
wxTreeItemId id(tv->itemNew.hItem);
int image = GetItemImage(id, wxTreeItemIcon_Expanded);
case TVN_GETDISPINFO:
// NB: so far the user can't set the image himself anyhow, so do it
// anyway - but this may change later
- //if ( /* !processed && */ 1 )
+ //if ( /* !processed && */ )
{
wxTreeItemId item = event.m_item;
TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ const wxTreeItemParam * const param = GetItemParam(item);
+ if ( !param )
+ break;
+
if ( info->item.mask & TVIF_IMAGE )
{
info->item.iImage =
- DoGetItemImageFromData
+ param->GetImage
(
- item,
IsExpanded(item) ? wxTreeItemIcon_Expanded
: wxTreeItemIcon_Normal
);
if ( info->item.mask & TVIF_SELECTEDIMAGE )
{
info->item.iSelectedImage =
- DoGetItemImageFromData
+ param->GetImage
(
- item,
IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded
: wxTreeItemIcon_Selected
);
projects / wxWidgets.git / blobdiff