after a seek, reset error if error==EOF

[wxWidgets.git] / samples / treectrl / treetest.cpp

diff --git a/samples/treectrl/treetest.cpp b/samples/treectrl/treetest.cpp
index 4c07872661ef57a60a629f3adadf85520a621867..6e8dc94fd08ac85b589d7adaddfc4b8e21699794 100644 (file)
--- a/samples/treectrl/treetest.cpp
+++ b/samples/treectrl/treetest.cpp
@@ -33,10 +33,13 @@
 
 #include "math.h"
 
-//#ifdef __WXMSW__
+#ifdef __WXMSW__
+    // comment out this line to test multiple selection even under MSW (where
+    // it looks ugly - but works)
     #define NO_MULTIPLE_SELECTION
-    #define NO_VARIABLE_HEIGHT
-//#endif
+#endif
+
+#define NO_VARIABLE_HEIGHT
 
 #include "treetest.h"
 
@@ -44,6 +47,9 @@
 #ifndef __WXMSW__
   #include "icon1.xpm"
   #include "icon2.xpm"
+  #include "icon3.xpm"
+  #include "icon4.xpm"
+  #include "icon5.xpm"
   #include "mondrian.xpm"
 #endif
 
@@ -66,6 +72,8 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(TreeTest_Unselect, MyFrame::OnUnselect)
 #endif // NO_MULTIPLE_SELECTION
     EVT_MENU(TreeTest_Rename, MyFrame::OnRename)
+    EVT_MENU(TreeTest_Count, MyFrame::OnCount)
+    EVT_MENU(TreeTest_CountRec, MyFrame::OnCountRec)
     EVT_MENU(TreeTest_Sort, MyFrame::OnSort)
     EVT_MENU(TreeTest_SortRev, MyFrame::OnSortRev)
     EVT_MENU(TreeTest_Bold, MyFrame::OnSetBold)
@@ -90,7 +98,9 @@ BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
+#if 0       // there are so many of those that logging them causes flicker
     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
+#endif
     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
@@ -147,6 +157,9 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
     tree_menu->Append(TreeTest_DeleteChildren, "Delete &children");
     tree_menu->Append(TreeTest_DeleteAll, "Delete &all items");
     tree_menu->AppendSeparator();
+    tree_menu->Append(TreeTest_Count, "Count children of current item");
+    tree_menu->Append(TreeTest_CountRec, "Recursively count children of current item");
+    tree_menu->AppendSeparator();
     tree_menu->Append(TreeTest_Sort, "Sort children of current item");
     tree_menu->Append(TreeTest_SortRev, "Sort in reversed order");
     tree_menu->AppendSeparator();
@@ -185,12 +198,12 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
                                 wxTR_HAS_BUTTONS |
                                 wxTR_EDIT_LABELS |
 #ifndef NO_MULTIPLE_SELECTION
-                               wxTR_MULTIPLE |
+                                wxTR_MULTIPLE |
 #endif
 #ifndef NO_VARIABLE_HEIGHT
-                               wxTR_HAS_VARIABLE_ROW_HEIGHT |
+                                wxTR_HAS_VARIABLE_ROW_HEIGHT |
 #endif
-                               wxSUNKEN_BORDER);
+                                wxSUNKEN_BORDER);
     wxTextCtrl *textCtrl = new wxTextCtrl(this, -1, "",
                                 wxDefaultPosition, wxDefaultSize,
                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
@@ -264,6 +277,28 @@ void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
     (void)m_treeCtrl->EditLabel(item);
 }
 
+void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
+{
+    wxTreeItemId item = m_treeCtrl->GetSelection();
+
+    CHECK_ITEM( item );
+
+    int i = m_treeCtrl->GetChildrenCount( item, FALSE );
+    
+    wxLogMessage(_T("%d children"), i);
+}
+
+void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
+{
+    wxTreeItemId item = m_treeCtrl->GetSelection();
+
+    CHECK_ITEM( item );
+
+    int i = m_treeCtrl->GetChildrenCount( item );
+    
+    wxLogMessage(_T("%d children"), i);
+}
+
 void MyFrame::DoSort(bool reverse)
 {
     wxTreeItemId item = m_treeCtrl->GetSelection();
@@ -414,11 +449,13 @@ MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
                        long style)
           : wxTreeCtrl(parent, id, pos, size, style)
 {
-#if (USE_TR_HAS_VARIABLE_ROW_HIGHT && wxUSE_LIBJPEG)
+#ifndef NO_VARIABLE_HEIGHT
+#if wxUSE_LIBJPEG
     wxImage::AddHandler(new wxJPEGHandler);
     wxImage image;
 
     image.LoadFile(wxString("horse.jpg"), wxBITMAP_TYPE_JPEG );
+#endif
 #endif
 
     m_reverseSort = FALSE;
@@ -430,19 +467,25 @@ MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 #if defined(__WXMSW__) && defined(__WIN16__)
     // This is required in 16-bit Windows mode only because we can't load a specific (16x16)
     // icon image, so it comes out stretched
-#  if USE_TR_HAS_VARIABLE_ROW_HIGHT
+#  ifndef NO_VARIABLE_HEIGHT
     m_imageListNormal->Add(image.ConvertToBitmap());
 #  else
     m_imageListNormal->Add(wxBitmap("bitmap1", wxBITMAP_TYPE_BMP_RESOURCE));
 #  endif
     m_imageListNormal->Add(wxBitmap("bitmap2", wxBITMAP_TYPE_BMP_RESOURCE));
+    m_imageListNormal->Add(wxBitmap("bitmap3", wxBITMAP_TYPE_BMP_RESOURCE));
+    m_imageListNormal->Add(wxBitmap("bitmap4", wxBITMAP_TYPE_BMP_RESOURCE));
+    m_imageListNormal->Add(wxBitmap("bitmap5", wxBITMAP_TYPE_BMP_RESOURCE));
 #else
-#  if USE_TR_HAS_VARIABLE_ROW_HIGHT
+#  ifndef NO_VARIABLE_HEIGHT
     m_imageListNormal->Add(image.ConvertToBitmap());
 #  else
     m_imageListNormal->Add(wxICON(icon1));
 #  endif
     m_imageListNormal->Add(wxICON(icon2));
+    m_imageListNormal->Add(wxICON(icon3));
+    m_imageListNormal->Add(wxICON(icon4));
+    m_imageListNormal->Add(wxICON(icon5));
 #endif
 
     SetImageList(m_imageListNormal);
@@ -477,21 +520,32 @@ void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 {
     if ( depth > 0 )
     {
+        bool hasChildren = depth > 1;
+
         wxString str;
         for ( size_t n = 0; n < numChildren; n++ )
         {
             // at depth 1 elements won't have any more children
-            if (depth == 1)
-                str.Printf("%s child %d.%d", "File", folder, n + 1);
-            else
+            if ( hasChildren )
                 str.Printf("%s child %d", "Folder", n + 1);
+            else
+                str.Printf("%s child %d.%d", "File", folder, n + 1);
 
+            // here we pass to AppendItem() normal and selected item images (we
+            // suppose that selected image follows the normal one in the enum)
             int image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
-            wxTreeItemId id = AppendItem(idParent, str, image, image,
+            wxTreeItemId id = AppendItem(idParent, str, image, image + 1,
                                          new MyTreeItemData(str));
 
+            // and now we also set the expanded one (only for the folders)
+            if ( hasChildren )
+            {
+                SetItemImage(id, TreeCtrlIcon_FolderOpened,
+                             wxTreeItemIcon_Expanded);
+            }
+
             // remember the last child for OnEnsureVisible()
-            if ( depth == 1 && n == numChildren - 1 )
+            if ( !hasChildren && n == numChildren - 1 )
             {
                 m_lastItem = id;
             }
@@ -508,6 +562,7 @@ void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
     wxTreeItemId rootId = AddRoot("Root",
                                   TreeCtrlIcon_Folder, TreeCtrlIcon_Folder,
                                   new MyTreeItemData("Root item"));
+    SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 
     AddItemsRecursively(rootId, numChildren, depth, 0);
 }