blind fix for wxGIFDecoder::ReadGIF

[wxWidgets.git] / src / os2 / checklst.cpp

diff --git a/src/os2/checklst.cpp b/src/os2/checklst.cpp
index 079092b3277dd56610bf189f5c5cc4b51bbf9260..05f0b829f2c42b8725e93723407e5a3e70ad2f8b 100644 (file)
--- a/src/os2/checklst.cpp
+++ b/src/os2/checklst.cpp
@@ -1,11 +1,11 @@
 ///////////////////////////////////////////////////////////////////////////////
 // Name:        checklst.cpp
 // Purpose:     implementation of wxCheckListBox class
 ///////////////////////////////////////////////////////////////////////////////
 // Name:        checklst.cpp
 // Purpose:     implementation of wxCheckListBox class

-// Author:      AUTHOR
+// Author:      David Webster

 // Modified by:
 // Modified by:

-// Created:     ??/??/98
+// Created:     10/13/99

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
+// Copyright:   (c) David Webster

 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 


@@ -13,19 +13,226 @@
 // headers & declarations
 // ============================================================================
 
 // headers & declarations
 // ============================================================================
 

-#ifdef __GNUG__
-#pragma implementation "checklst.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_OWNER_DRAWN
+
+#include "wx/object.h"
+#include "wx/colour.h"
+#include "wx/font.h"
+#include "wx/bitmap.h"
+#include "wx/window.h"
+#include "wx/listbox.h"
+#include "wx/ownerdrw.h"
+#include "wx/settings.h"
+#include "wx/dcmemory.h"
+#include "wx/os2/checklst.h"
+#include "wx/log.h"

 
 

-#include "wx/checklst.h"
+#define INCL_PM
+#include <os2.h>
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+// get item (converted to right type)
+#define GetItem(n)    ((wxCheckListBoxItem *)(GetItem(n)))

 
 // ============================================================================
 // implementation
 // ============================================================================
 
 
 // ============================================================================
 // implementation
 // ============================================================================
 

-#if !USE_SHARED_LIBRARY

   IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
   IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)

+
+// ----------------------------------------------------------------------------
+// declaration and implementation of wxCheckListBoxItem class
+// ----------------------------------------------------------------------------
+
+class wxCheckListBoxItem : public wxOwnerDrawn
+{
+friend class wxCheckListBox;
+public:
+  // ctor
+  wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex);
+
+  // drawing functions
+  virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat);
+
+  // simple accessors
+  bool IsChecked() const  { return m_bChecked;        }
+  void Check(bool bCheck);
+  void Toggle() { Check(!IsChecked()); }
+
+private:
+  bool            m_bChecked;
+  wxCheckListBox *m_pParent;
+  size_t            m_nIndex;
+};
+
+wxCheckListBoxItem::wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex)
+                  : wxOwnerDrawn("", TRUE)   // checkable
+{
+  m_bChecked = FALSE;
+  m_pParent  = pParent;
+  m_nIndex   = nIndex;
+
+  // we don't initialize m_nCheckHeight/Width vars because it's
+  // done in OnMeasure while they are used only in OnDraw and we
+  // know that there will always be OnMeasure before OnDraw
+
+  // fix appearance
+  SetMarginWidth(GetDefaultMarginWidth());
+}
+
+/*
+ * JACS - I've got the owner-draw stuff partially working with WIN16,
+ * with a really horrible-looking cross for wxCheckListBox instead of a
+ * check - could use a bitmap check-mark instead, defined in wx.rc.
+ * Also there's a refresh problem whereby it doesn't always draw the
+ * check until you click to the right of it, which is OK for WIN32.
+ */
+
+bool wxCheckListBoxItem::OnDrawItem(wxDC& dc, const wxRect& rc,
+                                    wxODAction act, wxODStatus stat)
+{
+  if ( IsChecked() )
+    stat = (wxOwnerDrawn::wxODStatus)(stat | wxOwnerDrawn::wxODChecked);
+
+// TODO:
+/*
+
+  if ( wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) ) {
+    // ## using native API for performance and precision
+    size_t nCheckWidth  = GetDefaultMarginWidth(),
+         nCheckHeight = m_pParent->GetItemHeight();
+
+    int x = rc.GetX(),
+        y = rc.GetY();
+
+    HDC hdc = (HDC)dc.GetHDC();
+
+    // create pens
+    HPEN hpenBack = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOW)),
+         hpenGray = CreatePen(PS_SOLID, 0, RGB(128, 128, 128)),
+         hpenPrev = (HPEN)SelectObject(hdc, hpenBack);
+
+    // we erase the 1-pixel border
+    Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
+
+    // shift check mark 1 pixel to the right (it looks better like this)
+    x++;
+
+    if ( IsChecked() ) {
+      // first create a monochrome bitmap in a memory DC
+      HDC hdcMem = CreateCompatibleDC(hdc);
+      HBITMAP hbmpCheck = CreateBitmap(nCheckWidth, nCheckHeight, 1, 1, 0);
+      HBITMAP hbmpOld = (HBITMAP)SelectObject(hdcMem, hbmpCheck);
+
+      // then draw a check mark into it
+      RECT rect ;
+      rect.left   = 0 ;
+      rect.top    = 0 ;
+      rect.right  = nCheckWidth ;
+      rect.bottom = nCheckHeight ;
+
+#ifdef __WIN32__
+#ifndef __SC__
+      DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK);

 #endif
 #endif

+#else
+      // In WIN16, draw a cross
+      HPEN blackPen = CreatePen(PS_SOLID, 1, RGB(0, 0, 0));
+      HPEN whiteBrush = (HPEN)GetStockObject(WHITE_BRUSH);
+      HPEN hPenOld = (HPEN)::SelectObject(hdcMem, blackPen);
+      HPEN hBrushOld = (HPEN)::SelectObject(hdcMem, whiteBrush);
+      ::SetROP2(hdcMem, R2_COPYPEN);
+      Rectangle(hdcMem, 0, 0, nCheckWidth, nCheckHeight);
+      MoveTo(hdcMem, 0, 0);
+      LineTo(hdcMem, nCheckWidth, nCheckHeight);
+      MoveTo(hdcMem, nCheckWidth, 0);
+      LineTo(hdcMem, 0, nCheckHeight);
+      ::SelectObject(hdcMem, hPenOld);
+      ::SelectObject(hdcMem, hBrushOld);
+      ::DeleteObject(blackPen);
+#endif
+
+      // finally copy it to screen DC and clean up
+      BitBlt(hdc, x, y, nCheckWidth - 1, nCheckHeight,
+             hdcMem, 0, 0, SRCCOPY);
+
+      SelectObject(hdcMem, hbmpOld);
+      DeleteObject(hbmpCheck);
+      DeleteDC(hdcMem);
+    }
+
+    // now we draw the smaller rectangle
+    y++;
+    nCheckWidth  -= 2;
+    nCheckHeight -= 2;
+
+    // draw hollow gray rectangle
+    (void)SelectObject(hdc, hpenGray);
+    HBRUSH hbrPrev  = (HBRUSH)SelectObject(hdc, GetStockObject(NULL_BRUSH));
+    Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
+
+    // clean up
+    (void)SelectObject(hdc, hpenPrev);
+    (void)SelectObject(hdc, hbrPrev);
+
+    DeleteObject(hpenBack);
+    DeleteObject(hpenGray);
+
+//
+//    dc.DrawRectangle(x, y, nCheckWidth, nCheckHeight);
+//
+//    if ( IsChecked() ) {
+//      dc.DrawLine(x, y, x + nCheckWidth, y + nCheckHeight);
+//      dc.DrawLine(x, y + nCheckHeight, x + nCheckWidth, y);
+//    }
+//
+
+    return TRUE;
+  }
+*/
+  return FALSE;
+}
+
+// change the state of the item and redraw it
+void wxCheckListBoxItem::Check(bool check)
+{
+    m_bChecked = check;
+
+    // index may be chanegd because new items were added/deleted
+    if ( m_pParent->GetItemIndex(this) != (int)m_nIndex )
+    {
+        // update it
+        int index = m_pParent->GetItemIndex(this);
+
+        wxASSERT_MSG( index != wxNOT_FOUND, wxT("what does this item do here?") );
+
+        m_nIndex = (size_t)index;
+    }
+
+    HWND hwndListbox = (HWND)m_pParent->GetHWND();
+
+// TODO:
+/*
+    RECT rcUpdate;
+    if ( ::SendMessage(hwndListbox, LB_GETITEMRECT,
+                       m_nIndex, (LPARAM)&rcUpdate) == LB_ERR )
+    {
+        wxLogDebug(wxT("LB_GETITEMRECT failed"));
+    }
+
+    InvalidateRect(hwndListbox, &rcUpdate, FALSE);
+*/
+    wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, m_pParent->GetId());
+    event.SetInt(m_nIndex);
+    event.SetEventObject(m_pParent);
+    m_pParent->ProcessCommand(event);
+}

 
 // ----------------------------------------------------------------------------
 // implementation of wxCheckListBox class
 
 // ----------------------------------------------------------------------------
 // implementation of wxCheckListBox class


@@ -34,6 +241,8 @@
 // define event table
 // ------------------
 BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
 // define event table
 // ------------------
 BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)

+  EVT_CHAR(wxCheckListBox::OnChar)
+  EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)

 END_EVENT_TABLE()
 
 // control creation
 END_EVENT_TABLE()
 
 // control creation


@@ -48,27 +257,135 @@ wxCheckListBox::wxCheckListBox() : wxListBox()
 wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
                                const wxPoint& pos, const wxSize& size,
                                int nStrings, const wxString choices[],
 wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
                                const wxPoint& pos, const wxSize& size,
                                int nStrings, const wxString choices[],

+#if wxUSE_VALIDATORS

                                long style, const wxValidator& val,
                                long style, const wxValidator& val,

+#endif

                                const wxString& name)
               : wxListBox()
 {
                                const wxString& name)
               : wxListBox()
 {

-    // TODO: you'll probably need a separate Create instead of using
-    // the wxListBox one as here.
-    Create(parent, id, pos, size, nStrings, choices, style|wxLB_OWNERDRAW, val, name);
+    Create(parent, id, pos, size, nStrings, choices,
+           style | wxLB_OWNERDRAW, val, name);
+}
+
+void wxCheckListBox::Delete(int N)
+{
+    wxCHECK_RET( N >= 0 && N < m_nNumItems,
+                 wxT("invalid index in wxListBox::Delete") );
+
+    wxListBox::Delete(N);
+
+    // free memory
+    delete m_aItems[N];
+
+    m_aItems.RemoveAt(N);
+}
+
+void wxCheckListBox::InsertItems(int nItems, const wxString items[], int pos)
+{
+    wxCHECK_RET( pos >= 0 && pos <= m_nNumItems,
+                 wxT("invalid index in wxCheckListBox::InsertItems") );
+
+    wxListBox::InsertItems(nItems, items, pos);
+
+    int i;
+    for ( i = 0; i < nItems; i++ ) {
+        wxOwnerDrawn *pNewItem = CreateItem((size_t)(pos + i));
+        pNewItem->SetName(items[i]);
+        m_aItems.Insert(pNewItem, (size_t)(pos + i));
+//        ListBox_SetItemData((HWND)GetHWND(), i + pos, pNewItem);
+    }
+}
+
+
+bool wxCheckListBox::SetFont( const wxFont &font )
+{
+    size_t i;
+    for (i=0; i < m_aItems.GetCount(); i++)
+        m_aItems[i]->SetFont(font);
+    wxListBox::SetFont(font);
+    return TRUE;
+}
+
+// create/retrieve item
+// --------------------
+
+// create a check list box item
+wxOwnerDrawn *wxCheckListBox::CreateItem(size_t nIndex)
+{
+  wxCheckListBoxItem *pItem = new wxCheckListBoxItem(this, nIndex);
+  return pItem;

 }
 
 }
 

+// return item size
+// ----------------
+// TODO:
+/*
+bool wxCheckListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
+{
+  if ( wxListBox::MSWOnMeasure(item) ) {
+    MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
+
+    // save item height
+    m_nItemHeight = pStruct->itemHeight;
+
+    // add place for the check mark
+    pStruct->itemWidth += wxOwnerDrawn::GetDefaultMarginWidth();
+
+    return TRUE;
+  }
+
+  return FALSE;
+}
+*/

 // check items
 // -----------
 
 // check items
 // -----------
 

-bool wxCheckListBox::IsChecked(unsigned int uiIndex) const
+bool wxCheckListBox::IsChecked(size_t uiIndex) const
+{
+  return GetItem(uiIndex)->IsChecked();
+}
+
+void wxCheckListBox::Check(size_t uiIndex, bool bCheck)

 {
 {

-    // TODO
-    return FALSE;
+  GetItem(uiIndex)->Check(bCheck);

 }
 
 }
 

-void wxCheckListBox::Check(unsigned int uiIndex, bool bCheck)
+// process events
+// --------------
+
+void wxCheckListBox::OnChar(wxKeyEvent& event)

 {
 {

-    // TODO
+  if ( event.KeyCode() == WXK_SPACE )
+    GetItem(GetSelection())->Toggle();
+  else
+    event.Skip();

 }
 
 }
 

+void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
+{
+  // clicking on the item selects it, clicking on the checkmark toggles
+  if ( event.GetX() <= wxOwnerDrawn::GetDefaultMarginWidth() ) {
+// TODO:
+/*
+      size_t nItem = (size_t)::SendMessage
+                               (
+                                (HWND)GetHWND(),
+                                LB_ITEMFROMPOINT,
+                                0,
+                                MAKELPARAM(event.GetX(), event.GetY())
+                               );
+*/
+    size_t nItem = 0;
+
+    if ( nItem < (size_t)m_nNumItems )
+      GetItem(nItem)->Toggle();
+    //else: it's not an error, just click outside of client zone
+  }
+  else {
+    // implement default behaviour: clicking on the item selects it
+    event.Skip();
+  }
+}
+
+#endif