///////////////////////////////////////////////////////////////////////////////
// Name: checklst.cpp
// Purpose: implementation of wxCheckListBox class
-// Author: AUTHOR
+// Author: David Webster
// Modified by:
-// Created: ??/??/98
+// Created: 10/13/99
// RCS-ID: $Id$
-// Copyright: (c) AUTHOR
+// Copyright: (c) David Webster
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// 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
IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
#endif
+// ----------------------------------------------------------------------------
+// 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
+#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
// ----------------------------------------------------------------------------
// define event table
// ------------------
BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
+ EVT_CHAR(wxCheckListBox::OnChar)
+ EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
END_EVENT_TABLE()
// control creation
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_noItems,
+ wxT("invalid index in wxListBox::Delete") );
+
+ wxListBox::Delete(N);
+
+ // free memory
+ delete m_aItems[N];
+
+ m_aItems.Remove(N);
+}
+
+void wxCheckListBox::InsertItems(int nItems, const wxString items[], int pos)
+{
+ wxCHECK_RET( pos >= 0 && pos <= m_noItems,
+ 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
// -----------
-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_noItems )
+ 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
projects / wxWidgets.git / blobdiff