// Name: src/msw/ownerdrw.cpp
// Purpose: implementation of wxOwnerDrawn class
// Author: Vadim Zeitlin
-// Modified by:
+// Modified by: Marcin Malich
// Created: 13.11.97
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
#if wxUSE_OWNER_DRAWN
-#ifndef WX_PRECOMP
- #include "wx/window.h"
- #include "wx/font.h"
- #include "wx/bitmap.h"
- #include "wx/image.h"
- #include "wx/dcmemory.h"
- #include "wx/menu.h"
- #include "wx/utils.h"
- #include "wx/settings.h"
- #include "wx/menuitem.h"
- #include "wx/module.h"
-#endif
-
#include "wx/ownerdrw.h"
-#include "wx/fontutil.h"
-
-#include "wx/msw/private.h"
#include "wx/msw/dc.h"
-
-#ifndef SPI_GETKEYBOARDCUES
-#define SPI_GETKEYBOARDCUES 0x100A
-#endif
+#include "wx/msw/private.h"
+#include "wx/msw/private/dc.h"
+#include "wx/msw/wrapcctl.h" // for HIMAGELIST
#ifndef DSS_HIDEPREFIX
#define DSS_HIDEPREFIX 0x0200
#endif
-class wxMSWSystemMenuFontModule : public wxModule
-{
-public:
- virtual bool OnInit()
- {
- return true;
- }
-
- virtual void OnExit()
- {
- if ( ms_systemMenuFont )
- {
- delete ms_systemMenuFont;
- ms_systemMenuFont = NULL;
- }
- }
-
- static const wxFont& GetSystemMenuFont()
- {
- if ( !ms_systemMenuFont )
- DoInitFont();
-
- return *ms_systemMenuFont;
- }
-
- static int GetSystemMenuHeight()
- {
- if ( !ms_systemMenuHeight )
- DoInitMetrics();
-
- return ms_systemMenuHeight;
- }
-
- static bool AlwaysShowCues()
- {
- if ( !ms_systemMenuHeight )
- DoInitMetrics();
-
- return ms_alwaysShowCues;
- }
-
-private:
- static NONCLIENTMETRICS GetNCM()
- {
- WinStruct<NONCLIENTMETRICS> nm;
- if ( !::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, 0, &nm, 0) )
- {
-#if WINVER >= 0x0600
- // a new field has been added to NONCLIENTMETRICS under Vista, so
- // the call to SystemParametersInfo() fails if we use the struct
- // size incorporating this new value on an older system -- retry
- // without it
- nm.cbSize -= sizeof(int);
- if ( !::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, 0, &nm, 0) )
-#endif // WINVER >= 0x0600
- {
- // maybe we should initialize the struct with some defaults?
- wxLogLastError(_T("SystemParametersInfo(SPI_GETNONCLIENTMETRICS)"));
- }
- }
-
- return nm;
- }
-
- static void DoInitMetrics()
- {
- // iMenuHeight is the menu bar height and the menu items are less tall,
- // although I don't know by how much -- below is the value for my system
- ms_systemMenuHeight = GetNCM().iMenuHeight - 4;
-
- wxASSERT_MSG( ms_systemMenuHeight > 0,
- "menu height should be positive" );
-
- if ( ::SystemParametersInfo(SPI_GETKEYBOARDCUES, 0,
- &ms_alwaysShowCues, 0) == 0 )
- {
- // if it's not supported, we must be on an old Windows version
- // which always shows them
- ms_alwaysShowCues = true;
- }
- }
-
- static void DoInitFont()
- {
- ms_systemMenuFont = new wxFont(wxNativeFontInfo(GetNCM().lfMenuFont));
- }
-
- static wxFont* ms_systemMenuFont;
- static int ms_systemMenuHeight;
- static bool ms_alwaysShowCues;
-
-
- DECLARE_DYNAMIC_CLASS(wxMSWSystemMenuFontModule)
-};
-
-// these static variables are from the wxMSWSystemMenuFontModule object
-// and reflect the system settings returned by the Win32 API's
-// SystemParametersInfo() call.
-
-wxFont* wxMSWSystemMenuFontModule::ms_systemMenuFont = NULL;
-int wxMSWSystemMenuFontModule::ms_systemMenuHeight = 0;
-bool wxMSWSystemMenuFontModule::ms_alwaysShowCues = false;
-
-IMPLEMENT_DYNAMIC_CLASS(wxMSWSystemMenuFontModule, wxModule)
-
-
-// VC++ 6 gives a warning here:
-//
-// return type for 'OwnerDrawnSet_wxImplementation_HashTable::iterator::
-// operator ->' is 'class wxOwnerDrawn ** ' (ie; not a UDT or reference to
-// a UDT. Will produce errors if applied using infix notation.
-//
-// shut it down
-#if defined __VISUALC__ && __VISUALC__ <= 1300
- #if __VISUALC__ >= 1200
- #pragma warning(push)
- #define POP_WARNINGS
- #endif
- #pragma warning(disable: 4284)
-#endif
-
-#include "wx/hashset.h"
-WX_DECLARE_HASH_SET(wxOwnerDrawn*, wxPointerHash, wxPointerEqual, OwnerDrawnSet);
+// ----------------------------------------------------------------------------
+// constants for base class
+// ----------------------------------------------------------------------------
-#ifdef POP_WARNINGS
- #pragma warning(pop)
-#endif
+int wxOwnerDrawnBase::ms_defaultMargin = 3;
// ============================================================================
// implementation of wxOwnerDrawn class
// ============================================================================
-// ctor
-// ----
-wxOwnerDrawn::wxOwnerDrawn(const wxString& str,
- bool bCheckable,
- bool bMenuItem)
- : m_strName(str)
-{
- if ( ms_nDefaultMarginWidth == 0 )
- {
- ms_nDefaultMarginWidth = ::GetSystemMetrics(SM_CXMENUCHECK) +
- wxSystemSettings::GetMetric(wxSYS_EDGE_X);
- ms_nLastMarginWidth = ms_nDefaultMarginWidth;
- }
-
- m_bCheckable = bCheckable;
- m_bOwnerDrawn = false;
- m_isMenuItem = bMenuItem;
- m_nHeight = 0;
- m_nMarginWidth = ms_nLastMarginWidth;
-}
-
-wxOwnerDrawn::~wxOwnerDrawn()
-{
-}
-
-bool wxOwnerDrawn::IsMenuItem() const
-{
- return m_isMenuItem;
-}
-
-
-// these items will be set during the first invocation of the ctor,
-// because the values will be determined by checking the system settings,
-// which is a chunk of code
-size_t wxOwnerDrawn::ms_nDefaultMarginWidth = 0;
-size_t wxOwnerDrawn::ms_nLastMarginWidth = 0;
-
-
-// drawing
-// -------
-
-wxFont wxOwnerDrawn::GetFontToUse() const
-{
- wxFont font = m_font;
- if ( !font.Ok() )
- {
- if ( IsMenuItem() )
- font = wxMSWSystemMenuFontModule::GetSystemMenuFont();
-
- if ( !font.Ok() )
- font = *wxNORMAL_FONT;
- }
-
- return font;
-}
-
-// get size of the item
-// The item size includes the menu string, the accel string,
-// the bitmap and size for a submenu expansion arrow...
-bool wxOwnerDrawn::OnMeasureItem(size_t *pwidth, size_t *pheight)
-{
- if ( IsOwnerDrawn() )
- {
- wxMemoryDC dc;
-
- wxString str = wxStripMenuCodes(m_strName);
-
- // if we have a valid accel string, then pad out
- // the menu string so that the menu and accel string are not
- // placed on top of each other.
- if ( !m_strAccel.empty() )
- {
- str.Pad(str.length()%8);
- str += m_strAccel;
- }
-
- dc.SetFont(GetFontToUse());
-
- wxCoord w, h;
- dc.GetTextExtent(str, &w, &h);
- *pwidth = w;
- *pheight = h;
-
- // add space at the end of the menu for the submenu expansion arrow
- // this will also allow offsetting the accel string from the right edge
- *pwidth += GetMarginWidth() + 16;
- }
- else // don't draw the text, just the bitmap (if any)
- {
- *pwidth =
- *pheight = 0;
- }
-
- // increase size to accommodate bigger bitmaps if necessary
- if (m_bmpChecked.Ok())
- {
- // Is BMP height larger than text height?
- size_t adjustedHeight = m_bmpChecked.GetHeight();
- if ( *pheight < adjustedHeight )
- *pheight = adjustedHeight;
-
- const size_t widthBmp = m_bmpChecked.GetWidth();
- if ( IsOwnerDrawn() )
- {
- // widen the margin to fit the bitmap if necessary
- if ((size_t)GetMarginWidth() < widthBmp)
- SetMarginWidth(widthBmp);
- }
- else // we must allocate enough space for the bitmap
- {
- *pwidth += widthBmp;
- }
- }
-
- // add a 4-pixel separator, otherwise menus look cluttered
- *pwidth += 4;
-
- // make sure that this item is at least as tall as the system menu height
- const size_t heightStd = wxMSWSystemMenuFontModule::GetSystemMenuHeight();
- if ( *pheight < heightStd )
- *pheight = heightStd;
-
- // remember height for use in OnDrawItem
- m_nHeight = *pheight;
-
- return true;
-}
-
// draw the item
-bool wxOwnerDrawn::OnDrawItem(wxDC& dc,
- const wxRect& rc,
- wxODAction act,
- wxODStatus st)
+bool wxOwnerDrawn::OnDrawItem(wxDC& dc, const wxRect& rc,
+ wxODAction, wxODStatus stat)
{
- // we do nothing on focus change
- if ( act == wxODFocusChanged )
+ // we do nothing if item isn't ownerdrawn
+ if ( !IsOwnerDrawn() )
return true;
-
- // this flag determines whether or not an edge will
- // be drawn around the bitmap. In most "windows classic"
- // applications, a 1-pixel highlight edge is drawn around
- // the bitmap of an item when it is selected. However,
- // with the new "luna" theme, no edge is drawn around
- // the bitmap because the background is white (this applies
- // only to "non-XP style" menus w/ bitmaps --
- // see IE 6 menus for an example)
-
- bool draw_bitmap_edge = true;
-
- // set the colors
- // --------------
- DWORD colBack, colText;
- if ( st & wxODSelected )
- {
- colBack = GetSysColor(COLOR_HIGHLIGHT);
- if (!(st & wxODDisabled))
- {
- colText = GetSysColor(COLOR_HIGHLIGHTTEXT);
- }
- else
- {
- colText = GetSysColor(COLOR_GRAYTEXT);
- }
- }
- else
- {
- // fall back to default colors if none explicitly specified
- colBack = m_colBack.Ok() ? wxColourToPalRGB(m_colBack)
- : GetSysColor(COLOR_MENU);
- colText = m_colText.Ok() ? wxColourToPalRGB(m_colText)
- : GetSysColor(COLOR_MENUTEXT);
- }
-
- if ( IsOwnerDrawn() )
- {
- // don't draw an edge around the bitmap, if background is white ...
- DWORD menu_bg_color = GetSysColor(COLOR_MENU);
- if ( ( GetRValue( menu_bg_color ) >= 0xf0 &&
- GetGValue( menu_bg_color ) >= 0xf0 &&
- GetBValue( menu_bg_color ) >= 0xf0 )
- )
- {
- draw_bitmap_edge = false;
- }
- }
- else // edge doesn't look well with default Windows drawing
- {
- draw_bitmap_edge = false;
- }
-
-
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
HDC hdc = GetHdcOf(*impl);
- COLORREF colOldText = ::SetTextColor(hdc, colText),
- colOldBack = ::SetBkColor(hdc, colBack);
-
- // *2, as in wxSYS_EDGE_Y
- int margin = GetMarginWidth() + 2 * wxSystemSettings::GetMetric(wxSYS_EDGE_X);
-
- // select the font and draw the text
- // ---------------------------------
+ RECT rect;
+ wxCopyRectToRECT(rc, rect);
- // determine where to draw and leave space for a check-mark.
- // + 1 pixel to separate the edge from the highlight rectangle
- int xText = rc.x + margin + 1;
+ {
+ // set the font and colors
+ wxFont font;
+ GetFontToUse(font);
+ wxColour colText, colBack;
+ GetColourToUse(stat, colText, colBack);
- // using native API because it recognizes '&'
- if ( IsOwnerDrawn() )
- {
- int nPrevMode = SetBkMode(hdc, TRANSPARENT);
- AutoHBRUSH hbr(colBack);
- SelectInHDC selBrush(hdc, hbr);
+ SelectInHDC selFont(hdc, GetHfontOf(font));
- RECT rectFill = { rc.GetLeft(), rc.GetTop(),
- rc.GetRight() + 1, rc.GetBottom() + 1 };
+ wxMSWImpl::wxTextColoursChanger textCol(hdc, colText, colBack);
+ wxMSWImpl::wxBkModeChanger bkMode(hdc, wxBRUSHSTYLE_TRANSPARENT);
- if ( (st & wxODSelected) && m_bmpChecked.Ok() && draw_bitmap_edge )
- {
- // only draw the highlight under the text, not under
- // the bitmap or checkmark
- rectFill.left = xText;
- }
- FillRect(hdc, &rectFill, hbr);
+ AutoHBRUSH hbr(wxColourToPalRGB(colBack));
+ SelectInHDC selBrush(hdc, hbr);
- // use default font if no font set
- wxFont fontToUse = GetFontToUse();
- SelectInHDC selFont(hdc, GetHfontOf(fontToUse));
+ ::FillRect(hdc, &rect, hbr);
- wxString strMenuText = m_strName.BeforeFirst('\t');
+ // using native API because it recognizes '&'
- xText += 3; // separate text from the highlight rectangle
+ wxString text = GetName();
SIZE sizeRect;
- ::GetTextExtentPoint32(hdc, strMenuText.c_str(), strMenuText.length(), &sizeRect);
+ ::GetTextExtentPoint32(hdc, text.c_str(), text.length(), &sizeRect);
int flags = DST_PREFIXTEXT;
- if ( (st & wxODDisabled) && !(st & wxODSelected) )
+ if ( (stat & wxODDisabled) && !(stat & wxODSelected) )
flags |= DSS_DISABLED;
- if ( (st & wxODHidePrefix) &&
- !wxMSWSystemMenuFontModule::AlwaysShowCues() )
+ if ( (stat & wxODHidePrefix) )
flags |= DSS_HIDEPREFIX;
- ::DrawState
- (
- hdc,
- NULL,
- NULL,
- (LPARAM)strMenuText.wx_str(),
- strMenuText.length(),
- xText,
- rc.y + (rc.GetHeight() - sizeRect.cy + 1)/2, // centre vertically
- rc.GetWidth() - margin,
- sizeRect.cy,
- flags
- );
-
- // ::SetTextAlign(hdc, TA_RIGHT) doesn't work with DSS_DISABLED or DSS_MONO
- // as the last parameter in DrawState() (at least with Windows98). So we have
- // to take care of right alignment ourselves.
- if ( !m_strAccel.empty() )
- {
- int accel_width, accel_height;
- dc.GetTextExtent(m_strAccel, &accel_width, &accel_height);
- // right align accel string with right edge of menu ( offset by the
- // margin width )
- ::DrawState(hdc, NULL, NULL,
- (LPARAM)m_strAccel.wx_str(),
- m_strAccel.length(),
- rc.GetWidth()-16-accel_width, rc.y+(int) ((rc.GetHeight()-sizeRect.cy)/2.0),
- 0, 0,
- DST_TEXT |
- (((st & wxODDisabled) && !(st & wxODSelected)) ? DSS_DISABLED : 0));
- }
-
- (void)SetBkMode(hdc, nPrevMode);
- }
+ int x = rc.x + GetMarginWidth();
+ int y = rc.y + (rc.GetHeight() - sizeRect.cy) / 2;
+ int cx = rc.GetWidth() - GetMarginWidth();
+ int cy = sizeRect.cy;
+ ::DrawState(hdc, NULL, NULL, (LPARAM)text.wx_str(),
+ text.length(), x, y, cx, cy, flags);
- // draw the bitmap
- // ---------------
- if ( IsCheckable() && !m_bmpChecked.Ok() )
- {
- if ( st & wxODChecked )
- {
- // what goes on: DrawFrameControl creates a b/w mask,
- // then we copy it to screen to have right colors
-
- // first create a monochrome bitmap in a memory DC
- HDC hdcMem = CreateCompatibleDC(hdc);
- HBITMAP hbmpCheck = CreateBitmap(margin, m_nHeight, 1, 1, 0);
- SelectObject(hdcMem, hbmpCheck);
-
- // then draw a check mark into it
- RECT rect = { 0, 0, margin, m_nHeight };
- if ( m_nHeight > 0 )
- {
- ::DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK);
- }
+ } // reset to default the font, colors and brush
- // finally copy it to screen DC and clean up
- BitBlt(hdc, rc.x, rc.y, margin, m_nHeight, hdcMem, 0, 0, SRCCOPY);
+ if (stat & wxODHasFocus)
+ ::DrawFocusRect(hdc, &rect);
- DeleteDC(hdcMem);
- DeleteObject(hbmpCheck);
- }
- }
- else
- {
- wxBitmap bmp;
+ return true;
+}
- if ( st & wxODDisabled )
- {
- bmp = GetDisabledBitmap();
- }
+// ----------------------------------------------------------------------------
+// global helper functions implemented here
+// ----------------------------------------------------------------------------
- if ( !bmp.Ok() )
- {
- // for not checkable bitmaps we should always use unchecked one
- // because their checked bitmap is not set
- bmp = GetBitmap(!IsCheckable() || (st & wxODChecked));
+BOOL wxDrawStateBitmap(HDC hDC, HBITMAP hBitmap, int x, int y, UINT uState)
+{
+ // determine size of bitmap image
+ BITMAP bmp;
+ if ( !::GetObject(hBitmap, sizeof(BITMAP), &bmp) )
+ return FALSE;
+
+ BOOL result;
-#if wxUSE_IMAGE
- if ( bmp.Ok() && st & wxODDisabled )
+ switch ( uState )
+ {
+ case wxDSB_NORMAL:
+ case wxDSB_SELECTED:
{
- // we need to grey out the bitmap as we don't have any specific
- // disabled bitmap
- wxImage imgGrey = bmp.ConvertToImage().ConvertToGreyscale();
- if ( imgGrey.Ok() )
- bmp = wxBitmap(imgGrey);
+ // uses image list functions to draw
+ // - normal bitmap with support transparency
+ // (image list internally create mask etc.)
+ // - blend bitmap with the background colour
+ // (like default selected items)
+ HIMAGELIST hIml = ::ImageList_Create(bmp.bmWidth, bmp.bmHeight,
+ ILC_COLOR32 | ILC_MASK, 1, 1);
+ ::ImageList_Add(hIml, hBitmap, NULL);
+ UINT fStyle = uState == wxDSB_SELECTED ? ILD_SELECTED : ILD_NORMAL;
+ result = ::ImageList_Draw(hIml, 0, hDC, x, y, fStyle);
+ ::ImageList_Destroy(hIml);
}
-#endif // wxUSE_IMAGE
- }
-
- if ( bmp.Ok() )
- {
- wxMemoryDC dcMem(&dc);
- dcMem.SelectObjectAsSource(bmp);
+ break;
- // center bitmap
- int nBmpWidth = bmp.GetWidth(),
- nBmpHeight = bmp.GetHeight();
+ case wxDSB_DISABLED:
+ result = ::DrawState(hDC, NULL, NULL, (LPARAM)hBitmap, 0, x, y,
+ bmp.bmWidth, bmp.bmHeight,
+ DST_BITMAP | DSS_DISABLED);
+ break;
- // there should be enough space!
- wxASSERT((nBmpWidth <= rc.GetWidth()) && (nBmpHeight <= rc.GetHeight()));
-
- int heightDiff = m_nHeight - nBmpHeight;
- dc.Blit(rc.x + (margin - nBmpWidth) / 2,
- rc.y + heightDiff / 2,
- nBmpWidth, nBmpHeight,
- &dcMem, 0, 0, wxCOPY, true /* use mask */);
-
- if ( ( st & wxODSelected ) && !( st & wxODDisabled ) && draw_bitmap_edge )
- {
- RECT rectBmp = { rc.GetLeft(), rc.GetTop(),
- rc.GetLeft() + margin,
- rc.GetTop() + m_nHeight };
- SetBkColor(hdc, colBack);
-
- DrawEdge(hdc, &rectBmp, BDR_RAISEDINNER, BF_RECT);
- }
- }
+ default:
+ wxFAIL_MSG( wxT("DrawStateBitmap: unknown wxDSBStates value") );
+ result = FALSE;
}
- ::SetTextColor(hdc, colOldText);
- ::SetBkColor(hdc, colOldBack);
-
- return true;
+ return result;
}
-
#endif // wxUSE_OWNER_DRAWN
projects / wxWidgets.git / blobdiff