X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/74052fe83bbeb7e37e98d57c88a05e8a1425c86d..60372b0d54379701d62edf5595a7dc25c48330e1:/src/msw/ownerdrw.cpp diff --git a/src/msw/ownerdrw.cpp b/src/msw/ownerdrw.cpp index b41cb1734a..6fb88beabb 100644 --- a/src/msw/ownerdrw.cpp +++ b/src/msw/ownerdrw.cpp @@ -2,7 +2,7 @@ // 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 @@ -18,538 +18,133 @@ #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 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