X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1b24a68eba162797e54756c6562fb4b4b54112cb..9f93b45e59e93e17850bbc37a8960240072bc1c0:/src/msw/ownerdrw.cpp diff --git a/src/msw/ownerdrw.cpp b/src/msw/ownerdrw.cpp index 2c2ec2a8ea..c7b56a1dbc 100644 --- a/src/msw/ownerdrw.cpp +++ b/src/msw/ownerdrw.cpp @@ -2,19 +2,16 @@ // Name: msw/ownerdrw.cpp // Purpose: implementation of wxOwnerDrawn class // Author: Vadim Zeitlin -// Modified by: +// Modified by: // Created: 13.11.97 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" +#include "wx/msw/private.h" #ifdef __BORLANDC__ #pragma hdrstop @@ -30,11 +27,93 @@ #include "wx/utils.h" #endif +#include "wx/settings.h" #include "wx/ownerdrw.h" #include "wx/menuitem.h" +#include "wx/fontutil.h" +#include "wx/module.h" #if wxUSE_OWNER_DRAWN +#ifndef SPI_GETKEYBOARDCUES +#define SPI_GETKEYBOARDCUES 0x100A +#endif + +class wxMSWSystemMenuFontModule : public wxModule +{ +public: + + virtual bool OnInit() + { + ms_systemMenuFont = new wxFont; + +#if defined(__WXMSW__) && defined(__WIN32__) && defined(SM_CXMENUCHECK) + NONCLIENTMETRICS nm; + nm.cbSize = sizeof(NONCLIENTMETRICS); + SystemParametersInfo(SPI_GETNONCLIENTMETRICS,0,&nm,0); + + ms_systemMenuButtonWidth = nm.iMenuHeight; + ms_systemMenuHeight = nm.iMenuHeight; + + // create menu font + wxNativeFontInfo info; + memcpy(&info.lf, &nm.lfMenuFont, sizeof(LOGFONT)); + ms_systemMenuFont->Create(info); + + if (SystemParametersInfo(SPI_GETKEYBOARDCUES, 0, &ms_showCues, 0) == 0) + ms_showCues = true; +#endif + + return true; + } + + virtual void OnExit() + { + delete ms_systemMenuFont; + ms_systemMenuFont = NULL; + } + + static wxFont* ms_systemMenuFont; + static int ms_systemMenuButtonWidth; // windows clean install default + static int ms_systemMenuHeight; // windows clean install default + static bool ms_showCues; +private: + 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_systemMenuButtonWidth = 18; // windows clean install default +int wxMSWSystemMenuFontModule::ms_systemMenuHeight = 18; // windows clean install default +bool wxMSWSystemMenuFontModule::ms_showCues = true; + +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); + +#ifdef POP_WARNINGS + #pragma warning(pop) +#endif // ============================================================================ // implementation of wxOwnerDrawn class @@ -42,215 +121,346 @@ // ctor // ---- -wxOwnerDrawn::wxOwnerDrawn(const wxString& str, - bool bCheckable, bool bMenuItem) +wxOwnerDrawn::wxOwnerDrawn(const wxString& str, + bool bCheckable, + bool bMenuItem) : m_strName(str) { - m_bCheckable = bCheckable; - m_bOwnerDrawn = FALSE; - m_nHeight = 0; - m_nMarginWidth = ms_nLastMarginWidth; + 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; + m_nMinHeight = wxMSWSystemMenuFontModule::ms_systemMenuHeight; +} + +wxOwnerDrawn::~wxOwnerDrawn() +{ +} + +bool wxOwnerDrawn::IsMenuItem() const +{ + return m_isMenuItem; } -#if defined(__WXMSW__) && defined(__WIN32__) && defined(SM_CXMENUCHECK) - size_t wxOwnerDrawn::ms_nDefaultMarginWidth = GetSystemMetrics(SM_CXMENUCHECK); -#else // # what is the reasonable default? - size_t wxOwnerDrawn::ms_nDefaultMarginWidth = 15; -#endif -size_t wxOwnerDrawn::ms_nLastMarginWidth = ms_nDefaultMarginWidth; +// these items will be set during the first invocation of the c'tor, +// 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::ms_systemMenuFont; + + 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) { - wxMemoryDC dc; - dc.SetFont(GetFont()); + if ( IsOwnerDrawn() ) + { + wxMemoryDC dc; - // ## ugly... - wxChar *szStripped = new wxChar[m_strName.Len()]; - wxStripMenuCodes((wxChar *)m_strName.c_str(), szStripped); - wxString str = szStripped; - delete [] szStripped; + wxString str = wxStripMenuCodes(m_strName); - // # without this menu items look too tightly packed (at least under Windows) - str += wxT('W'); // 'W' is typically the widest letter + // 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.GetTextExtent(str, (long *)pwidth, (long *)pheight); + dc.SetFont(GetFontToUse()); - // JACS: items still look too tightly packed, so adding 2 pixels. - (*pheight) = (*pheight) + 2; + dc.GetTextExtent(str, (long *)pwidth, (long *)pheight); - m_nHeight = *pheight; // remember height for use in OnDrawItem + // 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; + } - return TRUE; -} + // increase size to accommodate bigger bitmaps if necessary + if (m_bmpChecked.Ok()) + { + // Is BMP height larger then text height? + size_t adjustedHeight = m_bmpChecked.GetHeight() + + 2*wxSystemSettings::GetMetric(wxSYS_EDGE_Y); + 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; + } + } -// searching for this macro you'll find all the code where I'm using the native -// Win32 GDI functions and not wxWindows ones. Might help to whoever decides to -// port this code to X. (VZ) + // add a 4-pixel separator, otherwise menus look cluttered + *pwidth += 4; -// JACS: TODO. Why does a disabled but highlighted item still -// get drawn embossed? How can we tell DrawState that we don't want the -// embossing? + // make sure that this item is at least as tall as the system menu height + if ( *pheight < m_nMinHeight ) + *pheight = m_nMinHeight; -#if defined(__WIN32__) && !defined(__SC__) && !defined(__TWIN32__) -#define O_DRAW_NATIVE_API // comments below explain why I use it -#endif + // 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 act, + wxODStatus st) { - // we do nothing on focus change - if ( act == wxODFocusChanged ) - return TRUE; - - // wxColor <-> RGB - #define ToRGB(col) RGB(col.Red(), col.Green(), col.Blue()) - #define UnRGB(col) GetRValue(col), GetGValue(col), GetBValue(col) - - // set the colors - // -------------- - DWORD colBack, colText; - if ( st & wxODSelected ) { - colBack = GetSysColor(COLOR_HIGHLIGHT); - colText = GetSysColor(COLOR_HIGHLIGHTTEXT); - } - else { - // fall back to default colors if none explicitly specified - colBack = m_colBack.Ok() ? ToRGB(m_colBack) : GetSysColor(COLOR_WINDOW); - colText = m_colText.Ok() ? ToRGB(m_colText) : GetSysColor(COLOR_WINDOWTEXT); - } - - #ifdef O_DRAW_NATIVE_API - #define hdc (HDC)dc.GetHDC() - COLORREF colOldText = ::SetTextColor(hdc, colText), - colOldBack = ::SetBkColor(hdc, colBack); - #else - dc.SetTextForeground(wxColor(UnRGB(colText))); - dc.SetTextBackground(wxColor(UnRGB(colBack))); - #endif - - // select the font and draw the text - // --------------------------------- - - // determine where to draw and leave space for a check-mark. - int x = rc.x + GetMarginWidth(); + // we do nothing on focus change + if ( act == wxODFocusChanged ) + 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); + } - // using native API because it reckognizes '&' - #ifdef O_DRAW_NATIVE_API - int nPrevMode = SetBkMode(hdc, TRANSPARENT); - HBRUSH hbr = CreateSolidBrush(colBack), - hPrevBrush = (HBRUSH)SelectObject(hdc, hbr); + 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; + } - RECT rectAll = { rc.GetLeft(), rc.GetTop(), rc.GetRight(), rc.GetBottom() }; - FillRect(hdc, &rectAll, hbr); - DeleteObject(hbr); + HDC hdc = GetHdcOf(dc); + COLORREF colOldText = ::SetTextColor(hdc, colText), + colOldBack = ::SetBkColor(hdc, colBack); - // use default font if no font set - HFONT hfont; - if ( m_font.Ok() ) { - m_font.RealizeResource(); - hfont = (HFONT)m_font.GetResourceHandle(); - } - else { - hfont = (HFONT)::GetStockObject(SYSTEM_FONT); + // *2, as in wxSYS_EDGE_Y + int margin = GetMarginWidth() + 2 * wxSystemSettings::GetMetric(wxSYS_EDGE_X); + + // select the font and draw the text + // --------------------------------- + + + // 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; + + + // using native API because it recognizes '&' + if ( IsOwnerDrawn() ) + { + int nPrevMode = SetBkMode(hdc, TRANSPARENT); + AutoHBRUSH hbr(colBack); + SelectInHDC selBrush(hdc, hbr); + + RECT rectFill = { rc.GetLeft(), rc.GetTop(), + rc.GetRight() + 1, rc.GetBottom() + 1 }; + + 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); + + // use default font if no font set + wxFont fontToUse = GetFontToUse(); + SelectInHDC selFont(hdc, GetHfontOf(fontToUse)); + + wxString strMenuText = m_strName.BeforeFirst('\t'); + + xText += 3; // separate text from the highlight rectangle + + SIZE sizeRect; + ::GetTextExtentPoint32(hdc, strMenuText.c_str(), strMenuText.Length(), &sizeRect); + ::DrawState(hdc, NULL, NULL, + (LPARAM)strMenuText.c_str(), strMenuText.length(), + xText, rc.y + (int) ((rc.GetHeight()-sizeRect.cy)/2.0), // centre text vertically + rc.GetWidth()-margin, sizeRect.cy, + DST_PREFIXTEXT | + (((st & wxODDisabled) && !(st & wxODSelected)) ? DSS_DISABLED : 0) | + (((st & wxODHidePrefix) && !wxMSWSystemMenuFontModule::ms_showCues) ? 512 : 0)); // 512 == DSS_HIDEPREFIX + + // ::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.c_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); } - HFONT hPrevFont = (HFONT) ::SelectObject(hdc, hfont); - DrawState(hdc, NULL, NULL, - (LPARAM)(const wxChar *)m_strName, m_strName.Length(), - x, rc.y, rc.GetWidth(), rc.GetHeight(), - DST_PREFIXTEXT | ( st & wxODDisabled ? DSS_DISABLED : 0) ); - - (void)SelectObject(hdc, hPrevBrush); - (void)SelectObject(hdc, hPrevFont); - (void)SetBkMode(hdc, nPrevMode); - #else - dc.SetFont(GetFont()); - dc.DrawText(m_strName, x, rc.y); - #endif //O_DRAW_NATIVE_API - - // draw the bitmap - // --------------- - if ( IsCheckable() && !m_bmpChecked.Ok() ) { - if ( st & wxODChecked ) { - // using native APIs for performance and simplicity -#ifdef O_DRAW_NATIVE_API - // 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(GetMarginWidth(), m_nHeight, 1, 1, 0); - SelectObject(hdcMem, hbmpCheck); - - // then draw a check mark into it - RECT rect = { 0, 0, GetMarginWidth(), m_nHeight }; - if ( m_nHeight > 0 ) - { -#ifndef __SC__ - DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK); -#endif - } - - // finally copy it to screen DC and clean up - BitBlt(hdc, rc.x, rc.y, GetMarginWidth(), m_nHeight, - hdcMem, 0, 0, SRCCOPY); - - DeleteDC(hdcMem); - DeleteObject(hbmpCheck); -#else - // #### to do: perhaps using Marlett font (create equiv. font under X) -// wxFAIL("not implemented"); -#endif //O_DRAW_NATIVE_API + + // 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); + } + + // finally copy it to screen DC and clean up + BitBlt(hdc, rc.x, rc.y, margin, m_nHeight, hdcMem, 0, 0, SRCCOPY); + + DeleteDC(hdcMem); + DeleteObject(hbmpCheck); + } } - } - else { - // for uncheckable item we use only the 'checked' bitmap - wxBitmap bmp(GetBitmap(IsCheckable() ? ((st & wxODChecked) != 0) : TRUE)); - if ( bmp.Ok() ) { - wxMemoryDC dcMem(&dc); - dcMem.SelectObject(bmp); - - // center bitmap - int nBmpWidth = bmp.GetWidth(), - nBmpHeight = bmp.GetHeight(); - - // there should be enough place! - wxASSERT((nBmpWidth <= rc.GetWidth()) && (nBmpHeight <= rc.GetHeight())); - - //MT: blit with mask enabled. - dc.Blit(rc.x + (GetMarginWidth() - nBmpWidth) / 2, - rc.y + (m_nHeight - nBmpHeight) /2, - nBmpWidth, nBmpHeight, - &dcMem, 0, 0, wxCOPY, TRUE); - - if ( st & wxODSelected ) { - #ifdef O_DRAW_NATIVE_API - RECT rectBmp = { rc.GetLeft(), rc.GetTop(), - rc.GetLeft() + GetMarginWidth(), - rc.GetTop() + m_nHeight }; - SetBkColor(hdc, colBack); - DrawEdge(hdc, &rectBmp, EDGE_RAISED, BF_SOFT | BF_RECT); - #else - // ## to write portable DrawEdge - #endif //O_DRAW_NATIVE_API - } + else + { + wxBitmap bmp; + + if ( st & wxODDisabled ) + { + bmp = GetDisabledBitmap(); + } + + 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)); + } + + if ( bmp.Ok() ) + { + wxMemoryDC dcMem(&dc); + dcMem.SelectObject(bmp); + + // center bitmap + int nBmpWidth = bmp.GetWidth(), + nBmpHeight = bmp.GetHeight(); + + // 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); + } + } } - } - #ifdef O_DRAW_NATIVE_API ::SetTextColor(hdc, colOldText); ::SetBkColor(hdc, colOldBack); - #undef hdc - #endif //O_DRAW_NATIVE_API - - return TRUE; + return true; }