X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a21175918ecedbae7d04a58acca5e90a6b59633d..15b850072622e84759c9592e1e591ecdee4aee1c:/src/msw/button.cpp?ds=sidebyside diff --git a/src/msw/button.cpp b/src/msw/button.cpp index 70edb407a2..2f68d8b362 100644 --- a/src/msw/button.cpp +++ b/src/msw/button.cpp @@ -37,13 +37,14 @@ #include "wx/dcscreen.h" #include "wx/dcclient.h" #include "wx/toplevel.h" - #include "wx/imaglist.h" #endif +#include "wx/imaglist.h" #include "wx/stockitem.h" #include "wx/msw/private.h" #include "wx/msw/private/button.h" #include "wx/msw/private/dc.h" +#include "wx/private/window.h" using namespace wxMSWImpl; @@ -423,7 +424,7 @@ void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label) // the control unless it already has new lines in its label) long styleOld = ::GetWindowLong(hwnd, GWL_STYLE), styleNew; - if ( label.find(_T('\n')) != wxString::npos ) + if ( label.find(wxT('\n')) != wxString::npos ) styleNew = styleOld | BS_MULTILINE; else styleNew = styleOld & ~BS_MULTILINE; @@ -457,7 +458,10 @@ wxSize wxMSWButton::ComputeBestSize(wxControl *btn) // creating the button if ( !btn->HasFlag(wxBU_EXACTFIT) ) { - wxSize sizeDef = wxButton::GetDefaultSize(); + // The size of a standard button in the dialog units is 50x14, use it. + // Note that we intentionally don't use GetDefaultSize() here, because + // it's inexact -- dialog units depend on this dialog's font. + wxSize sizeDef = btn->ConvertDialogToPixels(wxSize(50, 14)); if ( sizeBtn.x < sizeDef.x ) sizeBtn.x = sizeDef.x; if ( sizeBtn.y < sizeDef.y ) @@ -509,7 +513,7 @@ bool wxButton::Create(wxWindow *parent, // value and the label is not set yet when MSWGetStyle() is called msStyle |= wxMSWButton::GetMultilineStyle(label); - return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle); + return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, exstyle); } wxButton::~wxButton() @@ -574,8 +578,10 @@ wxSize wxButton::DoGetBestSize() const { wxSize size; - // account for the text part - if ( ShowsLabel() ) + // account for the text part if we have it or if we don't have any image at + // all (buttons initially created with empty label should still have a non + // zero size) + if ( ShowsLabel() || !m_imageData ) { size = wxMSWButton::ComputeBestSize(const_cast(this)); } @@ -601,42 +607,45 @@ wxSize wxButton::DoGetBestSize() const // account for the user-specified margins size += 2*m_imageData->GetBitmapMargins(); - // and also for the margins we always add internally - int marginH = 0, - marginV = 0; -#if wxUSE_UXTHEME - if ( wxUxThemeEngine::GetIfActive() ) + // and also for the margins we always add internally (unless we have no + // border at all in which case the button has exactly the same size as + // bitmap and so no margins should be used) + if ( !HasFlag(wxBORDER_NONE) ) { - wxUxThemeHandle theme(const_cast(this), L"BUTTON"); + int marginH = 0, + marginV = 0; +#if wxUSE_UXTHEME + if ( wxUxThemeEngine::GetIfActive() ) + { + wxUxThemeHandle theme(const_cast(this), L"BUTTON"); - MARGINS margins; - wxUxThemeEngine::Get()->GetThemeMargins(theme, NULL, - BP_PUSHBUTTON, PBS_NORMAL, - TMT_CONTENTMARGINS, NULL, - &margins); + MARGINS margins; + wxUxThemeEngine::Get()->GetThemeMargins(theme, NULL, + BP_PUSHBUTTON, + PBS_NORMAL, + TMT_CONTENTMARGINS, + NULL, + &margins); - // XP doesn't draw themed buttons correctly when the client area is - // smaller than 8x8 - enforce this minimum size for small bitmaps - size.IncTo(wxSize(8, 8)); + // XP doesn't draw themed buttons correctly when the client + // area is smaller than 8x8 - enforce this minimum size for + // small bitmaps + size.IncTo(wxSize(8, 8)); - // don't add margins for the borderless buttons, they don't need - // them and it just makes them appear larger than needed - if ( !HasFlag(wxBORDER_NONE) ) - { marginH = margins.cxLeftWidth + margins.cxRightWidth + 2*XP_BUTTON_EXTRA_MARGIN; marginV = margins.cyTopHeight + margins.cyBottomHeight + 2*XP_BUTTON_EXTRA_MARGIN; } - } - else + else #endif // wxUSE_UXTHEME - { - marginH = - marginV = OD_BUTTON_MARGIN; - } + { + marginH = + marginV = OD_BUTTON_MARGIN; + } - size.IncBy(marginH, marginV); + size.IncBy(marginH, marginV); + } CacheBestSize(size); } @@ -654,16 +663,20 @@ wxSize wxButtonBase::GetDefaultSize() wxScreenDC dc; dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); - // the size of a standard button in the dialog units is 50x14, - // translate this to pixels - // NB1: the multipliers come from the Windows convention - // NB2: the extra +1/+2 were needed to get the size be the same as the - // size of the buttons in the standard dialog - I don't know how - // this happens, but on my system this size is 75x23 in pixels and - // 23*8 isn't even divisible by 14... Would be nice to understand - // why these constants are needed though! - s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4; - s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8; + // The size of a standard button in the dialog units is 50x14, + // translate this to pixels. + // + // Windows' computes dialog units using average character width over + // upper- and lower-case ASCII alphabet and not using the average + // character width metadata stored in the font; see + // http://support.microsoft.com/default.aspx/kb/145994 for detailed + // discussion. + // + // NB: wxMulDivInt32() is used, because it correctly rounds the result + + const wxSize base = wxPrivate::GetAverageASCIILetterSize(dc); + s_sizeBtn.x = wxMulDivInt32(50, base.x, 4); + s_sizeBtn.y = wxMulDivInt32(14, base.y, 8); } return s_sizeBtn; @@ -674,6 +687,14 @@ wxSize wxButtonBase::GetDefaultSize() // ---------------------------------------------------------------------------- /* + The comment below and all this code is probably due to not using WM_NEXTDLGCTL + message when changing focus (but just SetFocus() which is not enough), see + http://blogs.msdn.com/oldnewthing/archive/2004/08/02/205624.aspx for the + full explanation. + + TODO: Do use WM_NEXTDLGCTL and get rid of all this code. + + "Everything you ever wanted to know about the default buttons" or "Why do we have to do all this?" @@ -740,10 +761,10 @@ static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win) win = parent; } - wxASSERT_MSG( win, _T("button without top level parent?") ); + wxASSERT_MSG( win, wxT("button without top level parent?") ); wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow); - wxASSERT_MSG( tlw, _T("logic error in GetTLWParentIfNotBeingDeleted()") ); + wxASSERT_MSG( tlw, wxT("logic error in GetTLWParentIfNotBeingDeleted()") ); return tlw; } @@ -795,7 +816,7 @@ wxButton::SetDefaultStyle(wxButton *btn, bool on) return; wxWindow * const tlw = wxGetTopLevelParent(btn); - wxCHECK_RET( tlw, _T("button without top level window?") ); + wxCHECK_RET( tlw, wxT("button without top level window?") ); ::SendMessage(GetHwndOf(tlw), DM_SETDEFID, btn->GetId(), 0L); @@ -956,16 +977,18 @@ void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which) m_imageData = new wxODButtonImageData(this, bitmap); MakeOwnerDrawn(); } - - // if a bitmap was assigned to the bitmap, its best size must be - // changed to account for it - InvalidateBestSize(); } else { m_imageData->SetBitmap(bitmap, which); } + // it should be enough to only invalidate the best size when the normal + // bitmap changes as all bitmaps assigned to the button should be of the + // same size anyhow + if ( which == State_Normal ) + InvalidateBestSize(); + Refresh(); } @@ -1027,7 +1050,7 @@ void DrawButtonText(HDC hdc, // center text horizontally in any case flags |= DT_CENTER; - if ( text.find(_T('\n')) != wxString::npos ) + if ( text.find(wxT('\n')) != wxString::npos ) { // draw multiline label @@ -1263,48 +1286,51 @@ bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis) CopyRect(&rectBtn, &lpDIS->rcItem); // draw the button background -#if wxUSE_UXTHEME - if ( wxUxThemeEngine::GetIfActive() ) + if ( !HasFlag(wxBORDER_NONE) ) { - DrawXPBackground(this, hdc, rectBtn, state); - } - else +#if wxUSE_UXTHEME + if ( wxUxThemeEngine::GetIfActive() ) + { + DrawXPBackground(this, hdc, rectBtn, state); + } + else #endif // wxUSE_UXTHEME - { - COLORREF colBg = wxColourToRGB(GetBackgroundColour()); + { + COLORREF colBg = wxColourToRGB(GetBackgroundColour()); - // first, draw the background - AutoHBRUSH hbrushBackground(colBg); - FillRect(hdc, &rectBtn, hbrushBackground); + // first, draw the background + AutoHBRUSH hbrushBackground(colBg); + FillRect(hdc, &rectBtn, hbrushBackground); - // draw the border for the current state - bool selected = (state & ODS_SELECTED) != 0; - if ( !selected ) - { - wxTopLevelWindow * - tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); - if ( tlw ) + // draw the border for the current state + bool selected = (state & ODS_SELECTED) != 0; + if ( !selected ) { - selected = tlw->GetDefaultItem() == this; + wxTopLevelWindow * + tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); + if ( tlw ) + { + selected = tlw->GetDefaultItem() == this; + } } - } - DrawButtonFrame(hdc, rectBtn, selected, pushed); - } + DrawButtonFrame(hdc, rectBtn, selected, pushed); + } - // draw the focus rectangle if we need it - if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) ) - { - DrawFocusRect(hdc, &rectBtn); + // draw the focus rectangle if we need it + if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) ) + { + DrawFocusRect(hdc, &rectBtn); #if wxUSE_UXTHEME - if ( !wxUxThemeEngine::GetIfActive() ) + if ( !wxUxThemeEngine::GetIfActive() ) #endif // wxUSE_UXTHEME - { - if ( pushed ) { - // the label is shifted by 1 pixel to create "pushed" effect - OffsetRect(&rectBtn, 1, 1); + if ( pushed ) + { + // the label is shifted by 1 pixel to create "pushed" effect + OffsetRect(&rectBtn, 1, 1); + } } } }