#include "wx/generic/private/markuptext.h"
#endif // wxUSE_MARKUP
-using namespace wxMSWImpl;
-
-#if wxUSE_UXTHEME
- #include "wx/msw/uxtheme.h"
-
- // no need to include tmschema.h
- #ifndef BP_PUSHBUTTON
- #define BP_PUSHBUTTON 1
-
- #define PBS_NORMAL 1
- #define PBS_HOT 2
- #define PBS_PRESSED 3
- #define PBS_DISABLED 4
- #define PBS_DEFAULTED 5
-
- #define TMT_CONTENTMARGINS 3602
- #endif
-
- // provide the necessary declarations ourselves if they're missing from
- // headers
- #ifndef BCM_SETIMAGELIST
- #define BCM_SETIMAGELIST 0x1602
- #define BCM_SETTEXTMARGIN 0x1604
-
- enum
- {
- BUTTON_IMAGELIST_ALIGN_LEFT,
- BUTTON_IMAGELIST_ALIGN_RIGHT,
- BUTTON_IMAGELIST_ALIGN_TOP,
- BUTTON_IMAGELIST_ALIGN_BOTTOM
- };
-
- struct BUTTON_IMAGELIST
- {
- HIMAGELIST himl;
- RECT margin;
- UINT uAlign;
- };
- #endif
-#endif // wxUSE_UXTHEME
-
-#ifndef WM_THEMECHANGED
- #define WM_THEMECHANGED 0x031A
-#endif
-
-#ifndef ODS_NOACCEL
- #define ODS_NOACCEL 0x0100
-#endif
-
-#ifndef ODS_NOFOCUSRECT
- #define ODS_NOFOCUSRECT 0x0200
-#endif
-
-#ifndef DT_HIDEPREFIX
- #define DT_HIDEPREFIX 0x00100000
-#endif
-
// set the value for BCM_SETSHIELD (for the UAC shield) if it's not defined in
// the header
#ifndef BCM_SETSHIELD
#define BCM_SETSHIELD 0x160c
#endif
-#if wxUSE_UXTHEME
-extern wxWindowMSW *wxWindowBeingErased; // From src/msw/window.cpp
-#endif // wxUSE_UXTHEME
-
-// ----------------------------------------------------------------------------
-// button image data
-// ----------------------------------------------------------------------------
-
-// we use different data classes for owner drawn buttons and for themed XP ones
-
-class wxButtonImageData
-{
-public:
- wxButtonImageData() { }
- virtual ~wxButtonImageData() { }
-
- virtual wxBitmap GetBitmap(wxButton::State which) const = 0;
- virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which) = 0;
-
- virtual wxSize GetBitmapMargins() const = 0;
- virtual void SetBitmapMargins(wxCoord x, wxCoord y) = 0;
-
- virtual wxDirection GetBitmapPosition() const = 0;
- virtual void SetBitmapPosition(wxDirection dir) = 0;
-
-private:
- wxDECLARE_NO_COPY_CLASS(wxButtonImageData);
-};
-
-namespace
-{
-
-// the gap between button edge and the interior area used by Windows for the
-// standard buttons
-const int OD_BUTTON_MARGIN = 4;
-
-class wxODButtonImageData : public wxButtonImageData
-{
-public:
- wxODButtonImageData(wxButton *btn, const wxBitmap& bitmap)
- {
- SetBitmap(bitmap, wxButton::State_Normal);
- SetBitmap(bitmap.ConvertToDisabled(), wxButton::State_Disabled);
-
- m_dir = wxLEFT;
-
- // we use margins when we have both bitmap and text, but when we have
- // only the bitmap it should take up the entire button area
- if ( btn->ShowsLabel() )
- {
- m_margin.x = btn->GetCharWidth();
- m_margin.y = btn->GetCharHeight() / 2;
- }
- }
-
- virtual wxBitmap GetBitmap(wxButton::State which) const
- {
- return m_bitmaps[which];
- }
-
- virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which)
- {
- m_bitmaps[which] = bitmap;
- }
-
- virtual wxSize GetBitmapMargins() const
- {
- return m_margin;
- }
-
- virtual void SetBitmapMargins(wxCoord x, wxCoord y)
- {
- m_margin = wxSize(x, y);
- }
-
- virtual wxDirection GetBitmapPosition() const
- {
- return m_dir;
- }
-
- virtual void SetBitmapPosition(wxDirection dir)
- {
- m_dir = dir;
- }
-
-private:
- // just store the values passed to us to be able to retrieve them later
- // from the drawing code
- wxBitmap m_bitmaps[wxButton::State_Max];
- wxSize m_margin;
- wxDirection m_dir;
-
- wxDECLARE_NO_COPY_CLASS(wxODButtonImageData);
-};
-
-#if wxUSE_UXTHEME
-
-// somehow the margin is one pixel greater than the value returned by
-// GetThemeMargins() call
-const int XP_BUTTON_EXTRA_MARGIN = 1;
-
-class wxXPButtonImageData : public wxButtonImageData
-{
-public:
- // we must be constructed with the size of our images as we need to create
- // the image list
- wxXPButtonImageData(wxButton *btn, const wxBitmap& bitmap)
- : m_iml(bitmap.GetWidth(), bitmap.GetHeight(), true /* use mask */,
- wxButton::State_Max),
- m_hwndBtn(GetHwndOf(btn))
- {
- // initialize all bitmaps except for the disabled one to normal state
- for ( int n = 0; n < wxButton::State_Max; n++ )
- {
- m_iml.Add(n == wxButton::State_Disabled ? bitmap.ConvertToDisabled()
- : bitmap);
- }
-
- m_data.himl = GetHimagelistOf(&m_iml);
-
- // no margins by default
- m_data.margin.left =
- m_data.margin.right =
- m_data.margin.top =
- m_data.margin.bottom = 0;
-
- // use default alignment
- m_data.uAlign = BUTTON_IMAGELIST_ALIGN_LEFT;
-
- UpdateImageInfo();
- }
-
- virtual wxBitmap GetBitmap(wxButton::State which) const
- {
- return m_iml.GetBitmap(which);
- }
-
- virtual void SetBitmap(const wxBitmap& bitmap, wxButton::State which)
- {
- m_iml.Replace(which, bitmap);
-
- UpdateImageInfo();
- }
-
- virtual wxSize GetBitmapMargins() const
- {
- return wxSize(m_data.margin.left, m_data.margin.top);
- }
-
- virtual void SetBitmapMargins(wxCoord x, wxCoord y)
- {
- RECT& margin = m_data.margin;
- margin.left =
- margin.right = x;
- margin.top =
- margin.bottom = y;
-
- if ( !::SendMessage(m_hwndBtn, BCM_SETTEXTMARGIN, 0, (LPARAM)&margin) )
- {
- wxLogDebug("SendMessage(BCM_SETTEXTMARGIN) failed");
- }
- }
-
- virtual wxDirection GetBitmapPosition() const
- {
- switch ( m_data.uAlign )
- {
- default:
- wxFAIL_MSG( "invalid image alignment" );
- // fall through
-
- case BUTTON_IMAGELIST_ALIGN_LEFT:
- return wxLEFT;
-
- case BUTTON_IMAGELIST_ALIGN_RIGHT:
- return wxRIGHT;
-
- case BUTTON_IMAGELIST_ALIGN_TOP:
- return wxTOP;
-
- case BUTTON_IMAGELIST_ALIGN_BOTTOM:
- return wxBOTTOM;
- }
- }
-
- virtual void SetBitmapPosition(wxDirection dir)
- {
- UINT alignNew;
- switch ( dir )
- {
- default:
- wxFAIL_MSG( "invalid direction" );
- // fall through
-
- case wxLEFT:
- alignNew = BUTTON_IMAGELIST_ALIGN_LEFT;
- break;
-
- case wxRIGHT:
- alignNew = BUTTON_IMAGELIST_ALIGN_RIGHT;
- break;
-
- case wxTOP:
- alignNew = BUTTON_IMAGELIST_ALIGN_TOP;
- break;
-
- case wxBOTTOM:
- alignNew = BUTTON_IMAGELIST_ALIGN_BOTTOM;
- break;
- }
-
- if ( alignNew != m_data.uAlign )
- {
- m_data.uAlign = alignNew;
- UpdateImageInfo();
- }
- }
-
-private:
- void UpdateImageInfo()
- {
- if ( !::SendMessage(m_hwndBtn, BCM_SETIMAGELIST, 0, (LPARAM)&m_data) )
- {
- wxLogDebug("SendMessage(BCM_SETIMAGELIST) failed");
- }
- }
-
- // we store image list separately to be able to use convenient wxImageList
- // methods instead of working with raw HIMAGELIST
- wxImageList m_iml;
-
- // store the rest of the data in BCM_SETIMAGELIST-friendly form
- BUTTON_IMAGELIST m_data;
-
- // the button we're associated with
- const HWND m_hwndBtn;
-
-
- wxDECLARE_NO_COPY_CLASS(wxXPButtonImageData);
-};
-
-#endif // wxUSE_UXTHEME
-
-} // anonymous namespace
-
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
+BEGIN_EVENT_TABLE(wxButton, wxButtonBase)
+ EVT_CHAR_HOOK(wxButton::OnCharHook)
+END_EVENT_TABLE()
+
// ============================================================================
// implementation
// ============================================================================
-// ----------------------------------------------------------------------------
-// helper functions from wx/msw/private/button.h
-// ----------------------------------------------------------------------------
-
-void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label)
-{
- // update BS_MULTILINE style depending on the new label (resetting it
- // doesn't seem to do anything very useful but it shouldn't hurt and we do
- // have to set it whenever the label becomes multi line as otherwise it
- // wouldn't be shown correctly as we don't use BS_MULTILINE when creating
- // the control unless it already has new lines in its label)
- long styleOld = ::GetWindowLong(hwnd, GWL_STYLE),
- styleNew;
- if ( label.find(wxT('\n')) != wxString::npos )
- styleNew = styleOld | BS_MULTILINE;
- else
- styleNew = styleOld & ~BS_MULTILINE;
-
- if ( styleNew != styleOld )
- ::SetWindowLong(hwnd, GWL_STYLE, styleNew);
-}
-
-wxSize wxMSWButton::GetFittingSize(wxWindow *win,
- const wxSize& sizeLabel,
- int flags)
-{
- // FIXME: this is pure guesswork, need to retrieve the real button margins
- wxSize sizeBtn = sizeLabel;
-
- sizeBtn.x += 3*win->GetCharWidth();
- sizeBtn.y += win->GetCharHeight()/2;
-
- // account for the shield UAC icon if we have it
- if ( flags & Size_AuthNeeded )
- sizeBtn.x += wxSystemSettings::GetMetric(wxSYS_SMALLICON_X);
-
- return sizeBtn;
-}
-
-wxSize wxMSWButton::ComputeBestFittingSize(wxControl *btn, int flags)
-{
- wxClientDC dc(btn);
-
- wxSize sizeBtn;
- dc.GetMultiLineTextExtent(btn->GetLabelText(), &sizeBtn.x, &sizeBtn.y);
-
- return GetFittingSize(btn, sizeBtn, flags);
-}
-
-wxSize wxMSWButton::IncreaseToStdSizeAndCache(wxControl *btn, const wxSize& size)
-{
- wxSize sizeBtn(size);
-
- // All buttons have at least the standard height and, unless the user
- // explicitly wants them to be as small as possible and used wxBU_EXACTFIT
- // style to indicate this, of at least the standard width too.
- //
- // Notice that we really want to make all buttons equally high, otherwise
- // they look ugly and the existing code using wxBU_EXACTFIT only uses it to
- // control width and not height.
-
- // The 50x14 button size is documented in the "Recommended sizing and
- // spacing" section of MSDN layout article.
- //
- // Note that we intentionally don't use GetDefaultSize() here, because
- // it's inexact -- dialog units depend on this dialog's font.
- const wxSize sizeDef = btn->ConvertDialogToPixels(wxSize(50, 14));
- if ( !btn->HasFlag(wxBU_EXACTFIT) )
- {
- if ( sizeBtn.x < sizeDef.x )
- sizeBtn.x = sizeDef.x;
- }
- if ( sizeBtn.y < sizeDef.y )
- sizeBtn.y = sizeDef.y;
-
- btn->CacheBestSize(sizeBtn);
-
- return sizeBtn;
-}
-
// ----------------------------------------------------------------------------
// creation/destruction
// ----------------------------------------------------------------------------
{
UnsetTmpDefault();
}
-
- delete m_imageData;
-#if wxUSE_MARKUP
- delete m_markupText;
-#endif // wxUSE_MARKUP
}
// ----------------------------------------------------------------------------
return msStyle;
}
-void wxButton::SetLabel(const wxString& label)
-{
- wxMSWButton::UpdateMultilineStyle(GetHwnd(), label);
-
- wxButtonBase::SetLabel(label);
-
-#if wxUSE_MARKUP
- // If we have a plain text label, we shouldn't be using markup any longer.
- if ( m_markupText )
- {
- delete m_markupText;
- m_markupText = NULL;
-
- // Unfortunately we don't really know whether we can reset the button
- // to be non-owner-drawn or not: if we had made it owner-drawn just
- // because of a call to SetLabelMarkup(), we could, but not if there
- // were [also] calls to Set{Fore,Back}groundColour(). If it's really a
- // problem to have button remain owner-drawn forever just because it
- // had markup label once, we should record the reason for our current
- // owner-drawnness and check it here.
- }
-#endif // wxUSE_MARKUP
-}
-
-// ----------------------------------------------------------------------------
-// size management including autosizing
-// ----------------------------------------------------------------------------
-
-void wxButton::AdjustForBitmapSize(wxSize &size) const
-{
- wxCHECK_RET( m_imageData, wxT("shouldn't be called if no image") );
-
- // account for the bitmap size
- const wxSize sizeBmp = m_imageData->GetBitmap(State_Normal).GetSize();
- const wxDirection dirBmp = m_imageData->GetBitmapPosition();
- if ( dirBmp == wxLEFT || dirBmp == wxRIGHT )
- {
- size.x += sizeBmp.x;
- if ( sizeBmp.y > size.y )
- size.y = sizeBmp.y;
- }
- else // bitmap on top/below the text
- {
- size.y += sizeBmp.y;
- if ( sizeBmp.x > size.x )
- size.x = sizeBmp.x;
- }
-
- // account for the user-specified margins
- size += 2*m_imageData->GetBitmapMargins();
-
- // 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) )
- {
- int marginH = 0,
- marginV = 0;
-#if wxUSE_UXTHEME
- if ( wxUxThemeEngine::GetIfActive() )
- {
- wxUxThemeHandle theme(const_cast<wxButton *>(this), L"BUTTON");
-
- 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));
-
- marginH = margins.cxLeftWidth + margins.cxRightWidth
- + 2*XP_BUTTON_EXTRA_MARGIN;
- marginV = margins.cyTopHeight + margins.cyBottomHeight
- + 2*XP_BUTTON_EXTRA_MARGIN;
- }
- else
-#endif // wxUSE_UXTHEME
- {
- marginH =
- marginV = OD_BUTTON_MARGIN;
- }
-
- size.IncBy(marginH, marginV);
- }
-}
-
-wxSize wxButton::DoGetBestSize() const
-{
- wxButton * const self = const_cast<wxButton *>(this);
-
- wxSize size;
-
- // Account for the text part if we have it.
- if ( ShowsLabel() )
- {
- int flags = 0;
- if ( GetAuthNeeded() )
- flags |= wxMSWButton::Size_AuthNeeded;
-
-#if wxUSE_MARKUP
- if ( m_markupText )
- {
- wxClientDC dc(self);
- size = wxMSWButton::GetFittingSize(self,
- m_markupText->Measure(dc),
- flags);
- }
- else // Normal plain text (but possibly multiline) label.
-#endif // wxUSE_MARKUP
- {
- size = wxMSWButton::ComputeBestFittingSize(self, flags);
- }
- }
-
- if ( m_imageData )
- AdjustForBitmapSize(size);
-
- return wxMSWButton::IncreaseToStdSizeAndCache(self, size);
-}
-
/* static */
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.
-
+ In normal Windows programs there is no need to handle default button
+ manually because this is taken care by the system provided you use
+ WM_NEXTDLGCTL and not just SetFocus() to switch focus betweeh the controls
+ (see http://blogs.msdn.com/oldnewthing/archive/2004/08/02/205624.aspx for
+ the full explanation why just calling SetFocus() is not enough).
+
+ However this only works if the window is a dialog, i.e. uses DefDlgProc(),
+ but not with plain windows using DefWindowProc() and we do want to have
+ default buttons inside frames as well, so we're forced to reimplement all
+ this logic ourselves. It would be great to avoid having to do this but using
+ DefDlgProc() for all the windows would almost certainly result in more
+ problems, we'd need to carefully filter messages and pass some of them to
+ DefWindowProc() and some of them to DefDlgProc() which looks dangerous (what
+ if the handling of some message changes in some Windows version?), so doing
+ this ourselves is probably a lesser evil.
+
+ Read the rest to learn everything you ever wanted to know about the default
+ buttons but were afraid to ask.
- "Everything you ever wanted to know about the default buttons" or "Why do we
- have to do all this?"
In MSW the default button should be activated when the user presses Enter
and the current control doesn't process Enter itself somehow. This is
to it. When the button loses focus, it unsets the temporary default and so
the default item will be the permanent default -- that is the default button
if any had been set or none otherwise, which is just what we want.
-
- NB: all this is quite complicated by now and the worst is that normally
- it shouldn't be necessary at all as for the normal Windows programs
- DefWindowProc() and IsDialogMessage() take care of all this
- automatically -- however in wxWidgets programs this doesn't work for
- nested hierarchies (i.e. a notebook inside a notebook) for unknown
- reason and so we have to reproduce all this code ourselves. It would be
- very nice if we could avoid doing it.
*/
// set this button as the (permanently) default one in its panel
// set this button as being currently default
void wxButton::SetTmpDefault()
{
- wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(this);
if ( !tlw )
return;
// unset this button as currently default, it may still stay permanent default
void wxButton::UnsetTmpDefault()
{
- wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(this);
if ( !tlw )
return;
// event/message handlers
// ----------------------------------------------------------------------------
+void wxButton::OnCharHook(wxKeyEvent& event)
+{
+ // We want to ensure that the button always processes Enter key events
+ // itself, even if it's inside some control that normally takes over them
+ // (this happens when the button is part of an in-place editor control for
+ // example).
+ if ( event.GetKeyCode() == WXK_RETURN )
+ {
+ // We should ensure that subsequent key events are still generated even
+ // if we did handle EVT_CHAR_HOOK (normally this would suppress their
+ // generation).
+ event.DoAllowNextEvent();
+ }
+ else
+ {
+ event.Skip();
+ }
+}
+
bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
bool processed = false;
{
UnsetTmpDefault();
}
- else if ( nMsg == WM_LBUTTONDBLCLK )
- {
- // emulate a click event to force an owner-drawn button to change its
- // appearance - without this, it won't do it
- (void)wxControl::MSWWindowProc(WM_LBUTTONDOWN, wParam, lParam);
-
- // and continue with processing the message normally as well
- }
-#if wxUSE_UXTHEME
- else if ( nMsg == WM_THEMECHANGED )
- {
- // need to recalculate the best size here
- // as the theme size might have changed
- InvalidateBestSize();
- }
-#endif // wxUSE_UXTHEME
- // must use m_mouseInWindow here instead of IsMouseInWindow()
- // since we need to know the first time the mouse enters the window
- // and IsMouseInWindow() would return true in this case
- else if ( (nMsg == WM_MOUSEMOVE && !m_mouseInWindow) ||
- nMsg == WM_MOUSELEAVE )
- {
- if (
- IsEnabled() &&
- (
-#if wxUSE_UXTHEME
- wxUxThemeEngine::GetIfActive() ||
-#endif // wxUSE_UXTHEME
- (m_imageData && m_imageData->GetBitmap(State_Current).IsOk())
- )
- )
- {
- Refresh();
- }
- }
// let the base class do all real processing
- return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+ return wxAnyButton::MSWWindowProc(nMsg, wParam, lParam);
}
// ----------------------------------------------------------------------------
}
}
-// ----------------------------------------------------------------------------
-// button images
-// ----------------------------------------------------------------------------
-
-wxBitmap wxButton::DoGetBitmap(State which) const
-{
- return m_imageData ? m_imageData->GetBitmap(which) : wxBitmap();
-}
-
-void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which)
-{
-#if wxUSE_UXTHEME
- wxXPButtonImageData *oldData = NULL;
-#endif // wxUSE_UXTHEME
-
- // Check if we already had bitmaps of different size.
- if ( m_imageData &&
- bitmap.GetSize() != m_imageData->GetBitmap(State_Normal).GetSize() )
- {
- wxASSERT_MSG( which == State_Normal,
- "Must set normal bitmap with the new size first" );
-
-#if wxUSE_UXTHEME
- if ( ShowsLabel() && wxUxThemeEngine::GetIfActive() )
- {
- // We can't change the size of the images stored in wxImageList
- // in wxXPButtonImageData::m_iml so force recreating it below but
- // keep the current data to copy its values into the new one.
- oldData = static_cast<wxXPButtonImageData *>(m_imageData);
- m_imageData = NULL;
- }
-#endif // wxUSE_UXTHEME
- //else: wxODButtonImageData doesn't require anything special
- }
-
- // allocate the image data when the first bitmap is set
- if ( !m_imageData )
- {
-#if wxUSE_UXTHEME
- // using image list doesn't work correctly if we don't have any label
- // (even if we use BUTTON_IMAGELIST_ALIGN_CENTER alignment and
- // BS_BITMAP style), at least under Windows 2003 so use owner drawn
- // strategy for bitmap-only buttons
- if ( ShowsLabel() && wxUxThemeEngine::GetIfActive() )
- {
- m_imageData = new wxXPButtonImageData(this, bitmap);
-
- if ( oldData )
- {
- // Preserve the old values in case the user changed them.
- m_imageData->SetBitmapPosition(oldData->GetBitmapPosition());
-
- const wxSize oldMargins = oldData->GetBitmapMargins();
- m_imageData->SetBitmapMargins(oldMargins.x, oldMargins.y);
-
- // No need to preserve the bitmaps though as they were of wrong
- // size anyhow.
-
- delete oldData;
- }
- }
- else
-#endif // wxUSE_UXTHEME
- {
- m_imageData = new wxODButtonImageData(this, bitmap);
- MakeOwnerDrawn();
- }
- }
- 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();
-}
-
-wxSize wxButton::DoGetBitmapMargins() const
-{
- return m_imageData ? m_imageData->GetBitmapMargins() : wxSize(0, 0);
-}
-
-void wxButton::DoSetBitmapMargins(wxCoord x, wxCoord y)
-{
- wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
-
- m_imageData->SetBitmapMargins(x, y);
- InvalidateBestSize();
-}
-
-void wxButton::DoSetBitmapPosition(wxDirection dir)
-{
- wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
-
- m_imageData->SetBitmapPosition(dir);
- InvalidateBestSize();
-}
-
-// ----------------------------------------------------------------------------
-// markup support
-// ----------------------------------------------------------------------------
-
-#if wxUSE_MARKUP
-
-bool wxButton::DoSetLabelMarkup(const wxString& markup)
-{
- if ( !wxButtonBase::DoSetLabelMarkup(markup) )
- return false;
-
- if ( !m_markupText )
- {
- m_markupText = new wxMarkupText(markup);
- MakeOwnerDrawn();
- }
- else
- {
- // We are already owner-drawn so just update the text.
- m_markupText->SetMarkup(markup);
- }
-
- Refresh();
-
- return true;
-}
-
-#endif // wxUSE_MARKUP
-
-// ----------------------------------------------------------------------------
-// owner-drawn buttons support
-// ----------------------------------------------------------------------------
-
-// drawing helpers
-namespace
-{
-
-// return the button state using both the ODS_XXX flags specified in state
-// parameter and the current button state
-wxButton::State GetButtonState(wxButton *btn, UINT state)
-{
- if ( state & ODS_DISABLED )
- return wxButton::State_Disabled;
-
- if ( state & ODS_SELECTED )
- return wxButton::State_Pressed;
-
- if ( btn->HasCapture() || btn->IsMouseInWindow() )
- return wxButton::State_Current;
-
- if ( state & ODS_FOCUS )
- return wxButton::State_Focused;
-
- return wxButton::State_Normal;
-}
-
-void DrawButtonText(HDC hdc,
- RECT *pRect,
- wxButton *btn,
- int flags)
-{
- const wxString text = btn->GetLabel();
-
- if ( text.find(wxT('\n')) != wxString::npos )
- {
- // draw multiline label
-
- // center text horizontally in any case
- flags |= DT_CENTER;
-
- // first we need to compute its bounding rect
- RECT rc;
- ::CopyRect(&rc, pRect);
- ::DrawText(hdc, text.wx_str(), text.length(), &rc,
- DT_CENTER | DT_CALCRECT);
-
- // now center this rect inside the entire button area
- const LONG w = rc.right - rc.left;
- const LONG h = rc.bottom - rc.top;
- rc.left = (pRect->right - pRect->left)/2 - w/2;
- rc.right = rc.left+w;
- rc.top = (pRect->bottom - pRect->top)/2 - h/2;
- rc.bottom = rc.top+h;
-
- ::DrawText(hdc, text.wx_str(), text.length(), &rc, flags);
- }
- else // single line label
- {
- // translate wx button flags to alignment flags for DrawText()
- if ( btn->HasFlag(wxBU_RIGHT) )
- {
- flags |= DT_RIGHT;
- }
- else if ( !btn->HasFlag(wxBU_LEFT) )
- {
- flags |= DT_CENTER;
- }
- //else: DT_LEFT is the default anyhow (and its value is 0 too)
-
- if ( btn->HasFlag(wxBU_BOTTOM) )
- {
- flags |= DT_BOTTOM;
- }
- else if ( !btn->HasFlag(wxBU_TOP) )
- {
- flags |= DT_VCENTER;
- }
- //else: as above, DT_TOP is the default
-
- // notice that we must have DT_SINGLELINE for vertical alignment flags
- // to work
- ::DrawText(hdc, text.wx_str(), text.length(), pRect,
- flags | DT_SINGLELINE );
- }
-}
-
-void DrawRect(HDC hdc, const RECT& r)
-{
- wxDrawLine(hdc, r.left, r.top, r.right, r.top);
- wxDrawLine(hdc, r.right, r.top, r.right, r.bottom);
- wxDrawLine(hdc, r.right, r.bottom, r.left, r.bottom);
- wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
-}
-
-/*
- The button frame looks like this normally:
-
- WWWWWWWWWWWWWWWWWWB
- WHHHHHHHHHHHHHHHHGB W = white (HILIGHT)
- WH GB H = light grey (LIGHT)
- WH GB G = dark grey (SHADOW)
- WH GB B = black (DKSHADOW)
- WH GB
- WGGGGGGGGGGGGGGGGGB
- BBBBBBBBBBBBBBBBBBB
-
- When the button is selected, the button becomes like this (the total button
- size doesn't change):
-
- BBBBBBBBBBBBBBBBBBB
- BWWWWWWWWWWWWWWWWBB
- BWHHHHHHHHHHHHHHGBB
- BWH GBB
- BWH GBB
- BWGGGGGGGGGGGGGGGBB
- BBBBBBBBBBBBBBBBBBB
- BBBBBBBBBBBBBBBBBBB
-
- When the button is pushed (while selected) it is like:
-
- BBBBBBBBBBBBBBBBBBB
- BGGGGGGGGGGGGGGGGGB
- BG GB
- BG GB
- BG GB
- BG GB
- BGGGGGGGGGGGGGGGGGB
- BBBBBBBBBBBBBBBBBBB
-*/
-void DrawButtonFrame(HDC hdc, RECT& rectBtn,
- bool selected, bool pushed)
-{
- RECT r;
- CopyRect(&r, &rectBtn);
-
- AutoHPEN hpenBlack(GetSysColor(COLOR_3DDKSHADOW)),
- hpenGrey(GetSysColor(COLOR_3DSHADOW)),
- hpenLightGr(GetSysColor(COLOR_3DLIGHT)),
- hpenWhite(GetSysColor(COLOR_3DHILIGHT));
-
- SelectInHDC selectPen(hdc, hpenBlack);
-
- r.right--;
- r.bottom--;
-
- if ( pushed )
- {
- DrawRect(hdc, r);
-
- (void)SelectObject(hdc, hpenGrey);
- ::InflateRect(&r, -1, -1);
-
- DrawRect(hdc, r);
- }
- else // !pushed
- {
- if ( selected )
- {
- DrawRect(hdc, r);
-
- ::InflateRect(&r, -1, -1);
- }
-
- wxDrawLine(hdc, r.left, r.bottom, r.right, r.bottom);
- wxDrawLine(hdc, r.right, r.bottom, r.right, r.top - 1);
-
- (void)SelectObject(hdc, hpenWhite);
- wxDrawLine(hdc, r.left, r.bottom - 1, r.left, r.top);
- wxDrawLine(hdc, r.left, r.top, r.right, r.top);
-
- (void)SelectObject(hdc, hpenLightGr);
- wxDrawLine(hdc, r.left + 1, r.bottom - 2, r.left + 1, r.top + 1);
- wxDrawLine(hdc, r.left + 1, r.top + 1, r.right - 1, r.top + 1);
-
- (void)SelectObject(hdc, hpenGrey);
- wxDrawLine(hdc, r.left + 1, r.bottom - 1, r.right - 1, r.bottom - 1);
- wxDrawLine(hdc, r.right - 1, r.bottom - 1, r.right - 1, r.top);
- }
-
- InflateRect(&rectBtn, -OD_BUTTON_MARGIN, -OD_BUTTON_MARGIN);
-}
-
-#if wxUSE_UXTHEME
-void DrawXPBackground(wxButton *button, HDC hdc, RECT& rectBtn, UINT state)
-{
- wxUxThemeHandle theme(button, L"BUTTON");
-
- // this array is indexed by wxButton::State values and so must be kept in
- // sync with it
- static const int uxStates[] =
- {
- PBS_NORMAL, PBS_HOT, PBS_PRESSED, PBS_DISABLED, PBS_DEFAULTED
- };
-
- int iState = uxStates[GetButtonState(button, state)];
-
- wxUxThemeEngine * const engine = wxUxThemeEngine::Get();
-
- // draw parent background if needed
- if ( engine->IsThemeBackgroundPartiallyTransparent
- (
- theme,
- BP_PUSHBUTTON,
- iState
- ) )
- {
- // Set this button as the one whose background is being erased: this
- // allows our WM_ERASEBKGND handler used by DrawThemeParentBackground()
- // to correctly align the background brush with this window instead of
- // the parent window to which WM_ERASEBKGND is sent. Notice that this
- // doesn't work with custom user-defined EVT_ERASE_BACKGROUND handlers
- // as they won't be aligned but unfortunately all the attempts to fix
- // it by shifting DC origin before calling DrawThemeParentBackground()
- // failed to work so we at least do this, even though this is far from
- // being the perfect solution.
- wxWindowBeingErased = button;
-
- engine->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn);
-
- wxWindowBeingErased = NULL;
- }
-
- // draw background
- engine->DrawThemeBackground(theme, hdc, BP_PUSHBUTTON, iState,
- &rectBtn, NULL);
-
- // calculate content area margins
- MARGINS margins;
- engine->GetThemeMargins(theme, hdc, BP_PUSHBUTTON, iState,
- TMT_CONTENTMARGINS, &rectBtn, &margins);
- ::InflateRect(&rectBtn, -margins.cxLeftWidth, -margins.cyTopHeight);
- ::InflateRect(&rectBtn, -XP_BUTTON_EXTRA_MARGIN, -XP_BUTTON_EXTRA_MARGIN);
-
- if ( button->UseBgCol() )
- {
- COLORREF colBg = wxColourToRGB(button->GetBackgroundColour());
- AutoHBRUSH hbrushBackground(colBg);
-
- // don't overwrite the focus rect
- RECT rectClient;
- ::CopyRect(&rectClient, &rectBtn);
- ::InflateRect(&rectClient, -1, -1);
- FillRect(hdc, &rectClient, hbrushBackground);
- }
-}
-#endif // wxUSE_UXTHEME
-
-} // anonymous namespace
-
-// ----------------------------------------------------------------------------
-// owner drawn buttons support
-// ----------------------------------------------------------------------------
-
-void wxButton::MakeOwnerDrawn()
-{
- long style = GetWindowLong(GetHwnd(), GWL_STYLE);
- if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
- {
- // make it so
- style |= BS_OWNERDRAW;
- SetWindowLong(GetHwnd(), GWL_STYLE, style);
- }
-}
-
-bool wxButton::SetBackgroundColour(const wxColour &colour)
-{
- if ( !wxControl::SetBackgroundColour(colour) )
- {
- // nothing to do
- return false;
- }
-
- MakeOwnerDrawn();
-
- Refresh();
-
- return true;
-}
-
-bool wxButton::SetForegroundColour(const wxColour &colour)
-{
- if ( !wxControl::SetForegroundColour(colour) )
- {
- // nothing to do
- return false;
- }
-
- MakeOwnerDrawn();
-
- Refresh();
-
- return true;
-}
-
-bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
-{
- LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
- HDC hdc = lpDIS->hDC;
-
- UINT state = lpDIS->itemState;
- bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
-
- RECT rectBtn;
- CopyRect(&rectBtn, &lpDIS->rcItem);
-
- // draw the button background
- if ( !HasFlag(wxBORDER_NONE) )
- {
-#if wxUSE_UXTHEME
- if ( wxUxThemeEngine::GetIfActive() )
- {
- DrawXPBackground(this, hdc, rectBtn, state);
- }
- else
-#endif // wxUSE_UXTHEME
- {
- COLORREF colBg = wxColourToRGB(GetBackgroundColour());
-
- // 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 )
- {
- selected = tlw->GetDefaultItem() == this;
- }
- }
-
- DrawButtonFrame(hdc, rectBtn, selected, pushed);
- }
-
- // draw the focus rectangle if we need it
- if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
- {
- DrawFocusRect(hdc, &rectBtn);
-
-#if wxUSE_UXTHEME
- if ( !wxUxThemeEngine::GetIfActive() )
-#endif // wxUSE_UXTHEME
- {
- if ( pushed )
- {
- // the label is shifted by 1 pixel to create "pushed" effect
- OffsetRect(&rectBtn, 1, 1);
- }
- }
- }
- }
-
-
- // draw the image, if any
- if ( m_imageData )
- {
- wxBitmap bmp = m_imageData->GetBitmap(GetButtonState(this, state));
- if ( !bmp.IsOk() )
- bmp = m_imageData->GetBitmap(State_Normal);
-
- const wxSize sizeBmp = bmp.GetSize();
- const wxSize margin = m_imageData->GetBitmapMargins();
- const wxSize sizeBmpWithMargins(sizeBmp + 2*margin);
- wxRect rectButton(wxRectFromRECT(rectBtn));
-
- // for simplicity, we start with centred rectangle and then move it to
- // the appropriate edge
- wxRect rectBitmap = wxRect(sizeBmp).CentreIn(rectButton);
-
- // move bitmap only if we have a label, otherwise keep it centered
- if ( ShowsLabel() )
- {
- switch ( m_imageData->GetBitmapPosition() )
- {
- default:
- wxFAIL_MSG( "invalid direction" );
- // fall through
-
- case wxLEFT:
- rectBitmap.x = rectButton.x + margin.x;
- rectButton.x += sizeBmpWithMargins.x;
- rectButton.width -= sizeBmpWithMargins.x;
- break;
-
- case wxRIGHT:
- rectBitmap.x = rectButton.GetRight() - sizeBmp.x - margin.x;
- rectButton.width -= sizeBmpWithMargins.x;
- break;
-
- case wxTOP:
- rectBitmap.y = rectButton.y + margin.y;
- rectButton.y += sizeBmpWithMargins.y;
- rectButton.height -= sizeBmpWithMargins.y;
- break;
-
- case wxBOTTOM:
- rectBitmap.y = rectButton.GetBottom() - sizeBmp.y - margin.y;
- rectButton.height -= sizeBmpWithMargins.y;
- break;
- }
- }
-
- wxDCTemp dst((WXHDC)hdc);
- dst.DrawBitmap(bmp, rectBitmap.GetPosition(), true);
-
- wxCopyRectToRECT(rectButton, rectBtn);
- }
-
-
- // finally draw the label
- if ( ShowsLabel() )
- {
- COLORREF colFg = state & ODS_DISABLED
- ? ::GetSysColor(COLOR_GRAYTEXT)
- : wxColourToRGB(GetForegroundColour());
-
- wxTextColoursChanger changeFg(hdc, colFg, CLR_INVALID);
- wxBkModeChanger changeBkMode(hdc, wxBRUSHSTYLE_TRANSPARENT);
-
-#if wxUSE_MARKUP
- if ( m_markupText )
- {
- wxDCTemp dc((WXHDC)hdc);
- dc.SetTextForeground(wxColour(colFg));
- dc.SetFont(GetFont());
-
- m_markupText->Render(dc, wxRectFromRECT(rectBtn),
- state & ODS_NOACCEL
- ? wxMarkupText::Render_Default
- : wxMarkupText::Render_ShowAccels);
- }
- else // Plain text label
-#endif // wxUSE_MARKUP
- {
- // notice that DT_HIDEPREFIX doesn't work on old (pre-Windows 2000)
- // systems but by happy coincidence ODS_NOACCEL is not used under
- // them neither so DT_HIDEPREFIX should never be used there
- DrawButtonText(hdc, &rectBtn, this,
- state & ODS_NOACCEL ? DT_HIDEPREFIX : 0);
- }
- }
-
- return true;
-}
-
#endif // wxUSE_BUTTON
projects / wxWidgets.git / blobdiff