/////////////////////////////////////////////////////////////////////////////
-// Name: msw/button.cpp
+// Name: src/msw/button.cpp
// Purpose: wxButton
// Author: Julian Smart
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "button.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_BUTTON
+#include "wx/button.h"
+
#ifndef WX_PRECOMP
#include "wx/app.h"
- #include "wx/button.h"
#include "wx/brush.h"
#include "wx/panel.h"
#include "wx/bmpbuttn.h"
#include "wx/settings.h"
#include "wx/dcscreen.h"
+ #include "wx/dcclient.h"
+ #include "wx/toplevel.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"
+
+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
+
+// ----------------------------------------------------------------------------
+// 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);
+
+ 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 to normal state
+ for ( int n = 0; n < wxButton::State_Max; n++ )
+ {
+ m_iml.Add(bitmap);
+ }
+
+ m_data.himl = GetHimagelistOf(&m_iml);
+
+ // use default margins
+ m_data.margin.left =
+ m_data.margin.right = btn->GetCharWidth();
+ m_data.margin.top =
+ m_data.margin.bottom = btn->GetCharHeight() / 2;
+
+ // and 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
IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
#endif
-// this macro tries to adjust the default button height to a reasonable value
-// using the char height as the base
-#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
-
// ============================================================================
// 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)
+{
+ // FIXME: this is pure guesswork, need to retrieve the real button margins
+ wxSize sizeBtn = sizeLabel;
+
+ sizeBtn.x += 3*win->GetCharWidth();
+ sizeBtn.y = 11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(sizeLabel.y)/10;
+
+ return sizeBtn;
+}
+
+wxSize wxMSWButton::ComputeBestSize(wxControl *btn)
+{
+ wxClientDC dc(btn);
+
+ wxSize sizeBtn;
+ dc.GetMultiLineTextExtent(btn->GetLabelText(), &sizeBtn.x, &sizeBtn.y);
+
+ sizeBtn = GetFittingSize(btn, sizeBtn);
+
+ // all buttons have at least the standard size unless the user explicitly
+ // wants them to be of smaller size and used wxBU_EXACTFIT style when
+ // creating the button
+ if ( !btn->HasFlag(wxBU_EXACTFIT) )
+ {
+ wxSize sizeDef = wxButton::GetDefaultSize();
+ 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
// ----------------------------------------------------------------------------
{
wxString label(lbl);
if (label.empty() && wxIsStockID(id))
- label = wxGetStockLabel(id);
-
+ {
+ // On Windows, some buttons aren't supposed to have mnemonics
+ label = wxGetStockLabel
+ (
+ id,
+ id == wxID_OK || id == wxID_CANCEL || id == wxID_CLOSE
+ ? wxSTOCK_NOFLAGS
+ : wxSTOCK_WITH_MNEMONIC
+ );
+ }
+
if ( !CreateControl(parent, id, pos, size, style, validator, name) )
return false;
WXDWORD exstyle;
WXDWORD msStyle = MSWGetStyle(style, &exstyle);
-#ifdef __WIN32__
// if the label contains several lines we must explicitly tell the button
// about it or it wouldn't draw it correctly ("\n"s would just appear as
// black boxes)
//
// NB: we do it here and not in MSWGetStyle() because we need the label
- // value and m_label is not set yet when MSWGetStyle() is called;
- // besides changing BS_MULTILINE during run-time is pointless anyhow
- if ( label.find(_T('\n')) != wxString::npos )
- {
- msStyle |= BS_MULTILINE;
- }
-#endif // __WIN32__
+ // 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()
{
+ wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+ if ( tlw && tlw->GetTmpDefaultItem() == this )
+ {
+ UnsetTmpDefault();
+ }
+
+ delete m_imageData;
}
// ----------------------------------------------------------------------------
// the bottom
msStyle |= WS_CLIPSIBLINGS;
-#ifdef __WIN32__
// don't use "else if" here: weird as it is, but you may combine wxBU_LEFT
// and wxBU_RIGHT to get BS_CENTER!
if ( style & wxBU_LEFT )
if ( style & wxNO_BORDER )
msStyle |= BS_FLAT;
#endif // __WXWINCE__
-#endif // __WIN32__
return msStyle;
}
+void wxButton::SetLabel(const wxString& label)
+{
+ wxMSWButton::UpdateMultilineStyle(GetHwnd(), label);
+
+ wxButtonBase::SetLabel(label);
+}
+
// ----------------------------------------------------------------------------
// size management including autosizing
// ----------------------------------------------------------------------------
wxSize wxButton::DoGetBestSize() const
{
- int wBtn;
- GetTextExtent(wxGetWindowText(GetHWND()), &wBtn, NULL);
+ wxSize size;
- int wChar, hChar;
- wxGetCharSize(GetHWND(), &wChar, &hChar, GetFont());
+ // 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<wxButton *>(this));
+ }
- // add a margin -- the button is wider than just its label
- wBtn += 3*wChar;
+ if ( m_imageData )
+ {
+ // 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;
+ }
- // the button height is proportional to the height of the font used
- int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);
+ // account for the user-specified margins
+ size += 2*m_imageData->GetBitmapMargins();
- // all buttons have at least the standard size unless the user explicitly
- // wants them to be of smaller size and used wxBU_EXACTFIT style when
- // creating the button
- if ( !HasFlag(wxBU_EXACTFIT) )
- {
- wxSize sz = GetDefaultSize();
- if (wBtn > sz.x)
- sz.x = wBtn;
- if (hBtn > sz.y)
- sz.y = hBtn;
+ // 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);
+ }
- return sz;
+ CacheBestSize(size);
}
- return wxSize(wBtn, hBtn);
+ return size;
}
/* static */
// ----------------------------------------------------------------------------
/*
+ 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?"
*/
// set this button as the (permanently) default one in its panel
-void wxButton::SetDefault()
+wxWindow *wxButton::SetDefault()
{
- wxWindow *parent = GetParent();
-
- wxCHECK_RET( parent, _T("button without parent?") );
-
// set this one as the default button both for wxWidgets ...
- wxWindow *winOldDefault = parent->SetDefaultItem(this);
+ wxWindow *winOldDefault = wxButtonBase::SetDefault();
// ... and Windows
SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
SetDefaultStyle(this, true);
+
+ return winOldDefault;
+}
+
+// return the top level parent window if it's not being deleted yet, otherwise
+// return NULL
+static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
+{
+ for ( ;; )
+ {
+ // IsTopLevel() will return false for a wxTLW being deleted, so we also
+ // need the parent test for this case
+ wxWindow * const parent = win->GetParent();
+ if ( !parent || win->IsTopLevel() )
+ {
+ if ( win->IsBeingDeleted() )
+ return NULL;
+
+ break;
+ }
+
+ win = parent;
+ }
+
+ wxASSERT_MSG( win, wxT("button without top level parent?") );
+
+ wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow);
+ wxASSERT_MSG( tlw, wxT("logic error in GetTLWParentIfNotBeingDeleted()") );
+
+ return tlw;
}
// set this button as being currently default
void wxButton::SetTmpDefault()
{
- wxWindow *parent = GetParent();
-
- wxCHECK_RET( parent, _T("button without parent?") );
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ if ( !tlw )
+ return;
- wxWindow *winOldDefault = parent->GetDefaultItem();
- parent->SetTmpDefaultItem(this);
+ wxWindow *winOldDefault = tlw->GetDefaultItem();
+ tlw->SetTmpDefaultItem(this);
SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
SetDefaultStyle(this, true);
// unset this button as currently default, it may still stay permanent default
void wxButton::UnsetTmpDefault()
{
- wxWindow *parent = GetParent();
-
- wxCHECK_RET( parent, _T("button without parent?") );
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ if ( !tlw )
+ return;
- parent->SetTmpDefaultItem(NULL);
+ tlw->SetTmpDefaultItem(NULL);
- wxWindow *winOldDefault = parent->GetDefaultItem();
+ wxWindow *winOldDefault = tlw->GetDefaultItem();
SetDefaultStyle(this, false);
SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), true);
if ( !wxTheApp->IsActive() )
return;
- // look for a panel-like window
- wxWindow *win = btn->GetParent();
- while ( win && !win->HasFlag(wxTAB_TRAVERSAL) )
- win = win->GetParent();
+ wxWindow * const tlw = wxGetTopLevelParent(btn);
+ wxCHECK_RET( tlw, wxT("button without top level window?") );
- if ( win )
- {
- ::SendMessage(GetHwndOf(win), DM_SETDEFID, btn->GetId(), 0L);
+ ::SendMessage(GetHwndOf(tlw), DM_SETDEFID, btn->GetId(), 0L);
- // sending DM_SETDEFID also changes the button style to
- // BS_DEFPUSHBUTTON so there is nothing more to do
- }
+ // sending DM_SETDEFID also changes the button style to
+ // BS_DEFPUSHBUTTON so there is nothing more to do
}
// then also change the style as needed
// 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);
}
// ----------------------------------------------------------------------------
-// owner-drawn buttons support
+// button images
// ----------------------------------------------------------------------------
-#ifdef __WIN32__
-
-// drawing helpers
+wxBitmap wxButton::DoGetBitmap(State which) const
+{
+ return m_imageData ? m_imageData->GetBitmap(which) : wxBitmap();
+}
-static void DrawButtonText(HDC hdc,
- RECT *pRect,
- const wxString& text,
- COLORREF col)
+void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which)
{
- COLORREF colOld = SetTextColor(hdc, col);
- int modeOld = SetBkMode(hdc, TRANSPARENT);
+ // 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);
+ }
+ else
+#endif // wxUSE_UXTHEME
+ {
+ m_imageData = new wxODButtonImageData(this, bitmap);
+ MakeOwnerDrawn();
+ }
+ }
+ else
+ {
+ m_imageData->SetBitmap(bitmap, which);
+ }
- // Note: we must have DT_SINGLELINE for DT_VCENTER to work.
- ::DrawText(hdc, text, text.length(), pRect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
+ // 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();
- SetBkMode(hdc, modeOld);
- SetTextColor(hdc, colOld);
+ Refresh();
}
-static void DrawRect(HDC hdc, const RECT& r)
+wxSize wxButton::DoGetBitmapMargins() const
{
- 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);
+ return m_imageData ? m_imageData->GetBitmapMargins() : wxSize(0, 0);
}
-void wxButton::MakeOwnerDrawn()
+void wxButton::DoSetBitmapMargins(wxCoord x, wxCoord y)
{
- long style = GetWindowLong(GetHwnd(), GWL_STYLE);
- if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
- {
- // make it so
- style |= BS_OWNERDRAW;
- SetWindowLong(GetHwnd(), GWL_STYLE, style);
- }
+ wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
+
+ m_imageData->SetBitmapMargins(x, y);
}
-bool wxButton::SetBackgroundColour(const wxColour &colour)
+void wxButton::DoSetBitmapPosition(wxDirection dir)
{
- if ( !wxControl::SetBackgroundColour(colour) )
- {
- // nothing to do
- return false;
- }
+ wxCHECK_RET( m_imageData, "SetBitmap() must be called first" );
- MakeOwnerDrawn();
+ m_imageData->SetBitmapPosition(dir);
+}
- Refresh();
+// ----------------------------------------------------------------------------
+// owner-drawn buttons support
+// ----------------------------------------------------------------------------
- return true;
+// 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;
}
-bool wxButton::SetForegroundColour(const wxColour &colour)
+void DrawButtonText(HDC hdc,
+ RECT *pRect,
+ const wxString& text,
+ COLORREF col,
+ int flags)
{
- if ( !wxControl::SetForegroundColour(colour) )
- {
- // nothing to do
- return false;
- }
+ wxTextColoursChanger changeFg(hdc, col, CLR_INVALID);
+ wxBkModeChanger changeBkMode(hdc, wxBRUSHSTYLE_TRANSPARENT);
- MakeOwnerDrawn();
+ // center text horizontally in any case
+ flags |= DT_CENTER;
- Refresh();
+ if ( text.find(wxT('\n')) != wxString::npos )
+ {
+ // draw multiline label
+
+ // 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
+ {
+ // centre text vertically too (notice that we must have DT_SINGLELINE
+ // for DT_VCENTER to work)
+ ::DrawText(hdc, text.wx_str(), text.length(), pRect,
+ flags | DT_SINGLELINE | DT_VCENTER);
+ }
+}
- return true;
+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);
}
/*
BGGGGGGGGGGGGGGGGGB
BBBBBBBBBBBBBBBBBBB
*/
-
-static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
- bool selected, bool pushed)
+void DrawButtonFrame(HDC hdc, RECT& rectBtn,
+ bool selected, bool pushed)
{
RECT r;
CopyRect(&r, &rectBtn);
- HPEN hpenBlack = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)),
- hpenGrey = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)),
- hpenLightGr = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DLIGHT)),
- hpenWhite = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT));
+ AutoHPEN hpenBlack(GetSysColor(COLOR_3DDKSHADOW)),
+ hpenGrey(GetSysColor(COLOR_3DSHADOW)),
+ hpenLightGr(GetSysColor(COLOR_3DLIGHT)),
+ hpenWhite(GetSysColor(COLOR_3DHILIGHT));
- HPEN hpenOld = (HPEN)SelectObject(hdc, hpenBlack);
+ SelectInHDC selectPen(hdc, hpenBlack);
r.right--;
r.bottom--;
wxDrawLine(hdc, r.right - 1, r.bottom - 1, r.right - 1, r.top);
}
- (void)SelectObject(hdc, hpenOld);
- DeleteObject(hpenWhite);
- DeleteObject(hpenLightGr);
- DeleteObject(hpenGrey);
- DeleteObject(hpenBlack);
+ InflateRect(&rectBtn, -OD_BUTTON_MARGIN, -OD_BUTTON_MARGIN);
}
-bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
+#if wxUSE_UXTHEME
+void DrawXPBackground(wxButton *button, HDC hdc, RECT& rectBtn, UINT state)
{
- LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
+ wxUxThemeHandle theme(button, L"BUTTON");
- RECT rectBtn;
- CopyRect(&rectBtn, &lpDIS->rcItem);
+ // 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
+ ) )
+ {
+ engine->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn);
+ }
+
+ // 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;
+ }
- COLORREF colBg = wxColourToRGB(GetBackgroundColour()),
- colFg = wxColourToRGB(GetForegroundColour());
+ MakeOwnerDrawn();
+
+ Refresh();
+
+ return true;
+}
+bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
+{
+ LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
HDC hdc = lpDIS->hDC;
- UINT state = lpDIS->itemState;
- // first, draw the background
- HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
+ UINT state = lpDIS->itemState;
+ bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
- FillRect(hdc, &rectBtn, hbrushBackground);
+ RECT rectBtn;
+ CopyRect(&rectBtn, &lpDIS->rcItem);
- // draw the border for the current state
- bool selected = (state & ODS_SELECTED) != 0;
- if ( !selected )
+ // draw the button background
+ if ( !HasFlag(wxBORDER_NONE) )
{
- wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
- if ( panel )
+#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) )
{
- selected = panel->GetDefaultItem() == this;
+ 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);
+ }
+ }
}
}
- bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
- DrawButtonFrame(hdc, rectBtn, selected, pushed);
- // draw the focus rect if needed
- if ( state & ODS_FOCUS )
+ // draw the image, if any
+ if ( m_imageData )
{
- RECT rectFocus;
- CopyRect(&rectFocus, &rectBtn);
+ 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);
+ 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;
+ }
- // I don't know where does this constant come from, but this is how
- // Windows draws them
- InflateRect(&rectFocus, -4, -4);
+ wxDCTemp dst((WXHDC)hdc);
+ dst.DrawBitmap(bmp, rectBitmap.GetPosition(), true);
- DrawFocusRect(hdc, &rectFocus);
+ wxCopyRectToRECT(rectButton, rectBtn);
}
- if ( pushed )
+
+ // finally draw the label
+ if ( ShowsLabel() )
{
- // the label is shifted by 1 pixel to create "pushed" effect
- OffsetRect(&rectBtn, 1, 1);
+ COLORREF colFg = state & ODS_DISABLED
+ ? ::GetSysColor(COLOR_GRAYTEXT)
+ : wxColourToRGB(GetForegroundColour());
+
+ // 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, GetLabel(), colFg,
+ state & ODS_NOACCEL ? DT_HIDEPREFIX : 0);
}
- DrawButtonText(hdc, &rectBtn, GetLabel(),
- state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT)
- : colFg);
-
- ::DeleteObject(hbrushBackground);
-
return true;
}
-#endif // __WIN32__
-
#endif // wxUSE_BUTTON
projects / wxWidgets.git / blobdiff