-// ----------------------------------------------------------------------------
-// button images
-// ----------------------------------------------------------------------------
-
-wxBitmap wxButton::DoGetBitmap(State which) const
-{
- return m_imageData ? m_imageData->GetBitmap(which) : wxBitmap();
-}
-
-void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which)
-{
- // 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);
- }
-
- // 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();
-}
-
-// ----------------------------------------------------------------------------
-// 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,
- const wxString& text,
- COLORREF col,
- int flags)
-{
- wxTextColoursChanger changeFg(hdc, col, CLR_INVALID);
- wxBkModeChanger changeBkMode(hdc, wxBRUSHSTYLE_TRANSPARENT);
-
- // center text horizontally in any case
- flags |= DT_CENTER;
-
- 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);
- }
-}
-
-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
- ) )
- {
- 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;
- }
-
- 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());
-
- // 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);
- }
-
- return true;
-}
-
projects / wxWidgets.git / blobdiff