win32context.cpp

来自「这是VCF框架的代码」· C++ 代码 · 共 2,636 行 · 第 1/5 页

	}

	if ( theme ) {
		RECT btnRect;
		btnRect.left = rect->left_;
		btnRect.top = rect->top_;
		btnRect.right = rect->right_;
		btnRect.bottom = rect->bottom_;
		btnRect.right = btnRect.left + (btnRect.bottom - btnRect.top);



		int dcs = SaveDC( dc_ );

		int btnState = 0;
		bool normal = true;
		if ( state.isPressed() ) {
			btnState |= state.isToggled() ? CBS_CHECKEDPRESSED : CBS_UNCHECKEDPRESSED;
			normal = false;
		}

		if ( !state.isEnabled() ) {
			btnState |= state.isToggled() ? CBS_CHECKEDDISABLED : CBS_UNCHECKEDDISABLED;
			normal = false;
		}

		if ( state.isFocused() || state.isHighlighted() ) {
			btnState |= state.isToggled() ? CBS_CHECKEDHOT : CBS_UNCHECKEDHOT;
			normal = false;
		}

		if ( normal ) {
			btnState |= state.isToggled() ? CBS_CHECKEDNORMAL : CBS_UNCHECKEDNORMAL;

		}

		SIZE val = {0};
		Win32VisualStylesWrapper::GetThemePartSize (theme, dc_, BP_CHECKBOX, 0, NULL, TS_DRAW, &val );

		btnRect.right = btnRect.left + val.cx;

		Win32VisualStylesWrapper::DrawThemeBackground(theme, dc_, BP_CHECKBOX, btnState, &btnRect, 0);

		btnRect.left = btnRect.right;
		btnRect.right = rect->right_;


		SetBkMode(dc_, TRANSPARENT);
		VCF::Font btnFont = *context_->getCurrentFont();

		HFONT font = NULL;
		if ( System::isUnicodeEnabled() ) {
			LOGFONTW* lf = (LOGFONTW*) btnFont.getFontPeer()->getFontHandleID();
			font = ::CreateFontIndirectW( lf );
			::SelectObject( dc_, font );
		}
		else {
			LOGFONTA* lf = (LOGFONTA*) btnFont.getFontPeer()->getFontHandleID();
			font = ::CreateFontIndirectA( lf );
			::SelectObject( dc_, font );
		}

		btnRect.left += 5; //this is totally made up! Where would I get this from????

		Win32VisualStylesWrapper::DrawThemeText(theme, dc_, BP_CHECKBOX, btnState,
			state.buttonCaption_.c_str(),
			state.buttonCaption_.length(),
			DT_SINGLELINE | DT_VCENTER, NULL,
			&btnRect);


		Win32VisualStylesWrapper::CloseThemeData( theme );

		RestoreDC(dc_, dcs );

		DeleteObject( font );

	}
	else {


	/**
	JC
	it turns out that the height/width is ALWAYS 13 pixels - no matter what
	the DPI is
	GetSystemMetrics( SM_CXMENUCHECK ) returns a value that changes based on the DPI
	13 at 96 DPI and 17 at 120 DPI
		*/
		int checkBoxHeight = 13;

		tmp.top_ = (int)(rect->top_ + rect->getHeight() /2.0 + 0.5);
		tmp.top_ -= checkBoxHeight/2;
		tmp.bottom_ = tmp.top_ + checkBoxHeight;
		tmp.right_ = tmp.left_ + checkBoxHeight;




		RECT r = {0,0,0,0};
		r.left = (long)tmp.left_;
		r.top = (long)tmp.top_;
		r.right = (long)tmp.right_;
		r.bottom = (long)tmp.bottom_;
		UINT chkState =  (state.isToggled() || state.isPressed()) ?  DFCS_BUTTONCHECK | DFCS_CHECKED : DFCS_BUTTONCHECK;

		int err = ::DrawFrameControl( dc_, &r, DFC_BUTTON, chkState );


		tmp = *rect;
		tmp.left_ = r.right + 3;
		tmp.inflate( -1.0, -1.0 );

		/*
		JC - commented this out - it looked dorky???
		if ( state.isFocused() ) {
		drawThemeFocusRect( &tmp, state );
		}
		*/


		releaseHandle();

		long flags = GraphicsContext::tdoCenterVertAlign;
		context_->textBoundedBy( &tmp, state.buttonCaption_, flags );
	}
}

void Win32Context::drawThemeRadioButtonRect( Rect* rect, ButtonState& state )
{
	checkHandle();

	Rect tmp = *rect;

	HTHEME theme = NULL;

	if ( Win32VisualStylesWrapper::IsThemeActive() ) {
		theme = Win32VisualStylesWrapper::OpenThemeData( NULL, L"BUTTON" );
	}

	if ( theme ) {
		RECT btnRect;
		btnRect.left = rect->left_;
		btnRect.top = rect->top_;
		btnRect.right = rect->right_;
		btnRect.bottom = rect->bottom_;
		btnRect.right = btnRect.left + (btnRect.bottom - btnRect.top);



		int dcs = SaveDC( dc_ );

		int btnState = 0;
		bool normal = true;
		if ( state.isPressed() ) {
			btnState |= state.isToggled() ? RBS_CHECKEDPRESSED : RBS_UNCHECKEDPRESSED;
			normal = false;
		}

		if ( !state.isEnabled() ) {
			btnState |= state.isToggled() ? RBS_CHECKEDDISABLED : RBS_UNCHECKEDDISABLED;
			normal = false;
		}

		if ( state.isFocused() || state.isHighlighted() ) {
			btnState |= state.isToggled() ? RBS_CHECKEDHOT : RBS_UNCHECKEDHOT;
			normal = false;
		}

		if ( normal ) {
			btnState |= state.isToggled() ? RBS_CHECKEDNORMAL : RBS_UNCHECKEDNORMAL;

		}

		SIZE val = {0};
		Win32VisualStylesWrapper::GetThemePartSize (theme, dc_, BP_RADIOBUTTON, 0, NULL, TS_DRAW, &val );

		btnRect.right = btnRect.left + val.cx;

		Win32VisualStylesWrapper::DrawThemeBackground(theme, dc_, BP_RADIOBUTTON, btnState, &btnRect, 0);

		btnRect.left = btnRect.right;
		btnRect.right = rect->right_;


		SetBkMode(dc_, TRANSPARENT);
		VCF::Font btnFont = *context_->getCurrentFont();

		HFONT font = NULL;
		if ( System::isUnicodeEnabled() ) {
			LOGFONTW* lf = (LOGFONTW*) btnFont.getFontPeer()->getFontHandleID();
			font = ::CreateFontIndirectW( lf );
			::SelectObject( dc_, font );
		}
		else {
			LOGFONTA* lf = (LOGFONTA*) btnFont.getFontPeer()->getFontHandleID();
			font = ::CreateFontIndirectA( lf );
			::SelectObject( dc_, font );
		}

		btnRect.left += 5; //this is totally made up! Where would I get this from????

		Win32VisualStylesWrapper::DrawThemeText(theme, dc_, BP_RADIOBUTTON, btnState,
			state.buttonCaption_.c_str(),
			state.buttonCaption_.length(),
			DT_SINGLELINE | DT_VCENTER, NULL,
			&btnRect);


		Win32VisualStylesWrapper::CloseThemeData( theme );

		RestoreDC(dc_, dcs );

		DeleteObject( font );

	}
	else {
	/**
	JC
	it turns out that the height/width is ALWAYS 13 pixels - no matter what
	the DPI is
	GetSystemMetrics( SM_CXMENUCHECK ) returns a value that changes based on the DPI
	13 at 96 DPI and 17 at 120 DPI
		*/
		int radioBoxHeight = 13;

		tmp.top_ = (int)(rect->top_ + rect->getHeight() /2.0 + 0.5);
		tmp.top_ -= radioBoxHeight/2;
		tmp.bottom_ = tmp.top_ + radioBoxHeight;
		tmp.right_ = tmp.left_ + radioBoxHeight;




		RECT r = {0,0,0,0};
		r.left = (long)tmp.left_;
		r.top = (long)tmp.top_;
		r.right = (long)tmp.right_;
		r.bottom = (long)tmp.bottom_;

		UINT btnState =  state.isToggled() ?  DFCS_BUTTONRADIO | DFCS_CHECKED : DFCS_BUTTONRADIO;

		::DrawFrameControl( dc_, &r, DFC_BUTTON, btnState );


		tmp = *rect;
		tmp.left_ = r.right + 3;
		tmp.inflate( -1.0, -1.0 );

		/*
		JC - commented this out - it looked dorky???
		if ( state.isFocused() ) {
		drawThemeFocusRect( &tmp, state );
		}
		*/

		releaseHandle();


		long flags = GraphicsContext::tdoCenterVertAlign;
		context_->textBoundedBy( &tmp, state.buttonCaption_, flags );
	}
}

void Win32Context::drawThemeComboboxRect( Rect* rect, ButtonState& state )
{
	HTHEME theme = NULL;

	RECT r = {0};
	r.left = rect->left_;
	r.top = rect->top_;
	r.right = rect->right_;
	r.bottom = rect->bottom_;

	if ( Win32VisualStylesWrapper::IsThemeActive() ) {
		theme = Win32VisualStylesWrapper::OpenThemeData( NULL, L"EDIT" );
	}

	if ( theme ) {
		int dcs = SaveDC( dc_ );

		int btnState = 0;

		btnState |= state.isPressed() ? CBXS_PRESSED : CBXS_NORMAL;

		if ( !state.isEnabled() ) {
			btnState |= CBXS_DISABLED;
		}

		if ( state.isFocused() || state.isHighlighted() ) {
			btnState |= CBXS_HOT;
		}

		int editState = state.isEnabled() ? ETS_NORMAL : ETS_DISABLED;

		if ( state.isEnabled() ) {
			if ( state.isFocused() ) {
				editState |= ETS_FOCUSED;
				editState |= ETS_SELECTED;
			}
			if ( state.isHighlighted() ) {
				editState |= ETS_HOT;
			}
		}




		Win32VisualStylesWrapper::DrawThemeBackground(theme, dc_, EP_EDITTEXT, editState, &r, 0);

		SetBkMode(dc_, TRANSPARENT);
		VCF::Font btnFont = *context_->getCurrentFont();

		HFONT font = NULL;
		if ( System::isUnicodeEnabled() ) {
			LOGFONTW* lf = (LOGFONTW*) btnFont.getFontPeer()->getFontHandleID();
			font = ::CreateFontIndirectW( lf );
			::SelectObject( dc_, font );
		}
		else {
			LOGFONTA* lf = (LOGFONTA*) btnFont.getFontPeer()->getFontHandleID();
			font = ::CreateFontIndirectA( lf );
			::SelectObject( dc_, font );
		}

		r.left += 2;
		r.top += 2;
		r.bottom -= 2;
		r.right -= 2;

		Win32VisualStylesWrapper::DrawThemeText(theme, dc_, EP_EDITTEXT, editState,
												state.buttonCaption_.c_str(),
												state.buttonCaption_.length(),
												DT_SINGLELINE | DT_VCENTER | DT_LEFT | DT_EXPANDTABS,
												NULL,
												&r);


		Win32VisualStylesWrapper::CloseThemeData( theme );

		r.left -= 1;
		r.top -= 1;
		r.bottom += 1;
		r.right += 1;

		//now do drop down button
		theme = Win32VisualStylesWrapper::OpenThemeData( NULL, L"COMBOBOX" );
		SIZE val = {0};
		HRESULT hr = Win32VisualStylesWrapper::GetThemePartSize (theme, dc_, CP_DROPDOWNBUTTON, 0, NULL, TS_DRAW, &val );
		if ( SUCCEEDED(hr) && val.cx != 0 ) {
			r.left = r.right - val.cx;
		}
		else {
			//do it the old way???
			NONCLIENTMETRICS ncm;
			memset( &ncm, 0, sizeof(NONCLIENTMETRICS) );
			ncm.cbSize = sizeof(NONCLIENTMETRICS);

			SystemParametersInfo( SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, 0 );
			r.left = r.right - ncm.iScrollWidth;
		}


		Win32VisualStylesWrapper::DrawThemeBackground(theme, dc_, CP_DROPDOWNBUTTON, btnState, &r, 0);



		Win32VisualStylesWrapper::CloseThemeData( theme );

		RestoreDC(dc_, dcs );

		DeleteObject( font );
	}
	else {

		int dcState = ::SaveDC( dc_ );


		::FillRect( dc_, &r, (HBRUSH)(COLOR_WINDOW+1) );

		RECT btnRect = r;

		NONCLIENTMETRICS ncm;
		memset( &ncm, 0, sizeof(NONCLIENTMETRICS) );
		ncm.cbSize = sizeof(NONCLIENTMETRICS);

		SystemParametersInfo( SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, 0 );

		btnRect.left = r.right - ncm.iScrollWidth;

		::FillRect( dc_, &btnRect, (HBRUSH)(COLOR_3DFACE+1) );

		UINT flags = 0;

		flags |= DFCS_SCROLLDOWN;

		if ( state.isPressed() ) {
			// Native win32 pressed combobox buttons are always flat, so
			// we're going to do our best to make it look flat in our
			// combobox emulation too
			flags |= DFCS_PUSHED | DFCS_FLAT;
		}

		if ( !state.isEnabled() ) {
			flags |= DFCS_INACTIVE;
		}

		DrawFrameControl( dc_, &btnRect, DFC_SCROLL, flags );

		RECT bkRect = r;
		bkRect.right = btnRect.left;


		SetBkMode( dc_, TRANSPARENT );
		COLORREF bkColor;
		COLORREF textColor;
		if ( !state.isEnabled() ) {
			bkColor = GetSysColor( COLOR_BTNFACE );
			textColor = GetSysColor( COLOR_WINDOWTEXT );
		}
		else {
			InflateRect( &bkRect, -2, -2 );

			if ( state.isFocused() ) {
				bkColor = GetSysColor( COLOR_HIGHLIGHT );
				textColor = GetSysColor( COLOR_HIGHLIGHTTEXT );

				InflateRect( &bkRect, +1, +1 );

				::DrawFocusRect( dc_, &bkRect );

				InflateRect( &bkRect, -1, -1 );
			}
			else {
				bkColor = GetSysColor( COLOR_WINDOW );
				textColor = GetSysColor( COLOR_WINDOWTEXT );
			}
		}

		HBRUSH bkBrush = CreateSolidBrush( bkColor );

		FillRect( dc_, &bkRect, bkBrush );
		SetTextColor( dc_, textColor );
		UINT fmt = DT_VCENTER | DT_SINGLELINE | DT_LEFT | DT_EXPANDTABS | DT_END_ELLIPSIS;

		HFONT font;
		prepareDCWithContextFont( font );

		::SelectObject( dc_, font );

		if ( System::isUnicodeEnabled() ) {
			DrawTextW( dc_, state.buttonCaption_.c_str(), state.buttonCaption_.size(), &bkRect, fmt );
		}
		else {
			AnsiString tmp = state.buttonCaption_;
			DrawTextA( dc_, tmp.c_str(), tmp.size(), &bkRect, fmt );
		}


		::RestoreDC( dc_, dcState );

		DeleteObject( font );
		DeleteObject( bkBrush );
	}
}

void Win32Context::drawThemeScrollButtonRect( Rect* rect, ScrollBarState& state )
{
	checkHandle();

	RECT r = {0,0,0,0};
	r.left = (long)rect->left_;
	r.top = (long)rect->top_;
	r.right = (long)rect->right_;
	r.bottom = (long)rect->bottom_;


	HTHEME theme = NULL;

	if ( Win32VisualStylesWrapper::IsThemeActive() ) {
		theme = Win32VisualStylesWrapper::OpenThemeData( NULL, L"SCROLLBAR" );
	}

	if ( theme ) {

		int scrollState = 0;

		if ( state.isVertical() ) {
			if ( state.isUpOrLeftBtn() ) {
				scrollState |= state.isEnabled() ? ABS_UPNORMAL : ABS_UPDISABLED;
			}
			else if ( state.isDownOrRightBtn() ) {
				scrollState |= state.isEnabled() ? ABS_DOWNNORMAL : ABS_DOWNDISABLED;
			}

			if ( state.isEnabled() ) {
				if ( state.isScrollBarIncrArrowPressed() ) {
					scrollState |= ABS_UPPRESSED;
				}
				else if ( state.isScrollBarDecrArrowPressed() ) {
					scrollState |= ABS_DOWNPRESSED;
				}
			}
		}
		else if ( !state.isVertical() ) {
			if ( state.isDownOrRightBtn() ) {
				scrollState |= state.isEnabled() ? ABS_RIGHTNORMAL : ABS_RIGHTDISABLED;
			}
			else if ( state.isUpOrLeftBtn() ) {
				scrollState |= state.isEnabled() ? ABS_LEFTNORMAL : ABS_LEFTDISABLED;
			}

			if ( state.isEnabled() ) {
				if ( state.isScrollBarIncrArrowPressed() ) {
					scrollState |= ABS_LEFTPRESSED;
				}
				else if ( state.isScrollBarDecrArrowPressed() ) {
					scrollState |= ABS_RIGHTPRESSED;
				}
			}
		}



		if ( true == state.isScrollBarThumbPr