コード例 #1
0
boolean gdiplus_textlayout(textpara_t *para, char **fontpath)
{
	/* ensure GDI+ is started up: since we get called outside of a job, we can't rely on GDI+ startup then */
	UseGdiplus();
	
	Layout* layout = new Layout(para->fontname, para->fontsize, para->str);
	
	/* measure the text */
	/* NOTE: use TextRenderingHintAntiAlias + GetGenericTypographic to get a layout without extra space at beginning and end */
	RectF boundingBox;
	DeviceContext deviceContext;
	Graphics measureGraphics(deviceContext.hdc);
	measureGraphics.SetTextRenderingHint(TextRenderingHintAntiAlias);
	measureGraphics.MeasureString(
		&layout->text[0],
		layout->text.size(),
		layout->font,
		PointF(0.0f, 0.0f),
		GetGenericTypographic(),
		&boundingBox);
		
	FontFamily fontFamily;
	layout->font->GetFamily(&fontFamily);
	int style = layout->font->GetStyle();
		
	para->layout = (void*)layout;
	para->free_layout = &gdiplus_free_layout;
	para->width = boundingBox.Width;
	para->height = layout->font->GetHeight(&measureGraphics);
	para->yoffset_layout = fontFamily.GetCellAscent(style) * para->fontsize / fontFamily.GetEmHeight(style); /* convert design units to pixels */
	para->yoffset_centerline = 0;
	return TRUE;
};
コード例 #2
0
// --------------------------------------------------------------
GFontWin32GDIPlus::GFontWin32GDIPlus( Font* nativeFont, const char * faceName, 
									  int size, int properties) 
						: mNativeFont(nativeFont), mName(faceName),
						  mSize(size), mFontProp(properties)
{
	DWORD count = (DWORD)mbstowcs(NULL, faceName, strlen(faceName));
	WCHAR * wstr = (WCHAR*) malloc ((count + 1) * sizeof(WCHAR));
	mbstowcs(wstr, faceName, strlen(faceName));
	FontCollection fc;
	FontFamily ff (wstr, &fc);
	int style;
	switch (properties) {
		case kFontBold:
			style = FontStyleBold;
			break;
		case kFontItalic:
			style = FontStyleItalic;
			break;
		case kFontBold+kFontItalic:
			style = FontStyleBoldItalic;
			break;
		case kFontUnderline:
			style = FontStyleUnderline;
			break;
		default:
			style = FontStyleRegular;
	}
	mEmHeight = ff.GetEmHeight(style);
	float ratio = mEmHeight ? (float)mEmHeight / size : 1.f;
	mAscent = ff.GetCellAscent(style) / ratio;
	mDescent = ff.GetCellDescent(style) / ratio;
	free (wstr);
}
コード例 #3
0
void CButtonCx::DrawString(CDC *drawDC, LPDRAWITEMSTRUCT lpDrawItemStruct)
{
	// テキストを得る。
	CString title;
	GetWindowText(title);

	// テキストが空の場合および GDI+ Font/Brush が設定されていない場合何もしない。
	if (title.IsEmpty() || m_GpFont == NULL || m_GpBrush == NULL)
	{
		return;
	}

	// 透過モードにする。
	drawDC->SetBkMode(TRANSPARENT);

	// テキストの描画位置
	CRect rect = (CRect) (lpDrawItemStruct->rcItem); // クライアント四角形の取得
	// マージン設定
	rect.top += m_Margin.top;
	rect.left += m_Margin.left;
	rect.bottom -= m_Margin.bottom;
	rect.right -= m_Margin.right;

	CArray<CString, CString> arr;
	arr.RemoveAll();

	CString resToken;
	int curPos = 0;
	resToken = title.Tokenize(L"\r\n", curPos);
	while (resToken != L"")
	{
		arr.Add(resToken);
		resToken = title.Tokenize(L"\r\n", curPos);
	}

	if (m_FontType == FT_GDI_PLUS || m_FontType == FT_AUTO)	// GDI+
	{
		Gdiplus::Graphics g(drawDC->m_hDC);

		const Gdiplus::PointF pointF(0.0, 0.0);
		Gdiplus::RectF extentF;

		for (int i = 0; i < arr.GetCount(); i++)
		{
			CRect r;
			r.top = (LONG) (((double) rect.Height()) / arr.GetCount() * i);
			r.bottom = (LONG) (((double) rect.Height()) / arr.GetCount() * (i + 1));
			r.left = rect.left;
			r.right = rect.right;

			g.MeasureString(arr.GetAt(i), arr.GetAt(i).GetLength() + 1, m_GpFont, pointF, &extentF); // "+ 1" for workdaround 

			REAL y;
			FontFamily ff;
			m_GpFont->GetFamily(&ff);
			REAL ascent = (REAL) ff.GetCellAscent(FontStyleRegular);
			REAL lineSpacing = (REAL) ff.GetLineSpacing(FontStyleRegular);

			y = r.CenterPoint().y - (extentF.Height * ascent / lineSpacing) / 2;

			Gdiplus::PointF pt(rect.CenterPoint().x - (extentF.Width / 2), y);
			Gdiplus::RectF rectF(pt.X, pt.Y, (REAL) extentF.Width, (REAL) extentF.Height);

			g.SetTextRenderingHint(TextRenderingHintAntiAlias);
			g.DrawString(arr.GetAt(i), -1, m_GpFont, rectF, m_GpStringformat, m_GpBrush);
		}
	}
	else // GDI
	{
		for (int i = 0; i < arr.GetCount(); i++)
		{
			CRect r;
			r.top = rect.top + (LONG) (((double) rect.Height()) / arr.GetCount() * i);
			r.bottom = rect.top + (LONG) (((double) rect.Height()) / arr.GetCount() * (i + 1));
			r.left = rect.left;
			r.right = rect.right;

			CRect rectI;
			CSize extent;
			HGDIOBJ oldFont = drawDC->SelectObject(m_Font);
			GetTextExtentPoint32(drawDC->m_hDC, arr.GetAt(i), arr.GetAt(i).GetLength() + 1, &extent);
			rectI.top = r.top + (r.Height() - extent.cy) / 2;
			rectI.bottom = rectI.top + extent.cy;
			rectI.left = r.left;
			rectI.right = r.right;
			DrawText(drawDC->m_hDC, arr.GetAt(i), arr.GetAt(i).GetLength(), r, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
			drawDC->SelectObject(oldFont);
		}
	}
	// いつか DirectWrite 描画に対応したいものである。。。
}