C++ Font::DrawText方法代码示例

	void Boot::Draw(Matrix const &)
	{
		Font *font = GetRoot()->GetFont();
		SDL_Surface *surface = GetRoot()->GetSurface();
		Time now = GetRoot()->TimeNow();

		font->DrawText(surface, Matrix::Translate(20,4), Box(), GetRoot()->MakeColor(100,100,100), "build 0-2");

		// draw the 'xiq' text rotating underneath
		std::string xiq = "xiq";
		size_t len = xiq.size();
		float scale = 8;
		float angle = now;
		Matrix M =
			Matrix::Translate(-(int)len*4,-4)
			*Matrix::Scale(scale,scale)
			*Matrix::Rotation(angle)
			*Matrix::Translate(300,200);

		font->DrawShadowedText(
			surface
			, M
			, Box(Point(50,50), Point(400,200))
			, GetRoot()->MakeColor(255,0,0)
			, xiq.c_str());
		font->DrawShadowedText(
			surface
			, M*Matrix::Translate(1,1)
			, Box(Point(50,50), Point(400,200))
			, GetRoot()->MakeColor(0,255,0)
			, xiq.c_str());
		font->DrawShadowedText(
			surface
			, M*Matrix::Translate(2,2)
			, Box(Point(50,50), Point(400,200))
			, GetRoot()->MakeColor(0,0,255)
			, xiq.c_str());

		// draw 'press space' zooming in and out
		{
			std::string text = "press-space";
			size_t len = text.size();

			float scale = 4 + 1.5*sin(now*2);

			Matrix M =
				Matrix::Translate(-(int)len*4 - 2,-4)
				*Matrix::Scale(scale,scale)
				*Matrix::Translate(300,200);

			font->DrawShadowedText(
				surface
				, M
				, Box(Point(50,50), Point(400,200))
				, GetRoot()->MakeColor(255,255,255)
				, text.c_str());
		}
	}

void EditControl::OnPaint(DibBitmap *pbm)
{
	Font *pfnt = gapfnt[m_nfnt];
	Rect rcForm;
	m_pfrm->GetRect(&rcForm);
	int x = m_rc.left + rcForm.left;
	int y = m_rc.top + rcForm.top;
	pbm->Fill(x, y + m_rc.Height() - 1, m_rc.Width(), 1, GetColor(kiclrButtonBorder));
	pfnt->DrawText(pbm, m_szText, x + 1, y);
}

/* add a button */
void Menu::CreateButton(string fontPath, string t,
                        int posx, int posy, int size,
                        SDL_Color c, SDL_Color shadow)
{
    Font font = Font(fontPath.c_str(), APP->GetRenderer());
    font.SetStyle(true, true, size);
    font.SetPos(posx, posy, true);
    font.SetColors(c, shadow);
    font.DrawText(t);
}

void PruebaVentana::Render( double elapsed )
{
	m_d3ddevice.Clear(ClearFlags_Target |ClearFlags_ZBuffer, D3DCOLOR_XRGB(0,40,100),1.0f,0);
	m_d3ddevice.BeginScene();

	static float index = 0;
	index += 1.5f*elapsed;

	Matrix matView;
	matView.LookAtLH(Vector3(3.0f, 1.0f, 3.0f),Vector3(0.0f,0.0f,0.0f),	Vector3(0.0f,1.0f,0.0f));

	m_d3ddevice.Transform.View = matView;

	Matrix matProjection;
	matProjection.PerspectiveFovLH(	D3DXToRadian(45),m_aspect_ratio,1.0f,100.0f);
	m_d3ddevice.Transform.Projection = matProjection;

	Matrix matTranslate; 
    matTranslate.RotationY(index);
	mesh.SetTransform(matTranslate);
	m_d3ddevice.Transform.World = matTranslate;

	effect.SetTechnique("Default");
	effect.SetValue("matWorldViewProj",matTranslate*matView*matProjection);

	effect.SetValue("base_Tex",mesh.m_textures[0]);

	//effect.Begin(FX_None);
	//effect.BeginPass(0);

	mesh.Render();

	char fps[100];
	sprintf(fps,"FPS:%d",m_timer.m_fps);
	font.DrawText(NULL,fps,WRectangle(0,00,100,100),DrawTextFormat_NoClip,0xFFFFFF00);


	//effect.EndPass();
	//effect.End();


	m_d3ddevice.EndScene();
	m_d3ddevice.Present();
}

int FancyTextCore(DibBitmap *pbm, Font *pfntDefault, char *psz, int x, int y, int cch, bool fGetExtent)
{
	dword *mpscaiclr = NULL;
	Font *pfnt = pfntDefault;

	if (cch == 0)
		cch = (int)strlen(psz);

	int cx = 0;

	int cchT = cch;
	char *pchT = psz;
	while (cchT > 0) {
		char ch = *pchT++;
		cchT--;

		if (ch == '@') {
			if (pchT != psz + 1) {
				if (fGetExtent) {
					cx += pfnt->GetTextExtent(psz, (int)(pchT - psz - 1));
				} else {
					cx += pfnt->DrawText(pbm, psz, x, y, (int)(pchT - psz - 1), mpscaiclr);
					x += cx;
				}
				psz = pchT;
			}

			switch (*pchT) {
			// "@@" outputs a single @
			case '@':
				cchT--;
				psz = pchT++;
				continue;

			// "@S." turns on mapping to local player's side color
			case 'S':
				mpscaiclr = TBitmap::s_ampscaiclrSide[gpplrLocal->GetSide()];
				cchT--;
				pchT++;
				break;
			}

			Assert(*pchT == '.');

			// Skip past '.'
			cchT--;
			pchT++;
			psz = pchT;
		}

	}

	if (pchT != psz) {
		if (fGetExtent)
			cx += pfnt->GetTextExtent(psz, (int)(pchT - psz));
		else
			cx += pfnt->DrawText(pbm, psz, x, y, (int)(pchT - psz), mpscaiclr);
	}

	return cx;
}