gammatext.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFont.h"
#include "include/core/SkFontStyle.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "tools/fonts/FontToolUtils.h"

Go to the source code of this file.

Classes
class	GammaTextGM
class	GammaShaderTextGM

Macros
#define	HEIGHT   480

Functions
static sk_sp< SkShader >	make_heatGradient (const SkPoint pts[2])
static sk_sp< SkShader >	make_gradient (SkColor c)
static void	draw_pair (SkCanvas *canvas, const SkFont &font, SkColor color, const sk_sp< SkShader > &shader)
	DEF_SIMPLE_GM_BG (gammatext_color_shader, canvas, 300, 275, SK_ColorGRAY)

Macro Definition Documentation

HEIGHT

#define HEIGHT   480

Test a set of clipping problems discovered while writing blitAntiRect, and test all the code paths through the clipping blitters. Each region should show as a blue center surrounded by a 2px green border, with no red.

Definition at line 40 of file gammatext.cpp.

Function Documentation

DEF_SIMPLE_GM_BG()

DEF_SIMPLE_GM_BG	(	gammatext_color_shader	,
		canvas	,
		300	,
		275	,
		SK_ColorGRAY
	)

Definition at line 160 of file gammatext.cpp.

                                                                         {
    const char* kText = "ABCDEFG";
    sk_sp<SkTypeface> tf = ToolUtils::CreatePortableTypeface("serif", SkFontStyle());
    SkASSERT(tf);
    SkFont font(tf, 18);
    font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
 
    canvas->translate(10, 30);
    for (int i = 0; i < 256; i += 20) {
        SkColor color = SkColorSetRGB(i, i, i);
        SkPaint paint;
        paint.setColor(color);
        canvas->drawString(kText, 0, 0, font, paint);
        paint.setShader(SkShaders::Color(color));
        canvas->drawString(kText, 100, 0, font, paint);
        paint.setShader(SkShaders::Color(SkColor4f::FromColor(color), SkColorSpace::MakeSRGB()));
        canvas->drawString(kText, 200, 0, font, paint);
        canvas->translate(0, 20);
    }
}

draw_pair()

static void draw_pair ( SkCanvas *  canvas, const SkFont &  font, SkColor  color, const sk_sp< SkShader > &  shader  )

static

Definition at line 105 of file gammatext.cpp.

                                                     {
    static const char text[] = "Now is the time for all good";
    SkPaint paint;
    paint.setColor(color);
    canvas->drawString(text, 10, 20, font, paint);
    paint.setShader(SkShaders::Color(paint.getColor()));
    canvas->drawString(text, 10, 40, font, paint);
    paint.setShader(shader);
    canvas->drawString(text, 10, 60, font, paint);
}

make_gradient()

static sk_sp< SkShader > make_gradient ( SkColor  c )

static

Definition at line 97 of file gammatext.cpp.

                                                {
    const SkPoint pts[] = { { 0, 0 }, { 240, 0 } };
    SkColor colors[2];
    colors[0] = c;
    colors[1] = SkColorSetA(c, 0);
    return SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkTileMode::kClamp);
}

make_heatGradient()

static sk_sp< SkShader > make_heatGradient ( const SkPoint  pts[2] )

static

Definition at line 27 of file gammatext.cpp.

                                                               {
    const SkColor bw[] = { SK_ColorBLACK, SK_ColorWHITE };
 
    return SkGradientShader::MakeLinear(pts, bw, nullptr, std::size(bw), SkTileMode::kClamp);
}