analytic_gradients.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.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/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "include/private/base/SkTemplates.h"

Go to the source code of this file.

Classes
class	AnalyticGradientShaderGM

Functions
static void	shade_rect (SkCanvas *canvas, sk_sp< SkShader > shader, int cellRow, int cellCol)

Variables
const int	M1_POSITIONS [] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }
const int	M2_POSITIONS [] = { 0, 1,1, 2,2, 3,3, 4,4, 5,5, 6,6, 7,7, 8 }
const int	M3_POSITIONS [] = { 0, 1, 2,2, 3, 4,4, 5, 6,6, 7, 8 }
const int	M4_POSITIONS [] = { 0, 1,1, 2, 3,3, 4, 5,5, 6, 7,7, 8 }
const int	INT1_COLOR_COUNTS [] = { 2, 2, 2, 2 }
const int	INT2_COLOR_COUNTS [] = { 3, 4, 3, 4 }
const int	INT3_COLOR_COUNTS [] = { 4, 6, 5, 5 }
const int	INT4_COLOR_COUNTS [] = { 5, 8, 6, 7 }
const int	INT5_COLOR_COUNTS [] = { 6, 10, 8, 8 }
const int	INT6_COLOR_COUNTS [] = { 7, 12, 9, 10 }
const int	INT7_COLOR_COUNTS [] = { 8, 14, 11, 11 }
const int	INT8_COLOR_COUNTS [] = { 9, 16, 12, 13 }
const SkColor	COLORS []
const int *	INTERVAL_COLOR_COUNTS []
const int	COLOR_COUNT = std::size(COLORS)
const int *	M_POSITIONS []
const int	WIDTH = 500
const int	HEIGHT = 500
const int	NUM_ROWS = 8
const int	NUM_COLS = 4
const int	CELL_WIDTH = WIDTH / NUM_COLS
const int	CELL_HEIGHT = HEIGHT / NUM_ROWS
const int	PAD_WIDTH = 3
const int	PAD_HEIGHT = 3
const int	RECT_WIDTH = CELL_WIDTH - (2 * PAD_WIDTH)
const int	RECT_HEIGHT = CELL_HEIGHT - (2 * PAD_HEIGHT)

Function Documentation

shade_rect()

static void shade_rect ( SkCanvas *  canvas, sk_sp< SkShader >  shader, int  cellRow, int  cellCol  )

static

Definition at line 120 of file analytic_gradients.cpp.

                                                                                           {
    SkPaint paint;
    paint.setShader(shader);
 
    canvas->save();
    canvas->translate(SkIntToScalar(cellCol * CELL_WIDTH + PAD_WIDTH),
                      SkIntToScalar(cellRow * CELL_HEIGHT + PAD_HEIGHT));
 
    const SkRect rect = SkRect::MakeWH(SkIntToScalar(RECT_WIDTH), SkIntToScalar(RECT_HEIGHT));
    canvas->drawRect(rect, paint);
    canvas->restore();
}

Variable Documentation

CELL_HEIGHT

const int CELL_HEIGHT = HEIGHT / NUM_ROWS

Definition at line 112 of file analytic_gradients.cpp.

CELL_WIDTH

const int CELL_WIDTH = WIDTH / NUM_COLS

Definition at line 111 of file analytic_gradients.cpp.

COLOR_COUNT

const int COLOR_COUNT = std::size(COLORS)

Definition at line 96 of file analytic_gradients.cpp.

COLORS

const SkColor COLORS[]

Initial value:

= {
    SK_ColorDKGRAY,
    SK_ColorRED,
    SK_ColorYELLOW,
    SK_ColorGREEN,
    SK_ColorCYAN,
    SK_ColorBLUE,
    SK_ColorMAGENTA,
    SK_ColorBLACK,
    SK_ColorLTGRAY
}

Definition at line 74 of file analytic_gradients.cpp.

HEIGHT

const int HEIGHT = 500

Definition at line 106 of file analytic_gradients.cpp.

INT1_COLOR_COUNTS

const int INT1_COLOR_COUNTS[] = { 2, 2, 2, 2 }

Definition at line 64 of file analytic_gradients.cpp.

INT2_COLOR_COUNTS

const int INT2_COLOR_COUNTS[] = { 3, 4, 3, 4 }

Definition at line 65 of file analytic_gradients.cpp.

INT3_COLOR_COUNTS

const int INT3_COLOR_COUNTS[] = { 4, 6, 5, 5 }

Definition at line 66 of file analytic_gradients.cpp.

INT4_COLOR_COUNTS

const int INT4_COLOR_COUNTS[] = { 5, 8, 6, 7 }

Definition at line 67 of file analytic_gradients.cpp.

INT5_COLOR_COUNTS

const int INT5_COLOR_COUNTS[] = { 6, 10, 8, 8 }

Definition at line 68 of file analytic_gradients.cpp.

INT6_COLOR_COUNTS

const int INT6_COLOR_COUNTS[] = { 7, 12, 9, 10 }

Definition at line 69 of file analytic_gradients.cpp.

INT7_COLOR_COUNTS

const int INT7_COLOR_COUNTS[] = { 8, 14, 11, 11 }

Definition at line 70 of file analytic_gradients.cpp.

INT8_COLOR_COUNTS

const int INT8_COLOR_COUNTS[] = { 9, 16, 12, 13 }

Definition at line 71 of file analytic_gradients.cpp.

INTERVAL_COLOR_COUNTS

const int* INTERVAL_COLOR_COUNTS[]

Initial value:

= {
    INT1_COLOR_COUNTS,
    INT2_COLOR_COUNTS,
    INT3_COLOR_COUNTS,
    INT4_COLOR_COUNTS,
    INT5_COLOR_COUNTS,
    INT6_COLOR_COUNTS,
    INT7_COLOR_COUNTS,
    INT8_COLOR_COUNTS
}

Definition at line 86 of file analytic_gradients.cpp.

M1_POSITIONS

const int M1_POSITIONS[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }

Definition at line 58 of file analytic_gradients.cpp.

M2_POSITIONS

const int M2_POSITIONS[] = { 0, 1,1, 2,2, 3,3, 4,4, 5,5, 6,6, 7,7, 8 }

Definition at line 59 of file analytic_gradients.cpp.

M3_POSITIONS

const int M3_POSITIONS[] = { 0, 1, 2,2, 3, 4,4, 5, 6,6, 7, 8 }

Definition at line 60 of file analytic_gradients.cpp.

M4_POSITIONS

const int M4_POSITIONS[] = { 0, 1,1, 2, 3,3, 4, 5,5, 6, 7,7, 8 }

Definition at line 61 of file analytic_gradients.cpp.

M_POSITIONS

const int* M_POSITIONS[]

Initial value:

= {
    M1_POSITIONS,
    M2_POSITIONS,
    M3_POSITIONS,
    M4_POSITIONS
}

Definition at line 98 of file analytic_gradients.cpp.

NUM_COLS

const int NUM_COLS = 4

Definition at line 109 of file analytic_gradients.cpp.

NUM_ROWS

const int NUM_ROWS = 8

Definition at line 108 of file analytic_gradients.cpp.

PAD_HEIGHT

const int PAD_HEIGHT = 3

Definition at line 115 of file analytic_gradients.cpp.

PAD_WIDTH

const int PAD_WIDTH = 3

Definition at line 114 of file analytic_gradients.cpp.

RECT_HEIGHT

const int RECT_HEIGHT = CELL_HEIGHT - (2 * PAD_HEIGHT)

Definition at line 118 of file analytic_gradients.cpp.

RECT_WIDTH

const int RECT_WIDTH = CELL_WIDTH - (2 * PAD_WIDTH)

Definition at line 117 of file analytic_gradients.cpp.

WIDTH

const int WIDTH = 500

Definition at line 105 of file analytic_gradients.cpp.