hardstop_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/effects/SkGradientShader.h"

Go to the source code of this file.

Classes
class	HardstopGradientShaderGM

Functions
static void	shade_rect (SkCanvas *canvas, sk_sp< SkShader > shader, int cellRow, int cellCol)
static void	create_gradient_points (int cellRow, int cellCol, SkPoint points[2])

Variables
const int	WIDTH = 500
const int	HEIGHT = 500
const int	NUM_ROWS = 8
const int	NUM_COLS = 3
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

create_gradient_points()

static void create_gradient_points ( int  cellRow, int  cellCol, SkPoint  points[2]  )

static

Definition at line 80 of file hardstop_gradients.cpp.

                                                                                {
    const int X_OFFSET = 30;
 
    auto x0 = SkIntToScalar(cellCol     * CELL_WIDTH  + PAD_WIDTH  + X_OFFSET);
    auto x1 = SkIntToScalar((cellCol+1) * CELL_WIDTH  - PAD_WIDTH  - X_OFFSET);
    auto y  = SkIntToScalar(cellRow     * CELL_HEIGHT + PAD_HEIGHT + RECT_HEIGHT/2);
 
    points[0] = SkPoint::Make(x0, y);
    points[1] = SkPoint::Make(x1, y);
}

shade_rect()

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

static

Definition at line 68 of file hardstop_gradients.cpp.

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

Variable Documentation

CELL_HEIGHT

const int CELL_HEIGHT = HEIGHT / NUM_ROWS

Definition at line 60 of file hardstop_gradients.cpp.

CELL_WIDTH

const int CELL_WIDTH = WIDTH / NUM_COLS

Definition at line 59 of file hardstop_gradients.cpp.

HEIGHT

const int HEIGHT = 500

Definition at line 54 of file hardstop_gradients.cpp.

NUM_COLS

const int NUM_COLS = 3

Definition at line 57 of file hardstop_gradients.cpp.

NUM_ROWS

const int NUM_ROWS = 8

Definition at line 56 of file hardstop_gradients.cpp.

PAD_HEIGHT

const int PAD_HEIGHT = 3

Definition at line 63 of file hardstop_gradients.cpp.

PAD_WIDTH

const int PAD_WIDTH = 3

Definition at line 62 of file hardstop_gradients.cpp.

RECT_HEIGHT

const int RECT_HEIGHT = CELL_HEIGHT - (2 * PAD_HEIGHT)

Definition at line 66 of file hardstop_gradients.cpp.

RECT_WIDTH

const int RECT_WIDTH = CELL_WIDTH - (2 * PAD_WIDTH)

Definition at line 65 of file hardstop_gradients.cpp.

WIDTH

const int WIDTH = 500

Definition at line 53 of file hardstop_gradients.cpp.