Public Types

enum class Type {
fill_rect , stroke_rect , fill_rounded_rect , stroke_rounded_rect ,
fill_circle , stroke_circle , stroke_line , stroke_arc ,
fill_text , set_font , set_text_align , set_text_baseline ,
stroke_text , set_font_full , set_fill_color , set_stroke_color ,
set_line_width , set_line_cap , set_line_join , set_global_alpha ,
set_blend_mode , set_fill_gradient_linear , set_fill_gradient_radial , clear_fill_gradient ,
set_fill_gradient_radial_two_circles , set_fill_gradient_conic , set_stroke_gradient_linear , set_stroke_gradient_radial ,
set_stroke_gradient_radial_two_circles , set_stroke_gradient_conic , clear_stroke_gradient , set_fill_pattern ,
set_stroke_pattern , begin_path , move_to , line_to ,
quad_to , cubic_to , close_path , fill_path ,
stroke_path , clip_path , path_arc , path_arc_to ,
path_ellipse , path_round_rect , save , restore ,
translate , scale , rotate , clip_rect ,
set_transform , clip , draw_image , draw_sdf ,
set_line_dash , put_image_data , set_shadow_color , set_shadow_blur ,
set_shadow_offset_x , set_shadow_offset_y , set_miter_limit , set_image_smoothing ,
set_direction , set_filter , clear , clear_rect ,
replay_group
}

Public Attributes
Type	type = Type::clear
float	x = 0
float	y = 0
float	w = 0
float	h = 0
float	x2 = 0
float	y2 = 0
float	x3 = 0
float	y3 = 0
canvas::Color	color {255, 255, 255, 255}
float	extra = 0
std::string	text
std::string	shader_sksl
std::vector< canvas::Canvas::NamedUniform >	shader_uniforms
std::optional< canvas::Canvas::ShaderGeometry >	shader_geometry
int	int_val = 0
std::vector< canvas::Color >	gradient_colors
std::vector< float >	gradient_positions
bool	use_active_style = false
	When true on a fill_rect / stroke_rect cmd, the paint loop must NOT call set_fill_color / set_stroke_color from color before drawing.
bool	has_source_rect = false
	When true on a draw_image cmd, x2/y2/x3/y3 carry the source rect (sx, sy, sw, sh) for the 9-arg ctx.drawImage(img, sx,sy,sw,sh, dx,dy,dw,dh) form.

Detailed Description

A draw command recorded from JS for replay in paint().

Maps to CanvasRenderingContext2D methods.

Member Enumeration Documentation

◆ Type

enum class pulp::view::CanvasDrawCmd::Type

strong

Enumerator
fill_rect
stroke_rect
fill_rounded_rect
stroke_rounded_rect
fill_circle
stroke_circle
stroke_line
stroke_arc
fill_text
set_font
set_text_align
set_text_baseline
stroke_text
set_font_full
set_fill_color
set_stroke_color
set_line_width
set_line_cap
set_line_join
set_global_alpha
set_blend_mode
set_fill_gradient_linear
set_fill_gradient_radial
clear_fill_gradient
set_fill_gradient_radial_two_circles	Canvas2D ctx.createRadialGradient(x0,y0,r0,x1,y1,r1) two-circle form. Inner circle (x0,y0,r0) packed as (x, y, extra), outer circle (x1,y1,r1) packed as (x2, y2, w). Routes to set_fill_gradient_radial_two_circles (Skia: MakeTwoPointConical; CG: full CGContextDrawRadialGradient with both circles).
set_fill_gradient_conic
set_stroke_gradient_linear
set_stroke_gradient_radial
set_stroke_gradient_radial_two_circles
set_stroke_gradient_conic
clear_stroke_gradient
set_fill_pattern
set_stroke_pattern
begin_path
move_to
line_to
quad_to
cubic_to
close_path
fill_path
stroke_path
clip_path
path_arc
path_arc_to
path_ellipse
path_round_rect
save
restore
translate
scale
rotate
clip_rect
set_transform
clip
draw_image
draw_sdf
set_line_dash	pattern in gradient_positions, phase in extra
put_image_data	RGBA pixels in text (binary), int_val=width, x2=height (as int).
set_shadow_color	color in color
set_shadow_blur	blur (px) in extra
set_shadow_offset_x	dx (px) in extra
set_shadow_offset_y	dy (px) in extra
set_miter_limit	limit in extra
set_image_smoothing	enabled in int_val (0/1), quality in extra (0=low,1=med,2=high)
set_direction
set_filter
clear
clear_rect
replay_group

Member Data Documentation

◆ color

canvas::Color pulp::view::CanvasDrawCmd::color {255, 255, 255, 255}

◆ extra

float pulp::view::CanvasDrawCmd::extra = 0

◆ gradient_colors

std::vector<canvas::Color> pulp::view::CanvasDrawCmd::gradient_colors

◆ gradient_positions

std::vector<float> pulp::view::CanvasDrawCmd::gradient_positions

◆ h

float pulp::view::CanvasDrawCmd::h = 0

◆ has_source_rect

bool pulp::view::CanvasDrawCmd::has_source_rect = false

When true on a draw_image cmd, x2/y2/x3/y3 carry the source rect (sx, sy, sw, sh) for the 9-arg ctx.drawImage(img, sx,sy,sw,sh, dx,dy,dw,dh) form.

The renderer routes through Canvas::draw_image_from_*_rect so the source sub-rectangle of the decoded image maps onto the destination rect (sprite-sheet slicing). Without the flag the dst-only path runs.

◆ int_val

int pulp::view::CanvasDrawCmd::int_val = 0

◆ shader_geometry

std::optional<canvas::Canvas::ShaderGeometry> pulp::view::CanvasDrawCmd::shader_geometry

◆ shader_sksl

std::string pulp::view::CanvasDrawCmd::shader_sksl

◆ shader_uniforms

std::vector<canvas::Canvas::NamedUniform> pulp::view::CanvasDrawCmd::shader_uniforms

◆ text

std::string pulp::view::CanvasDrawCmd::text

◆ type

Type pulp::view::CanvasDrawCmd::type = Type::clear

◆ use_active_style

bool pulp::view::CanvasDrawCmd::use_active_style = false

When true on a fill_rect / stroke_rect cmd, the paint loop must NOT call set_fill_color / set_stroke_color from color before drawing.

The most recent set_fill_color, set_stroke_color, or set_fill_gradient_* on the underlying canvas stays active. Bridge sets this when the JS caller omitted the color arg (e.g. canvasRect(id, x, y, w, h) — Canvas2D ctx.fillRect() shim that relies on a previously-set ctx.fillStyle, including gradients).