Class | Magick::Image::View |
In: |
lib/RMagick.rb
|
Parent: | Object |
Magick::Image::View class
dirty | [RW] | |
height | [R] | |
width | [R] | |
x | [R] | |
y | [R] |
# File lib/RMagick.rb, line 1040 1040: def initialize(img, x, y, width, height) 1041: img.check_destroyed 1042: if width <= 0 || height <= 0 1043: Kernel.raise ArgumentError, "invalid geometry (#{width}x#{height}+#{x}+#{y})" 1044: end 1045: if x < 0 || y < 0 || (x+width) > img.columns || (y+height) > img.rows 1046: Kernel.raise RangeError, "geometry (#{width}x#{height}+#{x}+#{y}) exceeds image boundary" 1047: end 1048: @view = img.get_pixels(x, y, width, height) 1049: @img = img 1050: @x = x 1051: @y = y 1052: @width = width 1053: @height = height 1054: @dirty = false 1055: end
# File lib/RMagick.rb, line 1057 1057: def [](*args) 1058: rows = Rows.new(@view, @width, @height, args) 1059: rows.add_observer(self) 1060: return rows 1061: end
Store changed pixels back to image
# File lib/RMagick.rb, line 1064 1064: def sync(force=false) 1065: @img.store_pixels(x, y, width, height, @view) if (@dirty || force) 1066: return (@dirty || force) 1067: end