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 1014 1014: def initialize(img, x, y, width, height) 1015: img.check_destroyed 1016: if width <= 0 || height <= 0 1017: Kernel.raise ArgumentError, "invalid geometry (#{width}x#{height}+#{x}+#{y})" 1018: end 1019: if x < 0 || y < 0 || (x+width) > img.columns || (y+height) > img.rows 1020: Kernel.raise RangeError, "geometry (#{width}x#{height}+#{x}+#{y}) exceeds image boundary" 1021: end 1022: @view = img.get_pixels(x, y, width, height) 1023: @img = img 1024: @x = x 1025: @y = y 1026: @width = width 1027: @height = height 1028: @dirty = false 1029: end
# File lib/RMagick.rb, line 1031 1031: def [](*args) 1032: rows = Rows.new(@view, @width, @height, args) 1033: rows.add_observer(self) 1034: return rows 1035: end
Store changed pixels back to image
# File lib/RMagick.rb, line 1038 1038: def sync(force=false) 1039: @img.store_pixels(x, y, width, height, @view) if (@dirty || force) 1040: return (@dirty || force) 1041: end