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 828 828: def initialize(img, x, y, width, height) 829: if width <= 0 || height <= 0 830: raise ArgumentError, "invalid geometry (#{width}x#{height}+#{x}+#{y})" 831: end 832: if x < 0 || y < 0 || (x+width) > img.columns || (y+height) > img.rows 833: raise RangeError, "geometry (#{width}x#{height}+#{x}+#{y}) exceeds image boundary" 834: end 835: @view = img.get_pixels(x, y, width, height) 836: @img = img 837: @x = x 838: @y = y 839: @width = width 840: @height = height 841: @dirty = false 842: end
# File lib/RMagick.rb, line 844 844: def [](*args) 845: rows = Rows.new(@view, @width, @height, args) 846: rows.add_observer(self) 847: return rows 848: end
Store changed pixels back to image
# File lib/RMagick.rb, line 851 851: def sync(force=false) 852: @img.store_pixels(x, y, width, height, @view) if (@dirty || force) 853: return (@dirty || force) 854: end