python-fu復制圖像

Question

我有一個顏色列表文件，將其讀取到python列表中，我想創建一個（或幾個）由正方形組成的圖像，這些正方形具有從文件中讀取的背景色，並作為該顏色的前景html字符串（用白色）。 即我從輸入文件中讀取＃ff0000，然后創建一個100x100的正方形，紅色背景，白色字符串“＃ff0000”作為前景...依此類推，對輸入文件中的每種顏色。

這是我的腳本：

#!/usr/bin/env python
from gimpfu import *

def readColors(ifc):
    """Read colors from input file and return a python list with all them"""
    a = []
    fd = open(ifc,"r")
    for i in fd:
        if not i.startswith("//"):#skip comment lines
            a.append(i.rstrip('\n'))
    return a

def rgb2html(col):
    """Converts a color: from (255,255,255) to #ffffff"""
    r,g,b = col
    return "#%x%x%x" % (r,g,b)

def html2rgb(col):
    """Converts a color: from #ffffff to (255,255,255)"""
    s=col.strip('#')
    r=int(s[:2],16)
    g=int(s[2:4],16)
    b=int(s[4:6],16)
    return r,g,b

def nextColor():
    """Gets next html color from color list"""
    col = nextColor.array[nextColor.counter]
    nextColor.counter +=1
    return col

def isNextColor():
    """Is there another color or list is over?"""
    return nextColor.counter<isNextColor.colorslenght

def isPageEnded(y,YSIZE):
    """Is there enough room to draw another square?"""
    return (y+100)>=YSIZE

def newPage(XSIZE,YSIZE):
    """Returns a new image"""
    return gimp.Image(XSIZE,YSIZE,RGB)      

def createImage(color,text):
    """Draws a square filled with color and white color text. It works!"""
    gimp.set_foreground((255,255,255))#text color
    gimp.set_background(color)        #background color
    image = gimp.Image(100,100,RGB)
    back = gimp.Layer(image,"font",100,100,RGB_IMAGE,100,NORMAL_MODE)   
    image.add_layer(back,1)
    back.fill(BACKGROUND_FILL)
    lay = back.copy()
    lay.name = "font"
    image.add_layer(lay,0)
    lay = pdb.gimp_text_fontname(image,None,2,100/4,text,2,True,18,PIXELS,"Sans")   
    image.merge_down(lay, NORMAL_MODE)
    image.flatten() 
    return image

def drawRect(image,x,y):
    """Here I'd like to copy the result of createImage at current x,y position of current image. It doesn't work!"""
    text  = nextColor()
    color = html2rgb(text)  
    img = createImage(color,text)
    drawable = pdb.gimp_image_active_drawable(image)    
    image.disable_undo()
    pdb.gimp_selection_none(image)
    pdb.gimp_image_select_rectangle(image, 2, x, y, 100, 100)   
    if pdb.gimp_edit_named_copy_visible(img, "buffer"):             
        floating_sel = pdb.gimp_edit_named_paste(drawable, "buffer", TRUE)
        pdb.gimp_selection_none(image)
        image.flatten() 
        gimp.Display(image)#to debug
        image.enable_undo()

def savePage(image,directory,filename):
    """Saves composed image to filename"""
    drawable = pdb.gimp_image_active_drawable(image)
    pdb.file_png_save(image, drawable, directory+"\\"+filename, filename, 0,9,1,0,0,1,1)


def draw(ifile,savedir,prefix):
    """Main method. it manage page's room, slicing it in several 100x100 squares"""
    YSIZE = 1000
    XSIZE = 1000
    x = y = pc = 0
    colorArray = readColors(ifile)
    nextColor.counter = 0
    nextColor.array = colorArray 
    isNextColor.colorslenght = len(colorArray)
    pdb.gimp_context_push()
    image = newPage(XSIZE,YSIZE)
    while(isNextColor()):
        drawRect(image,x,y)
        x += 100        # move to next column
        if x+100>=XSIZE:#move to next row
            x = 0
            y += 100
        if isPageEnded(y,YSIZE):
            savePage(image,savedir,prefix+str(pc)+".png")
            gimp.Display(image)#to debug
            pc += 1
            image = newPage(XSIZE,YSIZE)
            x = 0
            y = 0
    savePage(image,savedir,prefix+str(pc)+".png")#save last page
    pdb.gimp_context_pop()

ifc = '<path to color list file>\\colors.txt'
ofc = '<path to output directory>\\palette'
prefix = 'table' #prefix for each file(i.e.: table0.png, table1.png...)

draw(ifc,ofc,prefix) #main method call

我當前的問題是drawRect方法。 我無法復制在drawRect方法中較大圖像的坐標x，y處createImage方法返回的圖像。 在drawRect方法中，我嘗試使用gimp的“復制到選擇中”：選擇一個區域，然后粘貼從另一張圖像復制的內容。 但是我在圖層上遇到了麻煩，無法將圖像復制到正確的位置。

為了完整起見，這是ifc文件中的幾行：

#b6ffff
#f079f3
#9979f3
#79c2f3
#7a79f3
#79f380
#f3799a

在此先感謝您的幫助。

阿爾貝托

Answer 1

也許對其他人有用（它必須另存為“ draw-colors.py”並復制到GIMP 2 / lib / gimp / 2.0 / plug-ins文件夾中）：

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from gimpfu import *

def readColors(ifile):
    """Read colors from input file and return a python list with all them"""
    a = []
    fd = open(ifile,"r")
    for i in fd:
        if not i.startswith('//'):
            a.append(i)
    return a

def rgb2html(col):
    """Converts a color: from (255,255,255) to #ffffff"""
    r,g,b = col
    return "#%x%x%x" % (r,g,b)

def html2rgb(col):
    """Converts a color: from #ffffff to (255,255,255)"""
    s=col.strip('#')
    r=int(s[:2],16)
    g=int(s[2:4],16)
    b=int(s[4:6],16)
    return r,g,b

def nextColor():
    """Gets next html color from color list"""
    col = html2rgb(nextColor.array[nextColor.counter])
    nextColor.counter +=1
    return col

def isNextColor():  
    """Is there another color or list is over?"""
    return nextColor.counter<isNextColor.colorslenght

def isPageEnded(y,sizey):
    """Is there enough room to draw another square?"""
    return (y+100)>=sizey

def newPage(sizex,sizey):       
    """Returns a new image"""
    image = pdb.gimp_image_new(sizex, sizey, RGB)
    layer = pdb.gimp_layer_new(image, sizex, sizey, RGB, "layer", 0, 0)
    pdb.gimp_image_add_layer(image, layer, 0)
    drw = pdb.gimp_image_active_drawable(image)
    pdb.gimp_context_set_background((255,255,255))
    pdb.gimp_drawable_fill(drw, BACKGROUND_FILL)
    pdb.gimp_context_set_brush('Circle (01)')
    return image

def savePage(image,filename):
    """Saves composed image to filename"""
    layers = image.layers
    last_layer = len(layers)-1
    try:
        disable=pdb.gimp_image_undo_disable(image)
        pdb.gimp_layer_add_alpha(layers[0])
        pdb.plug_in_colortoalpha(image,image.active_layer,(0,0,0))
        layer = pdb.gimp_image_merge_visible_layers(image, 1)
        enable = pdb.gimp_image_undo_enable(image)
        pdb.file_png_save(image, image.active_layer, filename, filename, 0,9,1,0,0,1,1)
    except Exception as e:
        raise e

def drawRect(x,y,color,image):
    """draw a single square"""
    text = rgb2html(color)
    pdb.gimp_image_select_rectangle(image, 2, x, y, 100, 100)
    pdb.gimp_context_set_background(color)
    pdb.gimp_edit_fill(image.active_layer, 1)
    try:
        text_layer = pdb.gimp_text_fontname(image, None, x, y+(100/2), text, 2, 1, 18, 0, "Sans")
        pdb.gimp_image_merge_down(image, text_layer, 0)
    except Exception as e:
        raise e 

def draw(ifile,odir,prefix,sizex,sizey):
    """Main method. it manage page's room, slicing it in several 100x100 squares"""
    colorArray = readColors(ifile)  
    nextColor.counter = 0
    nextColor.array = colorArray
    isNextColor.colorslenght = len(colorArray)  
    pc = x = y = 0
    image = newPage(sizex,sizey)
    try:
        while(isNextColor()):
            pdb.gimp_context_push()
            drawRect(x,y,nextColor(),image)
            x += 100#cambia colonna
            if x+100>=sizex:#cambia riga
                x = 0
                y += 100
            if isPageEnded(y,sizey):#salva pagina
                savePage(image,odir+'\\'+prefix+str(pc)+".png")
                pc += 1
                image = newPage(sizex,sizey)
                x = y = 0
            savePage(image,odir+'\\'+prefix+str(pc)+".png")
            pdb.gimp_context_pop()
    except Exception as e:
        raise e

register(
    "draw-colors",
    N_("Create a color map from a text color file"),
    "Create a color map from a text color file",
    "Alberto",
    "@Copyright Alberto 2014",
    "2014/10/21",
    N_("Draw Colors..."),
    "",
    [
        (PF_FILE, "ifile", N_("Color input file:"), 'default\\input\\colorfile\\path\\colorlist.txt'),

        (PF_DIRNAME, "odir", N_("Path for png export:"), 'default\\output\\path'),
        (PF_STRING, "prefix",  N_("Filename prefix for export:"),  "table"),
        (PF_INT8, "sizex", N_("Image's x size:"), 1024),
        (PF_INT8, "sizey", N_("Image's y size:"), 1024)
    ],
    [],
    draw,  #main method call
    menu="<Image>/Filters/Alberto",
    domain=("gimp20-python", gimp.locale_directory)
    )

main()  

輸出示例：