Kivy/Android

- refactoring

pysollib/images.py

@@ -91,12 +91,7 @@ class Images:
         except Exception:
             return None
 
-        if TOOLKIT == 'kivy':
-            w = img.texture.size[0]
-            h = img.texture.size[1]
-        else:
-            w, h = img.width(), img.height()
-
+        w, h = img.width(), img.height()
         if self.CARDW < 0:
             self.CARDW, self.CARDH = w, h
         else:

pysollib/kivy/LApp.py

@@ -270,6 +270,25 @@ def LColorToLuminance(color):
 # =============================================================================
 
 
+def LTextureToLuminance(texture):
+    b = texture.pixels
+    s = 4
+    n = len(b)/1000
+    if n > 4:
+        s = n - n % 4
+    n = 0
+    ll = 0
+    for i in range(0, len(b), int(s)):
+        rr = int.from_bytes(b[i:i+1], byteorder='big', signed=False) / 256.0  # noqa
+        gg = int.from_bytes(b[i+1:i+2], byteorder='big', signed=False) / 256.0  # noqa
+        bb = int.from_bytes(b[i+2:i+3], byteorder='big', signed=False) / 256.0  # noqa
+        ll = ll + LColorToLuminance([rr, gg, bb, 1])
+        n += 1
+    return (ll/n)
+
+# =============================================================================
+
+
 def LColorToKivy(outline):
     if (outline[0] == '#'):
         outline = outline[1:]

pysollib/kivy/LImage.py

@@ -20,7 +20,6 @@ from kivy.properties import StringProperty
 from kivy.uix.image import Image as KivyImage
 from kivy.uix.widget import Widget
 
-from pysollib.kivy.LApp import LColorToLuminance
 from pysollib.kivy.LBase import LBase
 
 # =============================================================================
@@ -222,20 +221,4 @@ class LImage(Widget, LBase):
     def subsample(self, r):
         return LImage(texture=self.texture)
 
-    def luminance(self):
-        b = self.texture.pixels
-        s = 4
-        n = len(b)/1000
-        if n > 4:
-            s = n - n % 4
-        n = 0
-        ll = 0
-        for i in range(0, len(b), int(s)):
-            rr = int.from_bytes(b[i:i+1], byteorder='big', signed=False) / 256.0  # noqa
-            gg = int.from_bytes(b[i+1:i+2], byteorder='big', signed=False) / 256.0  # noqa
-            bb = int.from_bytes(b[i+2:i+3], byteorder='big', signed=False) / 256.0  # noqa
-            ll = ll + LColorToLuminance([rr, gg, bb, 1])
-            n += 1
-        return (ll/n)
-
 # =============================================================================

pysollib/kivy/tkcanvas.py

@@ -35,7 +35,6 @@ from kivy.uix.anchorlayout import AnchorLayout
 
 from pysollib.kivy.LApp import LAnimationManager
 from pysollib.kivy.LApp import LColorToKivy
-from pysollib.kivy.LApp import LColorToLuminance
 from pysollib.kivy.LApp import LImageItem
 from pysollib.kivy.LApp import LLine
 from pysollib.kivy.LApp import LRectangle
@@ -856,8 +855,10 @@ class MfxCanvas(LImage):
         # color. We do not support that. Instead of this wie examine
         # the background and set the color accordingly.
         if self._bg_img is not None:
-            lumi = self._bg_img.luminance()
+            from pysollib.kivy.LApp import LTextureToLuminance
+            lumi = LTextureToLuminance(self._bg_img.texture)
         else:
+            from pysollib.kivy.LApp import LColorToLuminance
             lumi = LColorToLuminance(self._bg_color)
 
         self._text_color = ("#000000", "#ffffff")[lumi < 0.4]
@@ -868,7 +869,8 @@ class MfxCanvas(LImage):
         # print('setTile: %s, %s, %s' % (image, stretch, save_aspect))
         if image:
             try:
-                self._bg_img = LImage(source=image)
+                from pysollib.kivy.tkutil import LImageInfo
+                self._bg_img = LImageInfo(image)
                 self._stretch_bg_image = stretch
                 self._save_aspect_bg_image = save_aspect
                 self.update_widget(self.pos, self.size)

pysollib/kivy/tkutil.py

@@ -37,7 +37,6 @@ from kivy.core.text import Label as CoreLabel
 from kivy.graphics.texture import Texture
 
 from pysollib.kivy.LApp import LTopLevel0
-from pysollib.kivy.LImage import LImage
 
 # ************************************************************************
 # * window manager util
@@ -216,39 +215,64 @@ def after_cancel(t):
 # ************************************************************************
 # * image handling
 # ************************************************************************
+# Wrappers
+
+LCoreImage = CoreImage  # noqa
+
+class LImageInfo(object):   # noqa
+    def __init__(self, arg):
+        if type(arg) is Texture:
+            self.filename = None
+            self.source = None
+            self.texture = arg
+            self.size = self.texture.size
+        if type(arg) is str:
+            self.filename = arg
+            self.source = arg
+            self.texture = LCoreImage(arg).texture
+            self.size = self.texture.size
+
+    # pysol core needs that:
+
+    def subsample(self, image):
+        return self
+
+    def width(self):
+        return self.size[0]
+
+    def height(self):
+        return self.size[1]
+
+    def getWidth(self):
+        return self.size[0]
+
+    def getHeight(self):
+        return self.size[1]
+
+# ************************************************************************
+# Interface to core.
 
 
 def makeImage(file=None, data=None, dither=None, alpha=None):
-    kw = {}
     if data is None:
         assert file is not None
-        kw["source"] = file
-        # print('makeImage: source = %s' % file)
-        # if (file=='/home/lb/PRG/Python/Kivy/pysolfc/data/images/redeal.gif'):
-        #    y = self.yy
+        return LImageInfo(file)
     else:
         assert data is not None
-        kw["texture"] = data
-        # ob das geht ?? - kommt das vor ?
-        # yy = self.yy
-    '''
-    if 'source' in kw:
-        logging.info ("makeImage: " + kw["source"])
-    if 'texture' in kw:
-        logging.info ("makeImage: " + str(kw["texture"]))
-    '''
+        return LImageInfo(data)
 
-    return LImage(**kw)
-
-
-loadImage = makeImage
+loadImage = makeImage   # noqa - sorry flake8, aber das gehört zu oben dazu!
 
 
 def copyImage(image, x, y, width, height):
 
-    # return Image(source=image.source)
-    # return Image(texture=image.texture)
-    return image
+    # wird das überhaupt aufgerufen - ja bei SubSampleImage.
+    # aber: wo wird das gebraucht? - oder ist es eine altlast
+    # welche gar keine Relevanz mehr hat ? (Kann auch None
+    # zurückgeben, ohne dass etwas fehlt oder abstürzt).
+
+    tregion = image.texture.get_region(x, y, width, height)
+    return LImageInfo(tregion)
 
 
 def fillTexture(texture, fill, outline=None, owidth=1):
@@ -337,14 +361,16 @@ def createImage(width, height, fill, outline=None, outwidth=1):
 
     texture = Texture.create(size=(width, height), colorfmt='rgba')
     fillTexture(texture, fill, outline, outwidth)
-    image = LImage(texture=texture)
-    # logging.info("createImage: LImage create %s" % image)
+    image = LImageInfo(texture)
+    # logging.info("createImage: LImageInfo create %s" % image)
     return image
 
 
 def createImagePIL(width, height, fill, outline=None, outwidth=1):
     # Is this needed for Kivy?
     createImage(width, height, fill, outline=outline, outwidth=outwidth)
+    # wird nur mit USE_PIL benutzt: nicht relevant. Der code wird mit
+    # Kivy nie durchlaufen.
 
 
 def shadowImage(image, color='#3896f8', factor=0.3):
@@ -488,15 +514,14 @@ def createBottom(image, color='white', backfile=None):
 
     tmp0 = _createImageMask(image.texture, color)
     if backfile:
-        tmp1 = CoreImage(backfile)
+        tmp1 = LCoreImage(backfile)
         txtre = _scaleTextureToSize(tmp1.texture, image.texture.size)
         tmp = _pasteTextureTo(txtre, tmp0)
     else:
         tmp = tmp0
 
-    img = LImage(texture=tmp)
-    img.size[0] = image.getWidth()
-    img.size[1] = image.getHeight()
+    img = LImageInfo(tmp)
+    img.size = (image.getWidth(), image.getHeight())
     return img
     '''
     im = image._pil_image