fix colours in Page drawing

CHANGELOG.txt

@@ -1,3 +1,5 @@
+0.8.2
+    - fix background colour in Page drawing
 0.8.1
     - clean up
 0.8.0

gfxlcd/abstract/chip.py

@@ -41,6 +41,9 @@ class Chip(metaclass=abc.ABCMeta):
     @color.setter
     def color(self, rgb):
         """set (R, G, B) colour """
+        if isinstance(rgb, int):
+            self.options['color'] = rgb
+        else:
             self.options['color'] = {
                 'R': rgb[0], 'G': rgb[1], 'B': rgb[2]
             }
@@ -53,6 +56,9 @@ class Chip(metaclass=abc.ABCMeta):
     @background_color.setter
     def background_color(self, rgb):
         """set (R, G, B) background colour """
+        if isinstance(rgb, int):
+            self.options['background_color'] = rgb
+        else:
             self.options['background_color'] = {
                 'R': rgb[0], 'G': rgb[1], 'B': rgb[2]
             }

gfxlcd/demos/nju_hd44780.py

@@ -16,7 +16,8 @@ def test1():
     print(drv.width, drv.height)
     lcd = CharLCD(drv.width, drv.height, drv, 0, 0)
     lcd.init()
-    lcd.write('First')
+    lcd.write('First Line')
+    lcd.write(' it is not', 0, 0)
 
     lcd.write('HD44780', 6, 3)
     lcd.flush()

gfxlcd/drawing/page.py

@@ -9,6 +9,8 @@ class Page(Pixel, metaclass=abc.ABCMeta):
         self.driver = driver
         Pixel.__init__(self, driver)
         self.buffer = []
+        self.options['color'] = 1
+        self.options['background_color'] = 0
 
     def init(self):
         """init page"""
@@ -17,11 +19,21 @@ class Page(Pixel, metaclass=abc.ABCMeta):
         else:
             self.buffer = [[0] * (self.width // 8) for x in range(self.height)]
 
+    def _convert_color(self, color):
+        """convert color to available one"""
+        if color == 0:
+            return 0
+
+        return 1
+
     def draw_pixel(self, pos_x, pos_y, color=None):
         """draw a pixel at x,y"""
         if color is None:
             color = self.options['color']
-        self.buffer[pos_x][pos_y//8] |= self._convert_color(color) << (pos_y % 8)
+        if self._convert_color(color) == 1:
+            self.buffer[pos_x][pos_y//8] |= 1 << (pos_y % 8)
+        else:
+            self.buffer[pos_x][pos_y//8] &= ~(1 << (pos_y % 8))
         self.flush()
 
     def draw_line(self, pos_x1, pos_y1, pos_x2, pos_y2):

gfxlcd/driver/nju6450/nju6450.py

@@ -35,13 +35,6 @@ class NJU6450(Page, Chip):
             self.driver.cmd(0xB8 | pos_y, 1)
             self.driver.cmd(0x00 | (pos_x - width//2), 1)
 
-    def _convert_color(self, color):
-        """convert color to avaiable one"""
-        if color['R'] == 0 and color['G'] == 0 and color['B'] == 0:
-            return 0
-
-        return 1
-
     def flush(self, force=None):
         """flush buffer to device
         :force - boolean|None"""

gfxlcd/driver/null/null_page.py

@@ -22,13 +22,6 @@ class NullPage(Page, Chip):
         Page.init(self)
         Chip.init(self)
 
-    def _convert_color(self, color):
-        """convert color to avaiable one"""
-        if color['R'] == 0 and color['G'] == 0 and color['B'] == 0:
-            return 0
-
-        return 1
-
     def flush(self, force=None):
         """flush buffer to device
         :force - boolean|None"""

gfxlcd/driver/ssd1306/ssd1306.py

@@ -76,13 +76,6 @@ class SSD1306(Page, Chip):
         self.driver.cmd(0x14)  # enable charge pump
         self.driver.cmd(0xaf)  # turn on panel
 
-    def _convert_color(self, color):
-        """convert color to avaiable one"""
-        if color['R'] == 0 and color['G'] == 0 and color['B'] == 0:
-            return 0
-
-        return 1
-
     def flush(self, force=None):
         """flush buffer to device
         :force - boolean|None"""

gfxlcd/tests/test_page_drawing.py

@@ -216,6 +216,17 @@ class TestPageDrawing(object):
         buffer[5][1] = 8
         assert_equal(self.lcd.buffer, buffer)
 
+    def test_draw_pixels_clear_then(self):
+        self.lcd.draw_pixel(1, 1)
+        self.lcd.draw_pixel(2, 1)
+        self.lcd.draw_pixel(2, 2)
+        buffer = self.get_buffer()
+        buffer[2][0] = 4
+        self.lcd.draw_pixel(1, 1, self.lcd.background_color)
+        self.lcd.draw_pixel(2, 1, self.lcd.background_color)
+        self.draw_buffer(self.lcd.buffer)
+        assert_equal(self.lcd.buffer, buffer)
+
     def draw_buffer(self, buffer):
         for page in range(2):
             print(page)

setup.cfg

@@ -1,4 +1,4 @@
 [bdist_wheel]
-universal = 1
+universal = 0
 [metadata]
 description-file = readme.md

setup.py

@@ -13,7 +13,7 @@ def read(*paths):
 
 setup(
     name='gfxlcd',
-    version='0.8.1',
+    version='0.8.2',
     description='gfxlcd is a handler for graphical lcds: ILI9328, SSD1306, NJU6450, touch panel: AD7843 @ Raspberry Pi.',
     keywords=[
         'gfxlcd', 'raspberry pi' ,'ili9328' ,'ssd1306', 'nju6450', 'lcd', 'graphical lcd', 'touch panel', 'ad7843',

tests3

@@ -1,2 +1,2 @@
 chmod 644 gfxlcd/tests/*.py
-python3 -m nose --with-specplugin
+python3 -m nose --with-specplugin $1