[ctrl tooltips #46] display a hexa color code under the color name

src/tools/classic_tools/tool_picker.py

@@ -18,7 +18,8 @@
 from gi.repository import Gdk
 from .abstract_classic_tool import AbstractClassicTool
 from .utilities_colors import utilities_get_rgba_name, \
-                              utilities_gdk_rgba_from_xy
+                              utilities_gdk_rgba_from_xy, \
+                              utilities_gdk_rgba_to_hexadecimal
 
 class ToolPicker(AbstractClassicTool):
 	__gtype_name__ = 'ToolPicker'
@@ -36,7 +37,9 @@ def get_tooltip(self, event_x, event_y, motion_behavior):
 		color = utilities_gdk_rgba_from_xy(self.get_surface(), event_x, event_y)
 		if color is None:
 			return None
-		return utilities_get_rgba_name(color)
+		color_name = utilities_get_rgba_name(color)
+		color_code = utilities_gdk_rgba_to_hexadecimal(color)
+		return color_name + "\n" + color_code
 
 	def on_release_on_area(self, event, surface, event_x, event_y):
 		color = utilities_gdk_rgba_from_xy(surface, event_x, event_y)

src/tools/selection_tools/select_color.py

@@ -17,7 +17,8 @@
 
 from .abstract_select import AbstractSelectionTool
 from .utilities_colors import utilities_get_rgba_name, \
-                              utilities_gdk_rgba_from_xy
+                              utilities_gdk_rgba_from_xy, \
+                              utilities_gdk_rgba_to_hexadecimal
 from .utilities_paths import utilities_get_magic_path
 
 class ToolColorSelect(AbstractSelectionTool):
@@ -33,7 +34,9 @@ def get_tooltip(self, event_x, event_y, motion_behavior):
 		color = utilities_gdk_rgba_from_xy(self.get_surface(), event_x, event_y)
 		if color is None:
 			return None
-		return utilities_get_rgba_name(color)
+		color_name = utilities_get_rgba_name(color)
+		color_code = utilities_gdk_rgba_to_hexadecimal(color)
+		return color_name + "\n" + color_code
 
 	def press_define(self, event_x, event_y):
 		pass

src/utilities/utilities_colors.py

@@ -45,6 +45,17 @@ def utilities_rgb_to_hexadecimal(r, g, b):
 	operators."""
 	return (r << 16) + (g << 8) + b
 
+def utilities_gdk_rgba_to_hexadecimal(gdk_rgba):
+	"""Returns a displayable string of the hexadecimal code corresponding to a
+	Gdk.RGBA object."""
+	r = int(255 * gdk_rgba.red)
+	g = int(255 * gdk_rgba.green)
+	b = int(255 * gdk_rgba.blue)
+	hexa_raw = hex(utilities_rgb_to_hexadecimal(r, g, b))
+	hexa_string = str(hexa_raw)[2:]
+	hexa_string = "0" * (6 - len(hexa_string)) + hexa_string
+	return "#" + hexa_string
+
 ################################################################################
 
 def utilities_gdk_rgba_from_xy(surface, event_x, event_y):