Use the same line dimensions as the profile, on the planner.

The Planner should be 'almost' like the profile, with the possibility
to use the mouse and keyboard to input a new plan, so this is a bit
of 'getting there.' I don't like too much code duplication but since
the current Profile Graphics is a crude cut-and-paste from the old
Cairo backend, it's easyer to start from scratch and have it well
organized as Qt code.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

qt-ui/graphicsview-common.cpp

@@ -55,3 +55,8 @@ void fill_profile_color()
 	profile_color[CALC_CEILING_DEEP]    = COLOR(APPLE1_HIGH_TRANS, BLACK1_HIGH_TRANS, APPLE1_HIGH_TRANS);
 	#undef COLOR
 }
+
+QColor getColor(const color_indice_t i, bool isGrayscale = false)
+{
+	return profile_color[i].at((isGrayscale) ? 1 : 0);
+}