scripts/demo1.py

@@ -41,6 +41,7 @@ current_color = 0
 
 def draw_current_color():
 	hdc.text_color = color_list[current_color]
+	hdc.rop2 = upiwin.R2_COPYPEN
 	hdc.solid_rectangle(cmd2_rect[0] + 6, cmd2_rect[1] + 6, cmd2_rect[0] + 54, cmd2_rect[1] + 54)
 	
 def select_next_color():
@@ -50,24 +51,58 @@ def select_next_color():
 		current_color = 0
 	draw_current_color()
 
+# --- Object drawing ---
+
+def draw_freehand(color, data):
+	hdc.text_color = color
+	hdc.rop2 = upiwin.R2_COPYPEN
+	hdc.move_to(data[0][0], data[0][1])
+	for pt in data[1:len(data) - 1]:
+		hdc.line_to(pt[0], pt[1])
+		
+def draw_line(color, data):
+	hdc.text_color = color
+	hdc.rop2 = upiwin.R2_COPYPEN
+	hdc.move_to(data[0][0], data[0][1])
+	hdc.line_to(data[1][0], data[1][1])
+	
+def draw_rectangle(color, data):
+	hdc.text_color = color
+	hdc.rop2 = upiwin.R2_COPYPEN
+	hdc.rectangle(data[0], data[1], data[2], data[3])
+
+def draw_filled_rectangle(color, data):
+	hdc.text_color = color
+	hdc.rop2 = upiwin.R2_COPYPEN
+	hdc.solid_rectangle(data[0], data[1], data[2], data[3])
+	
+def draw_object(obj):
+	obj['draw'](obj['color'], obj['data'])
+
+# --- Master object list ---
+
+objects_drawn = []
+
 # --- Graphic feedback --
 
 origin_x = 0
 origin_y = 0
 current_x = 0
 current_y = 0
+freehand_points = []
 
 def freehand_draw(x, y, down, up):
-	global current_x, current_y
+	global current_x, current_y, freehand_points
 	if down:
-		current_x = origin_x
-		current_y = origin_y
+		freehand_points = []
 	else:
 		hdc.text_color = color_list[current_color]
+		hdc.rop2 = upiwin.R2_COPYPEN
 		hdc.move_to(current_x, current_y)
 		hdc.line_to(x, y)
 	current_x = x
 	current_y = y
+	freehand_points += [(x, y)]
 
 def rubberband_rectangle(x, y, down, up):
 	global current_x, current_y
@@ -95,11 +130,25 @@ def rubberband_line(x, y, down, up):
 
 # --- Tool definitions ---
 
+def save_freehand():
+	return { 'draw': draw_freehand, 'color': color_list[current_color], 'data': freehand_points }
+	
+def save_line():
+	return { 'draw': draw_line, 'color': color_list[current_color], 'data': [(origin_x, origin_y), (current_x, current_y)] }
+	
+def save_rectangle():
+	return { 'draw': draw_rectangle, 'color': color_list[current_color],
+			 'data': (min(origin_x, current_x), min(origin_y, current_y), max(origin_x, current_x), max(origin_y, current_y)) }
+
+def save_filled_rectangle():
+	return { 'draw': draw_filled_rectangle, 'color': color_list[current_color],
+			 'data': (min(origin_x, current_x), min(origin_y, current_y), max(origin_x, current_x), max(origin_y, current_y)) }
+
 tool_list = [
-	{ 'icon': bmp_freehand, 'feedback': freehand_draw },
-	{ 'icon': bmp_line, 'feedback': rubberband_line },
-	{ 'icon': bmp_rect, 'feedback': rubberband_rectangle },
-	{ 'icon': bmp_fillrect, 'feedback': rubberband_rectangle }
+	{ 'icon': bmp_freehand, 'feedback': freehand_draw, 'save': save_freehand, 'dodraw': False },
+	{ 'icon': bmp_line, 'feedback': rubberband_line, 'save': save_line, 'dodraw': True },
+	{ 'icon': bmp_rect, 'feedback': rubberband_rectangle, 'save': save_rectangle, 'dodraw': True },
+	{ 'icon': bmp_fillrect, 'feedback': rubberband_rectangle, 'save': save_filled_rectangle, 'dodraw': True }
 	]
 
 current_tool = 0
@@ -129,8 +178,13 @@ def on_touchmove(x, y):
 		tool_list[current_tool]['feedback'](x, y, False, False)
 		
 def on_touchup(x, y):
+	global objects_drawn
 	if point_in_rect(drawing_rect, x, y):
 		tool_list[current_tool]['feedback'](x, y, False, True)
+		object = tool_list[current_tool]['save']()
+		if tool_list[current_tool]['dodraw']:
+			draw_object(object)
+		objects_drawn += [object]
 
 def on_touchclick(x, y):
 	if point_in_rect(cmd1_rect, x, y):
@@ -150,6 +204,7 @@ def on_button_click(button):
 
 # Draw the basic layout.
 hdc.text_color = LTGRAY
+hdc.rop2 = upiwin.R2_COPYPEN
 hdc.rectangle(cmd1_rect[0], cmd1_rect[1], cmd1_rect[2], cmd1_rect[3])
 hdc.rectangle(cmd2_rect[0], cmd2_rect[1], cmd2_rect[2], cmd2_rect[3])
 hdc.rectangle(cmd3_rect[0], cmd3_rect[1], cmd3_rect[2], cmd3_rect[3])