instructions in manual mode

[imago.git] / src / manual.py

diff --git a/src/manual.py b/src/manual.py
index 4030104..b761f5e 100644 (file)
--- a/src/manual.py
+++ b/src/manual.py
@@ -1,8 +1,8 @@
 """Manual grid selection module"""
 
-import pygame
-import ImageDraw
 from math import sqrt, acos, copysign
+from PIL import ImageDraw
+import pygame
 
 from geometry import l2ad, line, intersection
 
@@ -22,19 +22,52 @@ class Screen:
         self._screen.blit(pg_img, (0, 0))
         pygame.display.flip()
 
+def dst((x1, y1), (x2, y2)):
+    return (x1 - x2) ** 2 + (y1 - y2) ** 2
+
+def display_instr():
+
+    while True:
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                pygame.quit()
+                raise UserQuitError 
+            if event.type == pygame.MOUSEBUTTONDOWN or event.type == pygame.KEYDOWN:
+                return 
+
 def find_lines(im_orig):
     # TODO rename, refactor, comment
 
     im = im_orig.copy()
 
-    screen = Screen(im.size)
+    screen = Screen((620, 350))
+
+    font = pygame.font.Font(None, 25)
+    instructions = ["Imago manual mode", "",   
+    "To set the grid position, click on the corners of the grid. Once you mark",
+    "all four corners, the grid will appear. To adjust it, just click on the new",
+    "position and the nearest corner will move there. Once you are content",
+    "with the alignment, press any key on your keyboard or close the window.",
+    "", "", "",
+    "Press any key to continue."]
+    y = 10
+    for i in instructions:
+        text1 = font.render(i, True, [128, 255, 128])
+        screen._screen.blit(text1, [10, y])
+        y += 25
+
+    pygame.display.flip()
+
+    display_instr()
+
+    pygame.display.set_mode(im.size)
 
     clock = pygame.time.Clock()
     draw = ImageDraw.Draw(im)
     hoshi = lambda c: draw.ellipse((c[0] - 1, c[1] - 1, c[0] + 1, c[1] + 1),
                  fill=(255, 64, 64))
     corners = []
-    color = (64, 64, 255)
+    color = (32, 255, 32)
     line_width = 1
     lines_r = []
 
@@ -47,29 +80,31 @@ def find_lines(im_orig):
                 else:
                     raise UserQuitError 
             if event.type == pygame.MOUSEBUTTONDOWN:
+                np = pygame.mouse.get_pos()
                 if len(corners) >= 4: 
-                    corners = []
+                    corners.sort(key=lambda p: dst(p, np))
+                    corners = corners[1:]
+                corners.append(np)
+                (x, y) = corners[-1]
+                draw.line((x-2, y, x + 2, y), fill=color)
+                draw.line((x, y+2, x, y-2), fill=color)
+                if len(corners) == 4:
                     im = im_orig.copy()
                     draw = ImageDraw.Draw(im)
-
-                if len(corners) < 4:
-                    corners.append(pygame.mouse.get_pos())
-                    draw.point(corners[:-1], fill=color)
-                    if len(corners) == 4:
-                        l_vert, l_hor = lines(corners)
-                        for l in l_vert:
-                            draw.line(l, fill=color, width=line_width)
-                        for l in l_hor:
-                            draw.line(l, fill=color, width=line_width)
-                        # TODO sort by distance
-                        l_vert.sort()
-                        l_hor.sort()
-                        for i in [3, 9, 15]:
-                            for j in [3, 9, 15]:
-                                hoshi(intersection(line(l_vert[i][0], l_vert[i][1]),
-                                                   line(l_hor[j][0], l_hor[j][1])))
-                        lines_r = [[l2ad(l, im.size) for l in l_vert], 
-                                   [l2ad(l, im.size) for l in l_hor]]
+                    l_vert, l_hor = lines(corners)
+                    for l in l_vert:
+                        draw.line(l, fill=color, width=line_width)
+                    for l in l_hor:
+                        draw.line(l, fill=color, width=line_width)
+                    # TODO sort by distance
+                    #l_vert.sort()
+                    #l_hor.sort()
+                    #for i in [3, 9, 15]:
+                    #    for j in [3, 9, 15]:
+                    #        hoshi(intersection(line(l_vert[i][0], l_vert[i][1]),
+                    #                           line(l_hor[j][0], l_hor[j][1])))
+                    lines_r = [[l2ad(l, im.size) for l in l_vert], 
+                               [l2ad(l, im.size) for l in l_hor]]
 
         screen.display_picture(im)
         clock.tick(15)