From 2180baaec58a4b1bc7e2e3d94493c41499778f15 Mon Sep 17 00:00:00 2001
From: nathalia <you@yourdomain.example.com>
Date: Mon, 13 Aug 2007 20:18:38 +0000
Subject: add regular polygon and rearranging functions

---
diff --git a/Area.py b/Area.py
index 3c36e1f..751a89d 100644..100755
--- a/Area.py
+++ b/Area.py
@@ -116,6 +116,7 @@ class Area(gtk.DrawingArea):
         self.newy_ = 0
         self.color_dec = 0
         self.polygon_start = True
+        self.points = []
         self.gc = None
         self.gc_line = None
         self.gc_eraser = None
@@ -307,27 +308,32 @@ class Area(gtk.DrawingArea):
                 #polygon    
                 elif self.tool == 'polygon':
                     self.configure_line(self.line_size)
-                    self.d.polygon(widget, coords)  
+                    self.d.polygon(widget,coords,True,False)
                 #triangle
                 elif self.tool == 'triangle':
                     self.configure_line(self.line_size)
-                    self.d.triangle(widget,coords)
+                    self.d.triangle(widget,coords,True)
                 #trapezoid
                 elif self.tool == 'trapezoid':
                     self.configure_line(self.line_size)
-                    self.d.trapezoid(widget,coords)
+                    self.d.trapezoid(widget,coords,True)
                 #arrow
                 elif self.tool == 'arrow':
                     self.configure_line(self.line_size)
-                    self.d.arrow(widget,coords)
+                    self.d.arrow(widget,coords,True)
                 #parallelogram
                 elif self.tool == 'parallelogram':
                     self.configure_line(self.line_size)
-                    self.d.parallelogram(widget,coords)
+                    self.d.parallelogram(widget,coords,True)
                 #star
                 elif self.tool == 'star':
                     self.configure_line(self.line_size)
-                    self.d.star(widget,coords)
+                    self.d.star(widget,coords,True)
+                #polygon regular
+                elif self.tool == 'polygon_regular':
+                    self.configure_line(self.line_size)
+                    n = 7
+                    self.d.polygon_regular(widget,coords,n,True)
 
     def mouseup(self,widget,event): 
         """Make the Area object (GtkDrawingArea) recognize that the mouse was released.
@@ -338,6 +344,7 @@ class Area(gtk.DrawingArea):
         event -- GdkEvent
 
         """
+        coords = int(event.x), int(event.y)
         if self.desenha == True:
             # line
             if self.tool == 'line':
@@ -374,70 +381,43 @@ class Area(gtk.DrawingArea):
                     self.oldx = event.x
                     self.oldy = event.y
                     self.enableUndo(widget)
-                # polygon
+            # polygon
             elif self.tool == 'polygon':
-                if self.polygon_start:
-                    self.enableUndo(widget)
-                    self.pixmap.draw_line(self.gc_line,self.oldx,self.oldy, int (event.x), int( event.y ))
-                    self.lastx = event.x
-                    self.lasty = event.y
-                    self.firstx = self.oldx
-                    self.firsty = self.oldy
-                    self.polygon_start = False
-                else:
-                    self.dx = math.fabs(event.x - self.firstx)
-                    self.dy = math.fabs(event.y - self.firsty)
-                    if (self.dx < 20) & (self.dy < 20):
-                        self.pixmap.draw_line(self.gc_line,int (self.firstx), int (self.firsty), int (self.lastx), int (self.lasty))
-                        self.polygon_start = True
-                        self.undo_times -= 1#destroy the undo screen of polygon start 
-                        self.enableUndo(widget)
-                    else:   
-                        self.pixmap.draw_line(self.gc_line,int (self.lastx),int (self.lasty), int (event.x), int( event.y ))
-                    self.lastx = event.x
-                    self.lasty = event.y
-                widget.queue_draw() 
-
-            elif self.tool == 'pencil': #to undo pencil
+                self.d.polygon(widget, coords, False, False)
+            #to undo pencil
+            elif self.tool == 'pencil':
                 widget.queue_draw() 
                 self.enableUndo(widget)
-
             #bucket
             elif self.tool == 'bucket':
-            # New algorithm. See Desenho.py
                 width, height = self.window.get_size()
                 fill(self.pixmap, self.gc, int(event.x), int(event.y), width, height, self.color_dec)
                 widget.queue_draw()
                 self.enableUndo(widget)
-                
+            #triangle
             elif self.tool == 'triangle':
-                self.pixmap.draw_polygon(self.gc, True, self.d.points)
-                self.pixmap.draw_polygon(self.gc_line, False, self.d.points)
-                widget.queue_draw()
+                self.d.triangle(widget,coords,False)
                 self.enableUndo(widget)
-
+            #trapezoid
             elif self.tool == 'trapezoid':
-                self.pixmap.draw_polygon(self.gc, True, self.d.points)
-                self.pixmap.draw_polygon(self.gc_line, False, self.d.points)
-                widget.queue_draw()
+                self.d.trapezoid(widget,coords,False)
                 self.enableUndo(widget)
-
+            #arrow
             elif self.tool == 'arrow':
-                self.pixmap.draw_polygon(self.gc, True, self.d.points)
-                self.pixmap.draw_polygon(self.gc_line, False, self.d.points)
-                widget.queue_draw()
+                self.d.arrow(widget,coords,False)
                 self.enableUndo(widget)
-
+            #parallelogram
             elif self.tool == 'parallelogram':
-                self.pixmap.draw_polygon(self.gc, True, self.d.points)
-                self.pixmap.draw_polygon(self.gc_line, False, self.d.points)
-                widget.queue_draw()
+                self.d.parallelogram(widget,coords,False)
                 self.enableUndo(widget)
-
+            #star
             elif self.tool == 'star':
-                self.pixmap.draw_polygon(self.gc, True, self.d.points)
-                self.pixmap.draw_polygon(self.gc_line, False, self.d.points)
-                widget.queue_draw()
+                self.d.star(widget,coords,False)
+                self.enableUndo(widget)
+            #polygon regular
+            elif self.tool == 'polygon_regular':
+                n = 7
+                self.d.polygon_regular(widget,coords,n,False)
                 self.enableUndo(widget)
 
         if self.tool == 'brush' or self.tool == 'eraser':
diff --git a/Desenho.py b/Desenho.py
index fe468fc..1049e27 100644..100755
--- a/Desenho.py
+++ b/Desenho.py
@@ -184,7 +184,7 @@ class Desenho:
         self.d.pixmap_temp.draw_rectangle(self.d.gc_line, False ,self.d.newx,self.d.newy,self.d.newx_,self.d.newy_)
 
     
-    def triangle(self, widget, coords):
+    def triangle(self, widget, coords, temp):
         """Draw a triangle.
 
         Keyword arguments:
@@ -193,30 +193,21 @@ class Desenho:
         coords -- Two value tuple
 
         """
-        widget.queue_draw()     
 
-        if coords[0] > WIDTH:
-            coords0 = WIDTH
+        if temp == True:
+            pixmap = self.d.pixmap_temp
         else:
-            coords0 = coords[0]
-            
-        if coords [1] > HEIGHT:
-            coords1 = HEIGHT
-        else:
-            coords1 = coords[1]
-
-        if coords0 < 0:
-            coords0 = 0
-
-        if coords1 < 0:
-            coords1 = 0
+            pixmap = self.d.pixmap
+        width, height = self.d.window.get_size()
+        
+        points = [(self.d.oldx,self.d.oldy), (self.d.oldx+int((coords[0]-self.d.oldx)/2),coords[1]), (coords[0],self.d.oldy)]
+        pixmap.draw_drawable(self.d.gc, self.d.pixmap, 0, 0, 0, 0, width, height)
+        pixmap.draw_polygon(self.d.gc, True, points)
+        pixmap.draw_polygon(self.d.gc_line, False, points)
+        widget.queue_draw()
 
-        self.points = [(self.d.oldx, self.d.oldy), (self.d.oldx+int((coords0-self.d.oldx)/2), coords1), (coords0,self.d.oldy)]                
-        self.d.pixmap_temp.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 ,0,0, WIDTH, HEIGHT)
-        self.d.pixmap_temp.draw_polygon(self.d.gc, True, self.points)
-        self.d.pixmap_temp.draw_polygon(self.d.gc_line, False, self.points)
 
-    def trapezoid(self, widget, coords):
+    def trapezoid(self, widget, coords, temp):
         """Draw a trapezoid.
 
         Keyword arguments:
@@ -225,31 +216,22 @@ class Desenho:
         coords -- Two value tuple
 
         """
-        widget.queue_draw()     
 
-        if coords[0] > WIDTH:
-            coords0 = WIDTH
+        if temp == True:
+            pixmap = self.d.pixmap_temp
         else:
-            coords0 = coords[0]
-            
-        if coords[1] > HEIGHT:
-            coords1 = HEIGHT
-        else:
-            coords1 = coords[1]
-
-        if coords0 < 0:
-            coords0 = 0
-
-        if coords1 < 0:
-            coords1 = 0
-
-        dif = int((coords0 - self.d.oldx)/4)
-        self.points = [(self.d.oldx, self.d.oldy), (self.d.oldx+dif, coords1), (coords0-dif, coords1) , (coords0,self.d.oldy)]                
-        self.d.pixmap_temp.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 ,0,0, WIDTH, HEIGHT)
-        self.d.pixmap_temp.draw_polygon(self.d.gc, True, self.points)
-        self.d.pixmap_temp.draw_polygon(self.d.gc_line, False, self.points)
+            pixmap = self.d.pixmap
+        width, height = self.d.window.get_size()
 
-    def arrow(self, widget, coords):
+        dif = int((coords[0] - self.d.oldx)/4)
+        points = [(self.d.oldx, self.d.oldy), (self.d.oldx+dif, coords[1]), (coords[0]-dif, coords[1]) , (coords[0],self.d.oldy)]                
+        pixmap.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 , 0, 0, width, height)
+        pixmap.draw_polygon(self.d.gc, True, points)
+        pixmap.draw_polygon(self.d.gc_line, False, points)
+        widget.queue_draw()
+        
+        
+    def arrow(self, widget, coords, temp):
         """Draw a arrow.
 
         Keyword arguments:
@@ -258,31 +240,28 @@ class Desenho:
         coords -- Two value tuple
 
         """
-        widget.queue_draw()     
-
-        if coords[0] > WIDTH:
-            coords0 = WIDTH
+        if temp == True:
+            pixmap = self.d.pixmap_temp
         else:
-            coords0 = coords[0]
-            
-        if coords [1] > HEIGHT:
-            coords1 = HEIGHT
-        else:
-            coords1 = coords[1]
-
-        if coords0 < 0:
-            coords0 = 0
-
-        if coords1 < 0:
-            coords1 = 0
-        self.width = coords0 - self.d.oldx
-        self.height = coords1 - self.d.oldy
-        self.points = [(self.d.oldx,self.d.oldy), (self.d.oldx+int(self.width/6),coords1), (self.d.oldx+int(self.width/6),self.d.oldy+int(self.height/3)), (coords0,self.d.oldy+int(self.height/3)), (coords0,self.d.oldy-int(self.height/3)), (self.d.oldx+int(self.width/6),self.d.oldy-int(self.height/3)), (self.d.oldx+int(self.width/6),self.d.oldy-self.height)]
-        self.d.pixmap_temp.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 ,0,0, WIDTH, HEIGHT)
-        self.d.pixmap_temp.draw_polygon(self.d.gc, True, self.points)
-        self.d.pixmap_temp.draw_polygon(self.d.gc_line, False, self.points)
+            pixmap = self.d.pixmap
+        width, height = self.d.window.get_size()
 
-    def parallelogram(self, widget, coords):
+        x = coords[0] - self.d.oldx
+        y = coords[1] - self.d.oldy
+        points = [(self.d.oldx,self.d.oldy),\
+(self.d.oldx+int(x/6),self.d.oldy+y),\
+(self.d.oldx+int(x/6),self.d.oldy+int(y/3)),\
+(self.d.oldx+x,self.d.oldy+int(y/3)),\
+(self.d.oldx+x,self.d.oldy-int(y/3)),\
+(self.d.oldx+int(x/6),self.d.oldy-int(y/3)),\
+(self.d.oldx+int(x/6),self.d.oldy-y)]
+        pixmap.draw_drawable(self.d.gc,self.d.pixmap, 0, 0, 0, 0, width, height)
+        pixmap.draw_polygon(self.d.gc, True, points)
+        pixmap.draw_polygon(self.d.gc_line, False, points)
+        widget.queue_draw()
+        
+        
+    def parallelogram(self, widget, coords, temp):
         """Draw a parallelogram.
 
         Keyword arguments:
@@ -291,31 +270,21 @@ class Desenho:
         coords -- Two value tuple
 
         """
-        widget.queue_draw()     
-
-        if coords[0] > WIDTH:
-            coords0 = WIDTH
+        if temp == True:
+            pixmap = self.d.pixmap_temp
         else:
-            coords0 = coords[0]
-            
-        if coords[1] > HEIGHT:
-            coords1 = HEIGHT
-        else:
-            coords1 = coords[1]
-
-        if coords0 < 0:
-            coords0 = 0
+            pixmap = self.d.pixmap
+        width, height = self.d.window.get_size()
 
-        if coords1 < 0:
-            coords1 = 0
+        x = int((coords[0] - self.d.oldx)/4)
+        points = [(self.d.oldx,self.d.oldy), (coords[0]-x, self.d.oldy), (coords[0],coords[1]), (self.d.oldx+x,coords[1])]
+        pixmap.draw_drawable(self.d.gc,self.d.pixmap,0,0,0,0,width,height)
+        pixmap.draw_polygon(self.d.gc, True, points)
+        pixmap.draw_polygon(self.d.gc_line, False, points)
+        widget.queue_draw()
 
-        self.width = int((coords0 - self.d.oldx)/4)
-        self.points = [(self.d.oldx,self.d.oldy), (coords0-self.width, self.d.oldy), (coords0,coords1), (self.d.oldx+self.width,coords1)]
-        self.d.pixmap_temp.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 ,0,0, WIDTH, HEIGHT)
-        self.d.pixmap_temp.draw_polygon(self.d.gc, True, self.points)
-        self.d.pixmap_temp.draw_polygon(self.d.gc_line, False, self.points)
 
-    def star(self, widget, coords):
+    def star(self, widget, coords, temp):
         """Draw a arrow.
 
         Keyword arguments:
@@ -324,38 +293,63 @@ class Desenho:
         coords -- Two value tuple
 
         """
-        widget.queue_draw()     
-
-        if coords[0] > WIDTH:
-            coords0 = WIDTH
-        else:
-            coords0 = coords[0]
-            
-        if coords [1] > HEIGHT:
-            coords1 = HEIGHT
+        if temp == True:
+            pixmap = self.d.pixmap_temp
         else:
-            coords1 = coords[1]
+            pixmap = self.d.pixmap
+        width, height = self.d.window.get_size()
+        
+        x = coords[0] - self.d.oldx
+        y = coords[1] - self.d.oldy
+
+        points = [(self.d.oldx,self.d.oldy),\
+(self.d.oldx+int(x*0.25), self.d.oldy+int(y*0.4)),\
+(self.d.oldx+int(x), self.d.oldy+int(y*0.4)),\
+(self.d.oldx+int(x*0.35), self.d.oldy+int(y*0.6)),\
+(self.d.oldx+int(x*0.6), self.d.oldy+y),\
+(self.d.oldx, self.d.oldy+int(y*0.75)),\
+(self.d.oldx-int(x*0.6), self.d.oldy+y),\
+(self.d.oldx-int(x*0.35), self.d.oldy+int(y*0.6)),\
+(self.d.oldx-int(x), self.d.oldy+int(y*0.4)),\
+(self.d.oldx-int(x*0.25), self.d.oldy+int(y*0.4))]
+        pixmap.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 ,0,0, width, height)
+        pixmap.draw_polygon(self.d.gc, True, points)
+        pixmap.draw_polygon(self.d.gc_line, False, points)
+        widget.queue_draw()
 
-        if coords0 < 0:
-            coords0 = 0
-
-        if coords1 < 0:
-            coords1 = 0
-        self.width = coords0 - self.d.oldx
-        self.height = coords1 - self.d.oldy
-        self.points = [(self.d.oldx,self.d.oldy),\
-(self.d.oldx+int(self.width*0.25), self.d.oldy+int(self.height*0.4)),\
-(self.d.oldx+int(self.width),self.d.oldy+int(self.height*0.4)),\
-(self.d.oldx+int(self.width*0.35), self.d.oldy+int(self.height*0.6)),\
-(self.d.oldx+int(self.width*0.6), self.d.oldy+self.height),\
-(self.d.oldx, self.d.oldy+int(self.height*0.75)),\
-(self.d.oldx-int(self.width*0.6), self.d.oldy+self.height),\
-(self.d.oldx-int(self.width*0.35), self.d.oldy+int(self.height*0.6)),\
-(self.d.oldx-int(self.width),self.d.oldy+int(self.height*0.4)),\
-(self.d.oldx-int(self.width*0.25), self.d.oldy+int(self.height*0.4))]
-        self.d.pixmap_temp.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 ,0,0, WIDTH, HEIGHT)
-        self.d.pixmap_temp.draw_polygon(self.d.gc, True, self.points)
-        self.d.pixmap_temp.draw_polygon(self.d.gc_line, False, self.points)
+
+    def polygon_regular(self, widget, coords, n, temp):
+        """Draw polygon with n sides.
+
+        Keyword arguments:
+        self -- Desenho.Desenho instance
+        widget -- Area object (GtkDrawingArea)
+        coords -- Two value tuple
+        n -- number of sides
+        temp -- switch between pixmap and pixmap_temp
+
+        """
+        if temp == True:
+            pixmap = self.d.pixmap_temp
+        else:
+            pixmap = self.d.pixmap
+        width, height = self.d.window.get_size()
+        
+        x = coords[0] - self.d.oldx
+        y = coords[1] - self.d.oldy
+        A = math.atan2(y,x)
+        dA = 2*math.pi/n
+        r = math.hypot(y,x)
+        p = [(self.d.oldx+int(r*math.cos(A)),self.d.oldy+int(r*math.sin(A)))]
+        for i in range(n-1):
+            A = A+dA
+            p.append((self.d.oldx+int(r*math.cos(A)),self.d.oldy+int(r*math.sin(A))))
+        tp = tuple(p)
+        
+        pixmap.draw_drawable(self.d.gc, self.d.pixmap, 0, 0, 0, 0, width, height)
+        pixmap.draw_polygon(self.d.gc, True, tp)
+        pixmap.draw_polygon(self.d.gc_line, False, tp)
+        widget.queue_draw()
 
     
     def circle(self, widget, coords):
@@ -572,8 +566,9 @@ class Desenho:
         self.d.pixmap_sel.draw_rectangle(self.d.gc_selection1, False ,coords[0] - w/2-1, coords[1]- h/2-1, w+2, h+2)
         
         widget.queue_draw()
-    
-    def polygon(self, widget, coords):
+
+
+    def polygon(self, widget, coords, temp, fill):
         """Draw polygon.
 
         Keyword arguments:
@@ -581,14 +576,48 @@ class Desenho:
         widget -- Area object (GtkDrawingArea)
         coords -- Two value tuple
 
-        """ 
-        self.d.pixmap_temp.draw_drawable(self.d.gc,self.d.pixmap,  0 , 0 ,0,0, WIDTH, HEIGHT)
-        if self.d.polygon_start:
-            self.d.pixmap_temp.draw_line(self.d.gc_line,self.d.oldx,self.d.oldy,coords[0],coords[1]) 
+        """
+
+        if temp == True:
+            pixmap = self.d.pixmap_temp
         else:
-            self.d.pixmap_temp.draw_line(self.d.gc_line,int (self.d.lastx), int (self.d.lasty),coords[0],coords[1]) 
-        self.d.newx = coords[0]     
-        self.d.newy = coords[1]     
+            pixmap = self.d.pixmap
+        width, height = self.d.window.get_size()
+
+        pixmap.draw_drawable(self.d.gc, self.d.pixmap, 0, 0, 0, 0, width, height)
+        
+        if self.d.polygon_start == True: # Starting a new polygon ?
+            if temp == True:
+                pixmap.draw_line(self.d.gc_line,self.d.oldx,self.d.oldy, coords[0], coords[1])
+            else:
+                pixmap.draw_line(self.d.gc_line,self.d.oldx,self.d.oldy, coords[0], coords[1])
+                self.d.enableUndo(widget)
+                self.d.lastx = coords[0]
+                self.d.lasty = coords[1]
+                self.d.firstx = self.d.oldx
+                self.d.firsty = self.d.oldy
+                self.d.polygon_start = False
+                self.d.points = [(self.d.oldx,self.d.oldy), (coords[0],coords[1])]
+        else:
+            if temp == True:
+                pixmap.draw_line(self.d.gc_line,self.d.lastx,self.d.lasty,coords[0],coords[1])
+            else:
+                x = coords[0] - self.d.firstx
+                y = coords[1] - self.d.firsty
+                d = math.hypot(x,y)
+                if d > 20: # close the polygon ?
+                    pixmap.draw_line(self.d.gc_line,self.d.lastx,self.d.lasty,coords[0],coords[1])
+                    self.d.lastx = coords[0]
+                    self.d.lasty = coords[1]
+                    self.d.points.append((coords[0],coords[1]))
+                else:
+                    tp = tuple(self.d.points)
+                    if fill == True:
+                        pixmap.draw_polygon(self.d.gc, True, tp)
+                    pixmap.draw_polygon(self.d.gc_line, False, tp)
+                    self.d.polygon_start = True
+                    self.d.undo_times -= 1#destroy the undo screen of polygon start 
+                    self.d.enableUndo(widget)
         widget.queue_draw()
         
         
diff --git a/toolbox.py b/toolbox.py
index 7b4d76a..cac41c0 100644..100755
--- a/toolbox.py
+++ b/toolbox.py
@@ -570,7 +570,7 @@ class ShapesToolbar(gtk.Toolbar):
     _TOOL_SHAPE_HEART = 'heart'
     _TOOL_SHAPE_LINE = 'line'
     _TOOL_SHAPE_PARALLELOGRAM = 'parallelogram'
-    _TOOL_SHAPE_POLYGON = 'polygon'
+    _TOOL_SHAPE_POLYGON = 'polygon_regular'
     _TOOL_SHAPE_RECTANGLE = 'rectangle'
     _TOOL_SHAPE_STAR = 'star'
     _TOOL_SHAPE_TRAPEZOID = 'trapezoid'
@@ -641,12 +641,14 @@ class ShapesToolbar(gtk.Toolbar):
         self.insert(self._tool_shape_line, -1)
         self._tool_shape_line.show()
         self._tool_shape_line.set_tooltip(_('Line'))
-        """
+        
         self._tool_shape_polygon = ToolButton('tool-shape-polygon')
         self.insert(self._tool_shape_polygon, -1)
         self._tool_shape_polygon.show()
         self._tool_shape_polygon.set_tooltip(_('Polygon'))
 
+        """
+        
         self._tool_shape_freeform = ToolButton('tool-shape-freeform')
         self.insert(self._tool_shape_freeform, -1)
         self._tool_shape_freeform.show()
@@ -695,7 +697,7 @@ class ShapesToolbar(gtk.Toolbar):
         #self._tool_shape_heart.connect('clicked', self.set_tool, self._TOOL_SHAPE_HEART)
         self._tool_shape_line.connect('clicked', self.set_tool, self._TOOL_SHAPE_LINE)
         self._tool_shape_parallelogram.connect('clicked', self.set_tool, self._TOOL_SHAPE_PARALLELOGRAM)
-        #self._tool_shape_polygon.connect('clicked', self.set_tool, self._TOOL_SHAPE_POLYGON)
+        self._tool_shape_polygon.connect('clicked', self.set_tool, self._TOOL_SHAPE_POLYGON)
         self._tool_shape_rectangle.connect('clicked', self.set_tool, self._TOOL_SHAPE_RECTANGLE)
         self._tool_shape_star.connect('clicked', self.set_tool, self._TOOL_SHAPE_STAR)
         self._tool_shape_trapezoid.connect('clicked', self.set_tool, self._TOOL_SHAPE_TRAPEZOID)
--
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