diff options
Diffstat (limited to 'tacanvas.py')
| -rw-r--r-- | tacanvas.py | 534 |
1 files changed, 273 insertions, 261 deletions
diff --git a/tacanvas.py b/tacanvas.py index 3f680d9..bf81876 100644 --- a/tacanvas.py +++ b/tacanvas.py @@ -21,8 +21,6 @@ import gtk from math import sin,cos,pi -class taTurtle: pass - from tasetup import load_image import sprites import taturtle @@ -30,6 +28,16 @@ import pango from constants import * +def wrap100(n): + n = int(n) + n %= 200 + if n>99: n=199-n + return n + +def calc_shade(c,s): + if s<0: return int(c*(1+s*.8)) + return int(c+(65536-c)*s*.9) + colors = {} DEGTOR = 2*pi/360 @@ -55,262 +63,266 @@ color_table = ( 0xFF00FF,0xFF00E6,0xFF00CC,0xFF00B3,0xFF0099, 0xFF0080,0xFF0066,0xFF004D,0xFF0033,0xFF001A) -def tNew(tw,w,h): - t = taTurtle() - t.tw, t.width, t.height = tw, w, h - t.canvas = sprites.Sprite(tw.sprite_list, 0, 0, - gtk.gdk.Pixmap(tw.area,w,h,-1)) - (t.cx,t.cy) = t.canvas.get_xy() - t.canvas.type = 'canvas' - t.canvas.set_layer(CANVAS_LAYER) - # t.shapelist = [] - t.t = taturtle.Turtle(tw.turtle_list, tw.sprite_list, - ["#800000", "#A00000", "#D00000", "#800000"]) - t.spr = t.t.spr - t.spr.type = 'turtle' - t.spr.set_layer(TURTLE_LAYER) - t.gc = t.canvas.image.new_gc() - t.shade = 0 - clearscreen(t) - return t - -def clearscreen(t): - t.xcor, t.ycor, t.heading = 0,0,0 - rect = gtk.gdk.Rectangle(0,0,t.width,t.height) - t.gc.set_foreground(t.tw.bgcolor) - t.canvas.image.draw_rectangle(t.gc, True, *rect) - invalt(t,0,0,t.width,t.height) - setpensize(t,5) - setcolor(t,0) - settextcolor(t,70) - settextsize(t,32) - setshade(t,50) - t.pendown = True - move_turtle(t) - turn_turtle(t) - return None - -def forward(t, n): - n *= t.tw.coord_scale - t.gc.set_foreground(t.tw.fgcolor) - oldx, oldy = t.xcor, t.ycor - try: - t.xcor += n*sin(t.heading*DEGTOR) - t.ycor += n*cos(t.heading*DEGTOR) - except: - pass - if t.pendown: - draw_line(t,oldx,oldy,t.xcor,t.ycor) - move_turtle(t) - return None - -def seth(t,n): - try: - t.heading=n - except: - pass - t.heading%=360 - turn_turtle(t) - return None - -def right(t,n): - try: - t.heading+=n - except: - pass - t.heading%=360 - turn_turtle(t) - return None - -def arc(t,a,r): - t.gc.set_foreground(t.tw.fgcolor) - r *= t.tw.coord_scale - try: - if a<0: larc(t,-a,r) - else: rarc(t,a,r) - except: - pass - move_turtle(t) - turn_turtle(t) - -def rarc(t,a,r): - if r<0: r=-r; a=-a - cx = t.xcor+r*cos(t.heading*DEGTOR) - cy = t.ycor-r*sin(t.heading*DEGTOR) - x,y,w,h=t.width/2+int(cx-r),t.height/2-int(cy+r),int(2*r),int(2*r) - if t.pendown: - t.canvas.image.draw_arc(t.gc,False,x,y,w,h, \ - int(180-t.heading-a)*64,int(a)*64) - invalt(t,x-t.pensize*t.tw.coord_scale/2-3,y-t.pensize*t.tw.coord_scale/2-3,\ - w+t.pensize*t.tw.coord_scale+6,h+t.pensize*t.tw.coord_scale+6) - right(t,a) - t.xcor=cx-r*cos(t.heading*DEGTOR) - t.ycor=cy+r*sin(t.heading*DEGTOR) - -def larc(t,a,r): - if r<0: r=-r; a=-a - cx = t.xcor-r*cos(t.heading*DEGTOR) - cy = t.ycor+r*sin(t.heading*DEGTOR) - x,y,w,h=t.width/2+int(cx-r),t.height/2-int(cy+r),int(2*r),int(2*r) - if t.pendown: - t.canvas.image.draw_arc(t.gc,False,x,y,w,h,int(360-t.heading)*64, \ - int(a)*64) - invalt(t,x-t.pensize*t.tw.coord_scale/2-3,y-t.pensize*t.tw.coord_scale/2-3,\ - w+t.pensize*t.tw.coord_scale+6,h+t.pensize*t.tw.coord_scale+6) - right(t,-a) - t.xcor=cx+r*cos(t.heading*DEGTOR) - t.ycor=cy-r*sin(t.heading*DEGTOR) - -def setxy(t,x,y): - x *= t.tw.coord_scale - y *= t.tw.coord_scale - try: - t.xcor,t.ycor = x,y - except: - pass - move_turtle(t) - -def setpensize(t,ps): - try: - if ps<0: - ps=0; - t.pensize = ps - except: - pass - t.gc.set_line_attributes(int(t.pensize*t.tw.coord_scale), \ - gtk.gdk.LINE_SOLID, \ - gtk.gdk.CAP_ROUND, gtk.gdk.JOIN_MITER) - return None - -def setcolor(t,c): - try: - t.color = c - t.tcolor = c - except: - pass - set_fgcolor(t) - set_textcolor(t) - return None - -def settextcolor(t,c): - try: - t.tcolor = c - except: - pass - set_textcolor(t) - return None - -def settextsize(t,c): - try: - t.tw.textsize = c - except: - pass - return None - -def setshade(t,s): - try: - t.shade = s - except: - pass - set_fgcolor(t) - set_textcolor(t) - return None - -def fillscreen(t,c,s): - oldc, olds = t.color,t.shade - try: - setcolor(t,c); setshade(t,s) - rect = gtk.gdk.Rectangle(0,0,t.width,t.height) - t.gc.set_foreground(t.tw.fgcolor) - t.canvas.image.draw_rectangle(t.gc, True, *rect) - invalt(t,0,0,t.width,t.height) - setcolor(t,oldc); setshade(t,olds) - except: - pass - return None - -def set_fgcolor(t): - sh = (wrap100(t.shade)-50)/50.0 - rgb = color_table[wrap100(t.color)] - r,g,b = (rgb>>8)&0xff00,rgb&0xff00,(rgb<<8)&0xff00 - r,g,b = calc_shade(r,sh),calc_shade(g,sh),calc_shade(b,sh) - t.tw.rgb = [r>>8,g>>8,b>>8] - t.tw.fgcolor = t.tw.cm.alloc_color(r,g,b) - -def set_textcolor(t): - sh = (wrap100(t.shade)-50)/50.0 - rgb = color_table[wrap100(t.tcolor)] - r,g,b = (rgb>>8)&0xff00,rgb&0xff00,(rgb<<8)&0xff00 - r,g,b = calc_shade(r,sh),calc_shade(g,sh),calc_shade(b,sh) - t.tw.textcolor = t.tw.cm.alloc_color(r,g,b) - -def wrap100(n): - n = int(n) - n %= 200 - if n>99: n=199-n - return n - -def calc_shade(c,s): - if s<0: return int(c*(1+s*.8)) - return int(c+(65536-c)*s*.9) - -def setpen(t,bool): - t.pendown = bool - -def draw_pixbuf(t,pixbuf,a,b,x,y,w,h): - w *= t.tw.coord_scale - h *= t.tw.coord_scale - t.canvas.image.draw_pixbuf(t.gc, pixbuf, a, b, x, y) - invalt(t,x,y,w,h) - -def draw_text(t, label, x, y, size, w): - w *= t.tw.coord_scale - t.gc.set_foreground(t.tw.textcolor) - fd = pango.FontDescription('Sans') - try: - fd.set_size(int(size*t.tw.coord_scale)*pango.SCALE) - except: - pass - if type(label) == str or type(label) == unicode: - pl = t.tw.window.create_pango_layout(label.replace("\0"," ")) - elif type(label) == float or type(label) == int: - pl = t.tw.window.create_pango_layout(str(label)) - else: - print "draw text: Type Error: %s" % (type(label)) - pl = t.tw.window.create_pango_layout(str(label)) - pl.set_font_description(fd) - pl.set_width(int(w)*pango.SCALE) - t.canvas.image.draw_layout(t.gc,int(x),int(y),pl) - w,h = pl.get_pixel_size() - invalt(t,x,y,w,h) - -def draw_line(t,x1,y1,x2,y2): - x1,y1 = t.width/2+int(x1), t.height/2-int(y1) - x2,y2 = t.width/2+int(x2), t.height/2-int(y2) - if x1<x2: minx,maxx=x1,x2 - else: minx,maxx=x2,x1 - if y1<y2: miny,maxy=y1,y2 - else: miny,maxy=y2,y1 - w,h=maxx-minx,maxy-miny - t.canvas.image.draw_line(t.gc,x1,y1,x2,y2) - invalt(t,minx-t.pensize*t.tw.coord_scale/2-3, - miny-t.pensize*t.tw.coord_scale/2-3, - w+t.pensize*t.tw.coord_scale+6, - h+t.pensize*t.tw.coord_scale+6) - -def turn_turtle(t): - # t.spr.set_shape(t.shapelist[(int(t.heading+5)%360)/10]) - print "turning turtle to position %d" % ((int(t.heading+5)%360)/10) - t.t.rotate((int(t.heading+5)%360)/10) - -def move_turtle(t): - x,y = t.width/2+int(t.xcor), t.height/2-int(t.ycor) - t.spr.move((t.cx+x-30, t.cy+y-30)) - invalt(t, x-30, y-30, 60, 60) - -def invalt(t,x,y,w,h): - rect = gtk.gdk.Rectangle(int(x+t.cx), int(y+t.cy), int(w),int(h)) - t.tw.area.invalidate_rect(rect, False) - - - +# +# A class for the Turtle graphics canvas +# +class TurtleGraphics: + def __init__(self, tw, width, height): + self.tw = tw + self.width = width + self.height = height + self.canvas = sprites.Sprite(tw.sprite_list, 0, 0, + gtk.gdk.Pixmap(self.tw.area, self.width, self.height, -1)) + (self.cx, self.cy) = self.canvas.get_xy() + self.canvas.type = 'canvas' + self.canvas.set_layer(CANVAS_LAYER) + self.gc = self.canvas.image.new_gc() + self.tw.turtle.show() + self.shade = 0 + self.clearscreen() + + def clearscreen(self): + rect = gtk.gdk.Rectangle(0, 0, self.width, self.height) + self.gc.set_foreground(self.tw.bgcolor) + self.canvas.image.draw_rectangle(self.gc, True, *rect) + self.invalt(0, 0, self.width, self.height) + self.setpensize(5) + self.setcolor(0) + self.settextcolor(70) + self.settextsize(32) + self.setshade(50) + self.pendown = True + for t in range(self.tw.turtle_list.turtle_count()): + self.set_turtle(t) + self.xcor, self.ycor, self.heading = 0, 0, 0 + self.move_turtle() + self.turn_turtle() + + def forward(self, n): + n *= self.tw.coord_scale + self.gc.set_foreground(self.tw.fgcolor) + oldx, oldy = self.xcor, self.ycor + try: + self.xcor += n*sin(self.heading*DEGTOR) + self.ycor += n*cos(self.heading*DEGTOR) + except: + pass + if self.pendown: + self.draw_line(oldx, oldy, self.xcor, self.ycor) + self.move_turtle() + + def seth(self, n): + try: + self.heading = n + except: + pass + self.heading%=360 + self.turn_turtle() + + def right(self, n): + try: + self.heading += n + except: + pass + self.heading%=360 + self.turn_turtle() + + def arc(self,a,r): + self.gc.set_foreground(self.tw.fgcolor) + r *= self.tw.coord_scale + try: + if a<0: + self.larc(-a, r) + else: + self.rarc(a, r) + except: + pass + self.move_turtle() + self.turn_turtle() + + def rarc(self, a, r): + if r<0: + r=-r; a=-a + cx = self.xcor+r*cos(self.heading*DEGTOR) + cy = self.ycor-r*sin(self.heading*DEGTOR) + x,y = self.width/2+int(cx-r), self.height/2-int(cy+r) + w,h = int(2*r), int(2*r) + if self.pendown: + self.canvas.image.draw_arc(self.gc, False, x, y, w, h, + int(180-self.heading-a)*64, int(a)*64) + self.invalt(x-self.pensize*self.tw.coord_scale/2-3, + y-self.pensize*self.tw.coord_scale/2-3, + w+self.pensize*self.tw.coord_scale+6, + h+self.pensize*self.tw.coord_scale+6) + self.right(a) + self.xcor=cx-r*cos(self.heading*DEGTOR) + self.ycor=cy+r*sin(self.heading*DEGTOR) + + def larc(self, a, r): + if r<0: + r=-r; a=-a + cx = self.xcor-r*cos(self.heading*DEGTOR) + cy = self.ycor+r*sin(self.heading*DEGTOR) + x,y = self.width/2+int(cx-r), self.height/2-int(cy+r) + w,h = int(2*r), int(2*r) + if self.pendown: + self.canvas.image.draw_arc(self.gc,False, x, y, w, h, + int(360-self.heading)*64, int(a)*64) + self.invalt(x-self.pensize*self.tw.coord_scale/2-3, + y-self.pensize*self.tw.coord_scale/2-3, + w+self.pensize*self.tw.coord_scale+6, + h+self.pensize*self.tw.coord_scale+6) + self.right(-a) + self.xcor=cx+r*cos(self.heading*DEGTOR) + self.ycor=cy-r*sin(self.heading*DEGTOR) + + def setxy(self, x, y): + x *= self.tw.coord_scale + y *= self.tw.coord_scale + try: + self.xcor,self.ycor = x,y + except: + pass + self.move_turtle() + + def setpensize(self,ps): + try: + if ps<0: + ps=0; + self.pensize = ps + except: + pass + self.gc.set_line_attributes(int(self.pensize*self.tw.coord_scale), + gtk.gdk.LINE_SOLID, gtk.gdk.CAP_ROUND, gtk.gdk.JOIN_MITER) + + def setcolor(self,c): + try: + self.color = c + self.tcolor = c + except: + pass + self.set_fgcolor() + self.set_textcolor() + + def settextcolor(self,c): + try: + self.tcolor = c + except: + pass + self.set_textcolor() + + def settextsize(self,c): + try: + self.tw.textsize = c + except: + pass + + def setshade(self,s): + try: + self.shade = s + except: + pass + self.set_fgcolor() + self.set_textcolor() + + def fillscreen(self,c,s): + oldc, olds = self.color,self.shade + try: + setcolor(self,c); setshade(self,s) + rect = gtk.gdk.Rectangle(0,0,self.width,self.height) + self.gc.set_foreground(self.tw.fgcolor) + self.canvas.image.draw_rectangle(self.gc, True, *rect) + self.invalt(0,0,self.width,self.height) + self.setcolor(oldc); self.setshade(olds) + except: + pass + + def set_fgcolor(self): + sh = (wrap100(self.shade)-50)/50.0 + rgb = color_table[wrap100(self.color)] + r,g,b = (rgb>>8)&0xff00,rgb&0xff00,(rgb<<8)&0xff00 + r,g,b = calc_shade(r,sh),calc_shade(g,sh),calc_shade(b,sh) + self.tw.rgb = [r>>8,g>>8,b>>8] + self.tw.fgcolor = self.tw.cm.alloc_color(r,g,b) + + def set_textcolor(self): + sh = (wrap100(self.shade)-50)/50.0 + rgb = color_table[wrap100(self.tcolor)] + r,g,b = (rgb>>8)&0xff00,rgb&0xff00,(rgb<<8)&0xff00 + r,g,b = calc_shade(r,sh),calc_shade(g,sh),calc_shade(b,sh) + self.tw.textcolor = self.tw.cm.alloc_color(r,g,b) + + def setpen(self,bool): + self.pendown = bool + + def draw_pixbuf(self,pixbuf,a,b,x,y,w,h): + w *= self.tw.coord_scale + h *= self.tw.coord_scale + self.canvas.image.draw_pixbuf(self.gc, pixbuf, a, b, x, y) + self.invalt(x,y,w,h) + + def draw_text(self, label, x, y, size, w): + w *= self.tw.coord_scale + self.gc.set_foreground(self.tw.textcolor) + fd = pango.FontDescription('Sans') + try: + fd.set_size(int(size*self.tw.coord_scale)*pango.SCALE) + except: + pass + if type(label) == str or type(label) == unicode: + pl = self.tw.window.create_pango_layout(label.replace("\0"," ")) + elif type(label) == float or type(label) == int: + pl = self.tw.window.create_pango_layout(str(label)) + else: + print "draw text: Type Error: %s" % (type(label)) + pl = self.tw.window.create_pango_layout(str(label)) + pl.set_font_description(fd) + pl.set_width(int(w)*pango.SCALE) + self.canvas.image.draw_layout(self.gc,int(x),int(y),pl) + w,h = pl.get_pixel_size() + self.invalt(x,y,w,h) + + def draw_line(self,x1,y1,x2,y2): + x1,y1 = self.width/2+int(x1), self.height/2-int(y1) + x2,y2 = self.width/2+int(x2), self.height/2-int(y2) + if x1<x2: minx,maxx=x1,x2 + else: minx,maxx=x2,x1 + if y1<y2: miny,maxy=y1,y2 + else: miny,maxy=y2,y1 + w,h=maxx-minx,maxy-miny + self.canvas.image.draw_line(self.gc,x1,y1,x2,y2) + self.invalt(minx-self.pensize*self.tw.coord_scale/2-3, + miny-self.pensize*self.tw.coord_scale/2-3, + w+self.pensize*self.tw.coord_scale+6, + h+self.pensize*self.tw.coord_scale+6) + + def turn_turtle(self): + self.tw.turtle.rotate(self.heading) + + def move_turtle(self): + x, y = self.width/2+int(self.xcor), self.height/2-int(self.ycor) + self.tw.turtle.move((self.cx+x-30, self.cy+y-30)) + self.invalt(x-30,y-30,60,60) + + def invalt(self, x, y, w, h): + rect = gtk.gdk.Rectangle(int(x+self.cx), int(y+self.cy), int(w),int(h)) + self.tw.area.invalidate_rect(rect, False) + + def set_turtle(self, i): + # TODO: associate pen state with individual turtles + # TODO: reskin active turtle + print "switching to Turtle %d" % (i) + if i > self.tw.turtle_list.turtle_count()-1: + # if it is a new turtle, put it in the center of the screen + self.tw.turtle = self.tw.turtle_list.get_turtle(i, True) + self.xcor = 0 + self.ycor = 0 + self.heading = 0 + self.tw.turtle.move_turtle() + self.tw.turtle.rotate(self.heading) + self.tw.turtle = self.tw.turtle_list.get_turtle(i, True) + tx, ty = self.tw.turtle.get_xy() + self.xcor = tx+30-self.width/2 + self.ycor = self.height/2-ty-30 + self.heading = self.tw.turtle.get_heading() + self.tw.turtle_list.show_all() |