light9 Changeset - c9dcc57116c2

Changeset - c9dcc57116c2

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Drew Perttula - 20 years ago 2005-06-18 16:58:15
drewp@bigasterisk.com

new curve editing: select single/multiple points, delete selection, move selection

3 files changed with 144 insertions and 48 deletions:

bin/curvecalc

light9/curve.py

114

light9/zoomcontrol.py

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bin/curvecalc

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@@ @@ -357,7 +357,8 @@ root.bind("<Control-Key-s>",savekey) @@
 root.bind("<Control-Key-r>", lambda evt: dispatcher.send('reload all subs'))
 create_status_lines(root)
 for helpline in ["Bindings: C-s save subterms; B1 drag point; C-B1 curve add point; S-B1 sketch points; Del point under mouse; 1..5 add point at time; Esc see current time; S-Esc see curtime to end; Mousewheel zoom; C-p play/pause music at mouse",
 for helpline in ["Bindings: C-s save subterms;  Esc see current time; S-Esc see curtime to end; Mousewheel zoom; C-p play/pause music at mouse",
                  "Curve point bindings: B1 drag point; C-B1 curve add point; S-B1 sketch points; Del selected points; 1..5 add point at time; Alt-Shift-B1 drag select points",
                  "Available in functions: nsin/ncos period=amp=1; within(a,b) bef(x) aft(x) compare to time; smoove(x) cubic smoothstep; curvename(t) eval curve"]:
     tk.Label(root,text=helpline, font="Helvetica -12 italic",
              anchor='w').pack(side='top',fill='x')

light9/curve.py

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@@ @@ -50,11 +50,11 @@ class Curve: @@
         i = bisect(self.points,(new_pt[0],None))
         self.points.insert(i,new_pt)
     def indices_between(self, x1, x2):
         leftidx = max(0, bisect_left(self.points, (x1,None)) - 1)
         rightidx = min(len(self.points) - 1,
                        bisect_left(self.points, (x2,None)) + 1)
         return range(leftidx, rightidx+1)
     def indices_between(self, x1, x2, beyond=0):
         leftidx = max(0, bisect(self.points, (x1,None)) - beyond)
         rightidx = min(len(self.points),
                        bisect(self.points, (x2,None)) + beyond)
         return range(leftidx, rightidx)
     def points_between(self, x1, x2):
         return [self.points[i] for i in self.indices_between(x1,x2)]
@@ @@ -136,6 +136,7 @@ class Curveview(tk.Canvas): @@
         dispatcher.connect(self.input_time,"input time")
         dispatcher.connect(self.update_curve,"zoom changed")
         dispatcher.connect(self.update_curve,"points changed",sender=self.curve)
         dispatcher.connect(self.select_between,"select between")
         self.bind("<Configure>",self.update_curve)
         for x in range(1, 6):
             def add_kb_marker_point(evt, x=x):
@@ @@ -161,14 +162,56 @@ class Curveview(tk.Canvas): @@
                   dispatcher.send("music seek",
                                   t=self.world_from_screen(ev.x,0)[0]))
         self.bind("<Motion>",
                   self.dotmotion, add=True)
         self.bind("<ButtonRelease-1>",
                   self.dotrelease, add=True)
         # this binds on c-a-b1, etc
         RegionZoom(self, self.world_from_screen, self.screen_from_world)
         self.regionzoom = RegionZoom(self, self.world_from_screen,
                                      self.screen_from_world)
         self.sketch = None # an in-progress sketch
         self.bind("<Shift-ButtonPress-1>", self.sketch_press)
         self.bind("<Shift-B1-Motion>", self.sketch_motion)
         self.bind("<Shift-ButtonRelease-1>", self.sketch_release)
         # hold alt-shift to select, since i had a hard time detecting
         # other combos right
         self.selecting = False
         self.bind("<Alt-Key>", self.select_press)
         self.bind("<Motion>", self.select_motion, add=True)
         self.bind("<Alt-KeyRelease>", self.select_release)
         self.bind("<ButtonPress-1>", self.check_deselect, add=True)
     def check_deselect(self,ev):
         try:
             self.find_index_near(ev.x, ev.y)
         except ValueError:
             self.selected_points[:] = []
             self.highlight_selected_dots()
     def select_press(self,ev):
         if not self.selecting:
             self.selecting = True
             self.select_start = self.world_from_screen(ev.x,0)[0]
             cursors.push(self,"gumby")
     def select_motion(self,ev):
         if not self.selecting:
             return
     def select_release(self,ev):
         if not self.selecting:
             return
         cursors.pop(self)
         self.selecting = False
         s,e = (self.select_start, self.world_from_screen(ev.x,0)[0])
         self.select_between(min(s,e), max(s,e))
     def sketch_press(self,ev):
         self.sketch = Sketch(self,ev)
@@ @@ -209,8 +252,9 @@ class Curveview(tk.Canvas): @@
         visible_x = (self.world_from_screen(0,0)[0],
                      self.world_from_screen(self.winfo_width(),0)[0])
         visible_points = self.curve.points_between(*visible_x)
         visible_idxs = self.curve.indices_between(*visible_x)
         visible_idxs = self.curve.indices_between(visible_x[0], visible_x[1],
                                                   beyond=1)
         visible_points = [cp[i] for i in visible_idxs]
         self.delete('curve')
@@ @@ -280,7 +324,7 @@ class Curveview(tk.Canvas): @@
         #            print ev.state
         #        self.bind("<KeyPress>",curs)
         #        self.bind("<KeyRelease-Control_L>",lambda ev: curs(0))
-        self.tag_bind(line,"<Control-ButtonPress-1>",self.newpointatmouse)
+        self.tag_bind(line,"<Control-ButtonPress-1>",self.new_point_at_mouse)
     def _draw_handle_points(self,visible_idxs,visible_points):
@@ @@ -299,10 +343,6 @@ class Curveview(tk.Canvas): @@
                                        tags=('curve','point', 'handle%d' % i))
             self.tag_bind('handle%d' % i,"<ButtonPress-1>",
                           lambda ev,i=i: self.dotpress(ev,i))
             self.bind("<Motion>",
                       lambda ev,i=i: self.dotmotion(ev,i))
             self.bind("<ButtonRelease-1>",
                       lambda ev,i=i: self.dotrelease(ev,i))
             #self.tag_bind('handle%d' % i, "<Key-d>",
             #              lambda ev, i=i: self.remove_point_idx(i))
@@ @@ -312,18 +352,21 @@ class Curveview(tk.Canvas): @@
             # had a hard time tag_binding to the points, so i trap at
             # the widget level (which might be nice anyway when there
             # are multiple pts selected)
             tags = self.gettags(self.find_closest(ev.x, ev.y))
             try:
                 handletags = [t for t in tags if t.startswith('handle')]
                 i = int(handletags[0][6:])
             except IndexError:
                 return
             self.remove_point_idx(i)
             if self.selected_points:
                 self.remove_point_idx(*self.selected_points)
         self.bind("<Key-Delete>", delpoint)
         self.highlight_selected_dots()
     def find_index_near(self,x,y):
         tags = self.gettags(self.find_closest(x, y))
         try:
             handletags = [t for t in tags if t.startswith('handle')]
             return int(handletags[0][6:])
         except IndexError:
             raise ValueError("no point found")
-    def newpointatmouse(self, ev):
+    def new_point_at_mouse(self, ev):
         p = self.world_from_screen(ev.x,ev.y)
         x, y = p
         y = max(0, y)
@@ @@ -336,8 +379,29 @@ class Curveview(tk.Canvas): @@
         self.curve.insert_pt(p)
         self.update_curve()
     def remove_point_idx(self, i):
         self.curve.points.pop(i)
     def remove_point_idx(self, *idxs):
         idxs = list(idxs)
         while idxs:
             i = idxs.pop()
             self.curve.points.pop(i)
             newsel = []
             newidxs = []
             for si in range(len(self.selected_points)):
                 sp = self.selected_points[si]
                 if sp == i:
                     continue
                 if sp > i:
                     sp -= 1
                 newsel.append(sp)
             for ii in range(len(idxs)):
                 if ii > i:
                     ii -= 1
                 newidxs.append(idxs[ii])
             self.selected_points[:] = newsel
             idxs[:] = newidxs
         self.update_curve()
     def highlight_selected_dots(self):
@@ @@ -348,29 +412,47 @@ class Curveview(tk.Canvas): @@
                 self.itemconfigure(d,fill='blue')
     def dotpress(self,ev,dotidx):
         self.selected_points=[dotidx]
         if dotidx not in self.selected_points:
             self.selected_points=[dotidx]
         self.highlight_selected_dots()
         self.last_mouse_world = self.world_from_screen(ev.x, ev.y)
     def select_between(self,start,end):
         self.selected_points = self.curve.indices_between(start,end)
         self.highlight_selected_dots()
     def dotmotion(self,ev,dotidx):
     def dotmotion(self,ev):
         if not ev.state & 256:
             return # not lmb-down
         cp = self.curve.points
         moved=0
         cur = self.world_from_screen(ev.x, ev.y)
         delta = (cur[0] - self.last_mouse_world[0],
                  cur[1] - self.last_mouse_world[1])
         self.last_mouse_world = cur
         for idx in self.selected_points:
             x,y = self.world_from_screen(ev.x,ev.y)
             y = max(0,min(1,y))
             if idx>0 and x<=cp[idx-1][0]:
             newp = [cp[idx][0] + delta[0], cp[idx][1] + delta[1]]
             newp[1] = max(0,min(1,newp[1]))
             if idx>0 and newp[0] <= cp[idx-1][0]:
                 continue
-            if idx<len(cp)-1 and x>=cp[idx+1][0]:
+            if idx<len(cp)-1 and newp[0] >= cp[idx+1][0]:
                 continue
             moved=1
-            cp[idx] = (x,y)
+            cp[idx] = tuple(newp)
         if moved:
             self.update_curve()
     def unselect(self):
         self.selected_points=[]
         self.highlight_selected_dots()
     def dotrelease(self,ev,dotidx):
         self.unselect()
     def dotrelease(self,ev):
         pass #self.unselect()
 class Curveset:
     curves = None # curvename : curve

light9/zoomcontrol.py

➞

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@@ @@ -170,7 +170,7 @@ class Zoomcontrol(object,tk.Canvas): @@
 class RegionZoom:
     """rigs c-a-b1 to drag out an area to zoom to.
+    """rigs c-a-b1 to drag out an area to zoom to. also catches other types of drag events, like b1 drag for selecting points
     this is used with Curveview
     """
@@ @@ -181,16 +181,26 @@ class RegionZoom: @@
         for evtype, method in [("ButtonPress-1",self.press),
                                ("Motion",self.motion),
                                ("ButtonRelease-1",self.release)]:
             canvas.bind("<Control-Alt-%s>" % evtype, method)
             if evtype != "ButtonPress-1":
                 canvas.bind("<%s>" % evtype, method)
             #canvas.bind("<Control-Alt-%s>" % evtype, method, add=True)
             if 1 or evtype != "ButtonPress-1":
                 canvas.bind("<%s>" % evtype, method,add=True)
         canvas.bind("<Leave>", self.finish)
         self.start_t = self.old_cursor = None
         self.state = None
+        self.state = self.mods = None
     def press(self,ev):
         if self.state is not None:
             self.finish()
         if ev.state == 12:
             self.mods = "c-a"
         elif ev.state == 13:
             self.mods = "c-s-a"
         elif ev.state == 0:
             return # no
             self.mods = "none"
         else:
             return
         self.state = "buttonpress"
         self.start_t = self.end_t = self.world_from_screen(ev.x,0)[0]
@@ @@ -236,19 +246,22 @@ class RegionZoom: @@
         if abs(self.start_x - ev.x) < 10:
             # clicked
             factor = 1/1.5
             if ev.state & 1:
                 factor = 1.5 # c-s-a-b1 zooms out
             dispatcher.send("zoom about mouse",
                             t=self.start_t,
                             factor=factor)
             if self.mods in ("c-a", "c-s-a"):
                 factor = 1/1.5
                 if self.mods == "c-s-a":
                     factor = 1.5 # c-s-a-b1 zooms out
                 dispatcher.send("zoom about mouse",
                                 t=self.start_t,
                                 factor=factor)
             self.finish()
             return
         dispatcher.send("zoom to range",
                         start=min(self.start_t, self.end_t),
                         end=max(self.start_t, self.end_t))
         start,end = min(self.start_t, self.end_t),max(self.start_t, self.end_t)
         if self.mods == "c-a":
             dispatcher.send("zoom to range", start=start, end=end)
         elif self.mods == "none":
             dispatcher.send("select between", start=start, end=end)
         self.finish()
     def finish(self, *ev):

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