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# Sketch - A Python-based interactive drawing program |
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# Copyright (C) 2004, 2005 by Bernhard Herzog |
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# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 by Bernhard Herzog |
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# |
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# This library is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU Library General Public |
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# License as published by the Free Software Foundation; either |
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# version 2 of the License, or (at your option) any later version. |
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# |
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# This library is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# Library General Public License for more details. |
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# |
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# You should have received a copy of the GNU Library General Public |
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# License along with this library; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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|
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|
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import Sketch |
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from Sketch import Point, ContAngle, ContSmooth, ContSymmetrical, Bezier, \ |
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Line |
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from Sketch.Base.const import SelectDrag, SELECTION, HANDLES |
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from Sketch.Editor import AddEditorBuiltin, PolyBezierEditor |
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import const |
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import tools |
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from selectiontool import SelectionRectangle |
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|
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class MultiEditor: |
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|
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def __init__(self): |
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self.editors = [] |
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self.editormap = {} |
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self.offsets = [] |
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self.drag = [] |
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self.active = 0 |
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self.undo = None |
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|
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def UpdateEditors(self, selection): |
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self.editors = [] |
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oldmap = self.editormap |
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self.editormap = {} |
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GetEditor = Sketch.Editor.GetEditor |
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for obj in selection.GetObjects(): |
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if oldmap.has_key(id(obj)): |
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editor = oldmap[id(obj)] |
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else: |
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editor = GetEditor(obj) |
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if editor is not None: |
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self.editors.append(editor) |
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self.editormap[id(obj)] = editor |
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self.active = 0 |
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|
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def ButtonDown(self, p, button, state): |
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if not self.editors: |
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return None |
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offsets = [] |
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drag = [] |
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for editor in self.editors: |
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if editor.HasSelection(): |
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drag.append(1) |
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off = editor.ButtonDown(p, button, state) |
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else: |
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drag.append(0) |
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off = None |
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if off is None: |
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off = Point(0, 0) |
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offsets.append(off) |
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off = offsets[self.active] |
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for i in range(len(offsets)): |
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offsets[i] = off - offsets[i] |
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self.offsets = offsets |
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self.drag = drag |
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return off |
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|
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def MouseMove(self, p, state): |
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drag = self.drag |
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for i in range(len(self.editors)): |
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if drag[i]: |
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self.editors[i].MouseMove(p + self.offsets[i], state) |
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|
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def ButtonUp(self, p, button, state): |
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undo = [] |
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drag = self.drag |
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for i in range(len(self.editors)): |
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if drag[i]: |
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info = self.editors[i].ButtonUp(p + self.offsets[i], button, |
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state) |
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if info is not None: |
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undo.append(info) |
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return Sketch.Base.CreateListUndo(undo) |
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|
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def Handles(self): |
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handles = [] |
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for i in range(len(self.editors)): |
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h = self.editors[i].GetHandles() |
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for tmp in h: |
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tmp.editor = i |
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handles.extend(h) |
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return handles |
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|
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def SelectHandle(self, handle, mode): |
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self.active = handle.editor |
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change = self.editors[self.active].SelectHandle(handle, mode) |
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if change == const.SelectSingle: |
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editors = self.editors[:] |
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del editors[self.active] |
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for editor in editors: |
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editor.SelectNone() |
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|
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def SelectPoint(self, p, device, mode): |
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rect = device.HitRectAroundPoint(p) |
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point_selected = False |
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for i, editor in enumerate(self.editors): |
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if editor.SelectPoint(p, rect, device, mode): |
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self.active = i |
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point_selected = True |
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return point_selected |
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|
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def SelectRect(self, rect, mode): |
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for editor in self.editors: |
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editor.SelectRect(rect, mode) |
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|
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def DrawDragged(self, device, partially): |
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drag = self.drag |
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for i in range(len(self.editors)): |
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if drag[i]: |
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self.editors[i].DrawDragged(device, partially) |
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|
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def Show(self, device, partially = 0): |
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drag = self.drag |
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for i in range(len(self.editors)): |
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if drag[i]: |
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self.editors[i].Show(device, partially) |
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|
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def Hide(self, device, partially = 0): |
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drag = self.drag |
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for i in range(len(self.editors)): |
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if drag[i]: |
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self.editors[i].Hide(device, partially) |
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|
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def CurrentInfoText(self): |
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if self.editors: |
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return self.editors[self.active].CurrentInfoText() |
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else: |
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return "" |
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|
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|
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|
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class EditToolInstance(tools.ToolInstance): |
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|
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title = ''"Edit" |
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|
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def __init__(self, editor): |
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tools.ToolInstance.__init__(self, editor) |
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self.editor.Subscribe(SELECTION, self.selection_changed) |
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self.multiedit = MultiEditor() |
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self.get_editors() |
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|
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def End(self): |
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self.editor.Unsubscribe(SELECTION, self.selection_changed) |
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tools.ToolInstance.End(self) |
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|
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def selection_changed(self): |
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self.get_editors() |
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|
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def get_editors(self): |
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self.multiedit.UpdateEditors(self.editor.Selection()) |
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|
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def ButtonPress(self, context, p, snapped, button, state, handle = None): |
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tools.ToolInstance.ButtonPress(self, context, p, snapped, button, |
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state, handle = handle) |
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object = None |
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hide_handles = 1 |
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if handle is not None: |
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# The user pressed the button over a handle. Prepare to drag |
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# at the handle |
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self.multiedit.SelectHandle(handle, SelectDrag) |
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object = self.multiedit |
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else: |
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test = context.test_device() |
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test.StartOutlineMode() |
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if self.editor.SelectionHit(p, test, test_all = 0) \ |
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and self.multiedit.SelectPoint(p, test, SelectDrag): |
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# The user pressed the button over an already selected object. |
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# Prepare to edit/transform the current selection |
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self.multiedit.SelectPoint(p, test, SelectDrag) |
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object = self.multiedit |
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else: |
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pick = self.editor.PickActiveObject(test, p) |
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if pick is not None and pick.is_GuideLine: |
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# edit guide line |
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object = Sketch.Editor.GuideEditor(pick) |
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test.EndOutlineMode() |
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|
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# if no object has been found to be edited, start a |
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# rubberbanding selection |
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if object is None: |
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object = SelectionRectangle(p) |
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hide_handles = 0 |
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|
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self.begin_edit_object(context, object, snapped, button, state, |
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hide_handles = hide_handles) |
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|
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def ButtonRelease(self, context, p, snapped, button, state): |
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tools.ToolInstance.ButtonRelease(self, context, p, snapped, button, |
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state) |
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object = self.end_edit_object(context, snapped, button, state) |
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if isinstance(object, SelectionRectangle): |
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self.multiedit.SelectRect(object.bounding_rect, |
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tools.selection_type(state)) |
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self.editor.update_handles() |
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|
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def ButtonClick(self, context, p, snapped, button, state, handle = None): |
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tools.ToolInstance.ButtonClick(self, context, p, snapped, button, |
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state, handle = handle) |
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mode = tools.selection_type(state) |
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if handle is not None: |
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self.multiedit.SelectHandle(handle, mode) |
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self.editor.update_handles() |
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else: |
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test = context.test_device() |
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test.StartOutlineMode() |
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hit = self.editor.SelectionHit(p, test, test_all = 0) |
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test.EndOutlineMode() |
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if hit: |
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self.multiedit.SelectPoint(p, test, mode) |
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self.editor.update_handles() |
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else: |
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self.editor.SelectPoint(p, test, mode) |
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|
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def CallObjectEditorMethod(self, aclass, methodname, *args): |
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for objecteditor in self.multiedit.editors: |
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if isinstance(objecteditor, aclass): |
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self.document.BeginTransaction() |
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obmethod = getattr(objecteditor, methodname) |
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undo = obmethod(*args) |
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if undo is not None: |
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self.document.AddUndo(undo) |
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self.document.EndTransaction() |
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self.editor.update_handles() |
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|
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def Handles(self): |
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if self.editor.HasSelection(): |
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handles = self.multiedit.Handles() |
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else: |
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handles = [] |
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return handles |
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|
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EditTool = tools.ToolInfo("EditTool", EditToolInstance, cursor = 'CurEdit', |
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active_cursor = 1) |
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|
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# PolyBezier commands |
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def check_polybezier_method(context, methodname, *args): |
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"""Return true if EditTool is active, there is at least a PolyBezier |
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selected and calling methodname on PolyBezierEditor returns True. |
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""" |
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can = 0 |
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editor = context.editor |
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tool = editor.Tool() |
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if isinstance(tool, EditToolInstance) and context.tool == 'EditTool' and \ |
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editor.HasSelection(): |
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for objeditor in tool.multiedit.editors: |
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if isinstance(objeditor, PolyBezierEditor): |
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checkmethod = getattr(objeditor, methodname) |
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if checkmethod(*args): |
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can = 1 |
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break |
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return can |
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|
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def call_polybezier_method(context, method, *args): |
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tool = context.editor.Tool() |
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if isinstance(tool, EditToolInstance): |
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tool.CallObjectEditorMethod(PolyBezierEditor, method, *args) |
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|
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AddEditorBuiltin('cont_angle', ''"Angle", |
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call_polybezier_method, ('SetContinuity', ContAngle), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanSetContinuity', ContAngle), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('cont_smooth', ''"Smooth", |
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call_polybezier_method, ('SetContinuity', ContSmooth), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanSetContinuity', ContSmooth), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('cont_symmetrical', ''"Symmetrical", |
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call_polybezier_method, ('SetContinuity', ContSymmetrical), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanSetContinuity', ContSymmetrical), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('segments_to_lines', ''"Segments To Lines", |
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call_polybezier_method, ('SegmentsToLines',), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanConvertSegments', Line), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('segments_to_curve', ''"Segments To Curves", |
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call_polybezier_method, ('SegmentsToCurve',), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanConvertSegments', Bezier), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('select_all_nodes', ''"Select All Nodes", |
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call_polybezier_method, ('SelectAllNodes',), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanSelectAllNodes'), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('delete_nodes', ''"Delete Nodes", |
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call_polybezier_method, ('DeleteNodes',), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanDeleteNodes'), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('insert_nodes', ''"Insert Nodes", |
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call_polybezier_method, ('InsertNodes',), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanInsertNodes'), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('close_nodes', ''"Close Nodes", |
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call_polybezier_method, ('CloseNodes',), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanCloseNodes'), |
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channels = (HANDLES,)) |
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AddEditorBuiltin('open_nodes', ''"Cut Curve", |
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call_polybezier_method, ('OpenNodes',), |
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sensitive = lambda context: check_polybezier_method(context, |
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'CanOpenNodes'), |
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channels = (HANDLES,)) |
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