使用tkinter制做tkinterUI编辑器
前言
这篇文章继续记录编辑属性的控件，我但愿编辑颜色的时候能够直接弹出系统自带的颜色选择界面，编辑image属性时能够弹出选择文件的界面，因此先添加一个编辑颜色以及image的控件，以后添加一个根据属性类型进行编辑属性的控件。python
1、编辑颜色以及image的控件
先上代码，EditorPropertyList.pyapp
#!/usr/bin/python # -*- coding: utf-8 -*- import sys from enum import IntEnum import tkinter.font as tkFont from tkinter import Entry, END, Label, Button from tkinter.ttk import Combobox from tkinter import colorchooser from tkinter.filedialog import askopenfilename from ScrollRows import ScrollRows from ScrollCols import ScrollCols from WidgetRedirector import WidgetRedirector from componentProperty import update_all_property, get_default_component_info, get_all_prop_name def create_default_component(master, component_type, component_name, prop=None, use_name=True): """ 建立默认控件 :param master: 父控件 :param component_type: 控件类型 :param component_name: 控件名字 :param prop: 须要更新的属性 :param use_name: 是否使用控件名字 :return: 控件 """ class_name = getattr(sys.modules[__name__], component_type) if use_name: component = class_name(master, name=component_name) else: component = class_name(master) component_info = get_default_component_info(component_type, prop) update_all_property(component, component_info, component_type) return component, component_info class EntryBtnFunctionID(IntEnum): FUNCTION_COLOR = 1 FUNCTION_SELECT = 2 class EntryWithBtn(Entry): def __init__(self, master=None, cnf={ }, **kw): Entry.__init__(self, master, cnf, **kw) self.function_id = EntryBtnFunctionID.FUNCTION_COLOR self.function_dict = { EntryBtnFunctionID.FUNCTION_COLOR: self.btn_color_click, EntryBtnFunctionID.FUNCTION_SELECT: self.btn_select_click, } def set_function_id(self, function_id): if self.function_id == function_id: return self.function_id = function_id def get_function_id(self): return self.function_id def on_update(self): self.create_btn() def create_btn(self): prop = { "width": 0, "height": 1, "x": self.winfo_reqwidth() - 15, "text": "...", "background": "grey", } btn, info = create_default_component(self, "Button", "function_btn", prop, True) btn.bind("<Button-1>", self.on_btn_click) def on_btn_click(self, event): function = self.function_dict[self.get_function_id()] function() def btn_color_click(self): color = colorchooser.askcolor() if color[0] is None: return self.delete(0, END) self.insert(0, color[1]) def btn_select_click(self): file_path = askopenfilename(title=u"选择文件", filetypes=[("all files", "*")]) if not file_path: return self.delete(0, END) self.insert(0, file_path)
说明：ssh
-
这个控件就是Entry里加了一个按钮，点击的时候根据类型去分别进行处理，以下图：
编辑器 -
WidgetRedirector是从python自带的idle编辑器里面拷贝的，主要是用来处理entry的insert和delete事件的，以后会用到，代码以下，WidgetRedirector.pyide
from tkinter import TclError class WidgetRedirector: """Support for redirecting arbitrary widget subcommands. Some Tk operations don't normally pass through tkinter. For example, if a character is inserted into a Text widget by pressing a key, a default Tk binding to the widget's 'insert' operation is activated, and the Tk library processes the insert without calling back into tkinter. Although a binding to <Key> could be made via tkinter, what we really want to do is to hook the Tk 'insert' operation itself. For one thing, we want a text.insert call in idle code to have the same effect as a key press. When a widget is instantiated, a Tcl command is created whose name is the same as the pathname widget._w. This command is used to invoke the various widget operations, e.g. insert (for a Text widget). We are going to hook this command and provide a facility ('register') to intercept the widget operation. We will also intercept method calls on the tkinter class instance that represents the tk widget. In IDLE, WidgetRedirector is used in Percolator to intercept Text commands. The function being registered provides access to the top of a Percolator chain. At the bottom of the chain is a call to the original Tk widget operation. """ def __init__(self, widget): '''Initialize attributes and setup redirection. _operations: dict mapping operation name to new function. widget: the widget whose tcl command is to be intercepted. tk: widget.tk, a convenience attribute, probably not needed. orig: new name of the original tcl command. Since renaming to orig fails with TclError when orig already exists, only one WidgetDirector can exist for a given widget. ''' self._operations = { } self.widget = widget # widget instance self.tk = tk = widget.tk # widget's root w = widget._w # widget's (full) Tk pathname self.orig = w + "_orig" # Rename the Tcl command within Tcl: tk.call("rename", w, self.orig) # Create a new Tcl command whose name is the widget's pathname, and # whose action is to dispatch on the operation passed to the widget: tk.createcommand(w, self.dispatch) def __repr__(self): return "WidgetRedirector(%s<%s>)" % (self.widget.__class__.__name__, self.widget._w) def close(self): "Unregister operations and revert redirection created by .__init__." for operation in list(self._operations): self.unregister(operation) widget = self.widget tk = widget.tk w = widget._w # Restore the original widget Tcl command. tk.deletecommand(w) tk.call("rename", self.orig, w) del self.widget, self.tk # Should not be needed # if instance is deleted after close, as in Percolator. def register(self, operation, function): '''Return OriginalCommand(operation) after registering function. Registration adds an operation: function pair to ._operations. It also adds an widget function attribute that masks the tkinter class instance method. Method masking operates independently from command dispatch. If a second function is registered for the same operation, the first function is replaced in both places. ''' self._operations[operation] = function setattr(self.widget, operation, function) return OriginalCommand(self, operation) def unregister(self, operation): '''Return the function for the operation, or None. Deleting the instance attribute unmasks the class attribute. ''' if operation in self._operations: function = self._operations[operation] del self._operations[operation] try: delattr(self.widget, operation) except AttributeError: pass return function else: return None def dispatch(self, operation, *args): '''Callback from Tcl which runs when the widget is referenced. If an operation has been registered in self._operations, apply the associated function to the args passed into Tcl. Otherwise, pass the operation through to Tk via the original Tcl function. Note that if a registered function is called, the operation is not passed through to Tk. Apply the function returned by self.register() to *args to accomplish that. For an example, see ColorDelegator.py. ''' m = self._operations.get(operation) try: if m: return m(*args) else: return self.tk.call((self.orig, operation) + args) except TclError: return "" class OriginalCommand: '''Callable for original tk command that has been redirected. Returned by .register; can be used in the function registered. redir = WidgetRedirector(text) def my_insert(*args): print("insert", args) original_insert(*args) original_insert = redir.register("insert", my_insert) ''' def __init__(self, redir, operation): '''Create .tk_call and .orig_and_operation for .__call__ method. .redir and .operation store the input args for __repr__. .tk and .orig copy attributes of .redir (probably not needed). ''' self.redir = redir self.operation = operation self.tk = redir.tk # redundant with self.redir self.orig = redir.orig # redundant with self.redir # These two could be deleted after checking recipient code. self.tk_call = redir.tk.call self.orig_and_operation = (redir.orig, operation) def __repr__(self): return "OriginalCommand(%r, %r)" % (self.redir, self.operation) def __call__(self, *args): return self.tk_call(self.orig_and_operation + args) def _widget_redirector(parent): # htest # from tkinter import Tk, Text import re root = Tk() root.title("Test WidgetRedirector") width, height, x, y = list(map(int, re.split('[x+]', parent.geometry()))) root.geometry("+%d+%d"%(x, y + 150)) text = Text(root) text.pack() text.focus_set() redir = WidgetRedirector(text) def my_insert(*args): print("insert", args) original_insert(*args) original_insert = redir.register("insert", my_insert) root.mainloop() if __name__ == "__main__": import unittest unittest.main('idlelib.idle_test.test_widgetredir', verbosity=2, exit=False) from idlelib.idle_test.htest import run run(_widget_redirector)
2、根据属性类型进行编辑属性的控件
先上代码，仍是EditorPropertyList.py函数
class EditPropType(IntEnum): TYPE_ENTRY = 1 TYPE_COMBO_BOX = 2 TYPE_COLOR = 3 TYPE_SELECT = 4 CURSOR_LIST = ( "arrow;based_arrow_down;based_arrow_up;boat;bogosity;bottom_left_corner;bottom_right_corner;" "bottom_side;bottom_tee;box_spiral;center_ptr;circle;clock;coffee_mug;cross;cross_reverse;crosshair;" "diamond_cross;dot;dotbox;double_arrow;draft_large;draft_small;draped_box;exchange;fleur;gobbler;gumby;" "hand1;hand2;heart;icon;iron_cross;left_ptr;left_side;left_tee;leftbutton;ll_angle;lr_angle;man;" "middlebutton;mouse;none;pencil;pirate;plus;question_arrow;right_ptr;right_side;right_tee;rightbutton;" "rtl_logo;sailboat;sb_down_arrow;sb_h_double_arrow;sb_left_arrow;sb_right_arrow;sb_up_arrow;" "sb_v_double_arrow;shuttle;sizing;spider;spraycan;star;target;tcross;top_left_arrow;top_left_corner;" "top_right_corner;top_side;top_tee;trek;ul_angle;umbrella;ur_angle;watch;xterm;X_cursor" ) PROP_TO_VALUES = { "anchor": ("n;s;w;e;nw;sw;ne;se;center"), "justify": ("left;right;center"), "font_anchor": ("n;s;w;e;nw;sw;ne;se;center"), "labelanchor": ("n;s;w;e;nw;sw;ne;se"), "relief": ("flat;groove;raised;ridge;solid;sunken"), "activerelief": ("flat;groove;raised;ridge;solid;sunken"), "sliderrelief": ("flat;groove;raised;ridge;solid;sunken"), "buttondownrelief": ("flat;groove;raised;ridge;solid;sunken"), "buttonuprelief": ("flat;groove;raised;ridge;solid;sunken"), "mode": ("determinate;indeterminate"), "state": ("active;disabled;normal;readonly"), "cursor": CURSOR_LIST, "buttoncursor": CURSOR_LIST, "compound": ("bottom;center;left;none;right;top"), "exportselection": ("0;1"), "selectmode": ("browse;multiple;single;extended;none"), "is_show_scroll": ("0;1"), "is_show_scroll_x": ("0;1"), "is_show_scroll_y": ("0;1"), "is_always_show_scroll": ("0;1"), "orient": ("horizontal;vertical"), "wrap": ("none;char;word"), "show": ("headings;tree;tree headings"), } PROP_COLOR_LIST = ( "background", "activebackground", "activeforeground", "disabledforeground", "readonlybackground", "foreground", "highlightbackground", "highlightcolor", "insertbackground", "disabledbackground", "selectbackground", "selectforeground", "troughcolor", "selectcolor", "buttonbackground" ) PROP_SELECT_LIST = ( "bitmap", "image" ) def get_prop_type_by_name(name): """ 根据属性名字获取编辑框类型 :param name: 属性名字 :return: 编辑框类型 """ if name in PROP_TO_VALUES: return EditPropType.TYPE_COMBO_BOX if name in PROP_COLOR_LIST: return EditPropType.TYPE_COLOR if name in PROP_SELECT_LIST: return EditPropType.TYPE_SELECT return EditPropType.TYPE_ENTRY class EditorProperty(ScrollCols): TYPE_TO_CLASS = { EditPropType.TYPE_ENTRY: Entry, EditPropType.TYPE_COMBO_BOX: Combobox, EditPropType.TYPE_COLOR: EntryWithBtn, EditPropType.TYPE_SELECT: EntryWithBtn, } def __init__(self, master=None, cnf={ }, **kw): ScrollCols.__init__(self, master, cnf, **kw) self.col_distance = 2 self.is_updating_property = False # 是否正在更新属性 def create_label(self, label_text, is_do_layout=False): """ 建立属性名字标签 :param label_text: 标签内容 :param is_do_layout: 是否从新布局 :return: None """ label_prop = { "width": 23, "borderwidth": 2, "x": 0, "y": 1, "text": label_text, "relief": "sunken", "highlightthickness": 1, } label, info = create_default_component(self.slide_window, "Label", "label_text", label_prop) self.add_col_base(label, is_do_layout) def create_edit(self, edit_type, edit_value, default_values="None", is_do_layout=False): """ 建立属性编辑框 :param edit_type: 编辑框类型 :param edit_value: 默认值 :param default_values: comboBox下拉列表默认值 :param is_do_layout: 是否从新布局 :return: None """ edit_class = self.TYPE_TO_CLASS[edit_type] edit_prop = { "borderwidth": 2, "width": 29, "x": 0, "y": 1, } if edit_type == EditPropType.TYPE_COMBO_BOX: values = default_values.split(";") value_list = [] for value in values: value_list.append(value) edit_prop.update({ "values": value_list, "width": 27, "position_y": 1, "borderwidth": 1,}) elif edit_type == EditPropType.TYPE_SELECT: edit_prop.update({ "function_id": EntryBtnFunctionID.FUNCTION_SELECT}) elif edit_type == EditPropType.TYPE_COLOR: edit_prop.update({ "function_id": EntryBtnFunctionID.FUNCTION_COLOR}) edit, info = create_default_component(self.slide_window, edit_class.__name__, "edit", edit_prop) edit.bind("<Key>", self.key_click) if edit_type == EditPropType.TYPE_COMBO_BOX: edit.bind("<<ComboboxSelected>>", self.on_prop_change) self.add_col_base(edit, is_do_layout) if edit_value is not None: edit.insert(0, edit_value) redir = WidgetRedirector(edit) def my_insert(*args): original_insert(*args) self.on_prop_change(None) def my_delete(*args): original_delete(*args) self.on_prop_change(None) original_insert = redir.register("insert", my_insert) original_delete = redir.register("delete", my_delete) def create_one_property(self, label_text, edit_value, edit_type, default_value): """ 建立编辑属性所需的控件 :param label_text: 属性名字 :param edit_value: 属性值 :param edit_type: 编辑框类型 :param default_value: comboBox下拉列表默认值 :return: None """ self.create_label(label_text) self.create_edit(edit_type, edit_value, default_value) self.do_layout_col() def update_prop_value(self, prop_value): """ 更新属性值 :param prop_value: 属性值 :return: None """ edit = self.slide_window.children.get("edit", None) if edit is None: return self.is_updating_property = True edit.delete(0, END) edit.insert(0, prop_value) self.is_updating_property = False def clear_edit_value(self): """ 清除编辑框内容 :return: None """ edit = self.slide_window.children.get("edit", None) if edit is None: return self.is_updating_property = True edit.delete(0, END) self.is_updating_property = False def on_prop_change(self, event): """ 属性更新以后回调 :param event: :return: """ if self.is_updating_property: return label = self.slide_window.children.get("label_text", None) if label is None: return edit = self.slide_window.children.get("edit", None) if edit is None: return value = edit.get() if not value: return self.master.master.edit_component.update_property({ label['text']: value,}, "prop_list") def key_click(self, event): self.master.master.get_selected_component().component.focus_force() if event.keysym in ("Up", "Down"): return "break" @staticmethod def create_default_property(master, component_name, prop=None): property_dict = { "x": 0, "y": 0, "width": 500, "height": 500, "borderwidth": 0, "pos_x_default": 3, } if prop is not None: property_dict.update(prop) property, info = create_default_component(master, "EditorProperty", component_name, property_dict) return property
说明：oop
- 我将编辑框分为了4个类型，有下拉列表的(例如font，cursor等等)用ComboBox，选择颜色和文件的用EntryWithBtn，其他的都用Entry
- 编辑框插入和删除以后须要更新正在编辑的控件属性，使用WidgetRedirector处理
- self.master.master.edit_component.update_property({label[‘text’]: value,}, “prop_list”)这句是后面真正编辑属性时用到的，这里不用管
- update_prop_value这个函数是经过鼠标将控件移动位置后修改编辑框的文字时调用的，这里为了不循环调用on_prop_change函数加了一个限制is_updating_property
- key_click这里我还没想好，目前不用管
- 须要再更新一下componentProperty这个文件