{"id":1146,"date":"2020-04-23T00:00:00","date_gmt":"2020-04-22T15:00:00","guid":{"rendered":"https:\/\/www.ishikawasekkei.com\/?p=1146"},"modified":"2020-05-02T14:52:22","modified_gmt":"2020-05-02T05:52:22","slug":"python-tkinter-gui-programing-canvas-scale","status":"publish","type":"post","link":"https:\/\/www.ishikawasekkei.com\/index.php\/2020\/04\/23\/python-tkinter-gui-programing-canvas-scale\/","title":{"rendered":"Python tkinter GUI \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 Canvas scale"},"content":{"rendered":"\n<p>\u3000\u4eca\u65e5\u3082\u898b\u306b\u6765\u3066\u304f\u3060\u3055\u3063\u3066\u3001\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002\u77f3\u5ddd\u3055\u3093\u3067\u3059\u3002\u307e\u3060\u307e\u3060Canvas\u306b\u3064\u3044\u3066\u3001\u8abf\u3079\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u5148\u65e5\u307e\u3067\u306f\u3001Canvas\u306e\u79fb\u52d5\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u3001\u524d\u56de\u306e\u4e88\u8a00\u901a\u308a\u3001\u62e1\u5927\u3001\u7e2e\u5c0f\u306b\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u30a4\u30d9\u30f3\u30c8\u306bMouseWheel\u3068\u3044\u3046\u306e\u304c\u3042\u308a\u307e\u3057\u305f\u306e\u3067\u3001\u3053\u308c\u3092\u4f7f\u3044\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002Excel\u3067\u8abf\u3079\u3066\u307f\u305f\u3089\u3001\u30db\u30a4\u30fc\u30eb\u3092\u666e\u901a\u306b\u56de\u3059\u3068\u4e0a\u4e0b\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u3001Ctrl\u30ad\u30fc\u3092\u62bc\u3057\u3066\u30db\u30a4\u30fc\u30eb\u3092\u56de\u3059\u3068\u62e1\u5927\u7e2e\u5c0f\u3001Ctrl+Shift\u30ad\u30fc\u3092\u62bc\u3057\u3066\u30db\u30a4\u30fc\u30eb\u3092\u307e\u6307\u3059\u3068\u5de6\u53f3\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u307e\u3057\u305f\u306e\u3067\u3001\u3053\u3061\u3089\u306b\u5408\u308f\u305b\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<p>\u3000\u4eca\u56de\u3082\u30a4\u30e1\u30fc\u30b8\u306f\u5909\u308f\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u307f\u63b2\u8f09\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import tkinter as tk\n\nclass App(tk.Tk):\n    def __init__(self):\n        super().__init__()\n        self.title(\"Canvas move test\")\n        self.geometry(\"400x200\")\n        \n        sx = tk.Scrollbar(self, orient=tk.HORIZONTAL)\n        sy = tk.Scrollbar(self, orient=tk.VERTICAL)\n        c = tk.Canvas(self, background=\"white\",xscrollcommand=sx.set,yscrollcommand=sy.set)\n        sx.config(command=c.xview)\n        sy.config(command=c.yview)\n        self.info = tk.Label(self)\n        self.info.grid(row=2,columnspan=2)\n        c.grid(row=0, column=0, sticky=tk.NSEW)\n        sx.grid(row=1, column=0, sticky=tk.EW)\n        sy.grid(row=0, column=1, sticky=tk.NS)\n        \n        self.canvas = c \n        self.start = None\n        c.bind(\"&lt;Motion>\",self.move)\n        c.bind(\"&lt;ButtonPress>\",self.button_press)\n        c.bind(\"&lt;ButtonRelease>\",self.button_release)\n        c.bind(\"&lt;MouseWheel>\",self.mouse_wheel)\n        self.rowconfigure(0, weight=1)\n        self.columnconfigure(0, weight=1)\n        self.bind(\"&lt;Configure>\", self.resize)\n        \n        c.create_rectangle(40,40,60,60)\n\n\n    def move(self, event):\n        x = self.canvas.canvasx(event.x)\n        y = self.canvas.canvasy(event.y)\n        self.info.configure(text=f\"mouse position = ({event.x}, {event.y}) ({x},{y})\")\n        if self.start and self.item:\n            original_x, original_y = self.start\n            self.canvas.move(self.item,x - original_x,y - original_y)\n            self.start = x, y\n            self.resize(event)\n        elif event.state == 256: # Button1\n            self.canvas.scan_dragto(event.x, event.y, gain=1)\n    \n    def button_press(self, event):\n        x, y = self.canvas.canvasx(event.x), self.canvas.canvasy(event.y)\n        self.start = x, y\n        self.item = self.canvas.find_overlapping(x-10,y-10,x+10,y+10)\n        if self.item:\n            self.item = self.item[0]\n        else:\n            self.canvas.scan_mark(event.x, event.y)\n        if event.num == 3:\n            self.item = self.canvas.create_rectangle(x-10,y-10,x+10,y+10)\n\n    def button_release(self, event):\n        self.start = None\n\n    def resize(self, event):\n        region = self.canvas.bbox(tk.ALL)\n        if region[0] > 0:\n            region = (0, *region[1:])\n        if region[1] > 0:\n            region = (region[0], 0, *region[2:])\n        self.canvas.configure(scrollregion=region)\n\n    def mouse_wheel(self, event):\n        if event.state == 5: # Shift|Control\n            self.canvas.scan_mark(event.x, event.y)\n            self.canvas.scan_dragto(event.x + event.delta \/\/ 120, event.y, gain=10)\n        elif event.state == 4: # Control\n            scale = 1 + event.delta \/ 1200\n            self.canvas.scale(tk.ALL,event.x, event.y, scale, scale)\n        elif event.state == 1: # Shift\n            pass\n        elif event.state == 0: # None\n            self.canvas.scan_mark(event.x, event.y)\n            self.canvas.scan_dragto(event.x, event.y + event.delta \/\/ 120, gain=10)\n        self.resize(event)\n\nif __name__ == \"__main__\":\n    app = App()\n    app.mainloop()<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u89e3\u8aac<\/h2>\n\n\n\n<p>\u3000\u307e\u305a\u306f\u3001\u30db\u30a4\u30fc\u30eb\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u30d0\u30a4\u30f3\u30c9\u3057\u307e\u3059\u300225\u884c\u76ee\u306b<code>c.bind(\"&lt;MouseWheel&gt;\",self.mouse_wheel)<\/code>\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u30db\u30a4\u30fc\u30eb\u304c\u56de\u3055\u308c\u305f\u3068\u304d\u306b<code>mouse_wheel<\/code>\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u308c\u305e\u308c\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30ad\u30fc\u3092\u62bc\u3055\u308c\u305f\u3068\u304d\u3001\u30b7\u30d5\u30c8\u30ad\u30fc\u3092\u62bc\u3055\u308c\u305f\u3068\u304d\u3001\u4e21\u65b9\u62bc\u3055\u308c\u305f\u3068\u304d\u306e\u5b9f\u884c\u7d50\u679c\u3092<code>event<\/code>\u3092<code>print<\/code>\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;MouseWheel event delta=-120 x=244 y=110>\n&lt;MouseWheel event state=Control delta=-120 x=244 y=110>\n&lt;MouseWheel event state=Shift delta=-120 x=244 y=110>\n&lt;MouseWheel event state=Shift|Control delta=-120 x=244 y=110><\/pre>\n\n\n\n<p>\u3000\u3053\u306e\u307e\u307e\u3067\u306f<code>state<\/code>\u306e\u5024\u304c\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u3001\u5225\u9014<code>event.state<\/code>\u3092<code>print<\/code>\u3057\u3066\u307f\u305f\u3068\u3053\u308d\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Shift=1<\/li><li>Ctrl=4<\/li><li>Shift+Ctrl=5<\/li><\/ul>\n\n\n\n<p>\u3000<code>delta<\/code>\u306e\u5024\u306f\u3001\u30db\u30a4\u30fc\u30eb\u304c\u4e0b\u306b\u56de\u3055\u308c\u308b\u3068\u3001-120\u3001\u4e0a\u306b\u56de\u3055\u308c\u308b\u3068120\u304c\u30bb\u30c3\u30c8\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u5024\u3068\u5148\u65e5\u4f7f\u3063\u305f\u3001<code>scan_mark<\/code>\u3068<code>scan_dragto<\/code>\u3067\u4e0a\u4e0b\u30b9\u30af\u30ed\u30fc\u30eb\u3092\u5b9f\u88c5\u3001<code>scale<\/code>\u3092\u4f7f\u3063\u3066\u62e1\u5927\u7e2e\u5c0f\u3092\u5b9f\u88c5\u3057\u307e\u3057\u305f\u3002\u62e1\u5927\u7e2e\u5c0f\u306e<code>scale<\/code>\u306f\u3001<a href=\"https:\/\/stackoverflow.com\/questions\/33795411\/tkinter-scaling-items-on-a-canvas\" class=\"aioseop-link\">\u3053\u306e\u30da\u30fc\u30b8<\/a>\u3092\u53c2\u8003\u306b\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3000\u3042\u3068\u306f\u3001<code>resize<\/code>\u3057\u305f\u3068\u304d\u306b\u5de6\u4e0a\u304c(0,0)\u306e\u4f4d\u7f6e\u3058\u3083\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u306f\u3001\u3069\u3046\u306a\u306e\u304b\u306a\u3041\u3001\u3068\u3001\u601d\u3063\u305f\u306e\u3067\u3001<code>resize<\/code>\u3092\u5909\u66f4\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u3082\u3057\u304b\u3057\u305f\u3089\u3001\u3082\u3063\u3068\u3044\u3044\u65b9\u6cd5\u304c\u3042\u308b\u304b\u3082\u77e5\u308c\u307e\u305b\u3093\u304c\u3001\u3068\u308a\u3042\u3048\u305a\u6e80\u8db3\u3044\u304f\u52d5\u4f5c\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3000\u4eca\u56de\u306f\u3001\u5272\u5408\u3059\u3093\u306a\u308a\u3068\u3001\u30db\u30a4\u30fc\u30eb\u3092\u4f7f\u3063\u305f\u62e1\u5927\u7e2e\u5c0f\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u62e1\u5927\u7e2e\u5c0f\u3057\u305f\u3068\u304d\u306b\u3001\u7bb1\u3092\u4f5c\u308b\u3068\u3001\u5927\u304d\u3055\u306e\u9055\u3046\u7bb1\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u62e1\u5927\u7387\u3001\u7e2e\u5c0f\u7387\u3092\u4fdd\u6301\u3057\u3066\u7bb1\u3092\u4f5c\u308b\u3068\u304d\u306b\u53c2\u7167\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u305d\u3046\u3067\u3059\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3000\u4eca\u65e5\u3082\u898b\u306b\u6765\u3066\u304f\u3060\u3055\u3063\u3066\u3001\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002\u77f3\u5ddd\u3055\u3093\u3067\u3059\u3002\u307e\u3060\u307e\u3060Canvas\u306b\u3064\u3044\u3066\u3001\u8abf\u3079\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \u3000\u5148\u65e5\u307e\u3067\u306f\u3001Canvas\u306e\u79fb\u52d5\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u3001\u524d\u56de\u306e\u4e88\u8a00\u901a\u308a\u3001\u62e1\u5927\u3001\u7e2e\u5c0f\u306b\u30c1\u30e3 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.ishikawasekkei.com\/index.php\/2020\/04\/23\/python-tkinter-gui-programing-canvas-scale\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;Python tkinter GUI \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 Canvas scale&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,13,2],"tags":[],"class_list":["post-1146","post","type-post","status-publish","format-standard","hentry","category-program","category-tkinter","category-blog"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/posts\/1146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/comments?post=1146"}],"version-history":[{"count":4,"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/posts\/1146\/revisions"}],"predecessor-version":[{"id":1206,"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/posts\/1146\/revisions\/1206"}],"wp:attachment":[{"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/media?parent=1146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/categories?post=1146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ishikawasekkei.com\/index.php\/wp-json\/wp\/v2\/tags?post=1146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}