{"id":1638,"date":"2012-06-06T08:58:57","date_gmt":"2012-06-06T00:58:57","guid":{"rendered":"https:\/\/www.csslayer.info\/wordpress\/?p=1638"},"modified":"2012-06-06T08:58:57","modified_gmt":"2012-06-06T00:58:57","slug":"my-gtk-tutorial-3","status":"publish","type":"post","link":"https:\/\/www.csslayer.info\/wordpress\/gtk-2\/my-gtk-tutorial-3\/","title":{"rendered":"My Gtk Tutorial 3"},"content":{"rendered":"<p>\u6240\u8c13\u7684\u5177\u4f53\u7c7b\u7684\u5b9e\u73b0\uff0c\u5176\u5b9e\u8fd9\u4e2aWidget\u529f\u80fd\u4e0d\u5f97\u4e0d\u8bf4\u662fGtk\u91cc\u9762\u7f3a\u5c11\u7684\u529f\u80fd\uff0c\u867d\u7136\u5176\u5b9eQt\u91cc\u9762\u4e5f\u6ca1\uff0c\u4e0d\u8fc7\u6211\u5728\u5199\u4ee3\u7801\u7684\u65f6\u5019\u53ef\u4ee5\u6ca1\u4ec0\u4e48\u987e\u8651\u7684\u7528 KDE \u63d0\u4f9b\u7684 UI \u5e93\uff0c\u4e8e\u662f\u6211\u53c8\u723d\u4e86\u3002<\/p>\n<p>\u8fd9\u6b21\u7684Widget\u5c31\u662f\u4e00\u4e2a\u6355\u83b7\u5feb\u6377\u952e\u7528\u7684Widget\uff0c\u5177\u4f53\u91cc\u9762\u4ee3\u7801\u7684\u5b9e\u73b0\u6211\u662f\u5f53\u521d\u4ececcsm\uff08compiz\u90a3\u4e2a\u914d\u7f6e\u5de5\u5177\uff09\u91cc\u9762\u7684python\u4ee3\u7801\u7ffb\u8bd1\u8fc7\u6765\u7684\uff0c\u554a\u4e00\u60f3\u8d77\u90a3\u4e2a\u9752\u6da9\u7684\u5e74\u4ee3\u2026\u2026<\/p>\n<p>\u76f8\u4fe1\u8fd9\u662f\u4e2a\u4eba\u6c11\u7fa4\u4f17\u559c\u95fb\u4e50\u89c1\u7684Widget\u3002<\/p>\n<p>\u539f\u7406\u5f88\u7b80\u5355\uff0c\u672c\u8eab\u662f\u4e00\u4e2abutton\uff0cbutton\u6309\u4e0b\u65f6\u663e\u793a\u4e00\u4e2awindow\uff0cwindow\u8d1f\u8d23\u6355\u6349\u6309\u952e\uff0c\u6355\u6349\u5230\u7684\u6309\u952e\u518d\u5b58\u8d77\u6765\u3002<\/p>\n<p>\u5f53\u7136\u6211\u7684\u5b9e\u73b0\u91cc\u9762\u4f7f\u7528\u4e86\u4e00\u4e9bFcitx\u81ea\u5df1\u7684parse\u548ctoString\u7684\u51fd\u6570\uff0c\u4f60\u5f53\u7136\u5efa\u8bae\u4f7f\u7528<a href=\"http:\/\/developer.gnome.org\/gtk3\/3.0\/gtk3-Keyboard-Accelerators.html#gtk-accelerator-parse\">GtkAccelerator\u7684\u65b9\u5f0f<\/a> \u6765\u8fdb\u884cparse\uff08\u5982\u679c\u4f60\u9700\u8981\u5b57\u7b26\u4e32\u7684\u8bdd\uff09\u3002<\/p>\n<p><a href=\"https:\/\/github.com\/fcitx\/fcitx-configtool\/blob\/master\/gtk3\/keygrab.h\">https:\/\/github.com\/fcitx\/fcitx-configtool\/blob\/master\/gtk3\/keygrab.h<\/a><\/p>\n<p><a href=\"https:\/\/github.com\/fcitx\/fcitx-configtool\/blob\/master\/gtk3\/keygrab.c\">https:\/\/github.com\/fcitx\/fcitx-configtool\/blob\/master\/gtk3\/keygrab.c<\/a><\/p>\n<p>\u5177\u4f53\u7684\u5b9e\u73b0\u5c31\u662f\u4e0a\u9762\u7684\u4ee3\u7801\uff08\u4e8e\u662f\u6211\u8fd8\u770b\u5230\u5f53\u521d\u6709\u4e9b\u86cb\u75bc\u7684\u6ce8\u91ca\u2026\u2026\uff09<\/p>\n<p>\u9996\u5148\u5c31\u662f\u6211\u7ee7\u627f\u4e86\u4e00\u4e2aGtkButton\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2aSignal\uff0c\u89e6\u53d1\u6309\u952e\u5728\u53d8\u5316\u65f6\u7684\u4e8b\u4ef6\u3002<\/p>\n<div id=\"LC47\">\u00a0\u00a0\u00a0 gtk_widget_set_size_request(GTK_WIDGET(keygrabbutton), 150, -1);<\/div>\n<div id=\"LC48\"><\/div>\n<div id=\"LC49\">\u00a0\u00a0\u00a0\u00a0g_signal_connect(G_OBJECT(keygrabbutton), &#8220;clicked&#8221;, (GCallback) begin_key_grab, NULL);<\/div>\n<p>\u6309\u952e\u521b\u5efa\u65f6\uff0c\u7ed1\u4e86\u4e00\u4e2asignal\u7ed9clicked\u4e8b\u4ef6\uff0c\u7528\u6765\u663e\u793a\u4e00\u4e2apopup\u3002<\/p>\n<p>\u5728clicked\u91cc\u9762\u7684\u56de\u8c03\u51fd\u6570\u4e2d\u3002<\/p>\n<pre id=\"LC93\">\u00a0\u00a0\u00a0\u00a0KeyGrabButton* b = KEYGRAB_BUTTON(self);\r\n\u00a0\u00a0\u00a0 b-&gt;popup = popup_new(GTK_WIDGET(self), _(\"Please press the new key combination\"), FALSE);\r\n\u00a0\u00a0\u00a0 gtk_widget_add_events(GTK_WIDGET(b-&gt;popup), GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);\r\n\u00a0\u00a0\u00a0 gtk_widget_show_all(b-&gt;popup);\r\n\u00a0\u00a0\u00a0 gtk_window_present(GTK_WINDOW(b-&gt;popup));\r\n\u00a0\u00a0\u00a0 b-&gt;handler = g_signal_connect(G_OBJECT(b-&gt;popup), \"key-press-event\", (GCallback)on_key_press_event, b);\r\n\u00a0\u00a0\u00a0 GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(b-&gt;popup));\r\n\u00a0\u00a0\u00a0 GdkDisplay* display = gdk_window_get_display (window);\r\n \u00a0\u00a0 GdkDeviceManager* device_manager = gdk_display_get_device_manager (display);\r\n\u00a0\u00a0\u00a0 GdkDevice* pointer = gdk_device_manager_get_client_pointer (device_manager);\r\n\u00a0\u00a0\u00a0 GdkDevice* keyboard = gdk_device_get_associated_device (pointer);\r\n\r\n\u00a0\u00a0\u00a0 while (gdk_device_grab(\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 keyboard,\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 window,\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GDK_OWNERSHIP_WINDOW, TRUE,\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GDK_KEY_PRESS | GDK_KEY_RELEASE,\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NULL,\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GDK_CURRENT_TIME) != GDK_GRAB_SUCCESS)\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 usleep(100);<\/pre>\n<p>\u8fdb\u884c\u4e86\u8fd9\u6837\u7684\u64cd\u4f5c\uff0cpopup new\u4e2d\u7684\u5b9e\u73b0\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u5c31\u662f\u5f39\u51fa\u4e00\u4e2awindow\uff0c\u5e76\u4e14\u5c06\u5176parent\u8bbe\u7f6e\u4e3a\u9876\u5c42\u7a97\u53e3\uff0c\u5982\u679c\u4f60\u7684\u51fd\u6570\u4e2d\u9700\u8981\u4f7f\u7528dialog\uff0c\u6216\u8005\u8bbe\u7f6e\u4e3amodal\u7a97\u53e3\u7684\u8bdd\uff0c\u4f60\u4f1a\u7ecf\u5e38\u7528\u5230gtk_widget_get_toplevel\uff0c\u7528\u4e8e\u83b7\u5f97\u9876\u5c42\u7684GtkWindow\u5bf9\u8c61\uff0c\u53c2\u6570\u5c31\u662f\u4efb\u610f\u4e00\u4e2a\u5df2\u7ecf\u5728GtkWidget\u6811\u4e2d\u7684Widget\u5373\u53ef\u3002<\/p>\n<p>\u8fd9\u91cc\u7684grab\u4e8b\u4ef6\u7684\u5730\u65b9\u662f\u975e\u5e38tricky\u7684\uff0c\u8bf4\u5b9e\u8bdd\u4e5f\u6bd4gtk2\u7684\u65f6\u5019\u7f57\u55e6\u4e86\u4e0d\u5c11\uff0c\u4e0d\u8fc7\u5927\u6982\u7684\u610f\u601d\u8fd8\u662f\u6bd4\u8f83\u597d\u61c2\uff0c\u9996\u5148\u662f\u8981\u83b7\u5f97keyboard\u7684GdkDevice\u6307\u9488\uff0c\u7136\u540e\u5c31\u662f\u7f57\u55e6\u4e2a\u534a\u5929\u83b7\u5f97\u4e86\uff0c\u7136\u540e\u5c31\u662f\u4e00\u4e2a\u6b7b\u5faa\u73af\uff0c\u4e0d\u65ad\u7684\u5c1d\u8bd5grab\uff0c\u4e8b\u4ef6\u5462\u5219\u901a\u8fc7key-press-event\u4f20\u9012\u7ed9\u5bf9\u5e94\u7684window\uff0c\u91cc\u9762 GDK_OWNERSHIP_WINDOW \u5c31\u662f\u6307\u5b9a\u4e86\u8981grab \u7684\u4e8b\u4ef6\u662f\u9488\u5bf9\u8fd9\u4e2awindow\u7684\u3002\u540e\u9762\u7684mask\u5219\u662f\u6307\u5b9a\u4e86\u8981grab\u4ec0\u4e48\u6837\u7684\u4e8b\u4ef6\u3002\u8fd9\u91cc\u5c31\u662fkey press\u548ckey release\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u5c31\u662f\uff0c\u5728\u6700\u540e\u8fd8\u9700\u8981\u7528\u00a0 gdk_device_ungrab \u6765\u7ed3\u675fgrab\u7684\u5f71\u54cd\u3002<\/p>\n<p>P. S.<\/p>\n<p>\u5f53\u7136\u6211\u5199\u5b8c\u4e5f\u4e0d\u4f1a\u8ba4\u4e3a\u8fd9\u6837\u7684\u6587\u5b57\u6709\u4ec0\u4e48\u76f4\u63a5\u5e2e\u52a9\uff0c\u4f60\u89c9\u5f97\u6709\u4ec0\u4e48\u5e2e\u52a9\u5417\uff1f\u6211\u89c9\u5f97\u6ca1\u6709\uff0c\u6211\u5199\u4e86\u8fd9\u4e48\u4e45\u4ee3\u7801\u4e4b\u540e\uff0c\u6211\u89c9\u5f97\u53ea\u8981\u7ed9\u6211\u6587\u6863\uff0c\u518d\u6ca1\u4ec0\u4e48\u5916\u529b\u5e2e\u52a9\u4e0b\u518d\u5199\u8fd9\u4e9b\u5185\u5bb9\u5bf9\u6211\u6765\u8bf4\u5c31\u50cf\u547c\u5438\u4e00\u6837\u7b80\u5355\u3002\u4e00\u6765\u6211\u4e5f\u4e0d\u77e5\u9053\u60f3\u8981\u4e86\u89e3\u7684\u4eba\u9700\u8981\u77e5\u9053\u4ec0\u4e48\uff0c\u56e0\u4e3a\u7f16\u7a0b\u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u81ea\u5b66\u6210\u624d\u7684\u5de5\u4f5c\u3002\u5982\u679c\u4f60\u5728\u5927\u5b66\u5b66\u4e60\u5b66\u4e60\u8fc7\u6bd4\u5982\u6570\u636e\u7ed3\u6784\uff0c\u7b97\u6cd5\u8bbe\u8ba1\u7b49\u7b49\u8bfe\u7a0b\uff0c\u4f60\u53ef\u80fd\u4e5f\u6ce8\u610f\u5230\u4e86\u8001\u5e08\u662f\u4ece\u6765\u4e0d\u6559\u7ed9\u4f60\u5177\u4f53\u7f16\u7a0b\u7684\u6280\u5de7\u7684\uff0c\u5982\u679c\u5984\u56fe\u5149\u662f\u770b\u7740\u4ee3\u7801\u800c\u4e0d\u53bb\u5b9e\u9645\u5c1d\u8bd5\u505a\u70b9\u4ec0\u4e48\uff0c\u4f60\u4e00\u5b9a\u6b7b\u5f97\u5f88\u60e8\u3002<\/p>\n<p>\u6709\u95ee\u9898\u7559\u8a00\u662f\u6b22\u8fce\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6240\u8c13\u7684\u5177\u4f53\u7c7b\u7684\u5b9e\u73b0\uff0c\u5176\u5b9e\u8fd9\u4e2aWidget\u529f\u80fd\u4e0d\u5f97\u4e0d\u8bf4\u662fGtk\u91cc\u9762\u7f3a\u5c11\u7684\u529f\u80fd\uff0c\u867d\u7136\u5176\u5b9eQt\u91cc\u9762\u4e5f\u6ca1\uff0c\u4e0d\u8fc7\u6211\u5728\u5199\u4ee3\u7801\u7684\u65f6\u5019\u53ef\u4ee5\u6ca1\u4ec0\u4e48\u987e\u8651\u7684\u7528 KDE \u63d0\u4f9b\u7684 UI \u5e93\uff0c\u4e8e\u662f\u6211\u53c8\u723d\u4e86\u3002 \u8fd9\u6b21\u7684Widget\u5c31\u662f\u4e00\u4e2a\u6355\u83b7\u5feb\u6377\u952e\u7528\u7684Widget\uff0c\u5177\u4f53\u91cc\u9762\u4ee3\u7801\u7684\u5b9e\u73b0\u6211\u662f\u5f53\u521d\u4ececcsm\uff08compiz\u90a3\u4e2a\u914d\u7f6e\u5de5\u5177\uff09\u91cc\u9762\u7684python\u4ee3\u7801\u7ffb\u8bd1\u8fc7\u6765\u7684\uff0c\u554a\u4e00\u60f3\u8d77\u90a3\u4e2a\u9752\u6da9\u7684\u5e74\u4ee3\u2026\u2026 \u76f8\u4fe1\u8fd9\u662f\u4e2a\u4eba\u6c11\u7fa4\u4f17\u559c\u95fb\u4e50\u89c1\u7684Widget\u3002 \u539f\u7406\u5f88\u7b80\u5355\uff0c\u672c\u8eab\u662f\u4e00\u4e2abutton\uff0cbutton\u6309\u4e0b\u65f6\u663e\u793a\u4e00\u4e2awindow\uff0cwindow\u8d1f\u8d23\u6355\u6349\u6309\u952e\uff0c\u6355\u6349\u5230\u7684\u6309\u952e\u518d\u5b58\u8d77\u6765\u3002 \u5f53\u7136\u6211\u7684\u5b9e\u73b0\u91cc\u9762\u4f7f\u7528\u4e86\u4e00\u4e9bFcitx\u81ea\u5df1\u7684parse\u548ctoString\u7684\u51fd\u6570\uff0c\u4f60\u5f53\u7136\u5efa\u8bae\u4f7f\u7528GtkAccelerator\u7684\u65b9\u5f0f \u6765\u8fdb\u884cparse\uff08\u5982\u679c\u4f60\u9700\u8981\u5b57\u7b26\u4e32\u7684\u8bdd\uff09\u3002 https:\/\/github.com\/fcitx\/fcitx-configtool\/blob\/master\/gtk3\/keygrab.h https:\/\/github.com\/fcitx\/fcitx-configtool\/blob\/master\/gtk3\/keygrab.c \u5177\u4f53\u7684\u5b9e\u73b0\u5c31\u662f\u4e0a\u9762\u7684\u4ee3\u7801\uff08\u4e8e\u662f\u6211\u8fd8\u770b\u5230\u5f53\u521d\u6709\u4e9b\u86cb\u75bc\u7684\u6ce8\u91ca\u2026\u2026\uff09 \u9996\u5148\u5c31\u662f\u6211\u7ee7\u627f\u4e86\u4e00\u4e2aGtkButton\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2aSignal\uff0c\u89e6\u53d1\u6309\u952e\u5728\u53d8\u5316\u65f6\u7684\u4e8b\u4ef6\u3002 \u00a0\u00a0\u00a0 gtk_widget_set_size_request(GTK_WIDGET(keygrabbutton), 150, -1); \u00a0\u00a0\u00a0\u00a0g_signal_connect(G_OBJECT(keygrabbutton), &#8220;clicked&#8221;, (GCallback) begin_key_grab, NULL); \u6309\u952e\u521b\u5efa\u65f6\uff0c\u7ed1\u4e86\u4e00\u4e2asignal\u7ed9clicked\u4e8b\u4ef6\uff0c\u7528\u6765\u663e\u793a\u4e00\u4e2apopup\u3002 \u5728clicked\u91cc\u9762\u7684\u56de\u8c03\u51fd\u6570\u4e2d\u3002 \u00a0\u00a0\u00a0\u00a0KeyGrabButton* b = KEYGRAB_BUTTON(self); \u00a0\u00a0\u00a0 b-&gt;popup = popup_new(GTK_WIDGET(self), _(&#8220;Please press the new key combination&#8221;), FALSE); &hellip; <a href=\"https:\/\/www.csslayer.info\/wordpress\/gtk-2\/my-gtk-tutorial-3\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[184],"tags":[],"class_list":["post-1638","post","type-post","status-publish","format-standard","hentry","category-gtk-2"],"_links":{"self":[{"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/posts\/1638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/comments?post=1638"}],"version-history":[{"count":1,"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/posts\/1638\/revisions"}],"predecessor-version":[{"id":1639,"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/posts\/1638\/revisions\/1639"}],"wp:attachment":[{"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/media?parent=1638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/categories?post=1638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.csslayer.info\/wordpress\/wp-json\/wp\/v2\/tags?post=1638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}