莱芜网吧,泉州seo排名公司,led 网站模板,企业网站的建立方法gnome-builder创建的程序#xff0c;在工程树中有三个重要程序#xff1a;main主程序、application应用程序和window主窗口程序。main整个程序的起始#xff0c;它会操作application生产应用环境#xff0c;application会操作window生成主窗口#xff0c;于是就有了 appli…gnome-builder创建的程序在工程树中有三个重要程序main主程序、application应用程序和window主窗口程序。main整个程序的起始它会操作application生产应用环境application会操作window生成主窗口于是就有了 application 和 window 的 handle驾驭整个程序的运行。 新的主窗口生成主要改动 withcambla-window.c 的内容其它的暂时先不用动。
1- 改动窗体结构将用到的widget全部放入窗体结构中(初创时只有个label)。
struct _WithcamblaWindow
{GtkApplicationWindow parent_instance;/* Template widgets */GtkHeaderBar *header_bar;GtkLabel *label1;GtkButton *button1;GtkButton *button2;GtkButton *button3;GtkGrid *grid1;
};
2- 将widget绑定到template上
static void
withcambla_window_class_init (WithcamblaWindowClass *klass)
{GtkWidgetClass *widget_class GTK_WIDGET_CLASS (klass);gtk_widget_class_set_template_from_resource (widget_class, /org/mongnewer/test/withcambla-window.ui);gtk_widget_class_bind_template_child (widget_class, WithcamblaWindow, header_bar);gtk_widget_class_bind_template_child (widget_class, WithcamblaWindow, label1);gtk_widget_class_bind_template_child (widget_class, WithcamblaWindow, button1);gtk_widget_class_bind_template_child (widget_class, WithcamblaWindow, button2);gtk_widget_class_bind_template_child (widget_class, WithcamblaWindow, button3);gtk_widget_class_bind_template_child (widget_class, WithcamblaWindow, grid1);
}
3- 在窗口初始化中加入widget控制信号建立起widget事件关系。
static void
withcambla_window_init (WithcamblaWindow *self)
{gtk_widget_init_template (GTK_WIDGET (self));g_signal_connect(GTK_BUTTON(self-button1), clicked, G_CALLBACK(on_button1_click), self);g_signal_connect(GTK_BUTTON(self-button2), clicked, G_CALLBACK(on_button2_click), self);g_signal_connect(GTK_BUTTON(self-button3), clicked, G_CALLBACK(on_button3_click), self);
}
至此主窗口程序就改动好了。
button1_click回调函数在label上显示 hello 字样因主使用markup 不需要 pango 了。
static void
on_button1_click(GtkWidget *widget, WithcamblaWindow *self)
{gtk_label_set_markup (GTK_LABEL(self-label1),span foregroundred underlinesingle underline_colorblue font_descTimes italic 48Hello!/span);GtkWidget *inlabel gtk_button_get_child(GTK_BUTTON(self-button1));gtk_label_set_markup (GTK_LABEL(inlabel),span foregroundred underlinesingle underline_colorblue font_descTimes italic 48Hello!/span);
}
button2_click回调函数用程序方式直接写出一个窗体并作为主窗体的子窗体显示。
static void
on_button2_click(GtkWidget *widget, GtkWindow *self)
{GtkWidget *window gtk_window_new ();gtk_window_set_default_size (GTK_WINDOW(window), 600, 400);gtk_window_set_title (GTK_WINDOW(window), A popup window by button_click);GtkWidget *box gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);gtk_box_set_homogeneous (GTK_BOX(box), TRUE);gtk_window_set_child (GTK_WINDOW(window), GTK_WIDGET(box));GtkWidget *button gtk_button_new_with_label(Pressed!);gtk_widget_set_visible (GTK_WIDGET(button), TRUE);g_signal_connect(G_OBJECT(button), clicked, G_CALLBACK(closewindow), window);g_signal_connect(G_OBJECT(window), destroy, G_CALLBACK(closewindow), window);GtkWidget *spacer1 gtk_label_new();gtk_box_append (GTK_BOX(box), GTK_WIDGET(spacer1));gtk_box_append (GTK_BOX(box), GTK_WIDGET(button));GtkWidget *spacer2 gtk_label_new();gtk_box_append (GTK_BOX(box), GTK_WIDGET(spacer2));gtk_window_set_resizable (GTK_WINDOW(window), FALSE);gtk_window_set_modal (GTK_WINDOW(window), TRUE);gtk_window_set_transient_for (GTK_WINDOW(window), GTK_WINDOW(self));gtk_widget_set_visible(window, TRUE);
}
button3_click回调函数产生一个TEST_TYPE_WINDOW定义的子窗口并作为主窗口的子窗口显示。它不是由程序代码实现的而是由 ui 文件实现的需要另外的popwindowf.h和popwindowf.c实现。如果只是简单窗口这种方式比直接代码实现窗口显得啰嗦一些。
static void
on_button3_click(GtkWidget *widget, GtkWindow *self)
{GtkWindow *window;window g_object_new (TEST_TYPE_WINDOW,default-height, 550, default-width, 800,title, Nice window!,NULL);gtk_window_set_transient_for (window, self);gtk_window_present (window);
}
代码实现的子窗口 ui实现的子窗口(直接改了一下主窗口的ui它们看上去很相似) 七、用菜单命令操作实现上述两个子窗口
菜单项操作与button信号操作有些不同首先在主窗口的ui中加上新的菜单项。app.ghello, app.popwin1, app.popwin2 menu idprimary_menusectionitemattribute nameactionapp.preferences/attributeattribute namelabel translatableyes_Preferences/attribute/itemitemattribute nameactionwin.show-help-overlay/attributeattribute namelabel translatableyes_Keyboard Shortcuts/attribute/itemitemattribute nameactionapp.about/attributeattribute namelabel translatableyes_About gnomeapp/attribute/itemitemattribute nameactionapp.ghello/attributeattribute namelabel translatableyes_gPrint Hello/attribute/itemitemattribute nameactionapp.popwin/attributeattribute namelabel translatableyes_popup window/attribute/itemitemattribute nameactionapp.popwin1/attributeattribute namelabel translatableyes_popup window 1/attribute/itemitemattribute nameactionapp.popwin2/attributeattribute namelabel translatableyes_popup window 2/attribute/item/section/menu菜单项的操作是withcambla-application.c初始化时关联的它们都要挂到action map上去然后与回调函数建立联系快捷键也是在这个地方关联的。
static void
withcambla_application_init (WithcamblaApplication *self)
{g_autoptr (GSimpleAction) quit_action g_simple_action_new (quit, NULL);g_signal_connect_swapped (quit_action, activate, G_CALLBACK (g_application_quit), self);g_action_map_add_action (G_ACTION_MAP (self), G_ACTION (quit_action));g_autoptr (GSimpleAction) about_action g_simple_action_new (about, NULL);g_signal_connect (about_action, activate, G_CALLBACK (withcambla_application_show_about), self);g_action_map_add_action (G_ACTION_MAP (self), G_ACTION (about_action));g_autoptr (GSimpleAction) ghello_action g_simple_action_new (ghello, NULL);g_signal_connect (ghello_action, activate, G_CALLBACK (ghello), self);g_action_map_add_action (G_ACTION_MAP (self), G_ACTION (ghello_action));g_autoptr (GSimpleAction) popwin_action g_simple_action_new (popwin, NULL);g_signal_connect (popwin_action, activate, G_CALLBACK (popwin), self);g_action_map_add_action (G_ACTION_MAP (self), G_ACTION (popwin_action));g_autoptr (GSimpleAction) popwin1_action g_simple_action_new (popwin1, NULL);g_signal_connect (popwin1_action, activate, G_CALLBACK (popwin1), self);g_action_map_add_action (G_ACTION_MAP (self), G_ACTION (popwin1_action));g_autoptr (GSimpleAction) popwin2_action g_simple_action_new (popwin2, NULL);g_signal_connect (popwin2_action, activate, G_CALLBACK (popwin2), self);g_action_map_add_action (G_ACTION_MAP (self), G_ACTION (popwin2_action));gtk_application_set_accels_for_action (GTK_APPLICATION (self),app.ghello,(const char *[]) {ControlSuperAlth,NULL,});gtk_application_set_accels_for_action (GTK_APPLICATION (self),app.quit,(const char *[]) {primaryq,NULL,});
}popwin回调函数用代码创建子窗体可以用button创建的好个习练时也可以考贝一个改一下用。
static void
popwin(GSimpleAction *action,GVariant *parameter,gpointer user_data)
{WithcamblaApplication *self WITHCAMBLA_APPLICATION (user_data);GtkWindow *windowapp gtk_application_get_active_window (GTK_APPLICATION (self));GtkWidget *window gtk_window_new ();gtk_window_set_default_size (GTK_WINDOW(window), 600, 400);gtk_window_set_title (GTK_WINDOW(window), A popup window called from Menu);//gtk_window_set_application (GTK_WINDOW(window), GTK_APPLICATION (self));GtkWidget *box gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);gtk_box_set_homogeneous (GTK_BOX(box), TRUE);gtk_window_set_child (GTK_WINDOW(window), GTK_WIDGET(box));GtkWidget *button gtk_button_new_with_label(A new button);gtk_widget_set_visible (GTK_WIDGET(button), TRUE);g_signal_connect(G_OBJECT(button), clicked, G_CALLBACK(closewindow), window);g_signal_connect(G_OBJECT(window), destroy, G_CALLBACK(closewindow), window);GtkWidget *spacer1 gtk_label_new();gtk_box_append (GTK_BOX(box), GTK_WIDGET(spacer1));gtk_box_append (GTK_BOX(box), GTK_WIDGET(button));GtkWidget *spacer2 gtk_label_new();gtk_box_append (GTK_BOX(box), GTK_WIDGET(spacer2));gtk_window_set_resizable (GTK_WINDOW(window), FALSE);gtk_window_set_modal (GTK_WINDOW(window), TRUE);gtk_window_set_transient_for (GTK_WINDOW(window), GTK_WINDOW(windowapp));gtk_widget_set_visible(window, TRUE);
} popwin1回调函数是通过测试调用一个子过程由子过程代码创建的子窗口。
static void
popwin1(GSimpleAction *action,GVariant *parameter,gpointer user_data)
{WithcamblaApplication *self WITHCAMBLA_APPLICATION (user_data);GtkWindow *windowapp gtk_application_get_active_window (GTK_APPLICATION (self));popwinsub(NULL, windowapp);
} popwin2回调函数是调用popwindowf.h和popwindowf.c程序实现的。
static void
popwin2(GSimpleAction *action,GVariant *parameter,gpointer user_data)
{WithcamblaApplication *self WITHCAMBLA_APPLICATION (user_data);GtkWindow *windowapp gtk_application_get_active_window (GTK_APPLICATION (self));//popwinsubf(NULL, windowapp);/* Get the current window or create one if necessary. */GtkWindow *window;window g_object_new (TEST_TYPE_WINDOW,default-height, 550, default-width, 800,title, Nice window!,NULL);gtk_window_set_transient_for (window, windowapp);/* Ask the window manager/compositor to present the window. */gtk_window_present (window);
} 还有些内容写在下篇笔记中
