GTK+-3.0学习笔记(三)——Packing

GTK+-3.0学习笔记(三)——Packing

参考自官方文档

本文基于前两篇文章，主要介绍GTK中的部件打包方式。

所有的打包方式见这篇文章

本文主要使用一个示例代码对Grid方式进行讲解

创建一个grid容器：gtk_grid_new()
为窗口增加子容器：gtk_container_add(GTK_CONTAINER(window), grid);
为Grid容器增加部件：gtk_grid_attach(GTK_GRID(grid), button, left, top, width, hight)，位置由left、top决定，大小由width、hight决定

示例代码：

#include <gtk/gtk.h>

void printHello(GtkWidget *widget, gpointer data);
void activate(GtkApplication *app, gpointer data);

int main(int argc, char *argv[])
{
    
    
	GtkApplication *app = gtk_application_new("org.gtk.example", G_APPLICATION_FLAGS_NONE);
	g_signal_connect(app, "activate", G_CALLBACK(activate), NULL);
	int status = g_application_run(G_APPLICATION(app), argc, argv);
	g_object_unref(app);

	return status;
}

void activate(GtkApplication *app, gpointer data)
{
    
    
	// 创建窗口
	GtkWidget *window = gtk_application_window_new(app);
	gtk_window_set_title(GTK_WINDOW(window), "Packing");
	gtk_container_set_border_width(GTK_CONTAINER(window), 10);
	// 创建grid容器，并将其加入至窗口
	GtkWidget *grid = gtk_grid_new();
	gtk_container_add(GTK_CONTAINER(window), grid);
	// 加入新按钮
	GtkWidget *button = gtk_button_new_with_label("Button_1");
	g_signal_connect(button, "clicked", G_CALLBACK(printHello), NULL);
	gtk_grid_attach(GTK_GRID(grid), button, 0, 0, 1, 1);

	button = gtk_button_new_with_label("Button_2");
	g_signal_connect(button, "clicked", G_CALLBACK(printHello), NULL);
	gtk_grid_attach(GTK_GRID(grid), button, 1, 0, 1, 1);

	button = gtk_button_new_with_label("Quit");
	g_signal_connect_swapped(button, "clicked", G_CALLBACK(gtk_widget_destroy), window);
	gtk_grid_attach(GTK_GRID(grid), button, 0, 1, 2, 1);
	// 展示桌面
	gtk_widget_show_all(window);
}

void printHello(GtkWidget *widget, gpointer data)
{
    
    
	g_print("Hello world!\n");
}