gtk--文本视图(GtkTexView Widget)

/*
文本视图GtkTexView构件
各种格式设置，如：边距、自动换行、前景色、字体等
*/

#include <gtk/gtk.h>

int main( int argc, char *argv[])
{
    GtkWidget *window;
    GtkWidget *view;
    GtkWidget *vbox;
    GtkWidget *fix;

    GtkTextBuffer *buffer;
    GtkTextIter start, end;
    GtkTextIter iter;

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
    gtk_window_set_default_size(GTK_WINDOW(window), 250, 200);
    gtk_window_set_title(GTK_WINDOW(window), "TextView");
    gtk_container_set_border_width(GTK_CONTAINER(window), 5);
    GTK_WINDOW(window)->allow_shrink = TRUE;

    vbox = gtk_vbox_new(FALSE, 0);
    gtk_widget_set_size_request (vbox, 200, 200);

    fix = gtk_fixed_new ();
    gtk_widget_set_name (fix, "fix");
    gtk_widget_show (fix);
    gtk_container_add (GTK_CONTAINER (vbox), fix);    

    view = gtk_text_view_new();
    gtk_box_pack_start(GTK_BOX(vbox), view, TRUE, TRUE, 0);

    // 可编辑属性设置
     //gtk_text_view_set_editable(GTK_TEXT_VIEW(view), FALSE);
    //gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(view), FALSE);

    buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));

    // 创建文本格式类型
     gtk_text_buffer_create_tag(buffer, "gap",
        "pixels_above_lines", 30, NULL);

    // 左边距
     gtk_text_buffer_create_tag(buffer, "lmarg", 
        "left_margin", 5, NULL);

    // 水平居中
    gtk_text_buffer_create_tag(buffer, "jCenter", 
        "justification", GTK_JUSTIFY_CENTER, NULL);

    // 前景
     gtk_text_buffer_create_tag(buffer, "blue_fg", 
        "foreground", "blue",  NULL);   

    // 字体背景
     gtk_text_buffer_create_tag(buffer, "gray_bg", 
        "background", "gray", NULL); 

    // 斜体
     gtk_text_buffer_create_tag(buffer, "italic", 
        "style", PANGO_STYLE_ITALIC, NULL);

    // 粗体
     gtk_text_buffer_create_tag(buffer, "bold", 
        "weight", PANGO_WEIGHT_BOLD, NULL);

    // 字体
     gtk_text_buffer_create_tag (buffer, "font1",
        "font", "[Consolas][PANGO_STYLE_OBLIQUE | PANGO_WEIGHT_BOLD][28]",
        NULL); 

    // 自动换行
     gtk_text_buffer_create_tag(buffer, "wrap_word", 
        "wrap-mode", GTK_WRAP_WORD_CHAR, NULL);

    // 设置到起始位置
     gtk_text_buffer_get_iter_at_offset(buffer, &iter, 0);

    // 插入文本
     gtk_text_buffer_insert(buffer, &iter, "Plain text
", -1);

    gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, 
        "Colored Text
", -1, "blue_fg", "lmarg", "wrap_word", NULL);

    gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, 
        "Text with colored background
", -1, "lmarg", "gray_bg", "jCenter", NULL);

    gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, 
        "Text in italics
", -1, "italic", "lmarg", NULL);

    gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, 
        "Bold text
", -1, "bold", "lmarg", NULL);

    gtk_container_add(GTK_CONTAINER(window), vbox);

    // 未激活
     //gtk_widget_set_sensitive(view, FALSE);

    g_signal_connect_swapped(G_OBJECT(window), "destroy",
        G_CALLBACK(gtk_main_quit), G_OBJECT(window));

    gtk_widget_show_all(window);

    gtk_main();

    return 0;
}