第一个GTK程序：中国农历 之一

这个程序就是使用lunar-calendar控件，然后显示出农历来。

先用glade-2画出一个日历窗口，设置窗口的销毁事件为调用gtk_main_quit函数，设置一下窗口图标，然后生成代码

<?xml version="1.0" standalone="no"?> <!--*- mode: xml -*-->
<!DOCTYPE glade-interface SYSTEM "http://glade.gnome.org/glade-2.0.dtd">

<glade-interface>

<widget class="GtkWindow" id="lunarcalendar">
  <property name="visible">True</property>
  <property name="title" translatable="yes">Lunar Calendar</property>
  <property name="type">GTK_WINDOW_TOPLEVEL</property>
  <property name="window_position">GTK_WIN_POS_NONE</property>
  <property name="modal">False</property>
  <property name="resizable">True</property>
  <property name="destroy_with_parent">False</property>
  <property name="icon">lunarcalendar.png</property>
  <property name="decorated">True</property>
  <property name="skip_taskbar_hint">False</property>
  <property name="skip_pager_hint">False</property>
  <property name="type_hint">GDK_WINDOW_TYPE_HINT_NORMAL</property>
  <property name="gravity">GDK_GRAVITY_NORTH_WEST</property>
  <property name="focus_on_map">True</property>
  <property name="urgency_hint">False</property>
  <signal name="destroy" handler="gtk_main_quit" last_modification_time="Sat, 20 Apr 2013 11:12:31 GMT"/>

  <child>
    <widget class="GtkCalendar" id="calendar1">
      <property name="visible">True</property>
      <property name="can_focus">True</property>
      <property name="display_options">GTK_CALENDAR_SHOW_HEADING|GTK_CALENDAR_SHOW_DAY_NAMES|GTK_CALENDAR_NO_MONTH_CHANGE|GTK_CALENDAR_SHOW_WEEK_NUMBERS|GTK_CALENDAR_SHOW_DETAILS</property>
    </widget>
  </child>
</widget>

</glade-interface>

生成的源代码文件有：

src/callbacks.c
callbacks.h
interface.c
interface.h
src/main.c
src/Makefile.am
support.c
support.h

support.c/.h文件中就是一些支撑函数，一般不用管

我们需要关注就是interface.c/.h，这个文件就是创建控件的函数。

按照lunar-calendar说明，将interface.c中调用gtk_calendar_new替换成lunar_calendar_new，同时增加lunar-calendar/lunar-calendar.h的包含

修改完后的源代码如下：

生成并修改后的interface.c文件

/*
 * DO NOT EDIT THIS FILE - it is generated by Glade.
 */

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>

#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <lunar-calendar/lunar-calendar.h> 

#include "callbacks.h"
#include "interface.h"
#include "support.h"

#define GLADE_HOOKUP_OBJECT(component,widget,name) \
  g_object_set_data_full (G_OBJECT (component), name, \
    gtk_widget_ref (widget), (GDestroyNotify) gtk_widget_unref)

#define GLADE_HOOKUP_OBJECT_NO_REF(component,widget,name) \
  g_object_set_data (G_OBJECT (component), name, widget)

GtkWidget*
create_lunarcalendar (void)
{
  GtkWidget *lunarcalendar;
  GdkPixbuf *lunarcalendar_icon_pixbuf;
  GtkWidget *calendar1;

  lunarcalendar = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_widget_set_name (lunarcalendar, "lunarcalendar");
  gtk_window_set_title (GTK_WINDOW (lunarcalendar), _("Lunar Calendar"));
  lunarcalendar_icon_pixbuf = create_pixbuf ("lunarcalendar.png");
  if (lunarcalendar_icon_pixbuf)
    {
      gtk_window_set_icon (GTK_WINDOW (lunarcalendar), lunarcalendar_icon_pixbuf);
      gdk_pixbuf_unref (lunarcalendar_icon_pixbuf);
    }

  calendar1 = lunar_calendar_new ();
  gtk_widget_set_name (calendar1, "calendar1");
  gtk_widget_show (calendar1);
  gtk_container_add (GTK_CONTAINER (lunarcalendar), calendar1);
  gtk_calendar_display_options (GTK_CALENDAR (calendar1),
                                GTK_CALENDAR_SHOW_HEADING
                                | GTK_CALENDAR_SHOW_DAY_NAMES
                                | GTK_CALENDAR_NO_MONTH_CHANGE
                                | GTK_CALENDAR_SHOW_WEEK_NUMBERS);

  g_signal_connect ((gpointer) lunarcalendar, "destroy",
                    G_CALLBACK (gtk_main_quit),
                    NULL);

  /* Store pointers to all widgets, for use by lookup_widget(). */
  GLADE_HOOKUP_OBJECT_NO_REF (lunarcalendar, lunarcalendar, "lunarcalendar");
  GLADE_HOOKUP_OBJECT (lunarcalendar, calendar1, "calendar1");

  return lunarcalendar;
}