menurow.c

xmms-1.2.10.tar.gz学习使用的就下吧

/*  XMMS - Cross-platform multimedia player
 *  Copyright (C) 1998-2000  Peter Alm, Mikael Alm, Olle Hallnas, Thomas Nilsson and 4Front Technologies
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
#include "xmms.h"

void menurow_draw(Widget * w)
{
	MenuRow *mr = (MenuRow *) w;

	GdkPixmap *obj = mr->mr_widget.parent;

	if (mr->mr_selected == MENUROW_NONE)
	{
		if (cfg.always_show_cb || mr->mr_bpushed)
			skin_draw_pixmap(obj, mr->mr_widget.gc,
					 mr->mr_skin_index,
					 mr->mr_nx, mr->mr_ny,
					 mr->mr_widget.x, mr->mr_widget.y, 8, 43);
		else
			skin_draw_pixmap(obj, mr->mr_widget.gc,
					 mr->mr_skin_index,
					 mr->mr_nx + 8, mr->mr_ny,
					 mr->mr_widget.x, mr->mr_widget.y, 8, 43);
	}
	else
	{
		skin_draw_pixmap(obj, mr->mr_widget.gc,
				 mr->mr_skin_index,
				 mr->mr_sx + ((mr->mr_selected - 1) * 8), mr->mr_sy,
				 mr->mr_widget.x, mr->mr_widget.y, 8, 43);
	}
	if (cfg.always_show_cb || mr->mr_bpushed)
	{
		if (mr->mr_always_selected)
			skin_draw_pixmap(obj, mr->mr_widget.gc,
					 mr->mr_skin_index,
					 mr->mr_sx + 8, mr->mr_sy + 10,
					 mr->mr_widget.x, mr->mr_widget.y + 10, 8, 8);
		if (mr->mr_doublesize_selected)
			skin_draw_pixmap(obj, mr->mr_widget.gc,
					 mr->mr_skin_index,
					 mr->mr_sx + 24, mr->mr_sy + 26,
					 mr->mr_widget.x, mr->mr_widget.y + 26, 8, 8);
	}

}

MenuRowItem menurow_find_selected(MenuRow * mr, gint x, gint y)
{
	MenuRowItem ret = MENUROW_NONE;

	x -= mr->mr_widget.x;
	y -= mr->mr_widget.y;
	if (x > 0 && x < 8)
	{
		if (y >= 0 && y <= 10)
			ret = MENUROW_OPTIONS;
		if (y >= 10 && y <= 17)
			ret = MENUROW_ALWAYS;
		if (y >= 18 && y <= 25)
			ret = MENUROW_FILEINFOBOX;
		if (y >= 26 && y <= 33)
			ret = MENUROW_DOUBLESIZE;
		if (y >= 34 && y <= 42)
			ret = MENUROW_VISUALIZATION;
	}
	return ret;
}

void menurow_button_press(GtkWidget * w, GdkEventButton * event, gpointer data)
{
	MenuRow *mr = (MenuRow *) data;

	if (event->button != 1)
		return;
	if (inside_widget(event->x, event->y, &mr->mr_widget))
	{
		mr->mr_bpushed = TRUE;
		mr->mr_selected = menurow_find_selected(mr, event->x, event->y);
		draw_widget(mr);
		if (mr->mr_change_callback)
			mr->mr_change_callback(mr->mr_selected);
	}
}

void menurow_motion(GtkWidget * w, GdkEventMotion * event, gpointer data)
{
	MenuRow *mr = (MenuRow *) data;

	if (mr->mr_bpushed)
	{
		mr->mr_selected = menurow_find_selected(mr, event->x, event->y);
		draw_widget(mr);
		if (mr->mr_change_callback)
			mr->mr_change_callback(mr->mr_selected);
	}
}

void menurow_button_release(GtkWidget * w, GdkEventButton * event, gpointer data)
{
	MenuRow *mr = (MenuRow *) data;

	if (mr->mr_bpushed)
	{
		mr->mr_bpushed = FALSE;
		if (mr->mr_selected == MENUROW_ALWAYS)
			mr->mr_always_selected = !mr->mr_always_selected;
		if (mr->mr_selected == MENUROW_DOUBLESIZE)
			mr->mr_doublesize_selected = !mr->mr_doublesize_selected;
		if (mr->mr_selected != -1 && mr->mr_release_callback)
			mr->mr_release_callback(mr->mr_selected);
		mr->mr_selected = MENUROW_NONE;
		draw_widget(mr);
	}
}

MenuRow *create_menurow(GList ** wlist, GdkPixmap * parent, GdkGC * gc, gint x, gint y, gint nx, gint ny, gint sx, gint sy, void (*ccb) (MenuRowItem), void (*rcb) (MenuRowItem), SkinIndex si)
{
	MenuRow *mr;

	mr = (MenuRow *) g_malloc0(sizeof (MenuRow));
	mr->mr_widget.parent = parent;
	mr->mr_widget.gc = gc;
	mr->mr_widget.x = x;
	mr->mr_widget.y = y;
	mr->mr_widget.width = 8;
	mr->mr_widget.height = 43;
	mr->mr_widget.visible = 1;
	mr->mr_widget.draw = menurow_draw;
	mr->mr_widget.button_press_cb = menurow_button_press;
	mr->mr_widget.motion_cb = menurow_motion;
	mr->mr_widget.button_release_cb = menurow_button_release;
	mr->mr_nx = nx;
	mr->mr_ny = ny;
	mr->mr_sx = sx;
	mr->mr_sy = sy;
	mr->mr_selected = MENUROW_NONE;
	mr->mr_change_callback = ccb;
	mr->mr_release_callback = rcb;
	mr->mr_skin_index = si;

	add_widget(wlist, mr);
	return mr;
}