Gtk+实现非规则按钮的不同状态图片切换

实现非规则按钮的不同状态图片切换。PNG透明效果的按钮

只是一些技术验证的代码，自己去好好封装一下就ok拉。

#include

gint mouse_event_handle(GtkWidget *widget, GdkEventButton *event, gpointer data)

{

switch(event->button) {

case 1:

printf("Left ");

break;

case 2:

printf("Middle ");

break;

case 3:

printf("Right ");

break;

default:

printf("Unknown ");

}

GdkPixbuf *pixbuf;

GdkPixmap *pixmap;

GdkBitmap *bitmap;

GtkWidget *oldImage;

GtkWidget *newImage;

switch(event->type){

case GDK_BUTTON_PRESS:

printf("Mouse button press at (%.2f, %.2f)\n", event->x, event->y);

oldImage = GTK_WIDGET(gtk_container_children(GTK_CONTAINER(widget))->data);

gtk_object_ref(GTK_OBJECT(oldImage));

gtk_container_remove(GTK_CONTAINER(widget), oldImage);

pixbuf = gdk_pixbuf_new_from_file ("./press.png", NULL);

newImage = gtk_image_new_from_pixbuf (pixbuf);

gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &bitmap, 128);

gtk_widget_shape_combine_mask(widget, bitmap, 0, 0);

gtk_container_add(GTK_CONTAINER(widget), newImage);

gtk_widget_show(newImage);

break;

case GDK_BUTTON_RELEASE:

printf("Mouse button release at (%.2f, %.2f)\n", event->x, event->y);

oldImage = GTK_WIDGET(gtk_container_children(GTK_CONTAINER(widget))->data);

gtk_object_ref(GTK_OBJECT(oldImage));

gtk_container_remove(GTK_CONTAINER(widget), oldImage);

pixbuf = gdk_pixbuf_new_from_file ("./enter.png", NULL);

newImage = gtk_image_new_from_pixbuf (pixbuf);

gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &bitmap, 128);

gtk_widget_shape_combine_mask(widget, bitmap, 0, 0);

gtk_container_add(GTK_CONTAINER(widget), newImage);

gtk_widget_show(newImage);

break;

case GDK_ENTER_NOTIFY:

printf("Mouse enter.\n");

oldImage = GTK_WIDGET(gtk_container_children(GTK_CONTAINER(widget))->data);

gtk_object_ref(GTK_OBJECT(oldImage));

gtk_container_remove(GTK_CONTAINER(widget), oldImage);

pixbuf = gdk_pixbuf_new_from_file ("./enter.png", NULL);

newImage = gtk_image_new_from_pixbuf (pixbuf);

gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &bitmap, 128);

gtk_widget_shape_combine_mask(widget, bitmap, 0, 0);

gtk_container_add(GTK_CONTAINER(widget), newImage);

gtk_widget_show(newImage);

break;

case GDK_LEAVE_NOTIFY:

printf("Mouse leave.\n");

oldImage = GTK_WIDGET(gtk_container_children(GTK_CONTAINER(widget))->data);

gtk_object_ref(GTK_OBJECT(oldImage));

gtk_container_remove(GTK_CONTAINER(widget), oldImage);

pixbuf = gdk_pixbuf_new_from_file ("./leave.png", NULL);

newImage = gtk_image_new_from_pixbuf (pixbuf);

gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &bitmap, 128);

gtk_widget_shape_combine_mask(widget, bitmap, 0, 0);

gtk_container_add(GTK_CONTAINER(widget), newImage);

gtk_widget_show(newImage);

break;

default:

printf("\n");

break;

}

return FALSE;

}

int main(int argc, char *argv[])

{

GtkWidget *window = NULL;

GdkPixbuf *pixbuf = NULL;

GdkPixmap *pixmap = NULL;

GdkBitmap *bitmap = NULL;

GtkWidget *image = NULL;

GtkWidget *eventbox = NULL;

GtkWidget *fixed = NULL;

gtk_init(&argc,&argv);

/* Create the window */

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

gtk_window_set_title(GTK_WINDOW(window),"ZQButton Demo");

gtk_widget_set_events(window, GDK_SCROLL_MASK);

gtk_widget_set_app_paintable(window,TRUE);

gtk_widget_realize (window);

//gtk_window_fullscreen(GTK_WINDOW(window));

gtk_widget_set_size_request(window, 800, 600);

g_signal_connect (G_OBJECT (window), "delete_event", G_CALLBACK (gtk_main_quit), NULL);

fixed = gtk_fixed_new();

gtk_container_add (GTK_CONTAINER(window), fixed);

pixbuf = gdk_pixbuf_new_from_file ("./bg.jpg",NULL);

pixmap = gdk_pixmap_new (fixed->window, gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf), -1);

gdk_pixbuf_render_to_drawable(pixbuf, pixmap,

fixed->style->fg_gc[GTK_STATE_NORMAL],

0,0,0,0,

gdk_pixbuf_get_width(pixbuf),

gdk_pixbuf_get_height(pixbuf),

GDK_RGB_DITHER_NORMAL,0,0);

g_object_unref(pixbuf);

gdk_window_set_back_pixmap (fixed->window, pixmap, FALSE);

gtk_widget_show(fixed);

eventbox=gtk_event_box_new();

gtk_widget_set_events(eventbox, GDK_MOTION_NOTIFY | GDK_BUTTON_PRESS | GDK_BUTTON_RELEASE

| GDK_ENTER_NOTIFY | GDK_LEAVE_NOTIFY);

g_signal_connect(G_OBJECT(eventbox), "button_press_event", GTK_SIGNAL_FUNC(mouse_event_handle), NULL);

g_signal_connect(G_OBJECT(eventbox), "button_release_event", GTK_SIGNAL_FUNC(mouse_event_handle), NULL);

g_signal_connect(G_OBJECT(eventbox), "enter_notify_event", GTK_SIGNAL_FUNC(mouse_event_handle), NULL);

g_signal_connect(G_OBJECT(eventbox), "leave_notify_event", GTK_SIGNAL_FUNC(mouse_event_handle), NULL);

gtk_fixed_put (GTK_FIXED (fixed), eventbox, 10, 10);

pixbuf = gdk_pixbuf_new_from_file ("./leave.png", NULL);

image = gtk_image_new_from_pixbuf (pixbuf);

gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &bitmap, 128);

gtk_widget_shape_combine_mask(eventbox, bitmap, 0, 0);

gtk_container_add(GTK_CONTAINER(eventbox), image);

gtk_widget_show(image);

gtk_widget_show(eventbox);

gtk_widget_show(window);

gtk_main();

return FALSE;

}