/** showgc.c **/
#include <gnome.h>

gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data);
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data);
gint listValues(gpointer data);
static char *functionString(GdkFunction function);
static char *fillString(GdkFill fill);
static char *subwindowString(GdkSubwindowMode mode);
static char *lineStyleString(gint style);
static char *capStyleString(gint style);
static char *joinStyleString(gint style);

#define WIDTH 40
#define HEIGHT 30

int main(int argc,char *argv[])
{
    GtkWidget *app;
    GtkWidget *area;

    gnome_init("showgc","1.0",argc,argv);
    app = gnome_app_new("flasher","Listing GC");
    gtk_signal_connect(GTK_OBJECT(app),"delete_event",
            GTK_SIGNAL_FUNC(eventDelete),NULL);
    gtk_signal_connect(GTK_OBJECT(app),"destroy",
            GTK_SIGNAL_FUNC(eventDestroy),NULL);

    area = gtk_drawing_area_new();
    gtk_widget_set_usize(area,WIDTH,HEIGHT);
    gnome_app_set_contents(GNOME_APP(app),area);
    gtk_signal_connect(GTK_OBJECT(app),"realize",
            GTK_SIGNAL_FUNC(listValues),area);

    gtk_widget_show_all(app);
    gtk_main();
    exit(0);
}
gint listValues(gpointer data)
{
    GtkWidget *widget = GTK_WIDGET(data);
    GdkGC *gc;
    GdkGCValues gcv;

    gc = widget->style->white_gc;
    gdk_gc_get_values(gc,&gcv);

    printf("foreground RGB: %u %u %u (0x%08X)\n",
        gcv.foreground.red,gcv.foreground.green,
        gcv.foreground.blue,(guint)gcv.foreground.pixel);
    printf("background RGB: %u %u %u (0x%08X)\n",
        gcv.background.red,gcv.background.green,
        gcv.background.blue,(guint)gcv.background.pixel);
    printf("font id: %d   ascent: %d   descent: %d\n",
        gdk_font_id(gcv.font),
        gcv.font->ascent,gcv.font->descent);
    printf("pixel drawing function: %s\n",
        functionString(gcv.function));
    printf("fill method: %s\n",fillString(gcv.fill));
    printf("subwindow mode: %s\n",
        subwindowString(gcv.subwindow_mode));
    printf("tiling/stippling origin: (%d,%d)\n",
        gcv.ts_x_origin,gcv.ts_y_origin);
    printf("clipping origin: (%d,%d)\n",
        gcv.clip_x_origin,gcv.clip_y_origin);
    printf("graphic exposures: %s\n",
        gcv.graphics_exposures ? "True" : "False");
    printf("line width: %d\n",gcv.line_width);
    printf("line style: %s\n",
        lineStyleString(gcv.line_style));
    printf("cap style: %s\n",
        capStyleString(gcv.line_style));
    printf("join style: %s\n",
        joinStyleString(gcv.line_style));

    return(TRUE);
}
static char *functionString(GdkFunction function)
{
    switch(function) {
    case GDK_COPY: return("copy");
    case GDK_INVERT: return("invert");
    case GDK_XOR: return("xor");
    case GDK_CLEAR: return("clear");
    case GDK_AND: return("and");
    case GDK_AND_REVERSE: return("and reverse");
    case GDK_AND_INVERT: return("and invert");
    case GDK_NOOP: return("noop");
    case GDK_OR: return("or");
    case GDK_EQUIV: return("equiv");
    case GDK_OR_REVERSE: return("or reverse");
    case GDK_COPY_INVERT: return("copy invert");
    case GDK_OR_INVERT: return("or invert");
    case GDK_NAND: return("nand");
    case GDK_SET: return("set");
    default: return("");
    }
}
static char *fillString(GdkFill fill)
{
    switch(fill) {
    case GDK_SOLID: return("solid");
    case GDK_TILED: return("tiled");
    case GDK_STIPPLED: return("stippled");
    case GDK_OPAQUE_STIPPLED: return("opaque stippled");
    default: return("");
    }
}
static char *subwindowString(GdkSubwindowMode mode)
{
    if(mode == GDK_CLIP_BY_CHILDREN)
        return("clip by children");
    else if(mode == GDK_INCLUDE_INFERIORS)
        return("include inferiors");
    return("");
}
static char *lineStyleString(gint style)
{
    switch(style) {
    case GDK_LINE_SOLID: return("solid");
    case GDK_LINE_ON_OFF_DASH: return("on off dash");
    case GDK_LINE_DOUBLE_DASH: return("double dash");
    default: return("");
    }
}
static char *capStyleString(gint style)
{
    switch(style) {
    case GDK_CAP_NOT_LAST: return("not last");
    case GDK_CAP_BUTT: return("butt");
    case GDK_CAP_ROUND: return("round");
    case GDK_CAP_PROJECTING: return("projecting");
    default: return("");
    }
}
static char *joinStyleString(gint style)
{
    switch(style) {
    case GDK_JOIN_MITER: return("miter");
    case GDK_JOIN_ROUND: return("round");
    case GDK_JOIN_BEVEL: return("bevel");
    default: return("");
    }
}

gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    return(FALSE);
}
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    gtk_main_quit();
    return(0);
}