#include "../display/nr-plain-stuff-gdk.h"

#include "sp-color-preview.h"

#define SPCP_DEFAULT_WIDTH 32

#define SPCP_DEFAULT_HEIGHT 11

static void sp_color_preview_class_init (SPColorPreviewClass *klass);

static void sp_color_preview_init (SPColorPreview *image);

static void sp_color_preview_destroy (GtkObject *object);

static void sp_color_preview_size_request (GtkWidget *widget, GtkRequisition *requisition);

static void sp_color_preview_size_allocate (GtkWidget *widget, GtkAllocation *allocation);

static gint sp_color_preview_expose (GtkWidget *widget, GdkEventExpose *event);

static void sp_color_preview_paint (SPColorPreview *cp, GdkRectangle *area);

static GtkWidgetClass *parent_class;

GType sp_color_preview_get_type(void)

{

static GType type = 0;

if (!type) {

static const GTypeInfo info = {

sizeof(SPColorPreviewClass),

NULL, /* base_init */

NULL, /* base_finalize */

(GClassInitFunc) sp_color_preview_class_init,

NULL, /* class_finalize */

NULL, /* class_data */

sizeof(SPColorPreview),

0, /* n_preallocs */

(GInstanceInitFunc) sp_color_preview_init,

0, /* value_table */

};

type = g_type_register_static( GTK_TYPE_WIDGET,

"SPColorPreview",

&info,

static_cast< GTypeFlags > (0) );

}

return type;

}

static void

sp_color_preview_class_init (SPColorPreviewClass *klass)

{

GtkObjectClass *object_class;

GtkWidgetClass *widget_class;

object_class = (GtkObjectClass *) klass;

widget_class = (GtkWidgetClass *) klass;

parent_class = (GtkWidgetClass*)gtk_type_class (GTK_TYPE_WIDGET);

object_class->destroy = sp_color_preview_destroy;

widget_class->size_request = sp_color_preview_size_request;

widget_class->size_allocate = sp_color_preview_size_allocate;

widget_class->expose_event = sp_color_preview_expose;

}

static void

sp_color_preview_init (SPColorPreview *image)

{

gtk_widget_set_has_window (GTK_WIDGET (image), FALSE);

image->rgba = 0xffffffff;

}

static void

sp_color_preview_destroy (GtkObject *object)

{

SPColorPreview *image;

image = SP_COLOR_PREVIEW (object);

if (((GtkObjectClass *) (parent_class))->destroy)

(* ((GtkObjectClass *) (parent_class))->destroy) (object);

}

static void

sp_color_preview_size_request (GtkWidget *widget, GtkRequisition *requisition)

{

SPColorPreview *slider;

slider = SP_COLOR_PREVIEW (widget);

requisition->width = SPCP_DEFAULT_WIDTH;

requisition->height = SPCP_DEFAULT_HEIGHT;

}

static void

sp_color_preview_size_allocate (GtkWidget *widget, GtkAllocation *allocation)

{

SPColorPreview *image;

image = SP_COLOR_PREVIEW (widget);

widget->allocation = *allocation;

if (GTK_WIDGET_DRAWABLE (image)) {

gtk_widget_queue_draw (GTK_WIDGET (image));

}

}

static gint

sp_color_preview_expose (GtkWidget *widget, GdkEventExpose *event)

{

SPColorPreview *cp;

cp = SP_COLOR_PREVIEW (widget);

if (GTK_WIDGET_DRAWABLE (widget)) {

sp_color_preview_paint (cp, &event->area);

}

return TRUE;

}

GtkWidget *

sp_color_preview_new (guint32 rgba)

{

SPColorPreview *image;

image = (SPColorPreview*)gtk_type_new (SP_TYPE_COLOR_PREVIEW);

sp_color_preview_set_rgba32 (image, rgba);

return (GtkWidget *) image;

}

sp_color_preview_set_rgba32 (SPColorPreview *cp, guint32 rgba)

{

cp->rgba = rgba;

if (GTK_WIDGET_DRAWABLE (cp)) {

gtk_widget_queue_draw (GTK_WIDGET (cp));

}

}

static void

sp_color_preview_paint (SPColorPreview *cp, GdkRectangle *area)

{

GtkWidget *widget;

GdkRectangle warea, carea;

GdkRectangle wpaint, cpaint;

gint w2;

widget = GTK_WIDGET (cp);

warea.x = widget->allocation.x;

warea.y = widget->allocation.y;

warea.width = widget->allocation.width;

warea.height = widget->allocation.height;

if (!gdk_rectangle_intersect (area, &warea, &wpaint)) return;

/* Transparent area */

w2 = warea.width / 2;

carea.x = warea.x;

carea.y = warea.y;

carea.width = w2;

carea.height = warea.height;

if (gdk_rectangle_intersect (area, &carea, &cpaint)) {

nr_gdk_draw_rgba32_solid (widget->window, widget->style->black_gc,

cpaint.x, cpaint.y,

cpaint.width, cpaint.height,

cp->rgba);

}

/* Solid area */

carea.x = warea.x + w2;

carea.y = warea.y;

carea.width = warea.width - w2;

carea.height = warea.height;

if (gdk_rectangle_intersect (area, &carea, &cpaint)) {

nr_gdk_draw_rgba32_solid (widget->window, widget->style->black_gc,

cpaint.x, cpaint.y,

cpaint.width, cpaint.height,

cp->rgba | 0xff);

}

}