/*
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 Copyright 2009 Intel Corporation All Rights Reserved.
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 */

/**
 * SECTION:mixdisplayx11
 * @short_description: MI-X Video X11 Display
 *
 * A data object which stores X11 specific parameters.
 *
 * <note>
 * <title>Data Structures Used in MixDisplayX11 Fields:</title>
 * See X11/Xlib.h for Display and Drawable definitions.
 * </note>
 */

#include "mixdisplayx11.h"

#define SAFE_FREE(p) if(p) { free(p); p = NULL; }

static GType _mix_displayx11_type = 0;
static MixDisplayClass *parent_class = NULL;

#define _do_init { _mix_displayx11_type = g_define_type_id; }

bool mix_displayx11_copy(MixDisplay * target, const MixDisplay * src);
MixDisplay *mix_displayx11_dup(const MixDisplay * obj);
bool mix_displayx11_equal(MixDisplay * first, MixDisplay * second);
static void mix_displayx11_finalize(MixDisplay * obj);

G_DEFINE_TYPE_WITH_CODE (MixDisplayX11, mix_displayx11,
                         MIX_TYPE_DISPLAY, _do_init);

static void mix_displayx11_init(MixDisplayX11 * self) {

    /* Initialize member varibles */
    self->display = NULL;
    self->drawable = 0;
}

static void mix_displayx11_class_init(MixDisplayX11Class * klass) {
    MixDisplayClass *mixdisplay_class = MIX_DISPLAY_CLASS(klass);

    /* setup static parent class */
    parent_class = (MixDisplayClass *) g_type_class_peek_parent(klass);

    mixdisplay_class->finalize = mix_displayx11_finalize;
    mixdisplay_class->copy = (MixDisplayCopyFunction) mix_displayx11_copy;
    mixdisplay_class->dup = (MixDisplayDupFunction) mix_displayx11_dup;
    mixdisplay_class->equal = (MixDisplayEqualFunction) mix_displayx11_equal;
}

MixDisplayX11 *
mix_displayx11_new(void) {
    MixDisplayX11 *ret = (MixDisplayX11 *) g_type_create_instance(
                             MIX_TYPE_DISPLAYX11);

    return ret;
}

void mix_displayx11_finalize(MixDisplay * obj) {
    /* clean up here. */
    /* MixDisplayX11 *self = MIX_DISPLAYX11 (obj); */

    /* NOTE: we don't need to do anything
     * with display and drawable */

    /* Chain up parent */
    if (parent_class->finalize)
        parent_class->finalize(obj);
}

MixDisplayX11 *
mix_displayx11_ref(MixDisplayX11 * mix) {
    return (MixDisplayX11 *) mix_display_ref(MIX_DISPLAY(mix));
}

/**
 * mix_mixdisplayx11_dup:
 * @obj: a #MixDisplayX11 object
 * @returns: a newly allocated duplicate of the object.
 *
 * Copy duplicate of the object.
 */
MixDisplay *
mix_displayx11_dup(const MixDisplay * obj) {
    MixDisplay *ret = NULL;

    if (MIX_IS_DISPLAYX11(obj)) {
        MixDisplayX11 *duplicate = mix_displayx11_new();
        if (mix_displayx11_copy(MIX_DISPLAY(duplicate), MIX_DISPLAY(obj))) {
            ret = MIX_DISPLAY(duplicate);
        } else {
            mix_displayx11_unref(duplicate);
        }
    }
    return ret;
}

/**
 * mix_mixdisplayx11_copy:
 * @target: copy to target
 * @src: copy from src
 * @returns: boolean indicates if copy is successful.
 *
 * Copy instance data from @src to @target.
 */
bool mix_displayx11_copy(MixDisplay * target, const MixDisplay * src) {
    MixDisplayX11 *this_target, *this_src;

    if (MIX_IS_DISPLAYX11(target) && MIX_IS_DISPLAYX11(src)) {
        // Cast the base object to this child object
        this_target = MIX_DISPLAYX11(target);
        this_src = MIX_DISPLAYX11(src);

        // Copy properties from source to target.

        this_target->display = this_src->display;
        this_target->drawable = this_src->drawable;

        // Now chainup base class
        if (parent_class->copy) {
            return parent_class->copy(MIX_DISPLAY_CAST(target),
                                      MIX_DISPLAY_CAST(src));
        } else {
            return TRUE;
        }
    }
    return FALSE;
}

/**
 * mix_mixdisplayx11_equal:
 * @first: first object to compare
 * @second: seond object to compare
 * @returns: boolean indicates if instance are equal.
 *
 * Copy instance data from @src to @target.
 */
bool mix_displayx11_equal(MixDisplay * first, MixDisplay * second) {
    bool ret = FALSE;

    MixDisplayX11 *this_first, *this_second;

    this_first = MIX_DISPLAYX11(first);
    this_second = MIX_DISPLAYX11(second);

    if (MIX_IS_DISPLAYX11(first) && MIX_IS_DISPLAYX11(second)) {
        // Compare member variables

        // TODO: if in the copy method we just copy the pointer of display, the comparison
        //      below is enough. But we need to decide how to copy!

        if (this_first->display == this_second->display && this_first->drawable
                == this_second->drawable) {
            // members within this scope equal. chaining up.
            MixDisplayClass *klass = MIX_DISPLAY_CLASS(parent_class);
            if (klass->equal)
                ret = parent_class->equal(first, second);
            else
                ret = TRUE;
        }
    }
    return ret;
}

#define MIX_DISPLAYX11_SETTER_CHECK_INPUT(obj) \
	if(!obj) return MIX_RESULT_NULL_PTR; \
	if(!MIX_IS_DISPLAYX11(obj)) return MIX_RESULT_FAIL; \
 
#define MIX_DISPLAYX11_GETTER_CHECK_INPUT(obj, prop) \
	if(!obj || !prop) return MIX_RESULT_NULL_PTR; \
	if(!MIX_IS_DISPLAYX11(obj)) return MIX_RESULT_FAIL; \
 
MIX_RESULT mix_displayx11_set_display(MixDisplayX11 * obj, Display * display) {
    MIX_DISPLAYX11_SETTER_CHECK_INPUT (obj);

    // TODO: needs to decide to clone or just copy pointer
    obj->display = display;
    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_displayx11_get_display(MixDisplayX11 * obj, Display ** display) {
    MIX_DISPLAYX11_GETTER_CHECK_INPUT (obj, display);

    // TODO: needs to decide to clone or just copy pointer
    *display = obj->display;

    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_displayx11_set_drawable(MixDisplayX11 * obj, Drawable drawable) {
    MIX_DISPLAYX11_SETTER_CHECK_INPUT (obj);

    // TODO: needs to decide to clone or just copy pointer
    obj->drawable = drawable;
    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_displayx11_get_drawable(MixDisplayX11 * obj, Drawable * drawable) {
    MIX_DISPLAYX11_GETTER_CHECK_INPUT (obj, drawable);

    // TODO: needs to decide to clone or just copy pointer
    *drawable = obj->drawable;
    return MIX_RESULT_SUCCESS;
}