ui_icon.c

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/*
Copyright (C) 2002-2010 UFO: Alien Invasion.

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 "ui_main.h"
#include "ui_internal.h"
#include "ui_parse.h"
#include "ui_icon.h"
#include "ui_render.h"

#define TILE_HEIGHT 64

const value_t mn_iconProperties[] = {
    {"size", V_POS, offsetof(uiIcon_t, size), MEMBER_SIZEOF(uiIcon_t, size)},
    {"single", V_BOOL, offsetof(uiIcon_t, single), 0},
    {"blend", V_BOOL, offsetof(uiIcon_t, blend), 0},
    {"pack64", V_BOOL, offsetof(uiIcon_t, pack64), 0},

    {"texl", V_POS, offsetof(uiIcon_t, pos[ICON_STATUS_NORMAL]), MEMBER_SIZEOF(uiIcon_t, pos[ICON_STATUS_NORMAL])},
    {"hoveredtexl", V_POS, offsetof(uiIcon_t, pos[ICON_STATUS_HOVER]), MEMBER_SIZEOF(uiIcon_t, pos[ICON_STATUS_HOVER])},
    {"disabledtexl", V_POS, offsetof(uiIcon_t, pos[ICON_STATUS_DISABLED]), MEMBER_SIZEOF(uiIcon_t, pos[ICON_STATUS_DISABLED])},
    {"clickedtexl", V_POS, offsetof(uiIcon_t, pos[ICON_STATUS_CLICKED]), MEMBER_SIZEOF(uiIcon_t, pos[ICON_STATUS_CLICKED])},

    {"image", V_REF_OF_STRING, offsetof(uiIcon_t, image[ICON_STATUS_NORMAL]), 0},
    {"hoveredimage", V_REF_OF_STRING, offsetof(uiIcon_t, image[ICON_STATUS_HOVER]), 0},
    {"disabledimage", V_REF_OF_STRING, offsetof(uiIcon_t, image[ICON_STATUS_DISABLED]), 0},
    {"clickedimage", V_REF_OF_STRING, offsetof(uiIcon_t, image[ICON_STATUS_CLICKED]), 0},

    {"color", V_COLOR, offsetof(uiIcon_t, color[ICON_STATUS_NORMAL]), MEMBER_SIZEOF(uiIcon_t, color[ICON_STATUS_NORMAL])},
    {"hoveredcolor", V_COLOR, offsetof(uiIcon_t, color[ICON_STATUS_HOVER]), MEMBER_SIZEOF(uiIcon_t, color[ICON_STATUS_HOVER])},
    {"disabledcolor", V_COLOR, offsetof(uiIcon_t, color[ICON_STATUS_DISABLED]), MEMBER_SIZEOF(uiIcon_t, color[ICON_STATUS_DISABLED])},
    {"clickedcolor", V_COLOR, offsetof(uiIcon_t, color[ICON_STATUS_CLICKED]), MEMBER_SIZEOF(uiIcon_t, color[ICON_STATUS_CLICKED])},

    {NULL, V_NULL, 0, 0}
};

static uiIcon_t* UI_AutoGenerateIcon (const char* name)
{
    uiIcon_t* icon = NULL;
    const char* suffix[ICON_STATUS_MAX] = {"", "_hovered", "_disabled", "_clicked"};
    int i;

    const char *picName = va("icons/%s", name);
    const image_t *pic = UI_LoadImage(picName);
    if (pic == NULL)
        return NULL;

    icon = UI_AllocStaticIcon(name);
    icon->image[ICON_STATUS_NORMAL] = UI_AllocStaticString(picName, 0);
    icon->size[0] = pic->width;
    icon->size[1] = pic->height;
    for (i = 1; i < ICON_STATUS_MAX; i++) {
        picName = va("icons/%s%s", name, suffix[i]);
        pic = UI_LoadImage(picName);
        if (pic != NULL)
            icon->image[i] = UI_AllocStaticString(picName, 0);
    }
    return icon;
}

#ifdef DEBUG

static qboolean UI_IconExists (const char* name)
{
    int i;
    for (i = 0; i < ui_global.numIcons; i++) {
        if (strncmp(name, ui_global.icons[i].name, MEMBER_SIZEOF(uiIcon_t, name)) != 0)
            continue;
        return qtrue;
    }
    return qfalse;
}
#endif

uiIcon_t* UI_GetIconByName (const char* name)
{
    int i;
    for (i = 0; i < ui_global.numIcons; i++) {
        if (strncmp(name, ui_global.icons[i].name, MEMBER_SIZEOF(uiIcon_t, name)) != 0)
            continue;
        return &ui_global.icons[i];
    }
    return UI_AutoGenerateIcon(name);
}

uiIcon_t* UI_AllocStaticIcon (const char* name)
{
    uiIcon_t* result;
#ifdef DEBUG
    assert(!UI_IconExists(name));
#endif
    if (ui_global.numIcons >= UI_MAX_ICONS)
        Com_Error(ERR_FATAL, "UI_AllocStaticIcon: UI_MAX_ICONS hit");

    result = &ui_global.icons[ui_global.numIcons];
    ui_global.numIcons++;

    memset(result, 0, sizeof(*result));
    Q_strncpyz(result->name, name, sizeof(result->name));
    return result;
}

void UI_DrawIconInBox (const uiIcon_t* icon, uiIconStatus_t status, int posX, int posY, int sizeX, int sizeY)
{
    int texX;
    int texY;
    const char* image;

    if (status < 0 && status >= ICON_STATUS_MAX)
        return;

    if (icon->single || icon->blend) {
        texX = icon->pos[ICON_STATUS_NORMAL][0];
        texY = icon->pos[ICON_STATUS_NORMAL][1];
        image = icon->image[ICON_STATUS_NORMAL];
    } else if (icon->pack64) {
        texX = icon->pos[ICON_STATUS_NORMAL][0];
        texY = icon->pos[ICON_STATUS_NORMAL][1] + (TILE_HEIGHT * status);
        image = icon->image[ICON_STATUS_NORMAL];
    } else {
        texX = icon->pos[status][0];
        texY = icon->pos[status][1];
        image = icon->image[status];
        if (!image) {
            texX = icon->pos[ICON_STATUS_NORMAL][0];
            texY = icon->pos[ICON_STATUS_NORMAL][1];
            image = icon->image[ICON_STATUS_NORMAL];
        }
    }
    if (!image)
        return;

    posX += (sizeX - icon->size[0]) / 2;
    posY += (sizeY - icon->size[1]) / 2;

    if (icon->blend) {
        const vec_t *color;
        color = icon->color[status];
        R_Color(color);
    }

    UI_DrawNormImageByName(posX, posY, icon->size[0], icon->size[1],
        texX + icon->size[0], texY + icon->size[1], texX, texY, image);
    if (icon->blend)
        R_Color(NULL);
}