ui_node_custombutton.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_icon.h"
#include "../ui_parse.h"
#include "../ui_font.h"
#include "../ui_input.h"
#include "../ui_render.h"
#include "ui_node_custombutton.h"
#include "ui_node_button.h"
#include "ui_node_abstractnode.h"

#define UI_CUSTOMBUTTON_TEX_HEIGHT 64
#define UI_CUSTOMBUTTON_TEX_WIDTH 256

#define EXTRADATA_TYPE customButtonExtraData_t
#define EXTRADATA(node) UI_EXTRADATA(node, EXTRADATA_TYPE)
#define EXTRADATACONST(node) UI_EXTRADATACONST(node, EXTRADATA_TYPE)

static void UI_CustomButtonNodeDraw (uiNode_t *node)
{
    const char *text;
    int texY;
    const float *textColor;
    const char *image;
    vec2_t pos;
    static vec4_t disabledColor = {0.5, 0.5, 0.5, 1.0};
    uiIconStatus_t iconStatus = ICON_STATUS_NORMAL;
    const char *font = UI_GetFontFromNode(node);

    if (!node->onClick || node->disabled) {
        textColor = disabledColor;
        texY = UI_CUSTOMBUTTON_TEX_HEIGHT * 2;
        iconStatus = ICON_STATUS_DISABLED;
    } else if (node->state) {
        textColor = node->selectedColor;
        texY = UI_CUSTOMBUTTON_TEX_HEIGHT;
        iconStatus = ICON_STATUS_HOVER;
    } else {
        textColor = node->color;
        texY = 0;
    }

    UI_GetNodeAbsPos(node, pos);

    image = UI_GetReferenceString(node, node->image);
    if (image) {
        const int texX = rint(EXTRADATA(node).texl[0]);
        texY += EXTRADATA(node).texl[1];
        UI_DrawNormImageByName(pos[0], pos[1], node->size[0], node->size[1],
            texX + node->size[0], texY + node->size[1], texX, texY, image);
    }

    if (EXTRADATA(node).super.icon) {
        UI_DrawIconInBox(EXTRADATA(node).super.icon, iconStatus, pos[0], pos[1], node->size[0], node->size[1]);
    }

    text = UI_GetReferenceString(node, node->text);
    if (text != NULL && *text != '\0') {
        R_Color(textColor);
        UI_DrawStringInBox(font, node->textalign,
            pos[0] + node->padding, pos[1] + node->padding,
            node->size[0] - node->padding - node->padding, node->size[1] - node->padding - node->padding,
            text, LONGLINES_PRETTYCHOP);
        R_Color(NULL);
    }
}

static const value_t properties[] = {
    /* Skin position. Define the top-left position of the skin we will used from the image. Y should not be bigger than 64. To compute the high corner we use the node size. */
    {"texl", V_POS, UI_EXTRADATA_OFFSETOF(customButtonExtraData_t, texl), MEMBER_SIZEOF(customButtonExtraData_t, texl)},
    {NULL, V_NULL, 0, 0}
};

void UI_RegisterCustomButtonNode (uiBehaviour_t *behaviour)
{
    behaviour->name = "custombutton";
    behaviour->extends = "button";
    behaviour->draw = UI_CustomButtonNodeDraw;
    behaviour->properties = properties;
    behaviour->extraDataSize = sizeof(EXTRADATA_TYPE);
}