ui_node_rows.cpp

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/*
Copyright (C) 2002-2020 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_behaviour.h"
#include "../ui_render.h"
#include "ui_node_rows.h"
#include "ui_node_abstractnode.h"

#include "../../../common/scripts_lua.h"

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

void uiRowsNode::draw (uiNode_t* node)
{
    int current = 0;
    int i = EXTRADATA(node).current;
    vec2_t pos;
    UI_GetNodeAbsPos(node, pos);

    while (current < node->box.size[1]) {
        const float* color;
        const int height = std::min(EXTRADATA(node).lineHeight, (int)node->box.size[1] - current);

        if (i % 2)
            color = node->color;
        else
            color = node->selectedColor;
        UI_DrawFill(pos[0], pos[1] + current, node->box.size[0], height, color);
        current += height;
        i++;
    }
}

void uiRowsNode::onLoaded (uiNode_t* node)
{
    /* prevent infinite loop into the draw */
    if (EXTRADATA(node).lineHeight == 0) {
        EXTRADATA(node).lineHeight = 10;
    }
}

void UI_RegisterRowsNode (uiBehaviour_t* behaviour)
{
    behaviour->name = "rows";
    behaviour->manager = UINodePtr(new uiRowsNode());
    behaviour->extraDataSize = sizeof(EXTRADATA_TYPE);
    behaviour->lua_SWIG_typeinfo = UI_SWIG_TypeQuery("uiRowsNode_t *");

    /* Background color for odd elements */
    UI_RegisterNodeProperty(behaviour, "color1", V_COLOR, uiNode_t, color);
    /* Background color for even elements */
    UI_RegisterNodeProperty(behaviour, "color2", V_COLOR, uiNode_t, selectedColor);
    /* Element height */
    UI_RegisterExtradataNodeProperty(behaviour, "lineheight", V_INT, rowsExtraData_t, lineHeight);
    /* Element number on the top of the list. It is used to scroll the node content. */
    UI_RegisterExtradataNodeProperty(behaviour, "current", V_INT, rowsExtraData_t, current);
}