ui_node_controls.cpp

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/*
Copyright (C) 2002-2025 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_nodes.h"
#include "../ui_behaviour.h"
#include "../ui_parse.h"
#include "../ui_input.h"
#include "../ui_main.h"
#include "ui_node_image.h"
#include "ui_node_controls.h"
#include "ui_node_abstractnode.h"
 
#include "../../input/cl_keys.h"
#include "../../cl_video.h"
 
#include "../../../common/scripts_lua.h"
 
static int deltaMouseX;
static int deltaMouseY;
 
void uiControlNode::onMouseDown (uiNode_t* node, int x, int y, int button)
{
    if (button == K_MOUSE1) {
        UI_SetMouseCapture(node);
 
        /* save position between mouse and node pos */
        UI_NodeAbsoluteToRelativePos(node, &x, &y);
        deltaMouseX = x + node->box.pos[0];
        deltaMouseY = y + node->box.pos[1];
    }
}
 
void uiControlNode::onMouseUp (uiNode_t* node, int x, int y, int button)
{
    if (button == K_MOUSE1)
        UI_MouseRelease();
}

void uiControlNode::onCapturedMouseMove (uiNode_t* node, int x, int y)
{
    /* compute new x position of the window */
    x -= deltaMouseX;
    if (x < 0)
        x = 0;
    if (x + node->root->box.size[0] > viddef.virtualWidth)
        x = viddef.virtualWidth - node->root->box.size[0];
 
    /* compute new y position of the window */
    y -= deltaMouseY;
    if (y < 0)
        y = 0;
    if (y + node->root->box.size[1] > viddef.virtualHeight)
        y = viddef.virtualHeight - node->root->box.size[1];
 
    UI_SetNewWindowPos(node->root, x, y);
}
 
void UI_RegisterControlsNode (uiBehaviour_t* behaviour)
{
    behaviour->name = "controls";
    behaviour->extends = "image";
    behaviour->manager = UINodePtr(new uiControlNode());
    /* in lua, this class is renamed 'widget' since the generic name 'control' is reserved for a child
       node in a component/window node */
    behaviour->lua_SWIG_typeinfo = UI_SWIG_TypeQuery("uiWidgetNode_t *");
}