ui_node_spinner.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_nodes.h"
#include "../ui_parse.h"
#include "../ui_behaviour.h"
#include "../ui_main.h"
#include "../ui_input.h"
#include "../ui_timer.h"
#include "../ui_actions.h"
#include "../ui_render.h"
#include "../ui_sprite.h"
#include "ui_node_spinner.h"
#include "ui_node_abstractnode.h"

#include "../../input/cl_input.h"
#include "../../input/cl_keys.h"

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

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

static bool capturedDownButton;
static uiTimer_t* capturedTimer = nullptr;

bool uiSpinnerNode::step (uiNode_t* node, bool down)
{
    if (!down)
        return incValue(node);
    return decValue(node);
}

void uiSpinnerNode::repeat (uiNode_t* node, uiTimer_t* timer)
{
    step(node, capturedDownButton);
    switch (timer->calledTime) {
    case 1:
        timer->delay = 50;
        break;
    }
}

static void UI_SpinnerNodeRepeat (uiNode_t* node, uiTimer_t* timer)
{
    uiSpinnerNode* b = dynamic_cast<uiSpinnerNode*>(node->behaviour->manager.get());
    b->repeat(node, timer);
}

bool uiSpinnerNode::isPositionIncrease(uiNode_t* node, int x, int y)
{
    switch ((spinnerMode_t)EXTRADATA(node).mode) {
    case SPINNER_ONLY_INCREASE:
        return true;
    case SPINNER_ONLY_DECREASE:
        return false;
    case SPINNER_NORMAL:
        if (EXTRADATA(node).horizontal)
            return x > node->box.size[0] * 0.5;
        return y < node->box.size[1] * 0.5;
    default:
        return false;
    }
}

void uiSpinnerNode::onMouseDown (uiNode_t* node, int x, int y, int button)
{
    const bool disabled = node->disabled || node->parent->disabled;
    if (disabled)
        return;

    if (button == K_MOUSE1) {
        UI_SetMouseCapture(node);
        UI_NodeAbsoluteToRelativePos(node, &x, &y);
        capturedDownButton = !isPositionIncrease(node, x, y);
        if (EXTRADATA(node).inverted)
            capturedDownButton = !capturedDownButton;
        step(node, capturedDownButton);
        capturedTimer = UI_AllocTimer(node, 500, UI_SpinnerNodeRepeat);
        UI_TimerStart(capturedTimer);
    }
}

void uiSpinnerNode::onMouseUp (uiNode_t* node, int x, int y, int button)
{
    if (button == K_MOUSE1 && UI_GetMouseCapture() == node) {
        UI_MouseRelease();
    }
}

void uiSpinnerNode::onCapturedMouseLost (uiNode_t* node)
{
    if (capturedTimer) {
        UI_TimerRelease(capturedTimer);
        capturedTimer = nullptr;
    }
}

bool uiSpinnerNode::onScroll (uiNode_t* node, int deltaX, int deltaY)
{
    bool down = deltaY > 0;
    const bool disabled = node->disabled || node->parent->disabled;
    if (deltaY == 0)
        return false;
    if (disabled)
        return false;
    return step(node, down);
}

void uiSpinnerNode::draw (uiNode_t* node)
{
    vec2_t pos;
    const float delta = getDelta(node);
    const bool disabled = node->disabled || node->parent->disabled;

    UI_GetNodeAbsPos(node, pos);

    uiSpriteStatus_t status;
    uiSpriteStatus_t topStatus;
    uiSpriteStatus_t bottomStatus;

    if (disabled || delta == 0) {
        status = SPRITE_STATUS_DISABLED;
        topStatus = SPRITE_STATUS_DISABLED;
        bottomStatus = SPRITE_STATUS_DISABLED;
    } else {
        const float value = getValue(node);
        const float min = getMin(node);
        const float max = getMax(node);

        status = SPRITE_STATUS_NORMAL;

        bool increaseLocation = isPositionIncrease(node, mousePosX - pos[0], mousePosY - pos[1]);

        /* top button status */
        if (node->state && increaseLocation) {
            topStatus = SPRITE_STATUS_HOVER;
        } else {
            topStatus = SPRITE_STATUS_NORMAL;
        }
        /* bottom button status */
        if (node->state && !increaseLocation) {
            bottomStatus = SPRITE_STATUS_HOVER;
        } else {
            bottomStatus = SPRITE_STATUS_NORMAL;
        }

        if (value >= max) {
            if (EXTRADATA(node).inverted)
                bottomStatus = SPRITE_STATUS_DISABLED;
            else
                topStatus = SPRITE_STATUS_DISABLED;
        }
        if (value <= min) {
            if (EXTRADATA(node).inverted)
                topStatus = SPRITE_STATUS_DISABLED;
            else
                bottomStatus = SPRITE_STATUS_DISABLED;
        }
    }

    if (EXTRADATA(node).background)
        UI_DrawSpriteInBox(false, EXTRADATA(node).background, status, pos[0], pos[1], node->box.size[0], node->box.size[1]);
    if (!EXTRADATA(node).horizontal) {
        if (EXTRADATA(node).topIcon)
            UI_DrawSpriteInBox(false, EXTRADATA(node).topIcon, topStatus, pos[0], pos[1], node->box.size[0], node->box.size[1]);
        if (EXTRADATA(node).bottomIcon)
            UI_DrawSpriteInBox(false, EXTRADATA(node).bottomIcon, bottomStatus, pos[0], pos[1], node->box.size[0], node->box.size[1]);
    } else {
        if (EXTRADATA(node).topIcon) /* Top becomes right */
            UI_DrawSpriteInBox(false, EXTRADATA(node).topIcon, topStatus, pos[0] + node->box.size[0] / 2, pos[1], node->box.size[0] / 2, node->box.size[1]);
        if (EXTRADATA(node).bottomIcon) /* Bottom becomes left */
            UI_DrawSpriteInBox(false, EXTRADATA(node).bottomIcon, bottomStatus, pos[0], pos[1], node->box.size[0] / 2, node->box.size[1]);
    }
}

void uiSpinnerNode::onLoading (uiNode_t* node)
{
    uiAbstractValueNode::onLoading(node);
}

void UI_Spinner_SetBackgroundByName(uiNode_t* node, const char* name) {
    uiSprite_t* sprite = UI_GetSpriteByName(name);
    UI_EXTRADATA(node, spinnerExtraData_t).background = sprite;
}

void UI_Spinner_SetBottomIconByName(uiNode_t* node, const char* name) {
    uiSprite_t* sprite = UI_GetSpriteByName(name);
    UI_EXTRADATA(node, spinnerExtraData_t).bottomIcon = sprite;
}

void UI_Spinner_SetTopIconByName(uiNode_t* node, const char* name) {
    uiSprite_t* sprite = UI_GetSpriteByName(name);
    UI_EXTRADATA(node, spinnerExtraData_t).topIcon = sprite;
}


void UI_RegisterSpinnerNode (uiBehaviour_t* behaviour)
{
    behaviour->name = "spinner";
    behaviour->extends = "abstractvalue";
    behaviour->manager = UINodePtr(new uiSpinnerNode());
    behaviour->extraDataSize = sizeof(EXTRADATA_TYPE);
    behaviour->lua_SWIG_typeinfo = UI_SWIG_TypeQuery("uiSpinnerNode_t *");

    UI_RegisterExtradataNodeProperty(behaviour, "background", V_UI_SPRITEREF, EXTRADATA_TYPE, background);

    UI_RegisterExtradataNodeProperty(behaviour, "topIcon", V_UI_SPRITEREF, EXTRADATA_TYPE, topIcon);

    UI_RegisterExtradataNodeProperty(behaviour, "bottomIcon", V_UI_SPRITEREF, EXTRADATA_TYPE, bottomIcon);

    UI_RegisterExtradataNodeProperty(behaviour, "mode", V_INT, EXTRADATA_TYPE, mode);

    UI_RegisterExtradataNodeProperty(behaviour, "horizontal", V_BOOL, EXTRADATA_TYPE, horizontal);

    UI_RegisterExtradataNodeProperty(behaviour, "inverted", V_BOOL, EXTRADATA_TYPE, inverted);

    Com_RegisterConstInt("SPINNER_NORMAL", SPINNER_NORMAL);
    Com_RegisterConstInt("SPINNER_ONLY_INC", SPINNER_ONLY_INCREASE);
    Com_RegisterConstInt("SPINNER_ONLY_DEC", SPINNER_ONLY_DECREASE);
}