usbloadergx/source/GUI/gui_gamecarousel.cpp

/****************************************************************************
 * libwiigui
 *
 * gui_gamecarousel.cpp
 *
 * GUI class definitions
 ***************************************************************************/

#include "gui.h"
#include "wpad.h"
#include "menu.h"

#include <unistd.h>
#include "gui_image_async.h"
#include "gui_gamecarousel.h"
#include "usbloader/GameList.h"
#include "settings/GameTitles.h"
#include "settings/CSettings.h"
#include "GUI/LoadCoverImage.h"
#include "themes/CTheme.h"
#include "main.h"

#include <string.h>
#include <math.h>
#include <sstream>

#define SCALE       0.8f
#define DEG_OFFSET  7
#define RADIUS      780
#define IN_SPEED    175
#define SHIFT_SPEED 75
#define SPEED_STEP  4
#define SPEED_LIMIT 250

static inline int OFFSETLIMIT(int Offset, int gameCnt)
{
    while (Offset < 0)
        Offset += gameCnt;
    return Offset % gameCnt;
}
#define GetGameIndex(pageEntry, listOffset, gameCnt) OFFSETLIMIT(listOffset+pageEntry, gameCnt)
static GuiImageData *GameCarouselLoadCoverImage(void * Arg)
{
    return LoadCoverImage((struct discHdr *) Arg, true, false);
}
/**
 * Constructor for the GuiGameCarousel class.
 */
GuiGameCarousel::GuiGameCarousel(int w, int h, const char *themePath, int selectedGame) :
    noCover(Resources::GetFile("nocover.png"), Resources::GetFileSize("nocover.png"))
{
    width = w;
    height = h;
    pagesize = (gameList.size() < 11) ? gameList.size() : 11;
    listOffset = (gameList.size() < 11) ? 0 : gameList.size()-2;
    selectable = true;
    selectedItem = -1;
    focus = 1; // allow focus
    clickedItem = -1;

    speed = 0;

    trigA = new GuiTrigger;
    trigA->SetSimpleTrigger(-1, WPAD_BUTTON_A | WPAD_CLASSIC_BUTTON_A, PAD_BUTTON_A);
    trigL = new GuiTrigger;
    trigL->SetButtonOnlyTrigger(-1, WPAD_BUTTON_LEFT | WPAD_CLASSIC_BUTTON_LEFT, PAD_BUTTON_LEFT);
    trigR = new GuiTrigger;
    trigR->SetButtonOnlyTrigger(-1, WPAD_BUTTON_RIGHT | WPAD_CLASSIC_BUTTON_RIGHT, PAD_BUTTON_RIGHT);
    trigPlus = new GuiTrigger;
    trigPlus->SetButtonOnlyTrigger(-1, WPAD_BUTTON_PLUS | WPAD_CLASSIC_BUTTON_PLUS, 0);
    trigMinus = new GuiTrigger;
    trigMinus->SetButtonOnlyTrigger(-1, WPAD_BUTTON_MINUS | WPAD_CLASSIC_BUTTON_MINUS, 0);

    imgLeft = Resources::GetImageData("startgame_arrow_left.png");
    imgRight = Resources::GetImageData("startgame_arrow_right.png");

    btnLeftImg = new GuiImage(imgLeft);
    if (Settings.wsprompt == ON) btnLeftImg->SetWidescreen(Settings.widescreen);
    btnLeft = new GuiButton(imgLeft->GetWidth(), imgLeft->GetHeight());
    btnLeft->SetAlignment(thAlign("left - carousel layout left arrow align hor"), thAlign("top - carousel layout left arrow align ver"));
    btnLeft->SetPosition(thInt("20 - carousel layout left arrow pos x"), thInt("65 - carousel layout left arrow pos y"));
    btnLeft->SetParent(this);
    btnLeft->SetImage(btnLeftImg);
    btnLeft->SetSoundOver(btnSoundOver);
    btnLeft->SetTrigger(trigA);
    btnLeft->SetTrigger(trigL);
    btnLeft->SetTrigger(trigMinus);
    btnLeft->SetEffectGrow();

    btnRightImg = new GuiImage(imgRight);
    if (Settings.wsprompt == ON) btnRightImg->SetWidescreen(Settings.widescreen);
    btnRight = new GuiButton(imgRight->GetWidth(), imgRight->GetHeight());
    btnRight->SetParent(this);
    btnRight->SetAlignment(thAlign("right - carousel layout right arrow align hor"), thAlign("top - carousel layout right arrow align ver"));
    btnRight->SetPosition(thInt("-20 - carousel layout right arrow pos x"), thInt("65 - carousel layout right arrow pos y"));
    btnRight->SetImage(btnRightImg);
    btnRight->SetSoundOver(btnSoundOver);
    btnRight->SetTrigger(trigA);
    btnRight->SetTrigger(trigR);
    btnRight->SetTrigger(trigPlus);
    btnRight->SetEffectGrow();

    gamename = new GuiText(" ", 18, thColor("r=55 g=190 b=237 a=255 - carousel game name text color"));
    gamename->SetParent(this);
    gamename->SetAlignment(ALIGN_CENTRE, ALIGN_TOP);
    gamename->SetPosition(0, 330);
    gamename->SetMaxWidth(280, DOTTED);

    gameIndex = new int[pagesize];
    game.resize(pagesize);
    coverImg.resize(pagesize);

    for (int i = 0; i < pagesize; i++)
    {
        //------------------------
        // Index
        //------------------------
        gameIndex[i] = GetGameIndex( i, listOffset, gameList.size() );

        //------------------------
        // Image
        //------------------------
        coverImg[i] = new (std::nothrow) GuiImageAsync(GameCarouselLoadCoverImage, gameList[gameIndex[i]],
                sizeof(struct discHdr), &noCover);
        if (coverImg[i]) coverImg[i]->SetWidescreen(Settings.widescreen);

        //------------------------
        // GameButton
        //------------------------

        game[i] = new GuiButton(122, 244);
        game[i]->SetParent(this);
        game[i]->SetAlignment(ALIGN_CENTRE, ALIGN_MIDDLE);
        game[i]->SetPosition(0, 740);
        game[i]->SetImage(coverImg[i]);
        game[i]->SetScale(SCALE);
        game[i]->SetRumble(false);
        game[i]->SetTrigger(trigA);
        game[i]->SetSoundClick(btnSoundClick);
        game[i]->SetClickable(true);
        game[i]->SetEffect(EFFECT_GOROUND, IN_SPEED, 90 - (pagesize - 2 * i - 1) * DEG_OFFSET / 2, RADIUS, 180, 1, 0,
                RADIUS);
    }
}

/**
 * Destructor for the GuiGameCarousel class.
 */
GuiGameCarousel::~GuiGameCarousel()
{
    delete imgRight;
    delete imgLeft;
    delete btnLeftImg;
    delete btnRightImg;
    delete btnRight;
    delete btnLeft;

    delete trigA;
    delete trigL;
    delete trigR;
    delete trigPlus;
    delete trigMinus;
    delete gamename;

    GuiImageAsync::ClearQueue();

    for (u32 i = 0; i < game.size(); ++i)
        delete coverImg[i];
    for (u32 i = 0; i < game.size(); ++i)
        delete game[i];

    delete[] gameIndex;

}

void GuiGameCarousel::SetFocus(int f)
{
    LOCK( this );
    if (!gameList.size()) return;

    focus = f;

    for (int i = 0; i < pagesize; i++)
        game[i]->ResetState();

    if (f == 1 && selectedItem >= 0) game[selectedItem]->SetState(STATE_SELECTED);
}

void GuiGameCarousel::ResetState()
{
    LOCK( this );
    if (state != STATE_DISABLED)
    {
        state = STATE_DEFAULT;
        stateChan = -1;
    }

    for (int i = 0; i < pagesize; i++)
    {
        game[i]->ResetState();
    }
}

int GuiGameCarousel::GetOffset()
{
    LOCK( this );
    return listOffset;
}

int GuiGameCarousel::GetClickedOption()
{
    LOCK( this );
    int found = -1;
    if (clickedItem >= 0)
    {
        for (int i = pagesize - 1; i >= 0; i--)
            game[i]->ResetState();

        game[clickedItem]->SetState(STATE_SELECTED);
        found = gameIndex[clickedItem];
        clickedItem = -1;
    }
    return found;
}

int GuiGameCarousel::GetSelectedOption()
{
    LOCK( this );
    int found = -1;
    for (int i = 0; i < pagesize; i++)
    {
        if (game[i]->GetState() == STATE_SELECTED)
        {
            game[i]->SetState(STATE_SELECTED);
            found = gameIndex[i];
            break;
        }
    }
    return found;
}

/**
 * Draw the button on screen
 */
void GuiGameCarousel::Draw()
{
    LOCK( this );
    if (!this->IsVisible() || !gameList.size()) return;

    for (int i = 0; i < pagesize; i++)
        game[i]->Draw();

    gamename->Draw();

    if (gameList.size() > 6)
    {
        btnRight->Draw();
        btnLeft->Draw();
    }

    //!Draw tooltip after the Images to have it on top
    if (focus && Settings.tooltips == ON) for (int i = 0; i < pagesize; i++)
        game[i]->DrawTooltip();

    this->UpdateEffects();
}

void GuiGameCarousel::Update(GuiTrigger * t)
{
    LOCK( this );
    if (state == STATE_DISABLED || !t || !gameList.size() || !pagesize) return;

    btnRight->Update(t);
    btnLeft->Update(t);

    if (game[0]->GetEffect() & EFFECT_GOROUND || game[pagesize - 1]->GetEffect() & EFFECT_GOROUND)
    {
        return; // skip when rotate
    }

    // find selected + clicked
    int selectedItem_old = selectedItem;
    selectedItem = -1;
    clickedItem = -1;
    for (int i = pagesize - 1; i >= 0; i--)
    {
        game[i]->Update(t);
        if (game[i]->GetState() == STATE_SELECTED)
        {
            selectedItem = i;
        }
        if (game[i]->GetState() == STATE_CLICKED)
        {
            clickedItem = i;
        }

    }

    /// OnOver-Effect + GameText + Tooltop
    if (selectedItem_old != selectedItem)
    {
        if (selectedItem >= 0)
        {
            game[selectedItem]->SetEffect(EFFECT_SCALE, 1, 130);
            gamename->SetText(GameTitles.GetTitle(gameList[gameIndex[selectedItem]]));
        }
        else gamename->SetText((char*) NULL);
        if (selectedItem_old >= 0) game[selectedItem_old]->SetEffect(EFFECT_SCALE, -1, 100);
    }
    // navigation
    if (focus && gameList.size() > 6)
    {

        int newspeed = 0;
        // Left/Right Navigation
        if (btnLeft->GetState() == STATE_CLICKED)
        {
            WPAD_ScanPads();
            u16 buttons = 0;
            for (int i = 0; i < 4; i++)
                buttons |= WPAD_ButtonsHeld(i);
            if (!((buttons & WPAD_BUTTON_A) || (buttons & WPAD_BUTTON_MINUS) || t->Left()))
            {
                btnLeft->ResetState();
                return;
            }

            if (Settings.xflip == XFLIP_SYSMENU || Settings.xflip == XFLIP_YES || Settings.xflip == XFLIP_DISK3D)
                newspeed = SHIFT_SPEED;
            else newspeed = -SHIFT_SPEED;
        }
        else if (btnRight->GetState() == STATE_CLICKED)
        {
            WPAD_ScanPads();
            u16 buttons = 0;
            for (int i = 0; i < 4; i++)
                buttons |= WPAD_ButtonsHeld(i);
            if (!((buttons & WPAD_BUTTON_A) || (buttons & WPAD_BUTTON_PLUS) || t->Right()))
            {
                btnRight->ResetState();
                return;
            }
            if (Settings.xflip == XFLIP_SYSMENU || Settings.xflip == XFLIP_YES || Settings.xflip == XFLIP_DISK3D)
                newspeed = -SHIFT_SPEED;
            else newspeed = SHIFT_SPEED;
        }
        if (newspeed)
        {
            if (speed == 0)
                speed = newspeed;
            else if (speed > 0)
            {
                if ((speed += SPEED_STEP) > SPEED_LIMIT) speed = SPEED_LIMIT;
            }
            else
            {
                if ((speed -= SPEED_STEP) < -SPEED_LIMIT) speed = -SPEED_LIMIT;
            }
        }
        else speed = 0;

        if (speed > 0) // rotate right
        {
            GuiButton *tmpButton;
            listOffset = OFFSETLIMIT(listOffset - 1, gameList.size()); // set the new listOffset
            // Save right Button + TollTip and destroy right Image + Image-Data
            delete coverImg[pagesize - 1];
            coverImg[pagesize - 1] = NULL;
            game[pagesize - 1]->SetImage(NULL);
            tmpButton = game[pagesize - 1];

            // Move all Page-Entries one step right
            for (int i = pagesize - 1; i >= 1; i--)
            {
                coverImg[i] = coverImg[i - 1];
                game[i] = game[i - 1];
                gameIndex[i] = gameIndex[i - 1];
            }
            // set saved Button & gameIndex to right
            gameIndex[0] = listOffset;
            coverImg[0] = new GuiImageAsync(GameCarouselLoadCoverImage, gameList[gameIndex[0]], sizeof(struct discHdr),
                    &noCover);
            coverImg[0] ->SetWidescreen(Settings.widescreen);

            game[0] = tmpButton;
            game[0] ->SetImage(coverImg[0]);

            for (int i = 0; i < pagesize; i++)
            {
                game[i]->StopEffect();
                game[i]->ResetState();
                game[i]->SetEffect(EFFECT_GOROUND, speed, DEG_OFFSET, RADIUS, 270 - (pagesize - 2 * i + 1) * DEG_OFFSET
                        / 2, 1, 0, RADIUS);
                game[i]->UpdateEffects(); // rotate one step for liquid scrolling
            }
        }
        else if (speed < 0) // rotate left
        {
            GuiButton *tmpButton;
            listOffset = OFFSETLIMIT(listOffset + 1, gameList.size()); // set the new listOffset
            // Save left Button + TollTip and destroy left Image + Image-Data
            delete coverImg[0];
            coverImg[0] = NULL;
            game[0]->SetImage(NULL);
            tmpButton = game[0];

            // Move all Page-Entries one step left
            for (int i = 0; i < (pagesize - 1); i++)
            {
                coverImg[i] = coverImg[i + 1];
                game[i] = game[i + 1];
                gameIndex[i] = gameIndex[i + 1];
            }
            // set saved Button & gameIndex to right
            int ii = pagesize - 1;
            gameIndex[ii] = OFFSETLIMIT(listOffset + ii, gameList.size());
            coverImg[ii] = new GuiImageAsync(GameCarouselLoadCoverImage, gameList[gameIndex[ii]],
                    sizeof(struct discHdr), &noCover);
            coverImg[ii] ->SetWidescreen(Settings.widescreen);

            game[ii] = tmpButton;
            game[ii] ->SetImage(coverImg[ii]);

            for (int i = 0; i < pagesize; i++)
            {
                game[i]->StopEffect();
                game[i]->ResetState();
                game[i]->SetEffect(EFFECT_GOROUND, speed, DEG_OFFSET, RADIUS, 270 - (pagesize - 2 * i - 3) * DEG_OFFSET
                        / 2, 1, 0, RADIUS);
                game[i]->UpdateEffects(); // rotate one step for liquid scrolling
            }
        }

    }
    if (updateCB) updateCB(this);
}