GuiKeyboard.cpp

/****************************************************************************
 * libgui
 *
 * Daryl Borth 2009-2026
 * GuiKeyboard.cpp
 ***************************************************************************/
 
#include "libgui/Gui.h"
#include "GuiKeyboard.h"
#include "../filelist.h"
 
#define KB_FONTSIZE 20
 
static char tmptxt[MAX_KEYBOARD_DISPLAY+1];
 
static const char * GetDisplayText(const char * t)
{
    if(!t)
        return nullptr;
 
    strncpy(tmptxt, t, MAX_KEYBOARD_DISPLAY);
    tmptxt[MAX_KEYBOARD_DISPLAY] = '\0';
    return &tmptxt[0];
}
 
GuiKeyboard::GuiKeyboard(char * t, uint32_t max)
{
    width = 540;
    height = 400;
    shift = 0;
    caps = 0;
    selectable = true;
    focus = 0; // allow focus
    alignmentHor = ALIGN_H::CENTRE;
    alignmentVert = ALIGN_V::MIDDLE;
    snprintf(kbtextstr, 255, "%s", t);
    kbtextmaxlen = max;
 
    Key thekeys[KB_ROWS][KB_COLUMNS] = {
    {
        {'1','!'},
        {'2','@'},
        {'3','#'},
        {'4','$'},
        {'5','%'},
        {'6','^'},
        {'7','&'},
        {'8','*'},
        {'9','('},
        {'0',')'},
        {'\0','\0'}
    },
    {
        {'q','Q'},
        {'w','W'},
        {'e','E'},
        {'r','R'},
        {'t','T'},
        {'y','Y'},
        {'u','U'},
        {'i','I'},
        {'o','O'},
        {'p','P'},
        {'-','_'}
    },
    {
        {'a','A'},
        {'s','S'},
        {'d','D'},
        {'f','F'},
        {'g','G'},
        {'h','H'},
        {'j','J'},
        {'k','K'},
        {'l','L'},
        {';',':'},
        {'\'','"'}
    },
 
    {
        {'z','Z'},
        {'x','X'},
        {'c','C'},
        {'v','V'},
        {'b','B'},
        {'n','N'},
        {'m','M'},
        {',','<'},
        {'.','>'},
        {'/','?'},
        {'\0','\0'}
    }
    };
    memcpy(keys, thekeys, sizeof(thekeys));
 
    keyTextbox = new GuiImageData(keyboard_textbox_png);
    keyTextboxImg = new GuiImage(keyTextbox);
    keyTextboxImg->setAlignment(ALIGN_H::CENTRE, ALIGN_V::TOP);
    keyTextboxImg->setPosition(0, 0);
    this->append(keyTextboxImg);
 
    kbText = new GuiText(GetDisplayText(kbtextstr), KB_FONTSIZE, (PixelColor){0, 0, 0, 0xff});
    kbText->setAlignment(ALIGN_H::CENTRE, ALIGN_V::TOP);
    kbText->setPosition(0, 13);
    this->append(kbText);
 
    key = new GuiImageData(keyboard_key_png);
    keyOver = new GuiImageData(keyboard_key_over_png);
    keyMedium = new GuiImageData(keyboard_mediumkey_png);
    keyMediumOver = new GuiImageData(keyboard_mediumkey_over_png);
    keyLarge = new GuiImageData(keyboard_largekey_png);
    keyLargeOver = new GuiImageData(keyboard_largekey_over_png);
 
    trigA = new GuiTrigger;
    trigA->setPrimaryTrigger();
 
    keyBackImg = new GuiImage(keyMedium);
    keyBackOverImg = new GuiImage(keyMediumOver);
    keyBackText = new GuiText("Back", KB_FONTSIZE, (PixelColor){0, 0, 0, 0xff});
    keyBack = new GuiButton(keyMedium->getWidth(), keyMedium->getHeight());
    keyBack->setImage(keyBackImg);
    keyBack->setImageOver(keyBackOverImg);
    keyBack->setLabel(keyBackText);
    keyBack->setTrigger(trigA);
    keyBack->setPosition(10*42+40, 0*42+80);
    keyBack->setEffectGrow();
    this->append(keyBack);
 
    keyCapsImg = new GuiImage(keyMedium);
    keyCapsOverImg = new GuiImage(keyMediumOver);
    keyCapsText = new GuiText("Caps", KB_FONTSIZE, (PixelColor){0, 0, 0, 0xff});
    keyCaps = new GuiButton(keyMedium->getWidth(), keyMedium->getHeight());
    keyCaps->setImage(keyCapsImg);
    keyCaps->setImageOver(keyCapsOverImg);
    keyCaps->setLabel(keyCapsText);
    keyCaps->setTrigger(trigA);
    keyCaps->setPosition(0, 2*42+80);
    keyCaps->setEffectGrow();
    this->append(keyCaps);
 
    keyShiftImg = new GuiImage(keyMedium);
    keyShiftOverImg = new GuiImage(keyMediumOver);
    keyShiftText = new GuiText("Shift", KB_FONTSIZE, (PixelColor){0, 0, 0, 0xff});
    keyShift = new GuiButton(keyMedium->getWidth(), keyMedium->getHeight());
    keyShift->setImage(keyShiftImg);
    keyShift->setImageOver(keyShiftOverImg);
    keyShift->setLabel(keyShiftText);
    keyShift->setTrigger(trigA);
    keyShift->setPosition(21, 3*42+80);
    keyShift->setEffectGrow();
    this->append(keyShift);
 
    keySpaceImg = new GuiImage(keyLarge);
    keySpaceOverImg = new GuiImage(keyLargeOver);
    keySpace = new GuiButton(keyLarge->getWidth(), keyLarge->getHeight());
    keySpace->setImage(keySpaceImg);
    keySpace->setImageOver(keySpaceOverImg);
    keySpace->setTrigger(trigA);
    keySpace->setPosition(0, 4*42+80);
    keySpace->setAlignment(ALIGN_H::CENTRE, ALIGN_V::TOP);
    keySpace->setEffectGrow();
    this->append(keySpace);
 
    char txt[2] = { 0, 0 };
 
    for(int i=0; i<KB_ROWS; i++)
    {
        for(int j=0; j<KB_COLUMNS; j++)
        {
            if(keys[i][j].ch != '\0')
            {
                txt[0] = keys[i][j].ch;
                keyImg[i][j] = new GuiImage(key);
                keyImgOver[i][j] = new GuiImage(keyOver);
                keyTxt[i][j] = new GuiText(txt, KB_FONTSIZE, (PixelColor){0, 0, 0, 0xff});
                keyTxt[i][j]->setAlignment(ALIGN_H::CENTRE, ALIGN_V::BOTTOM);
                keyTxt[i][j]->setPosition(0, -10);
                keyBtn[i][j] = new GuiButton(key->getWidth(), key->getHeight());
                keyBtn[i][j]->setImage(keyImg[i][j]);
                keyBtn[i][j]->setImageOver(keyImgOver[i][j]);
                keyBtn[i][j]->setTrigger(trigA);
                keyBtn[i][j]->setLabel(keyTxt[i][j]);
                keyBtn[i][j]->setPosition(j*42+21*i+40, i*42+80);
                keyBtn[i][j]->setEffectGrow();
                this->append(keyBtn[i][j]);
            }
        }
    }
}
 
GuiKeyboard::~GuiKeyboard()
{
    delete kbText;
    delete keyTextbox;
    delete keyTextboxImg;
    delete keyCapsText;
    delete keyCapsImg;
    delete keyCapsOverImg;
    delete keyCaps;
    delete keyShiftText;
    delete keyShiftImg;
    delete keyShiftOverImg;
    delete keyShift;
    delete keyBackText;
    delete keyBackImg;
    delete keyBackOverImg;
    delete keyBack;
    delete keySpaceImg;
    delete keySpaceOverImg;
    delete keySpace;
    delete key;
    delete keyOver;
    delete keyMedium;
    delete keyMediumOver;
    delete keyLarge;
    delete keyLargeOver;
    delete trigA;
 
    for(int i=0; i<KB_ROWS; i++)
    {
        for(int j=0; j<KB_COLUMNS; j++)
        {
            if(keys[i][j].ch != '\0')
            {
                delete keyImg[i][j];
                delete keyImgOver[i][j];
                delete keyTxt[i][j];
                delete keyBtn[i][j];
            }
        }
    }
}
 
void GuiKeyboard::update(InputController * c)
{
    if(_elements.size() == 0 || (state == STATE::DISABLED && parentElement))
        return;
 
    for (uint8_t i = 0; i < _elements.size(); i++)
    {
        _elements.at(i)->update(c);
    }
 
    bool update = false;
 
    if(keySpace->getState() == STATE::CLICKED)
    {
        size_t len = strlen(kbtextstr);
        if(len < kbtextmaxlen-1)
        {
            kbtextstr[len] = ' ';
            kbtextstr[len+1] = '\0';
            kbText->setText(kbtextstr);
        }
        keySpace->setState(STATE::SELECTED, c->getChannel());
    }
    else if(keyBack->getState() == STATE::CLICKED)
    {
        size_t len = strlen(kbtextstr);
        if(len > 0)
        {
            kbtextstr[len-1] = '\0';
            kbText->setText(GetDisplayText(kbtextstr));
        }
        keyBack->setState(STATE::SELECTED, c->getChannel());
    }
    else if(keyShift->getState() == STATE::CLICKED)
    {
        shift ^= 1;
        keyShift->setState(STATE::SELECTED, c->getChannel());
        update = true;
    }
    else if(keyCaps->getState() == STATE::CLICKED)
    {
        caps ^= 1;
        keyCaps->setState(STATE::SELECTED, c->getChannel());
        update = true;
    }
 
    char txt[2] = { 0, 0 };
 
    startloop:
 
    for(int i=0; i<KB_ROWS; i++)
    {
        for(int j=0; j<KB_COLUMNS; j++)
        {
            if(keys[i][j].ch != '\0')
            {
                if(update)
                {
                    if(shift || caps)
                        txt[0] = keys[i][j].chShift;
                    else
                        txt[0] = keys[i][j].ch;
 
                    keyTxt[i][j]->setText(txt);
                }
 
                if(keyBtn[i][j]->getState() == STATE::CLICKED)
                {
                    size_t len = strlen(kbtextstr);
 
                    if(len < kbtextmaxlen-1)
                    {
                        if(shift || caps)
                        {
                            kbtextstr[len] = keys[i][j].chShift;
                        }
                        else
                        {
                            kbtextstr[len] = keys[i][j].ch;
                        }
                        kbtextstr[len+1] = '\0';
                    }
                    kbText->setText(GetDisplayText(kbtextstr));
                    keyBtn[i][j]->setState(STATE::SELECTED, c->getChannel());
 
                    if(shift)
                    {
                        shift ^= 1;
                        update = true;
                        goto startloop;
                    }
                }
            }
        }
    }
 
    this->toggleFocus(c);
 
    if(focus) // only send actions to this window if it's in focus
    {
        // pad/joystick navigation
        if(c->right())
            this->moveSelectionHor(1);
        else if(c->left())
            this->moveSelectionHor(-1);
        else if(c->down())
            this->moveSelectionVert(1);
        else if(c->up())
            this->moveSelectionVert(-1);
    }
}