Files
mcpe/source/client/gui/components/TextInputBox.cpp
2023-12-19 19:38:17 +02:00

329 lines
6.6 KiB
C++

/********************************************************************
Minecraft: Pocket Edition - Decompilation Project
Copyright (C) 2023 iProgramInCpp
The following code is licensed under the BSD 1 clause license.
SPDX-License-Identifier: BSD-1-Clause
********************************************************************/
#include "TextInputBox.hpp"
#include "client/app/Minecraft.hpp"
#ifndef ORIGINAL_CODE
#ifdef USE_NATIVE_ANDROID
#define HANDLE_CHARS_SEPARATELY // faked though, see platforms/android/minecraftcpp/minecraftcpp.NativeActivity/main.cpp
#endif
TextInputBox::TextInputBox(Screen* parent, int id, int x, int y, int width, int height, const std::string& placeholder, const std::string& text)
{
m_ID = id;
m_xPos = x;
m_yPos = y;
m_width = width;
m_height = height;
m_placeholder = placeholder;
m_text = text;
m_bFocused = false;
m_bEnabled = true;
m_bCursorOn = true;
m_insertHead = 0;
m_lastFlashed = 0;
m_pFont = nullptr;
m_pParent = parent;
}
TextInputBox::~TextInputBox()
{
m_pParent->m_pMinecraft->platform()->hideKeyboard();
}
void TextInputBox::init(Font* pFont)
{
m_pFont = pFont;
}
void TextInputBox::setEnabled(bool bEnabled)
{
m_bEnabled = true;
}
void TextInputBox::keyPressed(Minecraft* minecraft, int key)
{
if (!m_bFocused)
return;
bool bShiftPressed = minecraft->platform()->shiftPressed();
#ifndef HANDLE_CHARS_SEPARATELY
char chr = '\0';
if (key >= AKEYCODE_A && key <= AKEYCODE_Z)
{
chr = char((key - AKEYCODE_A) + (bShiftPressed ? 'A' : 'a'));
}
if (key >= AKEYCODE_0 && key <= AKEYCODE_9)
{
static const char shiftmap[] = { ')', '!', '@', '#', '$', '%', '^', '&', '*', '(' };
chr = char(bShiftPressed ? shiftmap[key - AKEYCODE_0] : (key - AKEYCODE_0 + '0'));
}
switch (key)
{
case AKEYCODE_DEL:
chr = '\b';
break;
case AKEYCODE_FORWARD_DEL:
chr = '\001';
break;
case AKEYCODE_ARROW_LEFT:
chr = '\002';
break;
case AKEYCODE_ARROW_RIGHT:
chr = '\003';
break;
case AKEYCODE_SPACE:
chr = ' ';
break;
case AKEYCODE_COMMA:
chr = bShiftPressed ? '<' : ',';
break;
case AKEYCODE_PERIOD:
chr = bShiftPressed ? '>' : '.';
break;
case AKEYCODE_PLUS:
chr = bShiftPressed ? '+' : '=';
break;
case AKEYCODE_MINUS:
chr = bShiftPressed ? '_' : '-';
break;
case AKEYCODE_SEMICOLON:
chr = bShiftPressed ? ':' : ';';
break;
case AKEYCODE_SLASH:
chr = bShiftPressed ? '?' : '/';
break;
case AKEYCODE_GRAVE:
chr = bShiftPressed ? '~' : '`';
break;
case AKEYCODE_BACKSLASH:
chr = bShiftPressed ? '|' : '\\';
break;
case AKEYCODE_APOSTROPHE:
chr = bShiftPressed ? '"' : '\'';
break;
case AKEYCODE_LEFT_BRACKET:
chr = bShiftPressed ? '{' : '[';
break;
case AKEYCODE_RIGHT_BRACKET:
chr = bShiftPressed ? '}' : ']';
break;
}
#else
char chr = '\0';
// here we'll just use the raw key codes...
#ifdef USE_SDL
#define AKEYCODE_FORWARD_DEL SDLVK_DELETE
#define AKEYCODE_ARROW_LEFT SDLVK_LEFT
#define AKEYCODE_ARROW_RIGHT SDLVK_RIGHT
#define AKEYCODE_DEL SDLVK_BACKSPACE
#elif defined(_WIN32)
#define AKEYCODE_FORWARD_DEL VK_DELETE
#define AKEYCODE_ARROW_LEFT VK_LEFT
#define AKEYCODE_ARROW_RIGHT VK_RIGHT
#define AKEYCODE_DEL VK_BACK
#endif
switch (key)
{
case AKEYCODE_FORWARD_DEL:
chr = '\001';
break;
case AKEYCODE_ARROW_LEFT:
chr = '\002';
break;
case AKEYCODE_ARROW_RIGHT:
chr = '\003';
break;
}
#endif
#ifdef AKEYCODE_FORWARD_DEL
#undef AKEYCODE_FORWARD_DEL
#undef AKEYCODE_ARROW_LEFT
#undef AKEYCODE_ARROW_RIGHT
#endif
#ifdef AKEYCODE_DEL
#undef AKEYCODE_DEL
#endif
if (chr)
charPressed(chr);
}
void TextInputBox::tick()
{
if (!m_lastFlashed)
m_lastFlashed = getTimeMs();
if (m_bFocused)
{
if (getTimeMs() > m_lastFlashed + 500)
{
m_lastFlashed += 500;
m_bCursorOn ^= 1;
}
}
else
{
m_bCursorOn = false;
}
}
void TextInputBox::setFocused(bool b)
{
if (m_bFocused == b)
return;
if (b)
{
int x = (int) (((float) m_xPos) / Gui::InvGuiScale);
int y = (int) (((float) m_yPos) / Gui::InvGuiScale);
int w = (int) (((float) m_width) / Gui::InvGuiScale);
int h = (int) (((float) m_height) / Gui::InvGuiScale);
m_pParent->m_pMinecraft->platform()->showKeyboard(x, y, w, h);
}
else
{
m_pParent->m_pMinecraft->platform()->hideKeyboard();
}
m_bFocused = b;
if (b)
{
m_lastFlashed = getTimeMs();
m_bCursorOn = true;
m_insertHead = int(m_text.size());
}
// don't actually hide the keyboard when unfocusing
// - we may be undoing the work of another text box
}
void TextInputBox::onClick(int x, int y)
{
setFocused(clicked(x, y));
}
void TextInputBox::charPressed(int k)
{
if (!m_bFocused)
return;
if (k == '\b')
{
if (m_text.empty())
return;
if (m_insertHead <= 0)
return;
if (m_insertHead > int(m_text.size()))
m_insertHead = int(m_text.size());
m_text.erase(m_text.begin() + m_insertHead - 1, m_text.begin() + m_insertHead);
m_insertHead--;
return;
}
if (k == '\001') // delete
{
if (m_text.empty())
return;
if (m_insertHead < 0)
return;
if (m_insertHead >= int(m_text.size()))
return;
m_text.erase(m_text.begin() + m_insertHead, m_text.begin() + m_insertHead + 1);
return;
}
if (k == '\002') // left
{
m_insertHead--;
if (m_insertHead < 0)
m_insertHead = 0;
}
if (k == '\003') // right
{
m_insertHead++;
if (!m_text.empty())
{
if (m_insertHead > int(m_text.size()))
m_insertHead = int(m_text.size());
}
else
{
m_insertHead = 0;
}
}
if (k == '\n' || k == '\r')
{
m_bFocused = false;
return;
}
// other unrenderable character?
if (k < ' ' || k > '~')
return;
// note: the width will increase by the same amount no matter where K is appended
int width = m_pFont->width(m_text + char(k));
if (width < m_width - 2)
{
m_text.insert(m_text.begin() + m_insertHead, k);
m_insertHead++;
}
}
void TextInputBox::render()
{
fill(m_xPos, m_yPos, m_xPos + m_width, m_yPos + m_height, 0xFFAAAAAA);
fill(m_xPos + 1, m_yPos + 1, m_xPos + m_width - 1, m_yPos + m_height - 1, 0xFF000000);
int textYPos = (m_height - 8) / 2;
if (m_text.empty())
drawString(m_pFont, m_placeholder, m_xPos + 5, m_yPos + textYPos, 0x404040);
else
drawString(m_pFont, m_text, m_xPos + 5, m_yPos + textYPos, 0xFFFFFF);
if (m_bCursorOn)
{
int xPos = 5;
std::string substr = m_text.substr(0, m_insertHead);
xPos += m_pFont->width(substr);
drawString(m_pFont, "_", m_xPos + xPos, m_yPos + textYPos + 2, 0xFFFFFF);
}
}
bool TextInputBox::clicked(int xPos, int yPos)
{
if (!m_bEnabled) return false;
if (xPos < m_xPos) return false;
if (yPos < m_yPos) return false;
if (xPos >= m_xPos + m_width) return false;
if (yPos >= m_yPos + m_height) return false;
return true;
}
#endif