text.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef AGI_TEXT_H
#define AGI_TEXT_H

namespace Agi {

struct TextPos_Struct {
    int16 row;
    int16 column;
};

#define TEXTPOSARRAY_MAX 5

struct TextAttrib_Struct {
    byte foreground;
    byte background;
    byte combinedForeground;
    byte combinedBackground;
};

#define TEXTATTRIBARRAY_MAX 5

struct MessageState_Struct {
    uint8 type;
    int16 wanted_Text_Width;
    TextPos_Struct wanted_TextPos;
    bool dialogue_Open;
    uint8 newline_Char;
    bool  window_Active;
    TextPos_Struct textPos;
    TextPos_Struct textPos_Edge;
    int16 textSize_Width;
    int16 textSize_Height;
    uint16 printed_Height;

    int16 backgroundPos_x;
    int16 backgroundPos_y; // original AGI used lowerY here, we use upperY so that upscaling is easier
    int16 backgroundSize_Width;
    int16 backgroundSize_Height;
};

// this defines here are for calculating character-size inside the visual-screen!
#define FONT_VISUAL_WIDTH           4
#define FONT_VISUAL_HEIGHT          8

#define FONT_DISPLAY_WIDTH          8
#define FONT_DISPLAY_HEIGHT         8
#define FONT_ROW_CHARACTERS         25
#define FONT_COLUMN_CHARACTERS      40
#define FONT_BYTES_PER_CHARACTER    8

#define HEIGHT_MAX                  20

#define TEXT_STRING_MAX_SIZE        40

class TextMgr {
private:
    Words *_words;
    GfxMgr *_gfx;
    AgiEngine *_vm;
    SystemUI *_systemUI;

public:
    TextMgr(AgiEngine *vm, Words *words, GfxMgr *gfx);
    ~TextMgr();

    void init(SystemUI *systemUI);

    TextPos_Struct _textPos;
    int16          _textPosArrayCount;
    TextPos_Struct _textPosArray[TEXTPOSARRAY_MAX];

    TextAttrib_Struct _textAttrib;
    int16             _textAttribArrayCount;
    TextAttrib_Struct _textAttribArray[TEXTATTRIBARRAY_MAX];

    uint16 _window_Row_Min;
    uint16 _window_Row_Max;
    int16 _reset_Column;

    void configureScreen(uint16 gameRow);
    uint16 getWindowRowMin();

    void dialogueOpen();
    void dialogueClose();

    void charPos_Clip(int16 &row, int16 &column);
    void charPos_Set(int16 row, int16 column);
    void charPos_Set(TextPos_Struct *posPtr);
    void charPos_Get(int16 &row, int16 &column);
    void charPos_Get(TextPos_Struct *posPtr);
    void charPos_Push();
    void charPos_Pop();
    void charPos_SetInsideWindow(int16 windowRow, int16 windowColumn);
    void charAttrib_Set(byte foreground, byte background);
    byte charAttrib_GetForeground();
    byte charAttrib_GetBackground();
    void charAttrib_Push();
    void charAttrib_Pop();
    byte calculateTextBackground(byte background);

    void display(int16 textNr, int16 textRow, int16 textColumn);
    void displayText(const char *textPtr, bool disabledLook = false);
    void displayCharacter(byte character, bool disabledLook = false);

    void displayTextInsideWindow(const char *textPtr, int16 windowRow, int16 windowColumn);

    MessageState_Struct _messageState;

    void printAt(int16 textNr, int16 textPos_Row, int16 textPos_Column, int16 text_Width);
    void print(int16 textNr);

    bool messageBox(const char *textPtr);
    void messageBox_KeyPress(uint16 newKey);

    bool _messageBoxCancelled;

    void drawMessageBox(const char *textPtr, int16 forcedHeight = 0, int16 wantedWidth = 0, bool forcedWidth = false);
    void getMessageBoxInnerDisplayDimensions(int16 &x, int16 &y, int16 &width, int16 &height);
    bool isMouseWithinMessageBox();
    void closeWindow();

    void statusRow_Set(int16 row);
    int16 statusRow_Get();

    void statusEnable();
    void statusDisable();
    bool statusEnabled();

    void statusDraw();
    void statusClear();

    bool _statusEnabled;
    int16 _statusRow;

    void clearLine(int16 row, byte color);
    void clearLines(int16 row_Upper, int16 row_Lower, byte color);
    void clearBlock(int16 row_Upper, int16 column_Upper, int16 row_Lower, int16 column_Lower, byte color);

    void clearBlockInsideWindow(int16 windowRow, int16 windowColumn, int16 width, byte color);

    bool  _inputEditEnabled;
    byte  _inputCursorChar;

    bool  _optionCommandPromptWindow;

    bool  _promptEnabled;
    int16 _promptRow;
    int16 _promptCursorPos;
    byte  _prompt[42];
    byte  _promptPrevious[42];

    bool inputGetEditStatus();
    void inputEditOn();
    void inputEditOff();
    void inputSetCursorChar(int16 cursorChar);
    byte inputGetCursorChar();

    void promptReset();
    void promptEnable();
    void promptDisable();
    bool promptIsEnabled();

    void promptRow_Set(int16 row);
    int16 promptRow_Get();
    void promptKeyPress(uint16 newKey);
    void promptCancelLine();
    void promptEchoLine();
    void promptRedraw();
    void promptClear(); // for AGI1
    void promptRememberForAutoComplete(bool entered = false); // for auto-completion

    void promptCommandWindow(bool recallLastCommand, uint16 newKey);

    int16 _inputStringRow;
    int16 _inputStringColumn;
    bool  _inputStringEntered;
    int16 _inputStringMaxLen;
    int16 _inputStringCursorPos;
    byte  _inputString[42];

    bool stringWasEntered();
    void stringPos_Get(int16 &row, int16 &column);
    int16 stringGetMaxLen();
    void stringSet(const char *text);
    void stringEdit(int16 stringMaxLen);
    void stringKeyPress(uint16 newKey);
    void stringRememberForAutoComplete(bool entered = false); // for auto-completion

    char *stringPrintf(const char *originalText);
    char *stringWordWrap(const char *originalText, int16 maxWidth, int16 *calculatedWidthPtr = nullptr, int16 *calculatedHeightPtr = nullptr);
};

Common::String rightAlign(Common::String line, va_list args);

} // End of namespace Agi

#endif /* AGI_TEXT_H */