scummvm/gui/console.h
Torbjörn Andersson 983643bc5a Cache the blended background in a surface, so that the blending only needs
to be made once, instead of whenever the console is redrawn. (This is the
same trick as the About dialog uses.)

It should speed up the drawing quite a bit, though it's not particularly
noticeable on the computer I'm using at the moment, so I can't say for
sure.

svn-id: r18540
2005-07-13 14:38:26 +00:00

146 lines
3.4 KiB
C++

/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2005 The ScummVM project
*
* 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.
*
* $Header$
*/
#ifndef CONSOLE_DIALOG_H
#define CONSOLE_DIALOG_H
#include "gui/dialog.h"
#include "gui/newgui.h"
#include <stdarg.h>
namespace GUI {
enum {
kBufferSize = 32768,
kLineBufferSize = 256,
kHistorySize = 20
};
class ScrollBarWidget;
class ConsoleDialog : public Dialog {
public:
typedef bool (*InputCallbackProc)(ConsoleDialog *console, const char *input, void *refCon);
typedef bool (*CompletionCallbackProc)(ConsoleDialog* console, const char *input, char*& completion, void *refCon);
protected:
Graphics::Surface _canvas;
char _buffer[kBufferSize];
int _linesInBuffer;
int _lineWidth;
int _linesPerPage;
int _currentPos;
int _scrollLine;
int _firstLineInBuffer;
int _promptStartPos;
int _promptEndPos;
bool _caretVisible;
uint32 _caretTime;
enum SlideMode {
kNoSlideMode,
kUpSlideMode,
kDownSlideMode
};
SlideMode _slideMode;
uint32 _slideTime;
ScrollBarWidget *_scrollBar;
// The _callbackProc is called whenver a data line is entered
//
InputCallbackProc _callbackProc;
void *_callbackRefCon;
// _completionCallbackProc is called when tab is pressed
CompletionCallbackProc _completionCallbackProc;
void *_completionCallbackRefCon;
char _history[kHistorySize][kLineBufferSize];
int _historySize;
int _historyIndex;
int _historyLine;
float _widthPercent, _heightPercent;
void slideUpAndClose();
public:
ConsoleDialog(float widthPercent, float heightPercent);
void open();
void close();
void drawDialog();
void handleTickle();
void handleScreenChanged();
void handleMouseWheel(int x, int y, int direction);
void handleKeyDown(uint16 ascii, int keycode, int modifiers);
void handleCommand(CommandSender *sender, uint32 cmd, uint32 data);
int printf(const char *format, ...);
int vprintf(const char *format, va_list argptr);
#undef putchar
void putchar(int c);
void setInputCallback(InputCallbackProc proc, void *refCon) {
_callbackProc = proc;
_callbackRefCon = refCon;
}
void setCompletionCallback(CompletionCallbackProc proc, void *refCon) {
_completionCallbackProc = proc;
_completionCallbackRefCon = refCon;
}
protected:
inline char &buffer(int idx) {
return _buffer[idx % kBufferSize];
}
void drawCaret(bool erase);
void putcharIntern(int c);
void insertIntoPrompt(const char *str);
void print(const char *str);
void updateScrollBuffer();
void scrollToCurrent();
// Line editing
void specialKeys(int keycode);
void nextLine();
void killChar();
void killLine();
void killLastWord();
// History
void addToHistory(const char *str);
void historyScroll(int direction);
};
} // End of namespace GUI
#endif