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4523ce9f7d
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@526 d0cd1f9f-072b-0410-8dd7-cf729c803f20
104 lines
3.6 KiB
C++
104 lines
3.6 KiB
C++
/**********************************************************************
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* File: debugwin.h
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* Description: Portable debug window class.
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* Author: Ray Smith
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* Created: Wed Feb 21 15:36:59 MST 1996
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*
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* (C) Copyright 1996, Hewlett-Packard Co.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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#ifndef DEBUGWIN_H
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#define DEBUGWIN_H
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#include "host.h"
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#include "params.h"
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#ifdef __MAC__
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#include <lwindow.h>
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#include <lcommander.h>
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#endif
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//the following define the default position of a debug window
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//if not specified at construction
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#define DEBUG_WIN_XPOS 50 //default position
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#define DEBUG_WIN_YPOS 30 //default position
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#define DEBUG_WIN_XSIZE 700 //default size
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#define DEBUG_WIN_YSIZE 300 //default size
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// Should remain a global parameter, since this is only used for debug editor.
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extern DLLSYM INT_VAR_H (debug_lines, 256, "Number of lines in debug window");
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//the API for the debug window is simple, see below.
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//Most of its behaviour is its UI.
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//It has a scrollable text area (most of the window)
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//It has a stop control.
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//It has a clear button.
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//A dprintf to the window causes the text to be sent to the
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//text area. If the stop control is set, then the dprintf
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//blocks (does not display anything or return) until the stop
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//is released.
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//In multi-threaded apps, other threads and the UI continue to
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//function during the stop. Only the calling thread is blocked.
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//Pressing the clear button erases all text from the window.
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//As text is sent to the window, it scrolls up so that the most
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//recent output is visible. If the user has scrolled back, this
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//does not happen. If the user scrolls back to the bottom, then
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//the scrolling turns back on.
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//If the user destroys the window, it never comes back.
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class DLLSYM DEBUG_WIN
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{
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public:
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//the constructor creates the window, the destructor kills it
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DEBUG_WIN ( //constructor
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const char *title, //of window
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inT32 xpos = DEBUG_WIN_XPOS,//initial position
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inT32 ypos = DEBUG_WIN_YPOS,//in pixels
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//initial size
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inT32 xsize = DEBUG_WIN_XSIZE,
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//in pixels
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inT32 ysize = DEBUG_WIN_YSIZE,
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//default scroll size (textlines)
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inT32 buflines = debug_lines);
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~DEBUG_WIN (); //destructor
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void dprintf ( //printf to window
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const char *format, ...); //message
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void await_destruction(); //wait for user to close
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#ifdef __MAC__
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static void SetCommander(LCommander *pCommander);
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#endif
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private:
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#ifdef __MSW32__
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HWND handle; //handle to window
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char *shm_mem; //shared memory
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char *msg_end; //current string
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HANDLE shm_hand; //handle to it
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HANDLE dbg_process; //handle to it
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HANDLE dbg_thread; //handle to it
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#endif
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#ifdef __UNIX__
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FILE *fp; /*return file */
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#endif
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#ifdef __MAC__
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LWindow *pWindow;
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#endif
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};
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#endif
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