From a74c61ec5bb35baebba5294aab763f18457d6481 Mon Sep 17 00:00:00 2001
From: Paul Tucker <ptucker@sympatico.ca>
Date: Sat, 25 Mar 2000 14:31:41 +0000
Subject: [PATCH] Updated DispCount handling

---
 harbour/ChangeLog                | 14 ++++++++++++++
 harbour/source/rtl/gtcrs/gtcrs.c | 11 +++++++++++
 harbour/source/rtl/gtdos/gtdos.c | 11 +++++++++--
 harbour/source/rtl/gtpca/gtpca.c | 13 +++++++++++++
 4 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index c8978ce43a..aee3e299fe 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -1,3 +1,17 @@
+20000325-09:22 EST Paul Tucker <ptucker@sympatico.ca>
+   * include/hbapigt.h
+     source/rtl/gtcrs/gtcrs.c
+     source/rtl/gtdos/gtdos.c
+     source/rtl/gtos2/gtos2.c
+     source/rtl/gtpca/gtpca.c
+     source/rtl/gtsln/gtsln.c
+     source/rtl/gtstd/gtstd.c
+     source/rtl/gtwin/gtwin.c
+     source/rtl/gt_tpl/gt_tpl.c
+     + hb_gt_DispCount()
+   * source/rtl/gtapi.c
+     * modified DispCount Handling.
+
 20000325-07:50 EST Paul Tucker <ptucker@sympatico.ca>
    * source/rtl/gtwin/gtwin.c
      * correct handling of the screen buffers and fix a gpf when
diff --git a/harbour/source/rtl/gtcrs/gtcrs.c b/harbour/source/rtl/gtcrs/gtcrs.c
index 5ccbccaea2..2dda5f7d36 100644
--- a/harbour/source/rtl/gtcrs/gtcrs.c
+++ b/harbour/source/rtl/gtcrs/gtcrs.c
@@ -38,6 +38,8 @@
 #include "hbapigt.h"
 #include "hbinit.h"
 
+static USHORT s_uiDispCount;
+
 static void gt_GetMaxRC(int* r, int* c);
 static void gt_GetRC(int* r, int* c);
 static void gt_SetRC(int r, int c);
@@ -111,6 +113,8 @@ void hb_gt_Init( int iFilenoStdin, int iFilenoStdout, int iFilenoStderr )
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_Init()"));
 
+   s_uiDispCount=0;
+
    initscr();
    if( has_colors() )
    {
@@ -363,6 +367,7 @@ void hb_gt_DispBegin( void )
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_DispBegin()"));
 
+   ++s_uiDispCount;
    /* TODO: Is there a way to change screen buffers?
       ie: can we write somewhere without it going to the screen
       and then update the screen from this buffer at a later time?
@@ -374,6 +379,7 @@ void hb_gt_DispEnd()
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_DispEnd()"));
 
+   --s_uiDispCount;
    /* TODO: here we flush the buffer, and restore normal screen writes */
 }
 
@@ -454,3 +460,8 @@ char * hb_gt_Version( void )
 {
    return "Harbour Terminal: Curses";
 }
+
+USHORT hb_gt_DispCount()
+{
+   return s_uiDispCount;
+}
diff --git a/harbour/source/rtl/gtdos/gtdos.c b/harbour/source/rtl/gtdos/gtdos.c
index 1257a113d1..03ded19269 100644
--- a/harbour/source/rtl/gtdos/gtdos.c
+++ b/harbour/source/rtl/gtdos/gtdos.c
@@ -126,6 +126,7 @@ static void hb_gt_GetCursorSize( char * start, char * end );
 #endif
 
 static BOOL s_bBreak; /* Used to signal Ctrl+Break to hb_inkeyPoll() */
+static USHORT s_uiDispCount;
 
 #ifndef __DJGPP__
 #if defined(__WATCOMC__)
@@ -168,6 +169,7 @@ void hb_gt_Init( int iFilenoStdin, int iFilenoStdout, int iFilenoStderr )
    HB_SYMBOL_UNUSED( iFilenoStderr );
 
    s_bBreak = FALSE;
+   s_uiDispCount = 0;
 
 #if defined(__DJGPP__)
    gppconio_init();
@@ -926,7 +928,7 @@ void hb_gt_DispBegin( void )
 
 /* ptucker */
 #ifndef __DJGPP__
-   if( hb_gtDispCount() == 1 )
+   if( ++s_uiDispCount == 1 )
    {
       char FAR * ptr;
       ULONG nSize;
@@ -948,7 +950,7 @@ void hb_gt_DispEnd( void )
 
 /* ptucker */
 #ifndef __DJGPP__
-   if( hb_gtDispCount() == 1 )
+   if( --s_uiDispCount == 0 )
    {
       char FAR * ptr;
       ULONG nSize;
@@ -1074,3 +1076,8 @@ char * hb_gt_Version( void )
 {
    return "Harbour Terminal: DOS console";
 }
+
+USHORT hb_gt_DispCount()
+{
+   return s_uiDispCount;
+}
diff --git a/harbour/source/rtl/gtpca/gtpca.c b/harbour/source/rtl/gtpca/gtpca.c
index 1ca5fc61ba..205d9349a5 100644
--- a/harbour/source/rtl/gtpca/gtpca.c
+++ b/harbour/source/rtl/gtpca/gtpca.c
@@ -63,6 +63,8 @@ static char s_szSpaces[] = "
 
 static void hb_gt_AnsiGetCurPos( USHORT * row, USHORT * col );
 
+static USHORT s_uiDispCount;
+
 void hb_gt_Init( int iFilenoStdin, int iFilenoStdout, int iFilenoStderr )
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_Init()"));
@@ -334,12 +336,18 @@ void hb_gt_SetAttribute( USHORT usTop, USHORT usLeft, USHORT usBottom, USHORT us
 void hb_gt_DispBegin( void )
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_DispBegin()"));
+
+   ++s_uiDispCount;
+
    /* TODO: */
 }
 
 void hb_gt_DispEnd( void )
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_DispEnd()"));
+
+   --s_uiDispCount;
+
    /* TODO: here we flush the buffer, and restore normal screen writes */
 }
 
@@ -387,3 +395,8 @@ char * hb_gt_Version( void )
 {
    return "Harbour Terminal: PC ANSI";
 }
+
+USHORT hb_gt_DispCount()
+{
+   return s_uiDispCount;
+}