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Add click and drag to inspect ping history, with a LIVE button to resume #122

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Merged
cnlohr merged 2 commits into from
Aug 10, 2026
Merged

Add click and drag to inspect ping history, with a LIVE button to resume #122

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7f67e45
Add click and drag to inspect ping history, with a LIVE button to res…
bjj Aug 2, 2026
4b92cc1
Use constants for the LIVE button position.
bjj Aug 7, 2026
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46 changes: 41 additions & 5 deletions cnping.c
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Original file line number Diff line number Diff line change
Expand Up @@ -69,13 +69,18 @@ uint8_t pattern[8] = {0xDE, 0xAD, 0xBE, 0xEF, 0xDE, 0xAD, 0xBE, 0xEF};

#define PINGCYCLEWIDTH 8192
#define TIMEOUT 4
#define BUTTON_X 34
#define BUTTON_Y 16

double PingSendTimes[PINGCYCLEWIDTH];
double PingRecvTimes[PINGCYCLEWIDTH];
int current_cycle = 0;

int ExtraPingSize;
int in_histogram_mode, in_frame_mode = 1;
int in_scrollback_mode;
int view_cycle;
int drag_lastx;
void HandleGotPacket( int seqno, int timeout );

#if defined( WINDOWS ) || defined( WIN32 )
Expand Down Expand Up @@ -241,8 +246,26 @@ void HandleKey( int keycode, int bDown )

}
}
void HandleButton( int x, int y, int button, int bDown ){}
void HandleMotion( int x, int y, int mask ){}
void HandleButton( int x, int y, int button, int bDown )
{
if( button != 1 || !bDown ) return;
drag_lastx = x;
if( in_scrollback_mode && x >= screenx-BUTTON_X && y <= BUTTON_Y ) in_scrollback_mode = 0;
}

void HandleMotion( int x, int y, int mask )
{
if( !( mask & 1 ) ) return;
if( !in_scrollback_mode )
{
view_cycle = current_cycle;
in_scrollback_mode = 1;
}
view_cycle += x - drag_lastx;
drag_lastx = x;
if( view_cycle < 0 ) view_cycle = 0;
if( view_cycle >= current_cycle ) in_scrollback_mode = 0;
}
void HandleDestroy() { exit(0); }


Expand All @@ -253,7 +276,7 @@ double GetWindMaxPingTime( void )

for( i = 0; i < screenx; i++ )
{
int index = ((current_cycle - i - 1) + PINGCYCLEWIDTH) & (PINGCYCLEWIDTH-1);
int index = ((view_cycle - i - 1) + PINGCYCLEWIDTH) & (PINGCYCLEWIDTH-1);
double st = PingSendTimes[index];
double rt = PingRecvTimes[index];

Expand Down Expand Up @@ -424,6 +447,9 @@ void DrawFrame( void )

double now = OGGetAbsoluteTime();

if( !in_scrollback_mode ) view_cycle = current_cycle;
else if( current_cycle - view_cycle > PINGCYCLEWIDTH ) view_cycle = current_cycle - PINGCYCLEWIDTH;

double totaltime = 0;
int totalcountok = 0;
int totalcountloss = 0;
Expand All @@ -436,7 +462,7 @@ void DrawFrame( void )

for( i = 0; i < screenx; i++ )
{
int index = ((current_cycle - i - 1) + PINGCYCLEWIDTH) & (PINGCYCLEWIDTH-1);
int index = ((view_cycle - i - 1) + PINGCYCLEWIDTH) & (PINGCYCLEWIDTH-1);
double st = PingSendTimes[index];
double rt = PingRecvTimes[index];

Expand Down Expand Up @@ -483,7 +509,7 @@ void DrawFrame( void )

for( i = 0; i < screenx; i++ )
{
int index = ((current_cycle - i - 1) + PINGCYCLEWIDTH) & (PINGCYCLEWIDTH-1);
int index = ((view_cycle - i - 1) + PINGCYCLEWIDTH) & (PINGCYCLEWIDTH-1);
double st = PingSendTimes[index];
double rt = PingRecvTimes[index];

Expand Down Expand Up @@ -530,6 +556,16 @@ void DrawFrame( void )
globallost, globalrx+globallost, globallost*100.0f/(globalrx+globallost), loss );

DrawMainText( stbuf );

if( in_scrollback_mode )
{
CNFGColor( 0xff0000ff );
CNFGTackRectangle( screenx-BUTTON_X, 2, screenx-2, BUTTON_Y );
CNFGColor( 0xffffffff );
CNFGPenX = screenx-BUTTON_X+4; CNFGPenY = 5;
CNFGDrawText( "LIVE", 2 );
}

OGUSleep( 1000 );
}

Expand Down