WIZARDISHUNGRY

Dynamically size terminal using SIGWINCH

f18180fef4

dump1090.c

@@ -38,6 +38,27 @@ void sigintHandler(int dummy) {
     Modes.exit = 1;           // Signal to threads that we are done
 }
 //
+// =============================== Terminal handling ========================
+//
+#ifndef _WIN32
+// Get the number of rows after the terminal changes size.
+int getTermRows() { 
+    struct winsize w; 
+    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w); 
+    return (w.ws_row); 
+} 
+
+// Handle resizing terminal
+void sigWinchCallback() {
+    signal(SIGWINCH, SIG_IGN);
+    Modes.interactive_rows = getTermRows();
+    interactiveShowData();
+    signal(SIGWINCH, sigWinchCallback); 
+}
+#else 
+int getTermRows() { return MODES_INTERACTIVE_ROWS;}
+#endif
+//
 // =============================== Initialization ===========================
 //
 void modesInitConfig(void) {
@@ -54,7 +75,7 @@ void modesInitConfig(void) {
     Modes.net_output_beast_port   = MODES_NET_OUTPUT_BEAST_PORT;
     Modes.net_input_beast_port    = MODES_NET_INPUT_BEAST_PORT;
     Modes.net_http_port           = MODES_NET_HTTP_PORT;
-    Modes.interactive_rows        = MODES_INTERACTIVE_ROWS;
+    Modes.interactive_rows        = getTermRows();
     Modes.interactive_delete_ttl  = MODES_INTERACTIVE_DELETE_TTL;
     Modes.interactive_display_ttl = MODES_INTERACTIVE_DISPLAY_TTL;
     Modes.fUserLat                = MODES_USER_LATITUDE_DFLT;
@@ -532,6 +553,11 @@ int main(int argc, char **argv) {
         }
     }
 
+#ifndef _WIN32
+    // Setup for SIGWINCH for handling lines
+    if (Modes.interactive) {signal(SIGWINCH, sigWinchCallback);}
+#endif
+
     // Initialization
     modesInit();
 

dump1090.h

@@ -37,7 +37,7 @@
 // MinorVer changes when additional features are added, but not for bug fixes (range 00-99)
 // DayDate & Year changes for all changes, including for bug fixes. It represent the release date of the update
 //
-#define MODES_DUMP1090_VERSION     "1.07.0710.13"
+#define MODES_DUMP1090_VERSION     "1.07.2202.14"
 
 // ============================= Include files ==========================
 
@@ -56,6 +56,7 @@
     #include <fcntl.h>
     #include <ctype.h>
     #include <sys/stat.h>
+    #include <sys/ioctl.h>
     #include "rtl-sdr.h"
     #include "anet.h"
 #else

view1090.c

@@ -38,6 +38,27 @@ void sigintHandler(int dummy) {
     Modes.exit = 1;           // Signal to threads that we are done
 }
 //
+// =============================== Terminal handling ========================
+//
+#ifndef _WIN32
+// Get the number of rows after the terminal changes size.
+int getTermRows() { 
+    struct winsize w; 
+    ioctl(STDOUT_FILENO, TIOCGWINSZ, &w); 
+    return (w.ws_row); 
+} 
+
+// Handle resizing terminal
+void sigWinchCallback() {
+    signal(SIGWINCH, SIG_IGN);
+    Modes.interactive_rows = getTermRows();
+    interactiveShowData();
+    signal(SIGWINCH, sigWinchCallback); 
+}
+#else 
+int getTermRows() { return MODES_INTERACTIVE_ROWS;}
+#endif
+//
 // =============================== Initialization ===========================
 //
 void view1090InitConfig(void) {
@@ -49,7 +70,7 @@ void view1090InitConfig(void) {
     Modes.check_crc               = 1;
     strcpy(View1090.net_input_beast_ipaddr,VIEW1090_NET_OUTPUT_IP_ADDRESS); 
     Modes.net_input_beast_port    = MODES_NET_OUTPUT_BEAST_PORT;
-    Modes.interactive_rows        = MODES_INTERACTIVE_ROWS;
+    Modes.interactive_rows        = getTermRows();
     Modes.interactive_delete_ttl  = MODES_INTERACTIVE_DELETE_TTL;
     Modes.interactive_display_ttl = MODES_INTERACTIVE_DISPLAY_TTL;
     Modes.fUserLat                = MODES_USER_LATITUDE_DFLT;
@@ -174,6 +195,11 @@ int main(int argc, char **argv) {
         }
     }
 
+#ifndef _WIN32
+    // Setup for SIGWINCH for handling lines
+    if (Modes.interactive) {signal(SIGWINCH, sigWinchCallback);}
+#endif
+
     // Initialization
     view1090Init();