Updated Readme images and remember last used directory

ProcessingGrapher/ProcessingGrapher.pde

@@ -210,6 +210,7 @@ DisposeHandler dh;
 // JavaFX pop-up dialogues
 Stage stage;
 FileChooser fileChooser;
+File currentDirectory = null;
 String userInputString = null;
 int startTime;
 PGraphics mainCanvas;
@@ -534,12 +535,14 @@ void drawProgram() {
 			textAlign(CENTER, CENTER);
 			String frameRateText = "FPS: " + round(frameRate);
 			fill(c_tabbar);
-			rect(width - ((20 + sidebarWidth) * uimult) - textWidth(frameRateText), height - (bottombarHeight * uimult), width - (sidebarWidth * uimult), height);
+			final int cL = width - round((sidebarWidth + 4 + 175) * uimult + textWidth(frameRateText));
+			final int cR = width - round((sidebarWidth + 2 + 175) * uimult);
+			rect(cL, height - (bottombarHeight * uimult), cR, height);
 			fill(c_idletab_text);
-			text(frameRateText, width - ((20 + sidebarWidth) * uimult) - textWidth(frameRateText), height - (bottombarHeight * uimult), width - (sidebarWidth * uimult), height - 3);
+			text(frameRateText, cL, height - (bottombarHeight * uimult), cR, height - round(4*uimult));
 			if (alertActive && !redrawAlert) {
 				fill(c_white, 80);
-				rect(width - ((20 + sidebarWidth) * uimult) - textWidth(frameRateText), height - (bottombarHeight * uimult), width - (sidebarWidth * uimult), height);
+				rect(cL, height - (bottombarHeight * uimult), cR, height);
 			}
 		}
 
@@ -2043,6 +2046,9 @@ void selectOutput(final String message, final String callbackMethod) {
 	if (activeRenderer == FX2D) {
 		fileChooser.setTitle(message);
 
+		if (currentDirectory != null)
+			fileChooser.setInitialDirectory(currentDirectory);
+
 		fileChooser.getExtensionFilters().clear();
 		if (message.contains("CSV")) {
 			fileChooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("Comma Separated", "*.csv"));
@@ -2093,7 +2099,7 @@ void selectInput(final String message, final String callbackMethod) {
 			}
 		});
 	} else {
-		selectInput(message, callbackMethod, null);
+		selectInput(message, callbackMethod, currentDirectory);
 	}
 }
 
@@ -2111,6 +2117,8 @@ void mySelectCallback(File selectedFile, String callbackMethod) {
       Class<?> callbackClass = this.getClass();
       Method selectMethod = callbackClass.getMethod(callbackMethod, new Class[] { File.class });
       selectMethod.invoke(this, new Object[] { selectedFile });
+      if (selectedFile != null)
+      	currentDirectory = selectedFile.getParentFile();
 
     } catch (IllegalAccessException iae) {
       System.err.println(callbackMethod + "() must be public");

README.md

@@ -6,6 +6,7 @@
 This project is a Processing-based serial terminal and graphing program for the analysis and recording of data from serial devices, such as Arduinos. This program is designed as a replacement for the serial monitor contained within the Arduino IDE. The program contains easy-to-use tools to record data received from serial devices, and to plot numerical data on up to 4 separate graphs in real-time. This makes it useful for quickly analysing sensor data from a micro-controller. 
 
 Please let me know if you come across any issues or bugs which need to be fixed!
+
 A full description and set of instructions can be found on my website: [https://wired.chillibasket.com/processing-grapher/](https://wired.chillibasket.com/processing-grapher/)
 </br>
 </br>
@@ -16,8 +17,7 @@ A full description and set of instructions can be found on my website: [https://
 </br>
 </br>
 
-## Features
-1. Easy UI scale and colour theme changing 
+## Features 
 1. Serial terminal monitor
 	1. Connect to any serial port at any baud rate
 	1. Send and receive serial communication
@@ -37,6 +37,7 @@ A full description and set of instructions can be found on my website: [https://
 	1. Add vertical markers/labels to the data
 	1. Apply various filters to remove noise and transform the data
 	1. Save the edited data to a comma delimited file
+1. Easy UI scaling and colour theme switching
 </br>
 </br>
 
@@ -53,7 +54,7 @@ A full description and set of instructions can be found on my website: [https://
 
 ### Using the Program on Linux
 To use the program on Linux, there are two additional steps that need to be taken:
-1. Change the renderer on line 217 to `final String activeRenderer = JAVA2D`. Unfortunately the renderer used on the other platforms (JavaFX) currently has some compatibility issues on Linux.
+1. Change the renderer on line 218 to `final String activeRenderer = JAVA2D`. Unfortunately the renderer used on the other platforms (JavaFX) currently has some compatibility issues on Linux.
 2. If the error message `Permission Denied` appears when trying to connect to a serial port, this means that your current user account doesn't have the permissions set up to access the serial ports. To solve you can either run the program using `sudo`, or you can set up your user so that it has access to the ports using these two commands (replace `<user>` with the account username):
 	- `sudo usermod -a -G dialout <user>`
 	- `sudo usermod -a -G tty <user>` 
@@ -116,7 +117,7 @@ A full set of instructions and documentation can be found on my website at: [htt
     1. ([#36](https://github.com/chillibasket/processing-grapher/issues/36)) Added new buttons to the bottom info bar to quickly connect/disconnect and change the settings of the serial port.
     2. ([#38](https://github.com/chillibasket/processing-grapher/issues/38)) Fixed issue with saving CSV files when the file row count was exceeded.
     3. ([#29](https://github.com/chillibasket/processing-grapher/issues/29)) Fixed graph bug which was introduced when implementing custom x-axis display.
-    4. Implemented additional keyboard shortcuts: CTRL-TAB to change tab, CTRL-S to save file or set output file, CTRL-Q to connect/disconnect serial port, CTRL-R to start/stop data recording, CTRL-O to open a file, CTRL-M to send a serial message from any tab.
+    4. Implemented additional keyboard shortcuts: `CTRL-TAB` to change tab, `CTRL-S` to save file or set output file, `CTRL-Q` to connect/disconnect serial port, `CTRL-R` to start/stop data recording, `CTRL-O` to open a file, `CTRL-M` to send a serial message from any tab.
     5. Fixed some minor bugs and implemented minor improvements to the user experience (UX).
 1. (2nd September 2022) Version 1.5.0
     1. ([#29](https://github.com/chillibasket/processing-grapher/issues/29)) Implemented option to use one of the data signals as the x-axis on the "Live Graph" tab.