Use bold font to indicate hexadecimal position

Also use bold for hexidecimal on binary chunk export position/length
Tweaks to binary chunk export design
Grouping variables to help identify settings

BinaryChunkExportForm.cs

@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using System.Windows.Forms;
+using System.Drawing;
 
 namespace Binxelview
 {
@@ -16,6 +17,10 @@ public BinaryChunkExportForm(long startPosition, bool hex, byte[] data)
             startNumericUpDown.Value = startPosition;
             startNumericUpDown.Hexadecimal = hex;
             lengthNumericUpDown.Hexadecimal = hex;
+            if (startNumericUpDown.Hexadecimal)
+                startNumericUpDown.Font = new Font(startNumericUpDown.Font, FontStyle.Bold);
+            if (lengthNumericUpDown.Hexadecimal)
+                lengthNumericUpDown.Font = new Font(lengthNumericUpDown.Font, FontStyle.Bold);
         }
 
         private void saveButton_Click(object sender, EventArgs e)

BinxelviewForm.cs

@@ -15,52 +15,53 @@ public partial class BinxelviewForm : Form
         const int PALETTE_BITS = 14; // maximum bits to fill 128 x 128 square
         const int PALETTE_DIM = 128; // should match paletteBox size
 
+        enum PaletteMode
+        {
+            PALETTE_CUSTOM = 0, // entries below are same order as comboBoxPalette.Items
+            PALETTE_RGB,
+            PALETTE_RANDOM,
+            PALETTE_GREY,
+            PALETTE_CUBEHELIX,
+        };
+
         byte[] data = {};
         string data_path = "";
         string data_file = "";
         long pos_byte = 0;
         int pos_bit = 0;
-        int zoom = 2;
-        bool hidegrid = false;
+        int next_increment_byte = 1;
+        int next_increment_bit = 0;
+        int selected_tile = -1;
+        long selected_pos = -1;
 
         Preset preset;
         Preset default_preset;
         List<Preset> presets;
 
         Bitmap palette_bmp = new Bitmap(PALETTE_DIM, PALETTE_DIM);
+        Bitmap pixel_bmp = null;
         Color[] palette = new Color[PALETTE_DIM * PALETTE_DIM];
-        int[] palette_raw = new int[PALETTE_DIM * PALETTE_DIM];
+        int[] palette_raw = new int[PALETTE_DIM * PALETTE_DIM]; // int version of palette
+        string palette_error = "";
+        int background_raw = SystemColors.Control.ToArgb(); // int version of background setting
         int[] twiddle_cache = null;
         int twiddle_cache_order = 0;
         int twiddle_cache_w = 0;
         int twiddle_cache_h = 0;
+        bool disable_pixel_redraw = false; // used to temporarily block redraws during repeated updates
+        Font posfont_regular, posfont_bold;
+        Random random = new Random();
+
+        // settings
+        int zoom = 2;
+        bool hidegrid = false;
         Color background = SystemColors.Control;
-        int background_raw = SystemColors.Control.ToArgb();
         PaletteMode palette_mode = PaletteMode.PALETTE_RGB;
-        string palette_error = "";
-
-        Bitmap pixel_bmp = null;
-        bool disable_pixel_redraw = false;
         bool decimal_position = false;
-        int next_increment_byte = 1;
-        int next_increment_bit = 0;
-        int selected_tile = -1;
-        long selected_pos = -1;
         bool snap_scroll = true;
         bool horizontal_layout = false;
         int twiddle = 0;
 
-        Random random = new Random();
-
-        enum PaletteMode
-        {
-            PALETTE_CUSTOM = 0, // entries below are same order as comboBoxPalette.Items
-            PALETTE_RGB,
-            PALETTE_RANDOM,
-            PALETTE_GREY,
-            PALETTE_CUBEHELIX,
-        };
-
         //
         // Preset
         //
@@ -1193,6 +1194,9 @@ private void exitToolStripMenuItem_Click(object sender, EventArgs e)
 
         private void BinxelviewForm_Load(object sender, EventArgs e)
         {
+            posfont_regular = new Font(numericPosByte.Font, FontStyle.Regular);
+            posfont_bold = new Font(numericPosByte.Font, FontStyle.Bold);
+
             // initialize Auto palette selection
             comboBoxPalette.SelectedIndex = (int)PaletteMode.PALETTE_RGB - 1;
 
@@ -1212,6 +1216,7 @@ private void BinxelviewForm_Load(object sender, EventArgs e)
             refreshPalette();
             bgBox.BackColor = background;
             redrawPixels();
+            numericPosByte.Font = decimal_position ? posfont_regular : posfont_bold;
         }
 
         private void BinxelviewForm_DragDrop(object sender, DragEventArgs e)
@@ -1578,6 +1583,7 @@ private void decimalPositionToolStripMenuItem_Click(object sender, EventArgs e)
             decimalPositionToolStripMenuItem.Checked = true;
             hexadecimalPositionToolStripMenuItem.Checked = false;
             decimal_position = true;
+            numericPosByte.Font = posfont_regular;
             updatePos();
         }
 
@@ -1586,6 +1592,7 @@ private void hexadecimalPositionToolStripMenuItem_Click(object sender, EventArgs
             decimalPositionToolStripMenuItem.Checked = false;
             hexadecimalPositionToolStripMenuItem.Checked = true;
             decimal_position = false;
+            numericPosByte.Font = posfont_bold;
             updatePos();
         }
 

readme.txt

@@ -153,7 +153,7 @@ Other Notes
 -----------
 
 Due to signed 32-bit integer limitations of C sharp, files must be less than 2GB in size.
-To inspect extremely large files, you may wish to split them first.
+To inspect extremely large files, you may have to split them first.
 
 The Twiddle options will rearrange the pixel X and Y within a tile to use a
 Morton (Z/N) ordering, commonly seen in square textures "twiddled" or "swizzled" for
@@ -183,6 +183,7 @@ Changes
 - Right click context menu option to copy to the palette starting from the selected pixel.
 - PS1 15BPP and 4BPP presets. (Contributor: HeyItsLollie)
 - VGA Palette preset.
+- Indicate hexadecimal position with bold font.
 
 1.5.0.0 (2020-07-31)
 - Twiddle option for inspecting textures stored with morton ordering of pixels.