StreamLens/BUTTON_TEXT_DISPLAY_FIX_SUMMARY.md

Button Text Display Fix Summary

Problem Solved ✅

The 1-row high buttons were the correct height, but the text content wasn't showing due to padding and alignment issues.

Root Cause

When buttons were reduced from 3 rows to 1 row:

• Default padding was preventing text from fitting in the reduced space
• Content alignment wasn't optimized for 1-row display
• Label length was too long for compact buttons
• Minimum width was too large for efficient space usage

Solution Applied

1. Removed Button Padding

Before:

#filter-bar Button {
    height: 1;
    /* Default padding took up space */
}

After:

#filter-bar Button {
    height: 1;
    padding: 0;  /* Remove padding to fit text in 1 row */
    text-align: center;  /* Center text in button */
    line-height: 1;  /* Ensure text fits in 1 row */
}

2. Compact Label Format

Before:

• Labels like: "2. CH10-Data (1105)" (20+ characters)
• Spaces between elements
• Full frame type names

After:

• Labels like: "2.CH10(1105)" (12 characters)
• No spaces for compactness
• Abbreviated frame type names

3. Frame Type Abbreviations

Implemented smart abbreviations to fit in 1-row buttons:

Full Name	Abbreviation	Button Label Example
CH10-Data	CH10	2.CH10(1105)
PTP-Signaling	PTP-S	3.PTP-S(240)
PTP-FollowUp	PTP-F	4.PTP-F(56)
PTP-Sync	PTP	5.PTP(89)
UDP	UDP	6.UDP(443)
TMATS	TMATS	7.TMATS(15)
CH10-Multi-Source	Multi	8.Multi(8)

4. Reduced Button Width

Before: min-width: 12; (for longer labels) After: min-width: 10; (for compact labels)

5. Optimized Text Rendering

Before:

content-align: center middle;  /* Didn't work well for 1-row */

After:

text-align: center;  /* Better for 1-row text */
line-height: 1;     /* Ensures text fits exactly */

Visual Result

Before Fix (text not visible):

[                ][                ][                ]

After Fix (text visible):

[1.Overview] [2.CH10(1105)] [3.UDP(443)] [4.PTP-S(240)]

Test Results ✅

✅ Button height set to 1 row
✅ Button padding removed  
✅ Text centered in button
✅ Minimum width reduced for compact labels
✅ Overview button uses compact format: '1.Overview'
✅ Frame type abbreviations working correctly
✅ Text now visible in TUI: " 1.Overview " displayed on line 12

Benefits Achieved

1. Visible Text - Buttons now display their labels properly
2. Compact Design - Maximum information in minimum space
3. Better UX - Users can see what each button does
4. Consistent Layout - All buttons follow same compact format
5. More Screen Space - 1-row buttons free up 2 additional rows for data

Technical Implementation

Files Modified

• filtered_flow_view.py: Updated CSS and button label generation

Key Changes

• FrameTypeButton class: Added _shorten_frame_type() method
• CSS updates: Removed padding, added text alignment, reduced width
• Label format: Changed from "2. CH10-Data (1105)" to "2.CH10(1105)"
• Overview button: Changed from "1. Overview" to "1.Overview"

Backward Compatibility ✅

• All keyboard shortcuts still work (1-9,0 for filtering)
• Same functionality, just more compact display
• Button click behavior unchanged
• Frame type detection unchanged

Usage

The buttons now display clearly in a single row:

• 1.Overview - Shows all flows across all frame types
• 2.CH10(1105) - Shows flows with CH10-Data frames (1105 total packets)
• 3.UDP(443) - Shows flows with UDP frames (443 total packets)
• 4.PTP-S(240) - Shows flows with PTP-Signaling frames (240 total packets)

Users can immediately see:

• Hotkey number (1, 2, 3, etc.)
• Frame type (abbreviated for space)
• Total packet count in parentheses
• Button order by packet count (highest first)

Performance Impact

• No performance change - Same data processing
• Slightly faster rendering - Less text to render per button
• Better space efficiency - More data visible on screen

The button text display issue is now completely resolved! 🎯