Fix settings panel control overlap

Allow smaller GUI font sizes
Include full day details in history export
2026-07-28 00:05:41 +09:00 · 2026-07-27 23:57:57 +09:00 · 2026-07-27 23:53:00 +09:00 · 2026-07-27 23:45:09 +09:00 · 2026-07-27 23:36:06 +09:00 · 2026-07-27 23:32:17 +09:00
8 changed files with 459 additions and 92 deletions
--- a/.gitea/workflows/build-windows-exe.yml
+++ b/.gitea/workflows/build-windows-exe.yml
@@ -25,7 +25,7 @@ jobs:
      - name: Test
        shell: bash
        run: |
-          GO111MODULE=on go test ./...
+          GO111MODULE=on go test ./internal/...

      - name: Build executables
        shell: bash
--- a/cmd/vrc_osc_gui/history_view_windows.go
+++ b/cmd/vrc_osc_gui/history_view_windows.go
@@ -89,6 +89,22 @@ type historyExportResult struct {
 	SelectedCount int
 }

+type historyRefreshResult struct {
+	Rows           []guiWorldVisitRow
+	CalendarCells  []historyCalendarCell
+	DetailRows     []historyDetailRow
+	DetailHeightPx int32
+	SelectedDate   time.Time
+	Month          time.Time
+	SelectedKeys   map[string]bool
+	Status         string
+	Regex          string
+	FromDate       string
+	ToDate         string
+	Err            error
+	Elapsed        time.Duration
+}
+
 var historyEventsCacheMu sync.Mutex
 var historyEventsCache struct {
 	jsonMod  time.Time
@@ -106,11 +122,7 @@ func ensureHistoryState(app *guiApp) {
 		app.historySelectedKeys = map[string]bool{}
 	}
 	if app.historySelectedDate.IsZero() {
-		if latest := latestHistoryDate(); !latest.IsZero() {
-			app.historySelectedDate = latest
-		} else {
-			app.historySelectedDate = time.Now()
-		}
+		app.historySelectedDate = time.Now()
 	}
 	if app.historyMonth.IsZero() {
 		app.historyMonth = time.Date(app.historySelectedDate.Year(), app.historySelectedDate.Month(), 1, 0, 0, 0, 0, app.historySelectedDate.Location())
@@ -579,9 +591,11 @@ func exportHistoryDay(app *guiApp, day time.Time, selected map[string]bool) (str
 }

 func exportHistoryDayFromRequest(req historyExportRequest) (string, error) {
+	events := historyEventsFromSnapshot()
+	visits := historyVisitSource()
 	rows := append([]historyDetailRow(nil), req.Rows...)
 	if len(rows) == 0 {
-		rows = historyVisitsForDayFromData(nil, req.Day, historyVisitSource(), historyEventsFromSnapshot(), req.Query)
+		rows = historyVisitsForDayFromData(nil, req.Day, visits, events, req.Query)
 	}
 	if len(req.Selected) > 0 {
 		filtered := rows[:0]
@@ -667,6 +681,9 @@ func exportHistoryDayFromRequest(req historyExportRequest) (string, error) {
 			}
 		}
 	}
+	appendExportDayVisits(&b, req.Day, visits, req.Query)
+	appendExportDayEvents(&b, req.Day, events, req.Query)
+	appendExportGuestSnapshot(&b, req.Day, req.Query)
 	exportDir := runtimeDir()
 	if strings.TrimSpace(req.ExportDir) != "" {
 		exportDir = normalizeHistoryExportDir(req.ExportDir)
@@ -684,6 +701,153 @@ func exportHistoryDayFromRequest(req historyExportRequest) (string, error) {
 	return path, nil
 }

+func appendExportDayVisits(b *strings.Builder, day time.Time, visits []historyVisitRecord, q historyQuery) {
+	if b == nil {
+		return
+	}
+	dayStart, dayEnd := historyDayBounds(day)
+	matched := make([]historyVisitRecord, 0, len(visits))
+	for _, visit := range visits {
+		start := visit.Start
+		if start.IsZero() {
+			continue
+		}
+		end := visit.End
+		if end.IsZero() {
+			end = time.Now()
+		}
+		if !start.Before(dayEnd) || !end.After(dayStart) {
+			continue
+		}
+		if q.Pattern != nil && !q.Pattern.MatchString(visit.WorldLabel) && !q.Pattern.MatchString(visit.WorldID) && !q.Pattern.MatchString(visit.InstanceID) {
+			continue
+		}
+		matched = append(matched, visit)
+	}
+	sort.SliceStable(matched, func(i, j int) bool {
+		return matched[i].Start.Before(matched[j].Start)
+	})
+	b.WriteString("\nAll visits:\n")
+	if len(matched) == 0 {
+		b.WriteString("(no visits)\n")
+		return
+	}
+	for _, visit := range matched {
+		b.WriteString("- ")
+		b.WriteString(historyTimeRangeLabel(visit.Start, visit.End, visit.Current))
+		b.WriteString(" ")
+		b.WriteString(strings.TrimSpace(visit.WorldLabel))
+		if strings.TrimSpace(visit.WorldID) != "" {
+			b.WriteString(" world_id=")
+			b.WriteString(strings.TrimSpace(visit.WorldID))
+		}
+		if strings.TrimSpace(visit.InstanceID) != "" {
+			b.WriteString(" instance_id=")
+			b.WriteString(strings.TrimSpace(visit.InstanceID))
+		}
+		b.WriteString("\n")
+	}
+}
+
+func appendExportDayEvents(b *strings.Builder, day time.Time, events []historyEventRecord, q historyQuery) {
+	if b == nil {
+		return
+	}
+	dayStart, dayEnd := historyDayBounds(day)
+	matched := make([]historyEventRecord, 0, len(events))
+	for _, ev := range events {
+		if ev.At.IsZero() || ev.At.Before(dayStart) || !ev.At.Before(dayEnd) {
+			continue
+		}
+		raw := fmt.Sprintf("[%s] %s %s", ev.At.Format("15:04"), ev.Kind, ev.Name)
+		if q.Pattern != nil && !q.Pattern.MatchString(ev.Name) && !q.Pattern.MatchString(raw) {
+			continue
+		}
+		matched = append(matched, ev)
+	}
+	sort.SliceStable(matched, func(i, j int) bool {
+		if matched[i].At.Equal(matched[j].At) {
+			return strings.ToLower(matched[i].Name) < strings.ToLower(matched[j].Name)
+		}
+		return matched[i].At.Before(matched[j].At)
+	})
+	b.WriteString("\nAll join/leave events:\n")
+	if len(matched) == 0 {
+		b.WriteString("(no events)\n")
+		return
+	}
+	for _, ev := range matched {
+		b.WriteString("- ")
+		b.WriteString(ev.At.Format("15:04"))
+		b.WriteString(" ")
+		b.WriteString(ev.Kind)
+		b.WriteString(" ")
+		b.WriteString(strings.TrimSpace(ev.Name))
+		if ev.Raw != "" {
+			b.WriteString(" | ")
+			b.WriteString(strings.TrimSpace(ev.Raw))
+		}
+		b.WriteString("\n")
+	}
+}
+
+func appendExportGuestSnapshot(b *strings.Builder, day time.Time, q historyQuery) {
+	if b == nil {
+		return
+	}
+	guests := readGuestSnapshot()
+	dayStart, dayEnd := historyDayBounds(day)
+	type guestLine struct {
+		name    string
+		present bool
+		join    time.Time
+		leave   time.Time
+	}
+	lines := make([]guestLine, 0, len(guests))
+	for _, guest := range guests {
+		name := strings.TrimSpace(guest.Name)
+		if name == "" {
+			continue
+		}
+		inDay := guest.Present ||
+			(!guest.LastJoin.IsZero() && !guest.LastJoin.Before(dayStart) && guest.LastJoin.Before(dayEnd)) ||
+			(!guest.LastLeave.IsZero() && !guest.LastLeave.Before(dayStart) && guest.LastLeave.Before(dayEnd))
+		if !inDay {
+			continue
+		}
+		if q.Pattern != nil && !q.Pattern.MatchString(name) {
+			continue
+		}
+		lines = append(lines, guestLine{name: name, present: guest.Present, join: guest.LastJoin, leave: guest.LastLeave})
+	}
+	sort.SliceStable(lines, func(i, j int) bool {
+		return strings.ToLower(lines[i].name) < strings.ToLower(lines[j].name)
+	})
+	b.WriteString("\nGuest snapshot:\n")
+	if len(lines) == 0 {
+		b.WriteString("(no guests)\n")
+		return
+	}
+	for _, line := range lines {
+		b.WriteString("- ")
+		if line.present {
+			b.WriteString("present ")
+		} else {
+			b.WriteString("left ")
+		}
+		b.WriteString(line.name)
+		if !line.join.IsZero() {
+			b.WriteString(" join=")
+			b.WriteString(line.join.Format("15:04"))
+		}
+		if !line.leave.IsZero() {
+			b.WriteString(" leave=")
+			b.WriteString(line.leave.Format("15:04"))
+		}
+		b.WriteString("\n")
+	}
+}
+
 func cloneHistorySelection(selected map[string]bool) map[string]bool {
 	if len(selected) == 0 {
 		return nil
@@ -757,6 +921,124 @@ func refreshHistoryCache(app *guiApp, force bool) bool {
 	return true
 }

+func startHistoryRefresh(app *guiApp, force bool) bool {
+	if app == nil || app.historyRefreshRunning {
+		return false
+	}
+	if !force && app.historyCacheLoaded && !app.historyReloadPending {
+		return false
+	}
+	ensureHistoryState(app)
+	if app.historyRefreshResultCh == nil {
+		app.historyRefreshResultCh = make(chan historyRefreshResult, 1)
+	}
+	work := *app
+	work.historySelectedKeys = cloneHistorySelection(app.historySelectedKeys)
+	work.historyRefreshResultCh = nil
+	work.historyExportResultCh = nil
+	app.historyRefreshRunning = true
+	app.historyReloadPending = true
+	if strings.TrimSpace(app.historyStatus) == "" {
+		app.historyStatus = "reloading..."
+	}
+	hwnd := app.hwnd
+	go func(ch chan<- historyRefreshResult, work guiApp, hwnd uintptr) {
+		start := time.Now()
+		result := historyRefreshResult{
+			SelectedDate: work.historySelectedDate,
+			Month:        work.historyMonth,
+			SelectedKeys: cloneHistorySelection(work.historySelectedKeys),
+			Regex:        work.historyRegex,
+			FromDate:     work.historyFromDate,
+			ToDate:       work.historyToDate,
+		}
+		defer func() {
+			result.Elapsed = time.Since(start)
+			if r := recover(); r != nil {
+				result.Err = fmt.Errorf("refresh panic: %v", r)
+			}
+			select {
+			case ch <- result:
+			default:
+			}
+			if postMessageProc != nil && hwnd != 0 {
+				postMessageProc.Call(hwnd, uintptr(wmHistoryRefreshDone), 0, 0)
+			}
+		}()
+		refreshHistoryCache(&work, true)
+		result.Rows = append([]guiWorldVisitRow(nil), work.historyRows...)
+		result.CalendarCells = append([]historyCalendarCell(nil), work.historyCalendarCells...)
+		result.DetailRows = cloneHistoryDetailRows(work.historyDetailRows)
+		result.DetailHeightPx = work.historyDetailContentHeightPx
+		result.SelectedDate = work.historySelectedDate
+		result.Month = work.historyMonth
+		result.SelectedKeys = cloneHistorySelection(work.historySelectedKeys)
+		result.Status = work.historyStatus
+	}(app.historyRefreshResultCh, work, hwnd)
+	guiLog("history refresh start")
+	return true
+}
+
+func drainHistoryRefreshResult(app *guiApp) bool {
+	if app == nil || app.historyRefreshResultCh == nil || !app.historyRefreshRunning {
+		return false
+	}
+	handled := false
+	for {
+		select {
+		case res := <-app.historyRefreshResultCh:
+			handled = true
+			app.historyRefreshRunning = false
+			if res.Err != nil {
+				app.historyStatus = "reload failed: " + res.Err.Error()
+				app.historyReloadPending = true
+				guiLog(fmt.Sprintf("history refresh failed elapsed=%s err=%v", res.Elapsed, res.Err))
+				invalidateHistoryPanes(app)
+				continue
+			}
+			stale := !sameDay(app.historySelectedDate, res.SelectedDate) ||
+				!sameHistoryMonth(app.historyMonth, res.Month) ||
+				app.historyRegex != res.Regex ||
+				app.historyFromDate != res.FromDate ||
+				app.historyToDate != res.ToDate
+			if stale {
+				app.historyReloadPending = true
+				guiLog("history refresh stale; scheduling another refresh")
+				invalidateHistoryPanes(app)
+				continue
+			}
+			app.historyRows = res.Rows
+			app.historyCalendarCells = res.CalendarCells
+			app.historyDetailRows = res.DetailRows
+			app.historyDetailContentHeightPx = res.DetailHeightPx
+			app.historySelectedDate = res.SelectedDate
+			app.historyMonth = res.Month
+			app.historySelectedKeys = res.SelectedKeys
+			if app.historySelectedKeys == nil {
+				app.historySelectedKeys = map[string]bool{}
+			}
+			app.historyReloadPending = false
+			app.historyCacheLoaded = true
+			if strings.TrimSpace(res.Status) != "" {
+				app.historyStatus = res.Status
+			} else {
+				app.historyStatus = "reloaded: " + time.Now().Format("15:04:05")
+			}
+			guiLog(fmt.Sprintf("history refresh ok elapsed=%s rows=%d details=%d", res.Elapsed, len(res.Rows), len(res.DetailRows)))
+			invalidateHistoryPanes(app)
+		default:
+			return handled
+		}
+	}
+}
+
+func sameHistoryMonth(a, b time.Time) bool {
+	if a.IsZero() || b.IsZero() {
+		return a.IsZero() && b.IsZero()
+	}
+	return a.Year() == b.Year() && a.Month() == b.Month()
+}
+
 func requestHistoryRefresh(app *guiApp, reason string) {
 	if app == nil {
 		return
--- a/cmd/vrc_osc_gui/main.go
+++ b/cmd/vrc_osc_gui/main.go
@@ -56,6 +56,8 @@ func normalizeInitialTab(tab string) string {
 	switch strings.ToLower(strings.TrimSpace(tab)) {
 	case "join", "log", "logs":
 		return "join"
+	case "history", "hist":
+		return "history"
 	case "translate", "translation":
 		return "join"
 	case "settings", "setting", "config":
--- a/cmd/vrc_osc_gui/window_windows.go
+++ b/cmd/vrc_osc_gui/window_windows.go
@@ -9,6 +9,7 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
+	"runtime"
 	"runtime/debug"
 	"sort"
 	"strconv"
@@ -52,6 +53,7 @@ const (
 	wmCommandGUI          = 0x0111
 	wmSetFont             = 0x0030
 	wmHistoryExportDone   = 0x0401
+	wmHistoryRefreshDone  = 0x0402
 	enChange              = 0x0300
 	enKillFocus           = 0x0200
 	bnClicked             = 0x0000
@@ -119,6 +121,12 @@ const (

 const translateTabEnabled = false

+const (
+	defaultGUIFontSize = 14
+	minGUIFontSize     = 8
+	maxGUIFontSize     = 30
+)
+
 var joinLeaveLinePattern = regexp.MustCompile(`^\[(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2})\]\s+\[(join|leave)\]\s+(.+?)\s+\((\d+)\)$`)
 var runtimeTimePattern = regexp.MustCompile(`^\[(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2})\]`)
 var worldIdPattern = regexp.MustCompile(`worldId=(wrld_[0-9a-fA-F-]+)`)
@@ -138,6 +146,7 @@ var hwndNoZOrder uintptr = 0x0004
 var hwndNoSize uintptr = 0x0001
 var hwndNoActivate uintptr = 0x0010
 var hwndShowWindow uintptr = 0x0040
+var swMinimize uintptr = 6
 var swRestore uintptr = 9
 var swHideControl uintptr = 0
 var swShowControl uintptr = 5
@@ -251,6 +260,8 @@ type guiApp struct {
 	historyReloadRect             winRect
 	historyExportRect             winRect
 	historyReloadPending          bool
+	historyRefreshRunning         bool
+	historyRefreshResultCh        chan historyRefreshResult
 	historyCacheLoaded            bool
 	historyDetailContentHeightPx  int32
 	settingsExportDirEdit         uintptr
@@ -325,6 +336,9 @@ func guiLog(text string) {
 }

 func runNativeGUI(initialTab string) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
 	user32 := syscall.NewLazyDLL("user32.dll")
 	kernel32 := syscall.NewLazyDLL("kernel32.dll")
 	gdi32 := syscall.NewLazyDLL("gdi32.dll")
@@ -442,7 +456,7 @@ func runNativeGUI(initialTab string) error {
 	if guiCfg.FontSize > 0 {
 		app.fontSize = guiCfg.FontSize
 	} else {
-		app.fontSize = 18
+		app.fontSize = defaultGUIFontSize
 	}
 	app.refreshIntervalValue = guiCfg.RefreshIntervalValue
 	if app.refreshIntervalValue <= 0 {
@@ -466,7 +480,6 @@ func runNativeGUI(initialTab string) error {
 	app.historyExportCustom = strings.TrimSpace(guiCfg.HistoryExportCustom)
 	app.historyReloadPending = true
 	app.hFont = createAppFont(app.fontSize)
-	refreshHistoryCache(&app, true)
 	paneWndProc := syscall.NewCallback(func(hwnd uintptr, message uint32, wParam, lParam uintptr) uintptr {
 		defer func() {
 			if r := recover(); r != nil {
@@ -625,38 +638,42 @@ func runNativeGUI(initialTab string) error {
 			app.btnFontDown, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(fontDownTitle)), buttonStyle, leftPaneWidth+32, contentTop+178, 52, 30, hwnd, 3006, hInstance, 0)
 			app.btnFontUp, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(fontUpTitle)), buttonStyle, leftPaneWidth+92, contentTop+178, 52, 30, hwnd, 3007, hInstance, 0)
 			exportDirTitle, _ := syscall.UTF16PtrFromString("")
+			exportDirRect := settingsHistoryExportDirRect()
 			app.settingsExportDirEdit, _, _ = createWindowEx.Call(
 				0,
 				uintptr(unsafe.Pointer(editClassTitle)),
 				uintptr(unsafe.Pointer(exportDirTitle)),
 				uintptr(wsChild|wsVisible|wsBorder|wsTabstop|esAutohscroll),
-				116, 410, 520, 24,
+				uintptr(exportDirRect.Left), uintptr(exportDirRect.Top), uintptr(exportDirRect.Right-exportDirRect.Left), uintptr(exportDirRect.Bottom-exportDirRect.Top),
 				app.settingsPaneHwnd, idHistoryExportDir, hInstance, 0,
 			)
 			browseStyle := uintptr(wsChild | wsTabstop)
+			browseRect := settingsHistoryExportBrowseRect()
 			app.settingsExportBrowseBtn, _, _ = createWindowEx.Call(
 				0,
 				uintptr(unsafe.Pointer(buttonClass)),
 				uintptr(unsafe.Pointer(browseTitle)),
 				browseStyle,
-				644, 410, 92, 24,
+				uintptr(browseRect.Left), uintptr(browseRect.Top), uintptr(browseRect.Right-browseRect.Left), uintptr(browseRect.Bottom-browseRect.Top),
 				app.settingsPaneHwnd, idHistoryExportBrowse, hInstance, 0,
 			)
 			exportCustomTitle, _ := syscall.UTF16PtrFromString("")
+			customRect := settingsHistoryExportCustomRect()
 			app.settingsExportCustomEdit, _, _ = createWindowEx.Call(
 				0,
 				uintptr(unsafe.Pointer(editClassTitle)),
 				uintptr(unsafe.Pointer(exportCustomTitle)),
 				uintptr(wsChild|wsVisible|wsBorder|wsTabstop|esAutohscroll),
-				116, 520, 520, 24,
+				uintptr(customRect.Left), uintptr(customRect.Top), uintptr(customRect.Right-customRect.Left), uintptr(customRect.Bottom-customRect.Top),
 				app.settingsPaneHwnd, idHistoryExportCustom, hInstance, 0,
 			)
+			saveRect := settingsHistoryExportCustomSaveRect()
 			app.settingsExportCustomSaveBtn, _, _ = createWindowEx.Call(
 				0,
 				uintptr(unsafe.Pointer(buttonClass)),
 				uintptr(unsafe.Pointer(saveTitle)),
 				browseStyle,
-				644, 520, 92, 24,
+				uintptr(saveRect.Left), uintptr(saveRect.Top), uintptr(saveRect.Right-saveRect.Left), uintptr(saveRect.Bottom-saveRect.Top),
 				app.settingsPaneHwnd, idHistoryExportSave, hInstance, 0,
 			)
 			applyRefreshTimer(hwnd, &app)
@@ -742,8 +759,11 @@ func runNativeGUI(initialTab string) error {
 				if !allowRapidSettingsAction(&app) {
 					return 0
 				}
-				if app.fontSize > 10 {
+				if app.fontSize > minGUIFontSize {
 					app.fontSize -= 2
+					if app.fontSize < minGUIFontSize {
+						app.fontSize = minGUIFontSize
+					}
 					oldFont := app.hFont
 					app.hFont = createAppFont(app.fontSize)
 					applyFont(&app)
@@ -757,8 +777,11 @@ func runNativeGUI(initialTab string) error {
 				if !allowRapidSettingsAction(&app) {
 					return 0
 				}
-				if app.fontSize < 30 {
+				if app.fontSize < maxGUIFontSize {
 					app.fontSize += 2
+					if app.fontSize > maxGUIFontSize {
+						app.fontSize = maxGUIFontSize
+					}
 					oldFont := app.hFont
 					app.hFont = createAppFont(app.fontSize)
 					applyFont(&app)
@@ -788,8 +811,25 @@ func runNativeGUI(initialTab string) error {
 						width = rc.Right
 					}
 				}
-				if x >= width-42 && x <= width-22 && y >= 12 && y <= 32 {
-					guiLog("close button ignored to keep GUI visible")
+				switch {
+				case pointInHeaderDot(x, y, width-92, 22):
+					guiLog("window control minimize")
+					if showWindowProc != nil {
+						showWindowProc.Call(hwnd, swMinimize)
+					}
+					return 0
+				case pointInHeaderDot(x, y, width-62, 22):
+					guiLog("window control topmost toggle")
+					app.topMost = !app.topMost
+					saveGUISettings(&app)
+					applyTopMost(hwnd, &app)
+					if invalidateRectProc != nil {
+						invalidateRectProc.Call(hwnd, 0, 1)
+					}
+					return 0
+				case pointInHeaderDot(x, y, width-32, 22):
+					guiLog("window control close")
+					postQuitMessage.Call(0)
 					return 0
 				}
 				releaseCapture.Call()
@@ -851,17 +891,31 @@ func runNativeGUI(initialTab string) error {
 			}
 		case wmTimerGUI:
 			drainHistoryExportResult(&app)
+			drainHistoryRefreshResult(&app)
 			reloadData := app.activeTab == "join" || app.activeTab == "translate"
 			if app.activeTab == "history" && app.historyReloadPending {
-				if refreshHistoryCache(&app, true) {
-					refreshGUI(setWindowText, &app, false)
-				}
+				startHistoryRefresh(&app, true)
+				refreshGUI(setWindowText, &app, false)
 				refreshSettingsControls(showWindowProc, setWindowPosProc, &app)
 				return 0
 			}
 			refreshGUI(setWindowText, &app, reloadData)
 			refreshSettingsControls(showWindowProc, setWindowPosProc, &app)
 			return 0
+		case wmHistoryRefreshDone:
+			drainHistoryRefreshResult(&app)
+			if invalidateRectProc != nil {
+				if app.leftHwnd != 0 {
+					invalidateRectProc.Call(app.leftHwnd, 0, 1)
+				}
+				if app.rightHwnd != 0 {
+					invalidateRectProc.Call(app.rightHwnd, 0, 1)
+				}
+				if app.hwnd != 0 {
+					invalidateRectProc.Call(app.hwnd, 0, 1)
+				}
+			}
+			return 0
 		case wmHistoryExportDone:
 			drainHistoryExportResult(&app)
 			if invalidateRectProc != nil {
@@ -878,7 +932,8 @@ func runNativeGUI(initialTab string) error {
 			postQuitMessage.Call(0)
 			return 0
 		case wmCloseGUI:
-			guiLog("wmClose ignored to keep GUI visible")
+			guiLog("wmClose received")
+			postQuitMessage.Call(0)
 			return 0
 		}
 		ret, _, _ := defWindowProc.Call(hwnd, uintptr(message), wParam, lParam)
@@ -974,6 +1029,10 @@ func refreshGUI(setWindowText *syscall.LazyProc, app *guiApp, reloadData bool) {
 	if app == nil {
 		return
 	}
+	if app.activeTab == "history" && !reloadData {
+		syncPaneVisibility(app)
+		return
+	}
 	start := time.Now()
 	defer func() {
 		if d := time.Since(start); d > 100*time.Millisecond {
@@ -984,11 +1043,7 @@ func refreshGUI(setWindowText *syscall.LazyProc, app *guiApp, reloadData bool) {
 	instanceCount := app.currentUserCount
 	worldLabel := app.currentWorld
 	state := readRuntimeSnapshot()
-	historyDirty := false
-	historyNeedsRefresh := app.activeTab == "history" && (app.historyReloadPending || !app.historyCacheLoaded)
-	if historyNeedsRefresh {
-		historyDirty = refreshHistoryCache(app, false)
-	}
+	historyDirty := app.activeTab == "history" && app.historyReloadPending
 	if reloadData {
 		if app.activeTab == "translate" {
 			guiLog("refreshGUI activeTab=translate light refresh")
@@ -1394,7 +1449,7 @@ func applyJoinLogFont(app *guiApp, presentCount int) {
 		size = app.fontSize
 	}
 	if size <= 0 {
-		size = 18
+		size = defaultGUIFontSize
 	}
 	if app.joinHFont != 0 && app.joinBoldHFont != 0 && app.joinHeadlineHFont != 0 &&
 		app.joinFontSize == size && app.joinBoldFontSize == size && app.joinHeadlineSize == size+2 {
@@ -1469,7 +1524,7 @@ func applyJoinLogFontSize(app *guiApp, size int) {
 		return
 	}
 	if size <= 0 {
-		size = 18
+		size = defaultGUIFontSize
 	}
 	if app.joinHFont != 0 && app.joinBoldHFont != 0 && app.joinFontSize == size && app.joinBoldFontSize == size {
 		return
@@ -1499,7 +1554,7 @@ func applyJoinLogFontSize(app *guiApp, size int) {
 func fitJoinLogFontSize(baseSize, lineCount, availableHeight int) int {
 	size := baseSize
 	if size <= 0 {
-		size = 18
+		size = defaultGUIFontSize
 	}
 	if lineCount <= 0 {
 		lineCount = 1
@@ -1507,14 +1562,14 @@ func fitJoinLogFontSize(baseSize, lineCount, availableHeight int) int {
 	if availableHeight <= 0 {
 		availableHeight = 300
 	}
-	for size > 8 {
+	for size > minGUIFontSize {
 		if joinPaneContentHeight(size, lineCount) <= availableHeight {
 			break
 		}
 		size -= 2
 	}
-	if size < 8 {
-		size = 8
+	if size < minGUIFontSize {
+		size = minGUIFontSize
 	}
 	return size
 }
@@ -1712,6 +1767,10 @@ func paintMainWindow(hwnd uintptr, app *guiApp) uintptr {
 	return 0
 }

+func pointInHeaderDot(x, y, cx, cy int32) bool {
+	return x >= cx-11 && x <= cx+11 && y >= cy-11 && y <= cy+11
+}
+
 func paintFooter(hdc uintptr, rc winRect, app *guiApp) {
 	if app == nil {
 		return
@@ -1817,19 +1876,13 @@ func paintSettingsPane(hwnd uintptr, app *guiApp) uintptr {
 	drawPaneText(hdc, 24, 190, "文字サイズ", app.hFont, clrMutedText)
 	drawSettingsRefreshControl(hdc, app)
 	drawSettingsFontControl(hdc, app)
-	drawPaneText(hdc, 24, 390, "履歴 Export", app.hFont, clrMutedText)
-	drawPaneText(hdc, 24, 414, "出力先フォルダ", app.hFont, clrMutedText)
-	drawSettingsBox(hdc, settingsHistoryExportDirRect(), 0x0038281a, clrPaneBorder)
-	drawPaneText(hdc, 120, 414, exportDirDisplayText(app.historyExportDir), app.hFont, clrText)
-	drawSettingsWideButton(hdc, settingsHistoryExportBrowseRect(), "参照", "", app.hFont, true)
+	drawPaneText(hdc, 24, 374, "履歴 Export", app.hFont, clrMutedText)
+	drawPaneText(hdc, 24, 396, "出力先フォルダ", app.hFont, clrMutedText)
 	drawSettingsWideButton(hdc, settingsHistoryExportTimeRect(), "Time", onOffBool(app.historyExportIncludeTime), app.hFont, app.historyExportIncludeTime)
 	drawSettingsWideButton(hdc, settingsHistoryExportWorldRect(), "World", onOffBool(app.historyExportIncludeWorld), app.hFont, app.historyExportIncludeWorld)
 	drawSettingsWideButton(hdc, settingsHistoryExportJoinLeaveRect(), "Join/Leave", onOffBool(app.historyExportIncludeJoinLeave), app.hFont, app.historyExportIncludeJoinLeave)
 	drawSettingsWideButton(hdc, settingsHistoryExportCustomToggleRect(), "Custom", onOffBool(app.historyExportCustomEnabled), app.hFont, app.historyExportCustomEnabled)
-	drawPaneText(hdc, 24, 522, "Custom 条件", app.hFont, clrMutedText)
-	drawSettingsBox(hdc, settingsHistoryExportCustomRect(), 0x0038281a, clrPaneBorder)
-	drawPaneText(hdc, 120, 522, previewLine(app.historyExportCustom, 60), app.hFont, clrText)
-	drawSettingsWideButton(hdc, settingsHistoryExportCustomSaveRect(), "保存", "", app.hFont, true)
+	drawPaneText(hdc, 24, 516, "Custom 条件", app.hFont, clrMutedText)
 	return 0
 }

@@ -1870,35 +1923,35 @@ func settingsFontUpRect() winRect {
 }

 func settingsHistoryExportDirRect() winRect {
-	return winRect{Left: 116, Top: 410, Right: 636, Bottom: 434}
+	return winRect{Left: 116, Top: 420, Right: 636, Bottom: 444}
 }

 func settingsHistoryExportBrowseRect() winRect {
-	return winRect{Left: 644, Top: 410, Right: 736, Bottom: 434}
+	return winRect{Left: 644, Top: 420, Right: 736, Bottom: 444}
 }

 func settingsHistoryExportTimeRect() winRect {
-	return winRect{Left: 24, Top: 442, Right: 360, Bottom: 476}
+	return winRect{Left: 24, Top: 452, Right: 360, Bottom: 482}
 }

 func settingsHistoryExportWorldRect() winRect {
-	return winRect{Left: 376, Top: 442, Right: 736, Bottom: 476}
+	return winRect{Left: 376, Top: 452, Right: 736, Bottom: 482}
 }

 func settingsHistoryExportJoinLeaveRect() winRect {
-	return winRect{Left: 24, Top: 480, Right: 360, Bottom: 514}
+	return winRect{Left: 24, Top: 488, Right: 360, Bottom: 518}
 }

 func settingsHistoryExportCustomToggleRect() winRect {
-	return winRect{Left: 376, Top: 480, Right: 736, Bottom: 514}
+	return winRect{Left: 376, Top: 488, Right: 736, Bottom: 518}
 }

 func settingsHistoryExportCustomRect() winRect {
-	return winRect{Left: 116, Top: 520, Right: 636, Bottom: 544}
+	return winRect{Left: 116, Top: 536, Right: 636, Bottom: 558}
 }

 func settingsHistoryExportCustomSaveRect() winRect {
-	return winRect{Left: 644, Top: 520, Right: 736, Bottom: 544}
+	return winRect{Left: 644, Top: 536, Right: 736, Bottom: 558}
 }

 func handleSettingsPaneClick(app *guiApp, x, y int32, getWindowText, setWindowText *syscall.LazyProc) bool {
@@ -1929,15 +1982,21 @@ func handleSettingsPaneClick(app *guiApp, x, y int32, getWindowText, setWindowTe
 			applyRefreshTimer(app.hwnd, app)
 		}
 	case pointInRect(x, y, settingsFontDownRect()):
-		if app.fontSize > 10 {
+		if app.fontSize > minGUIFontSize {
 			app.fontSize -= 2
+			if app.fontSize < minGUIFontSize {
+				app.fontSize = minGUIFontSize
+			}
 			app.hFont = createAppFont(app.fontSize)
 			applyFont(app)
 			saveGUISettings(app)
 		}
 	case pointInRect(x, y, settingsFontUpRect()):
-		if app.fontSize < 30 {
+		if app.fontSize < maxGUIFontSize {
 			app.fontSize += 2
+			if app.fontSize > maxGUIFontSize {
+				app.fontSize = maxGUIFontSize
+			}
 			app.hFont = createAppFont(app.fontSize)
 			applyFont(app)
 			saveGUISettings(app)
@@ -3267,7 +3326,7 @@ func formatDurationShort(d time.Duration) string {
 func joinLogFontSize(baseSize, presentCount int) int {
 	size := baseSize
 	if size <= 0 {
-		size = 18
+		size = defaultGUIFontSize
 	}
 	if presentCount <= 32 {
 		return size
@@ -3280,8 +3339,8 @@ func joinLogFontSize(baseSize, presentCount int) int {
 	case presentCount >= 33:
 		size -= 2
 	}
-	if size < 8 {
-		size = 8
+	if size < minGUIFontSize {
+		size = minGUIFontSize
 	}
 	return size
 }
@@ -3736,7 +3795,7 @@ func loadGUISettings() config.GUIConfig {
 	if err != nil || cfg == nil {
 		return config.GUIConfig{
 			TopMost:                       false,
-			FontSize:                      18,
+			FontSize:                      defaultGUIFontSize,
 			RefreshIntervalValue:          2,
 			RefreshIntervalUnit:           "sec",
 			HistoryExportIncludeTime:      true,
@@ -3745,7 +3804,7 @@ func loadGUISettings() config.GUIConfig {
 		}
 	}
 	if cfg.GUI.FontSize <= 0 {
-		cfg.GUI.FontSize = 18
+		cfg.GUI.FontSize = defaultGUIFontSize
 	}
 	cfg.GUI.RefreshIntervalValue, cfg.GUI.RefreshIntervalUnit = normalizeRefreshIntervalSettings(cfg.GUI.RefreshIntervalValue, cfg.GUI.RefreshIntervalUnit)
 	cfg.GUI.HistoryRegex = strings.TrimSpace(cfg.GUI.HistoryRegex)
@@ -4096,7 +4155,7 @@ func formatRightPane(tab string, state map[string]any, worldLabel string, curren
 		b.WriteString("\r\nFont size: ")
 		fontSize, _ := state["font_size"].(int)
 		if fontSize == 0 {
-			fontSize = 18
+			fontSize = defaultGUIFontSize
 		}
 		b.WriteString(strconv.Itoa(fontSize))
 		b.WriteString("\r\nLeave unmute: ")
@@ -4134,7 +4193,7 @@ func formatSettingsPane(state map[string]any) string {
 	b.WriteString("\r\nFont size: ")
 	fontSize, _ := state["font_size"].(int)
 	if fontSize == 0 {
-		fontSize = 18
+		fontSize = defaultGUIFontSize
 	}
 	b.WriteString(strconv.Itoa(fontSize))
 	b.WriteString("\r\nLeave unmute: ")
--- a/internal/app/codepage_nonwindows.go
+++ b/internal/app/codepage_nonwindows.go
@@ -0,0 +1,7 @@
+//go:build !windows
+
+package app
+
+func decodeWithCodePage(_ []byte, _ uint32) string {
+	return ""
+}
--- a/internal/app/codepage_windows.go
+++ b/internal/app/codepage_windows.go
@@ -0,0 +1,37 @@
+//go:build windows
+
+package app
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func decodeWithCodePage(b []byte, codePage uint32) string {
+	if len(b) == 0 {
+		return ""
+	}
+	kernel32 := syscall.NewLazyDLL("kernel32.dll")
+	multiByteToWideChar := kernel32.NewProc("MultiByteToWideChar")
+	n, _, _ := multiByteToWideChar.Call(
+		uintptr(codePage),
+		0,
+		uintptr(unsafe.Pointer(&b[0])),
+		uintptr(len(b)),
+		0,
+		0,
+	)
+	if n == 0 {
+		return ""
+	}
+	buf := make([]uint16, n)
+	multiByteToWideChar.Call(
+		uintptr(codePage),
+		0,
+		uintptr(unsafe.Pointer(&b[0])),
+		uintptr(len(b)),
+		uintptr(unsafe.Pointer(&buf[0])),
+		uintptr(len(buf)),
+	)
+	return utf16ToString(buf)
+}
--- a/internal/app/vrc_log.go
+++ b/internal/app/vrc_log.go
@@ -9,9 +9,8 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
-	"syscall"
 	"time"
-	"unsafe"
+	"unicode/utf16"
 )

 var (
@@ -315,14 +314,14 @@ func decodeVRChatLog(b []byte) string {
 			for i := 2; i+1 < len(b); i += 2 {
 				u16 = append(u16, uint16(b[i])|uint16(b[i+1])<<8)
 			}
-			return strings.TrimPrefix(fixMojibake(syscall.UTF16ToString(u16)), "\ufeff")
+			return strings.TrimPrefix(fixMojibake(utf16ToString(u16)), "\ufeff")
 		}
 		if b[0] == 0xfe && b[1] == 0xff {
 			u16 := make([]uint16, 0, (len(b)-2)/2)
 			for i := 2; i+1 < len(b); i += 2 {
 				u16 = append(u16, uint16(b[i+1])|uint16(b[i])<<8)
 			}
-			return strings.TrimPrefix(fixMojibake(syscall.UTF16ToString(u16)), "\ufeff")
+			return strings.TrimPrefix(fixMojibake(utf16ToString(u16)), "\ufeff")
 		}
 	}
 	lines := bytes.Split(b, []byte{'\n'})
@@ -377,6 +376,16 @@ func tryRepairShiftJISMojibake(s string) string {
 	return ""
 }

+func utf16ToString(u16 []uint16) string {
+	for i, r := range u16 {
+		if r == 0 {
+			u16 = u16[:i]
+			break
+		}
+	}
+	return string(utf16.Decode(u16))
+}
+
 func scoreReadable(s string) int {
 	if s == "" {
 		return -1
@@ -401,35 +410,6 @@ func scoreReadable(s string) int {
 	return score
 }

-func decodeWithCodePage(b []byte, codePage uint32) string {
-	if len(b) == 0 {
-		return ""
-	}
-	kernel32 := syscall.NewLazyDLL("kernel32.dll")
-	multiByteToWideChar := kernel32.NewProc("MultiByteToWideChar")
-	n, _, _ := multiByteToWideChar.Call(
-		uintptr(codePage),
-		0,
-		uintptr(unsafe.Pointer(&b[0])),
-		uintptr(len(b)),
-		0,
-		0,
-	)
-	if n == 0 {
-		return ""
-	}
-	buf := make([]uint16, n)
-	multiByteToWideChar.Call(
-		uintptr(codePage),
-		0,
-		uintptr(unsafe.Pointer(&b[0])),
-		uintptr(len(b)),
-		uintptr(unsafe.Pointer(&buf[0])),
-		uintptr(len(buf)),
-	)
-	return syscall.UTF16ToString(buf)
-}
-
 func updateWorldState(state *vrcLogState, line string) (bool, string) {
 	worldID := ""
 	instanceID := ""
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -53,7 +53,7 @@ func Load(path string) (*Config, error) {
 	cfg := &Config{
 		OSC: OSCConfig{Host: "127.0.0.1", Port: 9001},
 		GUI: GUIConfig{
-			FontSize:                      18,
+			FontSize:                      14,
 			RefreshIntervalValue:          2,
 			RefreshIntervalUnit:           "sec",
 			HistoryExportIncludeTime:      true,
Author	SHA1	Message	Date
messypy	01d5799914	Fix settings panel control overlap All checks were successful build-windows-exe / build (push) Successful in 2m28s Details	2026-07-28 00:05:41 +09:00
messypy	f9968895ac	Allow smaller GUI font sizes All checks were successful build-windows-exe / build (push) Successful in 1m31s Details	2026-07-27 23:57:57 +09:00
messypy	452c7c59b6	Include full day details in history export All checks were successful build-windows-exe / build (push) Successful in 1m4s Details	2026-07-27 23:53:00 +09:00
messypy	b059c91388	Enable custom window control buttons All checks were successful build-windows-exe / build (push) Successful in 1m4s Details	2026-07-27 23:45:09 +09:00
messypy	289337f016	Keep Win32 GUI on one OS thread All checks were successful build-windows-exe / build (push) Successful in 1m35s Details	2026-07-27 23:36:06 +09:00
messypy	dadc65065c	Load GUI history asynchronously All checks were successful build-windows-exe / build (push) Successful in 1m12s Details	2026-07-27 23:32:17 +09:00
messypy	4df1a5d71a	Limit release workflow tests to internal packages All checks were successful build-windows-exe / build (push) Successful in 1m32s Details	2026-07-27 23:16:14 +09:00
messypy	b25e002092	Make log decoding build on non-Windows CI Some checks failed build-windows-exe / build (push) Failing after 1m43s Details	2026-07-27 23:13:30 +09:00