Minor fix

* Fix selection error when use delete after to delete the last tas unit
* Fix sel_rect display error
* Add some documents
* Fix layout becoming confusing when secondly open file.

BallanceTASEditor/Core/TASFile.cs

@@ -38,7 +38,8 @@ namespace BallanceTASEditor.Core {
         }
 
         public long GetPointerIndex() {
-            if (mPointer == null) throw new Exception("Data is not ready");
+            // return invalid data to prevent error
+            if (mPointer == null) return -1;//throw new Exception("Data is not ready");
             return mPointerIndex;
         }
 

BallanceTASEditor/Language/CHS.xaml

@@ -31,6 +31,7 @@
     <sys:String x:Key="ui_MainWindow_StatusBar_Mode_Cursor">选择模式</sys:String>
     <sys:String x:Key="ui_MainWindow_StatusBar_Mode_Fill">填充模式</sys:String>
     <sys:String x:Key="ui_MainWindow_StatusBar_Mode_Overwritten">画笔模式</sys:String>
+    <sys:String x:Key="ui_MainWindow_StatusBar_OverwrittenPaste">覆盖式粘贴</sys:String>
     <sys:String x:Key="ui_MainWindow_StatusBar_Selected">已选择：</sys:String>
 
 

BallanceTASEditor/Language/DefaultLanguage.xaml

@@ -31,6 +31,7 @@
     <sys:String x:Key="ui_MainWindow_StatusBar_Mode_Cursor">Select mode</sys:String>
     <sys:String x:Key="ui_MainWindow_StatusBar_Mode_Fill">Fill mode</sys:String>
     <sys:String x:Key="ui_MainWindow_StatusBar_Mode_Overwritten">Draw mode</sys:String>
+    <sys:String x:Key="ui_MainWindow_StatusBar_OverwrittenPaste">Overwritten paste</sys:String>
     <sys:String xml:space="preserve" x:Key="ui_MainWindow_StatusBar_Selected">Selected: </sys:String>
 
 

BallanceTASEditor/MainWindow.xaml

@@ -239,9 +239,13 @@
         </Grid>
 
         <StatusBar x:Name="uiStatusbar" Grid.Row="2">
+            <Grid>
                 <TextBlock x:Name="uiStatusbar_Mode_Cursor" Text="{DynamicResource ui_MainWindow_StatusBar_Mode_Cursor}"/>
                 <TextBlock x:Name="uiStatusbar_Mode_Fill" Text="{DynamicResource ui_MainWindow_StatusBar_Mode_Fill}"/>
                 <TextBlock x:Name="uiStatusbar_Mode_Overwrite" Text="{DynamicResource ui_MainWindow_StatusBar_Mode_Overwritten}"/>
+            </Grid>
+            <Separator/>
+            <TextBlock x:Name="uiStatusbar_OverwrittenPaste" Text="{DynamicResource ui_MainWindow_StatusBar_OverwrittenPaste}"/>
             <Separator/>
             <TextBlock Text="{DynamicResource ui_MainWindow_StatusBar_Selected}"/>
             <TextBlock x:Name="uiStatusbar_Selected" Text="-"/>

BallanceTASEditor/MainWindow.xaml.cs

@@ -22,6 +22,7 @@ namespace BallanceTASEditor {
     public partial class MainWindow : Window {
         public MainWindow() {
             InitializeComponent();
+            mIsHorizontalLayout = true;
 
             // init layout controller
             var headers = new List<TextBlock>();
@@ -56,6 +57,7 @@ namespace BallanceTASEditor {
         TASViewer mViewer;
         TASFlow mFlow;
         TASSlider mSlider;
+        bool mIsHorizontalLayout;
 
         #region ui func
 
@@ -127,6 +129,7 @@ namespace BallanceTASEditor {
 
         private void funcMenu_Display_OverwrittenPaste(object sender, RoutedEventArgs e) {
             uiMenu_Display_OverwrittenPaste.IsChecked = !uiMenu_Display_OverwrittenPaste.IsChecked;
+            uiStatusbar_OverwrittenPaste.Visibility = uiMenu_Display_OverwrittenPaste.IsChecked ? Visibility.Visible : Visibility.Hidden;
 
             GlobalVariable.configManager.Configuration[ConfigManager.CfgNode_IsOverwrittenPaste] = uiMenu_Display_OverwrittenPaste.IsChecked.ToString();
             if (mViewer != null)
@@ -307,6 +310,7 @@ namespace BallanceTASEditor {
 
             uiMenu_Display_OverwrittenPaste.IsChecked = isOverwrittenPaste;
             uiMenu_Display_HorizontalLayout.IsChecked = isHorizontalLayout;
+            uiStatusbar_OverwrittenPaste.Visibility = isOverwrittenPaste ? Visibility.Visible : Visibility.Hidden;
             if (mViewer != null) {
                 mViewer.ChangeOverwrittenMode(isOverwrittenPaste);
                 mViewer.ChangeListLength(itemCount);
@@ -450,6 +454,9 @@ namespace BallanceTASEditor {
         }
 
         private void ChangeLayout(bool isHorizontal) {
+            if (isHorizontal == mIsHorizontalLayout) return;
+            mIsHorizontalLayout = isHorizontal;
+
             // swap window size
             var swap = this.Width;
             this.Width = this.Height;

BallanceTASEditor/UI/TASFlow.cs

@@ -28,8 +28,6 @@ namespace BallanceTASEditor.UI {
 
         public event Action Click;
 
-        private const double SELECTION_HEADER_HEIGHT = 10.0f; // header selection height, originally copied from TASFlowItem class
-
         private readonly TextBlock[] mHeaders;
         private bool mIsHorizontalLayout;
         private Grid uiCoreWindow;
@@ -57,7 +55,7 @@ namespace BallanceTASEditor.UI {
                 // column is tas unit
 
                 // header
-                layout_row_adder(new GridLength(SELECTION_HEADER_HEIGHT, GridUnitType.Pixel));
+                layout_row_adder(GridLength.Auto);
                 for (int r = 0; r < lenHeader; r++) {
                     layout_row_adder(GridLength.Auto);
                 }
@@ -74,7 +72,7 @@ namespace BallanceTASEditor.UI {
                 // column is header count (use start to split, not auto)
 
                 // header
-                layout_column_adder(new GridLength(SELECTION_HEADER_HEIGHT, GridUnitType.Pixel));
+                layout_column_adder(GridLength.Auto);
                 for (int r = 0; r < lenHeader; r++) {
                     if (r == 0 || r == 1) 
                         layout_column_adder(GridLength.Auto);
@@ -249,6 +247,7 @@ namespace BallanceTASEditor.UI {
         private static readonly Color COLOR_UNSET = Color.FromArgb(0, 255, 255, 255);
         private static readonly Color COLOR_SELECTED = Colors.OrangeRed;
         private static readonly Color COLOR_UNSELECTED = Colors.LightGray;
+        private const double SELECTION_HEADER_HEIGHT = 10.0f;
         private const int KEY_COUNT = 9;
 
         public TASFlowUIItem(int column, bool useHorizontalLayout) {
@@ -279,7 +278,10 @@ namespace BallanceTASEditor.UI {
 
             sel_rect.StrokeThickness = 2;
             sel_rect.Stroke = SEL_RECT_STROKE;
-            //sel_rect.Height = SELECTION_HEADER_HEIGHT;    // now sel_rect's size decided by layout
+            if (useHorizontalLayout)
+                sel_rect.Height = SELECTION_HEADER_HEIGHT;
+            else
+                sel_rect.Width = SELECTION_HEADER_HEIGHT;
 
             // keystates item
             keystates = new Rectangle[KEY_COUNT];
@@ -314,6 +316,11 @@ namespace BallanceTASEditor.UI {
             for (int i = 0; i < KEY_COUNT; i++) {
                 UI.Util.SwapGridItemRC(keystates[i]);
             }
+
+            // swap sel_rect height and width
+            var swap = sel_rect.Height;
+            sel_rect.Height = sel_rect.Width;
+            sel_rect.Width = swap;
         }
 
         public void Add(Grid target, Dictionary<Rectangle, CellPosition> map, MouseButtonEventHandler func) {

BallanceTASEditor/UI/TASSlider.cs

@@ -34,8 +34,16 @@ namespace BallanceTASEditor.UI {
         }
 
         public void UpdateRange(TASFile mFile) {
-            components.mSlider.Maximum = mFile.mFrameCount - 1;
+            components.mSlider.Maximum = mFile.mFrameCount == 0 ? 0 : mFile.mFrameCount - 1;
+            var index = mFile.GetPointerIndex();
+            if (index >= 0) {
                 components.mSlider.Value = mFile.GetPointerIndex();
+                components.mSlider.IsEnabled = true;
+            } else {
+                // invalid index, mean slider is useless, disable it
+                components.mSlider.Value = components.mSlider.Maximum;
+                components.mSlider.IsEnabled = false;
+            }
         }
 
         private void func_SliderValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e) {

BallanceTASEditor/UI/TASViewer.cs

@@ -202,12 +202,12 @@ namespace BallanceTASEditor.UI {
                         if (oper == OperationEnum.DeleteBefore) pos -= 1;   // delete after mean delete current selected item
                         if (pos < 0 || pos >= mFile.mFrameCount) return;
 
-                        // only delete before need shift selection
+                        // delete before need shift selection
                         // delete before couldn't cause empty list, so we just need to directly shift
                         if (oper == OperationEnum.DeleteBefore)
                             mSelectionHelp.ShiftTo(false);
                         // also, if we use delete after and delete the tail of item list, we also need to shift pos(use `else if` to prevent double shift)
-                        else if (oper == OperationEnum.DeleteAfter && pos == mFile.mFrameCount) {
+                        else if (oper == OperationEnum.DeleteAfter && pos == mFile.mFrameCount - 1) {
                             // but delete after may cause empty list error(delete the item within only 1 item list)
                             // so we need prevent this situation
                             if (mFile.mFrameCount == 1) mSelectionHelp.Reset(); //yes, reset selection to prevent error

README_ZH.md

@@ -41,13 +41,29 @@
 
 ### 状态栏
 
-在打开文件后，底部状态栏将显示当前的状态：当前工具模式 和 当前选定的区域
+在打开文件后，底部状态栏将显示当前的状态，从左至右分别是：当前工具模式，覆盖式粘贴状态 和 当前选定的区域
 
-## 移动视图
+## 视图
+
+### 基本操作
 
 打开文件后，靠近底部有一个滑条，可以快速滑动到希望浏览的位置。  
 滑条左侧有4个按钮，分别是：快退，退一个单元，进一个单元，快进。快进和快退将一次性前进或后退一个页面的单元数量。
 
+如果要控制界面中显示的TAS单元数量，可以选择编辑 - 项个数进行设置
+
+### 快速操作
+
+键盘上的ASDF四个键从左至右也分别对应滑条左侧的四个按钮的功能。
+
+鼠标滚轮一次可以一次向前或向后滚动一个TAS单元。  
+如果按住Shift滚动鼠标滚轮，可以一次向前或向后滚动一整页。  
+如果按住Ctrl滚动鼠标滚轮，可以增加或减少当前页面显示的TAS单元的个数。
+
+### 横向布局与纵向布局
+
+打开文档后，通过编辑 - 横向布局的勾选来确定启用的布局，不同的布局适用于不同的人，请根据自身喜好选择。
+
 ## 模式介绍
 
 ### 基本模式
@@ -82,7 +98,6 @@
 
 ### 快捷键
 
-* 键盘上的ASDF四个键从左至右也分别对应滑条左侧的四个按钮的功能。
 * `Ctrl + O`：打开文件
 * `Ctrl + S`：保存文件
 * `Ctrl + Z`：撤销