Implement keyboard shortcuts dialog and localization

src/bin/edit/draw_menubar.rs

@@ -178,3 +178,58 @@ pub fn draw_dialog_about(ctx: &mut Context, state: &mut State) {
         state.wants_about = false;
     }
 }
+
+pub fn draw_dialog_shortcuts(ctx: &mut Context, state: &mut State) {
+    ctx.modal_begin("Shortcuts", loc(LocId::KeyboardShortcutDialogTitle));
+    {
+        ctx.block_begin("content");
+        ctx.inherit_focus();
+        ctx.attr_padding(Rect::three(1, 2, 1));
+        {
+            ctx.attr_position(Position::Center);
+
+            let shortcuts = [
+                (loc(LocId::EditCopy), "Ctrl + C"),
+                (loc(LocId::EditCut), "Ctrl + X"),
+                (loc(LocId::EditPaste), "Ctrl + V"),
+                (loc(LocId::EditUndo), "Ctrl + Z"),
+                (loc(LocId::EditRedo), "Ctrl + Y"),
+                (loc(LocId::EditFind), "Ctrl + F"),
+                (loc(LocId::EditReplace), "Ctrl + R"),
+                (loc(LocId::EditSelectAll), "Ctrl + A"),
+                (loc(LocId::FileNew), "Ctrl + N"),
+                (loc(LocId::FileOpen), "Ctrl + O"),
+                (loc(LocId::FileSave), "Ctrl + S"),
+                (loc(LocId::FileClose), "Ctrl + W"),
+                (loc(LocId::FileExit), "Ctrl + Q"),
+                (loc(LocId::FileGoto), "Ctrl + G"),
+                (loc(LocId::ShortcutSelectLine), "Ctrl + L"),
+            ];
+
+            ctx.table_begin("shortcuts_table");
+            ctx.table_set_cell_gap(Size { width: (5), height: (0) });
+            for (desc, key) in shortcuts.iter() {
+                ctx.table_next_row();
+                ctx.label("shortcut_desc", desc);
+                ctx.label("shortcut_key", key);
+            }
+            ctx.table_end();
+
+            ctx.block_begin("choices");
+            ctx.inherit_focus();
+            ctx.attr_padding(Rect::three(1, 2, 0));
+            ctx.attr_position(Position::Center);
+            {
+                if ctx.button("ok", loc(LocId::Ok), ButtonStyle::default()) {
+                    state.wants_shortcuts_list = false;
+                }
+                ctx.inherit_focus();
+            }
+            ctx.block_end();
+        }
+        ctx.block_end();
+    }
+    if ctx.modal_end() {
+        state.wants_shortcuts_list = false;
+    }
+}

src/bin/edit/draw_statusbar.rs

@@ -25,6 +25,7 @@ pub fn draw_statusbar(ctx: &mut Context, state: &mut State) {
         let mut tb = doc.buffer.borrow_mut();
 
         ctx.table_next_row();
+        ctx.label("help-hint", "[F1=Help]");
 
         if ctx.button("newline", if tb.is_crlf() { "CRLF" } else { "LF" }, ButtonStyle::default()) {
             let is_crlf = tb.is_crlf();
@@ -121,7 +122,7 @@ pub fn draw_statusbar(ctx: &mut Context, state: &mut State) {
                     }
                 }
                 ctx.list_end();
-
+                
                 ctx.list_begin("width");
                 ctx.attr_padding(Rect::two(0, 2));
                 {
@@ -171,7 +172,7 @@ pub fn draw_statusbar(ctx: &mut Context, state: &mut State) {
         if tb.is_dirty() {
             ctx.label("dirty", "*");
         }
-
+        
         ctx.block_begin("filename-container");
         ctx.attr_intrinsic_size(Size { width: COORD_TYPE_SAFE_MAX, height: 1 });
         {

src/bin/edit/localization.rs

@@ -91,6 +91,9 @@ pub enum LocId {
     FileOverwriteWarning,
     FileOverwriteWarningDescription,
 
+    // Keyboard shortcuts dialog
+    KeyboardShortcutDialogTitle,
+    ShortcutSelectLine,
     Count,
 }
 
@@ -959,6 +962,34 @@ const S_LANG_LUT: [[&str; LangId::Count as usize]; LocId::Count as usize] = [
         /* zh_hans */ "文件已存在。要覆盖它吗？",
         /* zh_hant */ "檔案已存在。要覆蓋它嗎？",
     ],
+    //KeyboardShortcutsDialogTitle
+    [
+        /* en      */ "Keyboard Shortcuts",
+        /* de      */ "Tastenkürzel",
+        /* es      */ "Atajos de teclado",
+        /* fr      */ "Raccourcis clavier",
+        /* it      */ "Scorciatoie da tastiera",
+        /* ja      */ "キーボードショートカット",
+        /* ko      */ "키보드 단축키",
+        /* pt_br   */ "Atalhos de teclado",
+        /* ru      */ "Сочетания клавиш",
+        /* zh_hans */ "键盘快捷键",
+        /* zh_hant */ "鍵盤快速鍵",
+    ],
+    // ShortcutSelectLine
+    [
+        /* en      */ "Select line",
+        /* de      */ "Zeile auswählen",
+        /* es      */ "Seleccionar línea",
+        /* fr      */ "Sélectionner la ligne",
+        /* it      */ "Seleziona riga",
+        /* ja      */ "行を選択",
+        /* ko      */ "줄 선택",
+        /* pt_br   */ "Selecionar linha",
+        /* ru      */ "Выделить строку",
+        /* zh_hans */ "选择行",
+        /* zh_hant */ "選取行",
+    ],
 ];
 
 static mut S_LANG: LangId = LangId::en;

src/bin/edit/main.rs

@@ -317,6 +317,9 @@ fn draw(ctx: &mut Context, state: &mut State) {
     if state.error_log_count != 0 {
         draw_error_log(ctx, state);
     }
+    if state.wants_shortcuts_list {
+        draw_dialog_shortcuts(ctx, state);
+    }
 
     if let Some(key) = ctx.keyboard_input() {
         // Shortcuts that are not handled as part of the textarea, etc.
@@ -347,7 +350,10 @@ fn draw(ctx: &mut Context, state: &mut State) {
             state.wants_search.focus = true;
         } else if key == vk::F3 {
             search_execute(ctx, state, SearchAction::Search);
-        } else {
+        } else if key == vk:: F1 {
+            state.wants_shortcuts_list = true;
+        } 
+        else {
             return;
         }
 

src/bin/edit/state.rs

@@ -164,6 +164,7 @@ pub struct State {
     pub wants_close: bool,
     pub wants_exit: bool,
     pub wants_goto: bool,
+    pub wants_shortcuts_list: bool,
     pub goto_target: String,
     pub goto_invalid: bool,
 
@@ -209,6 +210,7 @@ impl State {
             wants_indentation_picker: false,
             wants_go_to_file: false,
             wants_about: false,
+            wants_shortcuts_list:false,
             wants_close: false,
             wants_exit: false,
             wants_goto: false,