Set cursor types

README.md

@@ -6,13 +6,6 @@ A TUI IDE.
 
 # TODO
 
-- [ ] Add struct as union of structs that can take input. or similar
-    - then send input to them.
-    - Also background thread will run worker function for whatever struct is selected.
-    - And maybe even a list of active editors etc?
-- [ ] Add ui api for setting cursor types.
-- [ ] Use that api to set cursor for selection/insertion/normal etc properly.
-    - Sorta unrelated but check kutuwm + kitty problem not keeping cursor mode properly.
 - [ ] Add line numbers.
 - [ ] Add bg highlight for current line.
 - [ ] Make function to get selected text. (selection itself is done)

include/ui.h

@@ -46,6 +46,11 @@
 #define CNTRL_ALT 3
 #define SHIFT 4
 
+#define DEFAULT 0
+#define BLOCK 2
+#define UNDERLINE 4
+#define CURSOR 6
+
 enum CellFlags : uint8_t {
   CF_NONE = 0,
   CF_ITALIC = 1 << 0,
@@ -86,7 +91,7 @@ Coord start_screen();
 void end_screen();
 void update(uint32_t row, uint32_t col, const char *utf8, uint32_t fg,
             uint32_t bg, uint8_t flags);
-void set_cursor(int row, int col, int show_cursor_param);
+void set_cursor(int row, int col, int type, bool show_cursor_param);
 void render();
 Coord get_size();
 

src/editor.cc

@@ -2,6 +2,7 @@ extern "C" {
 #include "../libs/libgrapheme/grapheme.h"
 }
 #include "../include/editor.h"
+#include "../include/main.h"
 #include "../include/ts.h"
 #include "../include/utils.h"
 
@@ -197,8 +198,21 @@ void render_editor(Editor *editor) {
     line_index++;
     free(line);
   }
-  if (cursor.row != UINT32_MAX && cursor.col != UINT32_MAX)
-    set_cursor(cursor.row, cursor.col, 1);
+  if (cursor.row != UINT32_MAX && cursor.col != UINT32_MAX) {
+    int type = 0;
+    switch (mode) {
+    case NORMAL:
+      type = BLOCK;
+      break;
+    case INSERT:
+      type = CURSOR;
+      break;
+    case SELECT:
+      type = UNDERLINE;
+      break;
+    }
+    set_cursor(cursor.row, cursor.col, type, true);
+  }
   while (rendered_rows < editor->size.row) {
     for (uint32_t col = 0; col < editor->size.col; col++)
       update(editor->position.row + rendered_rows, editor->position.col + col,

src/editor_ctrl.cc

@@ -42,6 +42,10 @@ void handle_editor_event(Editor *editor, KeyEvent event) {
         editor->cursor = p;
         editor->cursor_preffered = UINT32_MAX;
         editor->selection = p;
+        if (mode == SELECT) {
+          mode = NORMAL;
+          editor->selection_active = false;
+        }
       }
       break;
     case DRAG:
@@ -49,14 +53,17 @@ void handle_editor_event(Editor *editor, KeyEvent event) {
         Coord p = editor_hit_test(editor, event.mouse_x, event.mouse_y);
         editor->cursor = p;
         editor->cursor_preffered = UINT32_MAX;
+        mode = SELECT;
         editor->selection_active = true;
       }
       break;
     case RELEASE:
       if (event.mouse_button == LEFT_BTN)
         if (editor->cursor.row == editor->selection.row &&
-            editor->cursor.col == editor->selection.col)
+            editor->cursor.col == editor->selection.col) {
+          mode = NORMAL;
           editor->selection_active = false;
+        }
       break;
     }
   }
@@ -65,6 +72,9 @@ void handle_editor_event(Editor *editor, KeyEvent event) {
     if (event.key_type == KEY_CHAR && event.len == 1) {
       switch (event.c[0]) {
       case 'a':
+        mode = INSERT;
+        cursor_right(editor, 1);
+        break;
       case 'i':
         mode = INSERT;
         break;
@@ -119,14 +129,16 @@ void handle_editor_event(Editor *editor, KeyEvent event) {
           cursor_right(editor, 1);
         } else if (event.c[0] == 0x1B) {
           mode = NORMAL;
+          cursor_left(editor, 1);
         }
       } else if (event.len > 1) {
         edit_insert(editor, editor->cursor, event.c, event.len);
         cursor_right(editor, 1);
       }
-    }
-    if (event.key_type == KEY_SPECIAL && event.special_key == KEY_DELETE)
+    } else if (event.key_type == KEY_SPECIAL &&
+               event.special_key == KEY_DELETE) {
       edit_erase(editor, editor->cursor, 1);
+    }
     break;
   case SELECT:
     if (event.key_type == KEY_CHAR && event.len == 1) {
@@ -156,6 +168,8 @@ void handle_editor_event(Editor *editor, KeyEvent event) {
 }
 
 Coord editor_hit_test(Editor *editor, uint32_t x, uint32_t y) {
+  if (mode != INSERT)
+    x--;
   uint32_t target_visual_row = y;
   uint32_t visual_row = 0;
   uint32_t line_index = editor->scroll.row;

src/renderer.cc

@@ -2,7 +2,7 @@
 #include "../include/ui.h"
 
 uint32_t rows, cols;
-int show_cursor = 0;
+bool show_cursor = 0;
 std::vector<ScreenCell> screen;
 std::vector<ScreenCell> old_screen;
 std::mutex screen_mutex;
@@ -187,9 +187,10 @@ void render() {
   }
 }
 
-void set_cursor(int row, int col, int show_cursor_param) {
+void set_cursor(int row, int col, int type, bool show_cursor_param) {
   char buf[32];
-  int n = snprintf(buf, sizeof(buf), "\x1b[%d;%dH\x1b[5 q", row + 1, col + 1);
+  int n = snprintf(buf, sizeof(buf), "\x1b[%d;%dH\x1b[%d q", row + 1, col + 1,
+                   type);
   show_cursor = show_cursor_param;
   write(STDOUT_FILENO, buf, n);
 }