replace buffer in panel

src/core/core.odin

@@ -148,18 +148,42 @@ new_buffer_virtual :: proc(state: ^State) -> (id: int, buffer: ^FileBuffer, ok:
     return util.append(&state.buffers, new_virtual_file_buffer(context.allocator))
 }
 
-new_buffer_file :: proc(state: ^State, file_path: string) -> (id: int, buffer: ^FileBuffer, ok: bool) {
-    new_buffer, err := new_file_buffer(context.allocator, file_path, state.directory)
+new_buffer_file :: proc(state: ^State, file_path: string, line: int = 0, col: int = 0) -> (id: int, buffer: ^FileBuffer, ok: bool) {
+    new_buffer, err := make_file_buffer(context.allocator, file_path, state.directory)
     if err.type != .None {
         ok = false
         return
     }
 
+    move_cursor_to_location(&new_buffer, line, col)
+
     return util.append(&state.buffers, new_buffer)
 }
 
 new_buffer :: proc{new_buffer_file, new_buffer_virtual}
 
+open_buffer_file :: proc(state: ^State, file_path: string, line: int = 0, col: int = 0) {
+    next_id := 0
+    for {
+        if panel, ok := util.get(&state.panels, next_id).?; ok {
+            if type, ok := &panel.type.(FileBufferPanel); ok {
+                buffer_id, _, ok := new_buffer_file(state, file_path, line, col)
+                if ok {
+                    type.buffer_id = buffer_id
+                    state.current_panel = panel.id
+                }
+
+                break
+            } else {
+                next_id := util.get_next(&state.panels, next_id)
+                continue
+            }
+        }
+
+        break
+    }
+}
+
 get_buffer :: proc(state: ^State, buffer_id: int) -> Maybe(^FileBuffer) {
     return util.get(&state.buffers, buffer_id)
 }

src/core/file_buffer.odin

@@ -752,7 +752,7 @@ new_virtual_file_buffer :: proc(allocator := context.allocator) -> FileBuffer {
     return buffer;
 }
 
-new_file_buffer :: proc(allocator: mem.Allocator, file_path: string, base_dir: string = "") -> (FileBuffer, Error) {
+make_file_buffer :: proc(allocator: mem.Allocator, file_path: string, base_dir: string = "") -> (FileBuffer, Error) {
     context.allocator = allocator;
 
     fmt.eprintln("attempting to open", file_path);
@@ -996,7 +996,7 @@ update_file_buffer_scroll :: proc(buffer: ^FileBuffer, cursor: Maybe(^Cursor) =
         cursor = &buffer.history.cursor;
     }
 
-    if buffer.glyphs.height < 5 {
+    if buffer.glyphs.height <= 5 {
         buffer.top_line = cursor.?.line
     } else if cursor.?.line > (buffer.top_line + buffer.glyphs.height - 5) {
         buffer.top_line = math.max(cursor.?.line - buffer.glyphs.height + 5, 0);

src/panels/file_buffer.odin

@@ -65,11 +65,7 @@ make_file_buffer_panel :: proc(file_path: string, line: int = 0, col: int = 0) -
                 }
             } else {
                 if buffer_id, buffer, ok := core.new_buffer(state, panel_state.file_path); ok {
-                    buffer.history.cursor.line = panel_state.line
-                    buffer.history.cursor.col = panel_state.col
-                    buffer.top_line = buffer.history.cursor.line
-                    core.update_file_buffer_index_from_cursor(buffer)
-
+                    core.move_cursor_to_location(buffer, panel_state.line, panel_state.col)
                     panel_state.buffer_id = buffer_id
                 } else {
                     log.error("failed to create buffer")

src/panels/grep.odin

@@ -87,13 +87,8 @@ make_grep_panel :: proc() -> core.Panel {
                     if panel_state.query_results != nil {
                         selected_result := &panel_state.query_results[panel_state.selected_result]
 
-                        if panel_id, ok := open(state, make_file_buffer_panel(selected_result.file_path, selected_result.line, selected_result.col)); ok {
+                        core.open_buffer_file(state, selected_result.file_path, selected_result.line, selected_result.col)
                         close(state, this_panel.id)
-
-                            state.current_panel = panel_id
-                        } else {
-                            log.error("failed to open file buffer in new panel")
-                        }
                     }
                 }
             }, "Open File");

src/pkg/grep_lib/src/lib.rs

@@ -298,7 +298,7 @@ extern "C" fn grep_buffer(
 #[unsafe(no_mangle)]
 extern "C" fn free_grep_results(results: GrepResults) {
     unsafe {
-        let mut array = std::slice::from_raw_parts_mut(
+        let array = std::slice::from_raw_parts_mut(
             results.results as *mut GrepResult,
             results.len as usize,
         );