diff options
Diffstat (limited to 'buffer.c')
| -rw-r--r-- | buffer.c | 18 |
1 files changed, 16 insertions, 2 deletions
@@ -1196,6 +1196,8 @@ static Status buffer_insert_lines(TextBuffer *buffer, u32 where, u32 number) { // inserts the given text, returning the position of the end of the text BufferPos buffer_insert_text_at_pos(TextBuffer *buffer, BufferPos pos, String32 str) { + if (buffer->view_only) + return pos; if (str.len > U32_MAX) { buffer_seterr(buffer, "Inserting too much text (length: %zu).", str.len); BufferPos ret = {0,0}; @@ -1407,11 +1409,13 @@ static void buffer_delete_lines(TextBuffer *buffer, u32 first_line_idx, u32 nlin } void buffer_delete_chars_at_pos(TextBuffer *buffer, BufferPos pos, i64 nchars_) { + if (buffer->view_only) return; if (nchars_ < 0) { buffer_seterr(buffer, "Deleting negative characters (specifically, " I64_FMT ").", nchars_); return; } if (nchars_ <= 0) return; + if (nchars_ > U32_MAX) nchars_ = U32_MAX; u32 nchars = (u32)nchars_; @@ -1839,6 +1843,10 @@ Status buffer_load_file(TextBuffer *buffer, char const *filename) { buffer->lines_capacity = lines_capacity; buffer->filename = filename_copy; buffer->last_write_time = time_last_modified(buffer->filename); + if (!(fs_path_permission(filename) & FS_PERMISSION_WRITE)) { + // can't write to this file; make the buffer view only. + buffer->view_only = true; + } } } } else { @@ -1908,6 +1916,11 @@ void buffer_new_file(TextBuffer *buffer, char const *filename) { bool buffer_save(TextBuffer *buffer) { Settings const *settings = buffer_settings(buffer); if (!buffer->is_line_buffer && buffer->filename) { + if (buffer->view_only) { + buffer_seterr(buffer, "Can't save view-only file."); + return false; + } + FILE *out = fopen(buffer->filename, "wb"); if (out) { if (settings->auto_add_newline) { @@ -2120,7 +2133,7 @@ void buffer_render(TextBuffer *buffer, Rect r) { V2((float)n_columns_highlighted * char_width, char_height) ); buffer_clip_rect(buffer, &hl_rect); - gl_geometry_rect(hl_rect, colors[COLOR_SELECTION_BG]); + gl_geometry_rect(hl_rect, colors[buffer->view_only ? COLOR_VIEW_ONLY_SELECTION_BG : COLOR_SELECTION_BG]); } index1 = 0; } @@ -2257,7 +2270,8 @@ void buffer_render(TextBuffer *buffer, Rect r) { if (is_on) { if (buffer_clip_rect(buffer, &cursor_rect)) { - gl_geometry_rect(cursor_rect, colors[COLOR_CURSOR]); + // draw cursor + gl_geometry_rect(cursor_rect, colors[buffer->view_only ? COLOR_VIEW_ONLY_CURSOR : COLOR_CURSOR]); } } gl_geometry_draw(); |