version 0.2.3

Fixes #61

kitty/boss.py

@@ -14,6 +14,7 @@ from time import monotonic
 from queue import Queue, Empty
 from gettext import gettext as _
 
+from .config import MINIMUM_FONT_SIZE
 from .constants import (
     viewport_size, set_boss, wakeup, cell_size, MODIFIER_KEYS,
     main_thread, mouse_button_pressed, mouse_cursor_pos
@@ -86,6 +87,7 @@ class Boss(Thread):
         self.pending_ui_thread_calls = Queue()
         self.write_dispatch_map = {}
         set_boss(self)
+        self.current_font_size = opts.font_size
         cell_size.width, cell_size.height = set_font_family(opts)
         self.opts, self.args = opts, args
         self.glfw_window = glfw_window
@@ -228,6 +230,28 @@ class Boss(Thread):
         self.pending_resize = False
         glfw_post_empty_event()
 
+    def increase_font_size(self):
+        self.change_font_size(min(self.opts.font_size * 5, self.current_font_size + self.opts.font_size_delta))
+
+    def decrease_font_size(self):
+        self.change_font_size(max(MINIMUM_FONT_SIZE, self.current_font_size - self.opts.font_size_delta))
+
+    def restore_font_size(self):
+        self.change_font_size(self.opts.font_size)
+
+    def change_font_size(self, new_size):
+        if new_size == self.current_font_size:
+            return
+        self.current_font_size = new_size
+        cell_size.width, cell_size.height = set_font_family(
+            self.opts, override_font_size=self.current_font_size)
+        self.sprites.do_layout(cell_size.width, cell_size.height)
+        self.queue_action(self.resize_windows_after_font_size_change)
+
+    def resize_windows_after_font_size_change(self):
+        self.tab_manager.resize()
+        glfw_post_empty_event()
+
     def tabbar_visibility_changed(self):
         self.tab_manager.resize(only_tabs=True)
         glfw_post_empty_event()
@@ -340,7 +364,7 @@ class Boss(Thread):
 
     @callback
     def on_mouse_move(self, window, xpos, ypos):
-        mouse_cursor_pos[:2] = int(xpos * viewport_size.x_ratio), int(ypos * viewport_size.y_ratio)
+        mouse_cursor_pos[:2] = xpos, ypos = int(xpos * viewport_size.x_ratio), int(ypos * viewport_size.y_ratio)
         self.show_mouse_cursor()
         w = self.window_for_pos(xpos, ypos)
         if w is not None:

kitty/child.py

@@ -10,6 +10,7 @@ import signal
 from threading import Thread
 
 from .constants import terminfo_dir
+import kitty.fast_data_types as fast_data_types
 
 
 def remove_cloexec(fd):
@@ -33,6 +34,7 @@ class Child:
         self.forked = True
         master, slave = os.openpty()  # Note that master and slave are in blocking mode
         remove_cloexec(slave)
+        self.set_iutf8(fd=master)
         stdin, self.stdin = self.stdin, None
         if stdin is not None:
             stdin_read_fd, stdin_write_fd = os.pipe()
@@ -79,6 +81,16 @@ class Child:
         if self.child_fd is not None:
             fcntl.ioctl(self.child_fd, termios.TIOCSWINSZ, struct.pack('4H', h, w, ww, wh))
 
+    def set_iutf8(self, on=True, fd=None):
+        fd = fd or self.child_fd
+        if fd is not None and hasattr(fast_data_types, 'IUTF8'):
+            attrs = termios.tcgetattr(fd)
+            if on:
+                attrs[0] |= fast_data_types.IUTF8
+            else:
+                attrs[0] &= ~fast_data_types.IUTF8
+            termios.tcsetattr(fd, termios.TCSANOW, attrs)
+
     def hangup(self):
         if self.pid is not None:
             pid, self.pid = self.pid, None

kitty/client.py

@@ -19,10 +19,30 @@ def write(x):
     sys.stdout.flush()
 
 
+def set_title(*args):
+    pass
+
+
+def set_icon(*args):
+    pass
+
+
+def screen_bell():
+    pass
+
+
 def screen_cursor_position(y, x):
     write(CSI + '%s;%sH' % (y, x))
 
 
+def screen_cursor_forward(amt):
+    write(CSI + '%sC' % amt)
+
+
+def screen_cursor_back1(amt):
+    write(CSI + '%sD' % amt)
+
+
 def screen_designate_charset(which, to):
     which = '()'[int(which)]
     to = chr(int(to))
@@ -57,6 +77,10 @@ def screen_erase_in_display(how, private):
     write(CSI + ('?' if private else '') + str(how) + 'J')
 
 
+def screen_erase_in_line(how, private):
+    write(CSI + ('?' if private else '') + str(how) + 'K')
+
+
 def screen_cursor_up2(count):
     write(CSI + '%dA' % count)
 
@@ -65,6 +89,10 @@ def screen_carriage_return():
     write('\r')
 
 
+def screen_linefeed():
+    write('\n')
+
+
 def screen_backspace():
     write('\x08')
 
@@ -77,8 +105,8 @@ def replay(raw):
     for line in raw.splitlines():
         if line.strip():
             cmd, rest = line.partition(' ')[::2]
-            if cmd == 'draw':
-                draw(rest)
+            if cmd in {'draw', 'set_title', 'set_icon'}:
+                globals()[cmd](rest)
             else:
                 rest = map(int, rest.split()) if rest else ()
                 globals()[cmd](*rest)

kitty/config.py

@@ -17,10 +17,11 @@ from .layout import all_layouts
 from .utils import safe_print, to_color
 
 key_pat = re.compile(r'([a-zA-Z][a-zA-Z0-9_-]*)\s+(.+)$')
+MINIMUM_FONT_SIZE = 6
 
 
 def to_font_size(x):
-    return max(6, float(x))
+    return max(MINIMUM_FONT_SIZE, float(x))
 
 
 cshapes = {
@@ -153,6 +154,7 @@ type_map = {
     'scrollback_pager': shlex.split,
     'scrollback_in_new_tab': to_bool,
     'font_size': to_font_size,
+    'font_size_delta': float,
     'cursor_shape': to_cursor_shape,
     'cursor_opacity': to_opacity,
     'open_url_modifiers': to_open_url_modifiers,

kitty/constants.py

@@ -15,7 +15,7 @@ from .fast_data_types import (
     GLFW_KEY_LEFT_SUPER, GLFW_KEY_RIGHT_SUPER)
 
 appname = 'kitty'
-version = (0, 2, 1)
+version = (0, 2, 3)
 str_version = '.'.join(map(str, version))
 _plat = sys.platform.lower()
 isosx = 'darwin' in _plat

kitty/data-types.c

@@ -56,6 +56,8 @@ static struct PyModuleDef module = {
    .m_methods = module_methods
 };
 
+#include <termios.h>
+
 PyMODINIT_FUNC
 PyInit_fast_data_types(void) {
     PyObject *m;
@@ -105,6 +107,9 @@ PyInit_fast_data_types(void) {
         PyModule_AddIntMacro(m, NORMAL_PROTOCOL);
         PyModule_AddIntMacro(m, URXVT_PROTOCOL);
         PyModule_AddIntMacro(m, UTF8_PROTOCOL);
+#ifdef IUTF8
+        PyModule_AddIntMacro(m, IUTF8);
+#endif
     }
 
     return m;

kitty/data-types.h

@@ -253,7 +253,7 @@ PyTypeObject ScreenModes_Type;
 #define SAVEPOINTS_SZ 256
 
 typedef struct {
-    uint32_t utf8_state, *g0_charset, *g1_charset, *g_charset;
+    uint32_t utf8_state, utf8_codepoint, *g0_charset, *g1_charset, *g_charset;
     bool use_latin1;
     Cursor cursor;
     bool mDECOM, mDECAWM, mDECSCNM;
@@ -274,7 +274,7 @@ typedef struct {
     PyObject_HEAD
 
     unsigned int columns, lines, margin_top, margin_bottom, charset;
-    uint32_t utf8_state, *g0_charset, *g1_charset, *g_charset;
+    uint32_t utf8_state, utf8_codepoint, *g0_charset, *g1_charset, *g_charset;
     bool use_latin1;
     Cursor *cursor;
     SavepointBuffer main_savepoints, alt_savepoints;
@@ -396,6 +396,7 @@ void screen_erase_characters(Screen *self, unsigned int count);
 void screen_set_margins(Screen *self, unsigned int top, unsigned int bottom);
 void screen_change_charset(Screen *, uint32_t to);
 void screen_designate_charset(Screen *, uint32_t which, uint32_t as);
+void screen_use_latin1(Screen *, bool);
 void set_title(Screen *self, PyObject*);
 void set_icon(Screen *self, PyObject*);
 void set_dynamic_color(Screen *self, unsigned int code, PyObject*);

kitty/fonts/core_text.py

@@ -19,7 +19,7 @@ def install_symbol_map(val, font_size, dpi):
         symbol_map[ch] = family_map[family]
 
 
-def set_font_family(opts, ignore_dpi_failure=False):
+def set_font_family(opts, override_font_size=None, ignore_dpi_failure=False):
     global cell_width, cell_height, baseline, CellTexture, WideCellTexture, underline_thickness, underline_position
     try:
         dpi = get_logical_dpi()
@@ -37,11 +37,12 @@ def set_font_family(opts, ignore_dpi_failure=False):
         if ans == 'auto' and (bold or italic):
             ans = get_family(False, False)
         return ans
+    font_size = override_font_size or opts.font_size
 
     for bold in (False, True):
         for italic in (False, True):
-            main_font[(bold, italic)] = Face(get_family(bold, italic), bold, italic, True, opts.font_size, dpi)
-    install_symbol_map(opts.symbol_map, opts.font_size, dpi)
+            main_font[(bold, italic)] = Face(get_family(bold, italic), bold, italic, True, font_size, dpi)
+    install_symbol_map(opts.symbol_map, font_size, dpi)
     mf = main_font[(False, False)]
     cell_width, cell_height = mf.cell_size()
     CellTexture = ctypes.c_ubyte * (cell_width * cell_height)

kitty/fonts/freetype.py

@@ -71,10 +71,10 @@ def font_units_to_pixels(x, units_per_em, size_in_pts, dpi):
     return ceil_int(x * ((size_in_pts * dpi) / (72 * units_per_em)))
 
 
-def set_font_family(opts):
+def set_font_family(opts, override_font_size=None):
     global current_font_family, current_font_family_name, cff_size, cell_width, cell_height, CharTexture, baseline
     global underline_position, underline_thickness
-    size_in_pts = opts.font_size
+    size_in_pts = override_font_size or opts.font_size
     current_font_family = get_font_files(opts)
     current_font_family_name = opts.font_family
     dpi = get_logical_dpi()

kitty/kitty.conf

@@ -15,6 +15,10 @@ bold_italic_font auto
 # Font size (in pts)
 font_size        11.0
 
+# The amount the font size is changed by (in pts) when increasing/decreasing
+# the font size in a running terminal.
+font_size_delta 2
+
 # The foreground color
 foreground       #dddddd
 
@@ -215,6 +219,10 @@ map ctrl+shift+l        next_layout
 map ctrl+shift+.        move_tab_forward
 map ctrl+shift+,        move_tab_backward
 
+# Miscellaneous
+map ctrl+shift+equal    increase_font_size
+map ctrl+shift+minus    decrease_font_size
+map ctrl+shift+backspace restore_font_size
 
 # Symbol mapping (special font for specified unicode code points). Map the
 # specified unicode codepoints to a particular font. Useful if you need special

kitty/main.py

@@ -98,6 +98,11 @@ def option_parser():
         default=None,
         help=_('Replay previously dumped commands')
     )
+    a(
+        '--dump-bytes',
+        help=_('Path to file in which to store the raw bytes received from the'
+               ' child process. Useful for debugging.')
+    )
     a(
         '--debug-gl',
         action='store_true',

kitty/parser.c

@@ -225,10 +225,12 @@ handle_esc_mode_char(Screen *screen, uint32_t ch, PyObject DUMP_UNUSED *dump_cal
                     switch(ch) {
                         case '@':
                             REPORT_COMMAND(screen_use_latin1, 1);
-                            screen->use_latin1 = true; screen->utf8_state = 0; break;
+                            screen_use_latin1(screen, true);
+                            break;
                         case 'G':
                             REPORT_COMMAND(screen_use_latin1, 0);
-                            screen->use_latin1 = false; screen->utf8_state = 0; break;
+                            screen_use_latin1(screen, false);
+                            break;
                         default:
                             REPORT_ERROR("Unhandled Esc %% code: 0x%x", ch);  break;
                     }
@@ -519,16 +521,16 @@ accumulate_osc(Screen *screen, uint32_t ch, PyObject DUMP_UNUSED *dump_callback)
     switch(ch) {
         case ST:
             return true;
-        case ESC_ST:
-            if (screen->parser_buf_pos > 0 && screen->parser_buf[screen->parser_buf_pos - 1] == ESC) {
-                screen->parser_buf_pos--;
-                return true;
-            }
         case BEL:
             return true;
         case NUL:
         case DEL:
             break;
+        case ESC_ST:
+            if (screen->parser_buf_pos > 0 && screen->parser_buf[screen->parser_buf_pos - 1] == ESC) {
+                screen->parser_buf_pos--;
+                return true;
+            }
         default:
             if (screen->parser_buf_pos >= PARSER_BUF_SZ - 1) {
                 REPORT_ERROR("OSC sequence too long, truncating.");
@@ -688,17 +690,17 @@ dispatch_unicode_char(Screen *screen, uint32_t codepoint, PyObject DUMP_UNUSED *
 
 static inline void 
 _parse_bytes(Screen *screen, uint8_t *buf, Py_ssize_t len, PyObject DUMP_UNUSED *dump_callback) {
-    uint32_t prev = screen->utf8_state, codepoint = 0;
+    uint32_t prev = screen->utf8_state;
     for (unsigned int i = 0; i < len; i++) {
         if (screen->use_latin1) dispatch_unicode_char(screen, latin1_charset[buf[i]], dump_callback);
         else {
-            switch (decode_utf8(&screen->utf8_state, &codepoint, buf[i])) {
+            switch (decode_utf8(&screen->utf8_state, &screen->utf8_codepoint, buf[i])) {
                 case UTF8_ACCEPT:
-                    dispatch_unicode_char(screen, codepoint, dump_callback);
+                    dispatch_unicode_char(screen, screen->utf8_codepoint, dump_callback);
                     break;
                 case UTF8_REJECT:
                     screen->utf8_state = UTF8_ACCEPT;
-                    if (prev != UTF8_ACCEPT) i--;
+                    if (prev != UTF8_ACCEPT && i > 0) i--;
                     break;
             }
             prev = screen->utf8_state;
@@ -753,6 +755,11 @@ FNAME(read_bytes)(PyObject UNUSED *self, PyObject *args) {
         /* PyObject_Print(Py_BuildValue("y#", screen->read_buf, len), stderr, 0); */
         break;
     }
+#ifdef DUMP_COMMANDS
+    if (len > 0) {
+        Py_XDECREF(PyObject_CallFunction(dump_callback, "sy#", "bytes", screen->read_buf, len)); PyErr_Clear();
+    }
+#endif
     _parse_bytes(screen, screen->read_buf, len, dump_callback);
     if(len > 0) { Py_RETURN_TRUE; }
     Py_RETURN_FALSE;

kitty/screen.c

@@ -29,6 +29,7 @@ init_tabstops(bool *tabstops, index_type count) {
         self->g1_charset = self->g0_charset; \
         self->g_charset = self->g0_charset; \
         self->utf8_state = 0; \
+        self->utf8_codepoint = 0; \
         self->use_latin1 = false; 
 
 static PyObject*
@@ -638,6 +639,7 @@ savepoints_pop(SavepointBuffer *self) {
 
 #define COPY_CHARSETS(self, sp) \
     sp->utf8_state = self->utf8_state; \
+    sp->utf8_codepoint = self->utf8_codepoint; \
     sp->g0_charset = self->g0_charset; \
     sp->g1_charset = self->g1_charset; \
     sp->g_charset = self->g_charset; \
@@ -855,6 +857,14 @@ void screen_erase_characters(Screen *self, unsigned int count) {
 
 // Device control {{{
 
+void
+screen_use_latin1(Screen *self, bool on) {
+    self->use_latin1 = on; self->utf8_state = 0; self->utf8_codepoint = 0; 
+    PyObject_CallMethod(self->callbacks, "use_utf8", "O", on ? Py_False : Py_True);
+    if (PyErr_Occurred()) PyErr_Print();
+    PyErr_Clear(); 
+}
+
 void 
 screen_bell(Screen UNUSED *self) {  
     PyObject_CallMethod(self->callbacks, "bell", NULL);

kitty/window.py

@@ -39,7 +39,9 @@ class Window:
         self.child_fd = child.child_fd
         self.start_visual_bell_at = None
         self.screen = Screen(self, 24, 80, opts.scrollback_lines)
-        self.read_bytes = partial(read_bytes_dump, self.dump_commands) if args.dump_commands else read_bytes
+        self.read_bytes = partial(read_bytes_dump, self.dump_commands) if args.dump_commands or args.dump_bytes else read_bytes
+        if args.dump_bytes:
+            self.dump_bytes_to = open(args.dump_bytes, 'ab')
         self.draw_dump_buf = []
         self.write_buf = memoryview(b'')
         self.char_grid = CharGrid(self.screen, opts)
@@ -118,6 +120,9 @@ class Window:
             self.start_visual_bell_at = monotonic()
             glfw_post_empty_event()
 
+    def use_utf8(self, on):
+        self.child.set_iutf8(on)
+
     def update_screen(self):
         self.char_grid.update_cell_data()
         glfw_post_empty_event()
@@ -347,6 +352,9 @@ class Window:
                         self.draw_dump_buf = []
                 else:
                     self.draw_dump_buf.append(a[1])
+            elif a[0] == 'bytes':
+                self.dump_bytes_to.write(a[1])
+                self.dump_bytes_to.flush()
             else:
                 if self.draw_dump_buf:
                     safe_print('draw', ''.join(self.draw_dump_buf))

kitty_tests/__init__.py

@@ -33,10 +33,14 @@ class Callbacks:
     def buf_toggled(self, is_alt):
         self.is_alt = is_alt
 
+    def use_utf8(self, on):
+        self.iutf8 = on
+
     def clear(self):
         self.wtcbuf = b''
         self.iconbuf = self.titlebuf = self.colorbuf = self.qbuf = self.ctbuf = ''
         self.is_alt = False
+        self.iutf8 = True
 
 
 def filled_line_buf(ynum=5, xnum=5, cursor=Cursor()):

kitty_tests/parser.py

@@ -72,11 +72,17 @@ class TestParser(BaseTest):
         self.ae(str(s.line(0)), '123  ')
 
     def test_charsets(self):
+        s = self.create_screen()
+        pb = partial(self.parse_bytes_dump, s)
+        pb(b'\xc3')
+        pb(b'\xa1', ('draw', b'\xc3\xa1'.decode('utf-8')))
         s = self.create_screen()
         pb = partial(self.parse_bytes_dump, s)
         pb('\033)0\x0e/_', ('screen_designate_charset', 1, ord('0')), ('screen_change_charset', 1), '/_')
         self.ae(str(s.line(0)), '/\xa0   ')
-        pb('\033%G_', ('screen_use_latin1', 0), '_')
+        self.assertTrue(s.callbacks.iutf8)
+        pb('\033%@_', ('screen_use_latin1', 1), '_')
+        self.assertFalse(s.callbacks.iutf8)
         s = self.create_screen()
         pb = partial(self.parse_bytes_dump, s)
         pb('\033(0/_', ('screen_designate_charset', 0, ord('0')), '/_')
@@ -156,9 +162,9 @@ class TestParser(BaseTest):
         s = self.create_screen()
         pb = partial(self.parse_bytes_dump, s)
         c = s.callbacks
-        pb('a\033]2;xyz\x9cbcde', 'a', ('set_title', 'xyz'), 'bcde')
+        pb('a\033]2;x\\ryz\x9cbcde', 'a', ('set_title', 'x\\ryz'), 'bcde')
         self.ae(str(s.line(0)), 'abcde')
-        self.ae(c.titlebuf, 'xyz')
+        self.ae(c.titlebuf, 'x\\ryz')
         c.clear()
         pb('\033]\x07', ('set_title', ''), ('set_icon', ''))
         self.ae(c.titlebuf, ''), self.ae(c.iconbuf, '')
@@ -181,4 +187,4 @@ class TestParser(BaseTest):
         pb = partial(self.parse_bytes_dump, s)
         for prefix in '\033_', '\033^', '\u009e', '\u009f':
             for suffix in '\u009c', '\033\\':
-                pb('a{}+++{}bcde'.format(prefix, suffix), 'abcde')
+                pb('a{}+\\++{}bcde'.format(prefix, suffix), 'abcde')