transient-mark mode == higlight_mark

--HG--
branch : pmacs2

application.py

@@ -19,6 +19,7 @@ class Application(object):
         # initialize some basic stuff
         self.config             = {}
         self.highlighted_ranges = [] 
+        self.highlight_mark     = False
         self.mini_active        = False
         self.mini_buffer        = None
         self.mini_prompt        = ""
@@ -100,6 +101,8 @@ class Application(object):
             exec("import %s" % name)
             mod = eval(name)
             for mname in dir(mod):
+                if mname.startswith('_'):
+                    continue
                 cls = eval("%s.%s" % (name, mname))
                 if hasattr(cls, '_is_method') and cls._is_method:
                     self.methods[cls._name()] = cls()
@@ -580,13 +583,21 @@ class Application(object):
         if os.path.exists(path):
             try:
                 f = open(path, 'r')
-                #execfile(path)
                 exec(f)
                 f.close()
             except Exception, e:
                 s = traceback.format_exc()
                 self.rcerror = 'There was an error during startup:\n\n%s' % s
 
+    # after actions get handled, do some stuff
+    def post_action_hook(self, act):
+        self.last_action = act.name
+        if self.highlight_mark:
+            if act.name == 'set-mark' or act.metadata.get('is_move'):
+                pass
+            else:
+                self.highlight_mark = False
+        
     # the mighty run-loop!
     def run(self):
         self.done = False
@@ -619,7 +630,7 @@ class Application(object):
                 self.draw()
                 self.need_draw = False
 
-        # gjeiwgjeiw
+        # clean up, clean up
         for b in self.bufferlist.buffers:
             b.close()
 
@@ -780,6 +791,71 @@ class Application(object):
                 x += slot.width
             count += 1
 
+    def highlight_simple_range(self, slot, y1, x1, x2, fg, bg):
+        count    = slot.window.mode.header
+        tx1, tx2 = slot.window.mode.lmargin, slot.width - 1
+        x, y     = slot.window.first.xy()
+        while count < slot.height:
+            if y1 == y and x1 < slot.width + x:
+                sy  = slot.y_offset + count
+                sx1 = x1 - x + slot.window.mode.lmargin
+                sx2 = x2 - x + slot.window.mode.lmargin
+                if x1 <= x:
+                    if x2 < slot.width + x:
+                        self.highlight_chars(sy, tx1, sx2, fg, bg)
+                        break
+                    else:
+                        self.highlight_chars(sy, tx1, tx2, fg, bg)
+                else:
+                    if x2 < slot.width + x:
+                        self.highlight_chars(sy, sx1, sx2, fg, bg)
+                        break
+                    else:
+                        self.highlight_chars(sy, sx1, tx2, fg, bg)
+
+            if x + slot.width > len(slot.window.buffer.lines[y]):
+                x = 0
+                y += 1
+            else:
+                x += slot.width - 1
+            count += 1
+
+    def highlight_complex_range(self, slot, p1, p2, fg, bg):
+        count    = slot.window.mode.header
+        tx1, tx2 = slot.window.mode.lmargin, slot.width - 1
+        x, y     = slot.window.first.xy()
+        while count < slot.height:
+            if p1.y <= y:
+                sy  = slot.y_offset + count
+                if p1.y == y:
+                    if p1.x > slot.width + x:
+                        pass
+                    elif p1.x > x:
+                        self.highlight_chars(sy, p1.x - x + tx1, tx2, fg, bg)
+                    else:
+                        self.highlight_chars(sy, tx1, tx2, fg, bg)
+                elif p2.y > y:
+                    self.highlight_chars(sy, tx1, tx2, fg, bg)
+                elif p2.y == y and p2.x >= x and p2.x < slot.width + x:
+                    if slot.width > p2.x - x:
+                        self.highlight_chars(sy, tx1, p2.x - x + tx1, fg, bg)
+                        break
+                    else:
+                        self.highlight_chars(sy, tx1, tx2, fg, bg)
+
+            if x + slot.width > len(slot.window.buffer.lines[y]):
+                x = 0
+                y += 1
+            else:
+                x += slot.width - 1
+            count += 1
+
+    def highlight_range(self, slot, p1, p2, fg, bg):
+        if p1.y == p2.y:
+            return self.highlight_simple_range(slot, p1.y, p1.x, p2.x, fg, bg)
+        else:
+            return self.highlight_complex_range(slot, p1, p2, fg, bg)
+
     def draw_slot(self, i):
         assert self.active_slot < len(self.bufferlist.slots), \
             "strange: %d < %d" % (self.active_slot, len(self.bufferlist.slots))
@@ -807,24 +883,27 @@ class Application(object):
         for hr in self.highlighted_ranges:
             (high_w, p1, p2, fg, bg) = hr
             if w is high_w and p2 >= w.first and p1 <= w.last:
-                count = w.mode.header
+                #raise Exception(repr((slot, p1, p2, fg, bg)))
-                x, y = w.first.xy()
+                self.highlight_range(slot, p1, p2, fg, bg)
-                px = p1.x
+
-                while count < slot.height:
+        #self.highlight_range(slot, Point(13, 8), Point(29, 8), 'black', 'magenta')
-                    if p1.y == y and px >= x and px - x < slot.width:
+        if not self.highlighted_ranges and self.highlight_mark:
-                        sy, sx = slot.y_offset + count, px - x + w.mode.lmargin
+            fg, bg = 'black', 'cyan'
-                        if slot.width > p2.x - x:
+            cursor = w.logical_cursor()
-                            self.highlight_chars(sy, sx, p2.x-x, fg, bg)
+            mark   = w.mark
-                            break
+            if mark is None:
-                        else:
+                return
-                            self.highlight_chars(sy, sx, slot.width - 1, fg, bg)
+
-                            px += slot.width - px + x - 1
+            if mark <= cursor:
-                    if x + slot.width > len(w.buffer.lines[y]):
+                p1, p2 = mark, cursor
-                        x = 0
+            else:
-                        y += 1
+                p1, p2 = cursor, mark
-                    else:
+
-                        x += slot.width - 1
+            if p1 < w.first: p1 = w.first
-                    count += 1
+            if p2 > w.last: p2 = w.last
+            #raise Exception("blargh")
+            self.highlight_range(slot, p1, p2, fg, bg)
+            #raise Exception("p1=%r  p2=%r  fg=%r  bg=%r" % (p1, p2, fg, bg))
 
         if w.margins_visible:
             shade = util.get_margin_color(w, 'blue')
@@ -956,10 +1035,7 @@ def run_app(stdscr, buffers, **kwargs):
     a = Application(stdscr, buffers, **kwargs)
     metax = a.methods['meta-x']
     for cmd in kwargs.get('init_cmds', []):
-        #act = a.methods[name]
-        #act.execute(a.active_window())
         metax.execute(a.active_window(), method=cmd)
-        #a.last_action = act.name
     a.run()
     return 0
 

method/__init__.py

@@ -64,6 +64,7 @@ class Method(object):
     _is_method = True
     args       = []
     help       = ""
+    metadata   = {}
     def __init__(self):
         self.name = self._name()
         if self.__doc__:
@@ -497,7 +498,11 @@ class CenterView(Method):
 class SetMark(Method):
     '''Set the mark to the current cursor location'''
     def _execute(self, w, **vargs):
-        w.set_mark()
+        if w.application.last_action == self.name:
+            w.application.highlight_mark = True
+            w.set_error("Highlighting enabled: %r" % w.application.highlight_mark)
+        else:
+            w.set_mark()
 class SwitchMark(Method):
     '''Switch the mark and the cursor locations'''
     def _execute(self, w, **vargs):

method/move.py

@@ -6,63 +6,67 @@ from point import Point
 
 from method import Method, Argument
 
-class StartOfLine(Method):
+class _Move(Method):
+    '''Abstract base move action'''
+    metadata = {'is_move': True}
+
+class StartOfLine(_Move):
     '''Move the cursor to the start of the current line'''
     def _execute(self, w, **vargs):
         w.start_of_line()
-class EndOfLine(Method):
+class EndOfLine(_Move):
     '''Move the cursor to the end of the current line'''
     def _execute(self, w, **vargs):
         w.end_of_line()
 
-class Forward(Method):
+class Forward(_Move):
     '''Move the cursor right one character'''
     def _execute(self, w, **vargs):
         w.forward()
-class Backward(Method):
+class Backward(_Move):
     '''Move the cursor left one character'''
     def _execute(self, w, **vargs):
         w.backward()
 
-class NextLine(Method):
+class NextLine(_Move):
     '''Move the cursor down one line'''
     def _execute(self, w, **vargs):
         w.next_line()
-class PreviousLine(Method):
+class PreviousLine(_Move):
     '''Move the cursor up one line'''
     def _execute(self, w, **vargs):
         w.previous_line()
 
-class PageUp(Method):
+class PageUp(_Move):
     '''Move the cursor up one page'''
     def _execute(self, w, **vargs):
         w.page_up()
-class PageDown(Method):
+class PageDown(_Move):
     '''Move the cursor down one page'''
     def _execute(self, w, **vargs):
         w.page_down()
 
-class GotoBeginning(Method):
+class GotoBeginning(_Move):
     '''Move the cursor to the beginning of the buffer'''
     def _execute(self, w, **vargs):
         w.set_mark()
         w.goto_beginning()
-class GotoEnd(Method):
+class GotoEnd(_Move):
     '''Move the cursor to the end of the buffer'''
     def _execute(self, w, **vargs):
         w.set_mark()
         w.goto_end()
 
-class RightWord(Method):
+class RightWord(_Move):
     '''Move the cursor to the start of the word to the right'''
     def _execute(self, w, **vargs):
         w.right_word()
-class LeftWord(Method):
+class LeftWord(_Move):
     '''Move the cursor to the start of the word to the left'''
     def _execute(self, w, **vargs):
         w.left_word()
 
-class NextSection(Method):
+class NextSection(_Move):
     '''Move the cursor to the next section'''
     def _execute(self, w, **vargs):
         cursor = w.logical_cursor()
@@ -74,7 +78,7 @@ class NextSection(Method):
                 break
             seen_null_line = regex.whitespace.match(w.buffer.lines[i])
             i += 1
-class PreviousSection(Method):
+class PreviousSection(_Move):
     '''Move the cursor to the previous section'''
     def _execute(self, w, **vargs):
         cursor = w.logical_cursor()
@@ -87,19 +91,19 @@ class PreviousSection(Method):
             seen_null_line = regex.whitespace.match(w.buffer.lines[i])
             i -= 1
 
-class GotoChar(Method):
+class GotoChar(_Move):
     '''Jump to the specified character'''
     args = [Argument("charno", type=type(0), prompt="Goto char: ")]
     def _execute(self, w, **vargs):
         w.goto_char(vargs["charno"])
 
-class ForwardChars(Method):
+class ForwardChars(_Move):
     '''Move forward the specified number of characters'''
     args = [Argument("charno", type=type(0), prompt="Forward chars: ")]
     def _execute(self, w, **vargs):
         w.forward_chars(vargs["charno"])
 
-class GotoLine(Method):
+class GotoLine(_Move):
     '''Jump to the specified line number'''
     args = [Argument("lineno", type=type(0), prompt="Goto line: ")]
     def _execute(self, w, **vargs):
@@ -112,7 +116,7 @@ class GotoLine(Method):
             n = 1
         w.goto_line(n)
 
-class ForwardLines(Method):
+class ForwardLines(_Move):
     '''Move forward the specified number of lines'''
     args = [Argument("lineno", type=type(0), prompt="Forward lines: ")]
     def _execute(self, w, **vargs):

mode/__init__.py

@@ -449,7 +449,8 @@ class Fundamental(Handler):
                 return
             else:
                 act.execute(self.window)
-                self.window.application.last_action = act.name
+                self.window.application.post_action_hook(act)
+                #self.window.application.last_action = act.name
         except ActionError, e:
             #XYZ: HACK--should fix
             if t in ('C-]', 'C-g'):