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Diffstat (limited to 'examples/pygtk-demo/demos/textview.py')
| -rw-r--r-- | examples/pygtk-demo/demos/textview.py | 498 |
1 files changed, 0 insertions, 498 deletions
diff --git a/examples/pygtk-demo/demos/textview.py b/examples/pygtk-demo/demos/textview.py deleted file mode 100644 index 44166616..00000000 --- a/examples/pygtk-demo/demos/textview.py +++ /dev/null @@ -1,498 +0,0 @@ -#!/usr/bin/env python -"""Text Widget/TextView - -The GtkTextView widget displays a GtkTextBuffer. One GtkTextBuffer can be displayed -by multiple GtkTextViews. This demo has two views displaying a single buffer, and -shows off the widget's text formatting features.""" -# pygtk version: Maik Hertha <maik.hertha@berlin.de> - -import os -import sys - -import gobject -import gtk - -gray50_width = 2 -gray50_height = 2 -gray50_bits = '\x02\x01' -GTKLOGO_IMAGE = os.path.join(os.path.dirname(__file__), - 'images', 'gtk-logo-rgb.gif') -FLOPPYBUDDY_IMAGE = os.path.join(os.path.dirname(__file__), - 'images', 'floppybuddy.gif') - -class TextViewDemo(gtk.Window): - def __init__(self, parent=None): - # Create the toplevel window - gtk.Window.__init__(self) - try: - self.set_screen(parent.get_screen()) - except AttributeError: - self.connect('destroy', lambda *w: gtk.main_quit()) - - self.set_title(self.__class__.__name__) - self.set_default_size(450, 450) - self.set_border_width(0) - - vpaned = gtk.VPaned() - vpaned.set_border_width(5) - self.add(vpaned) - - # For convenience, we just use the autocreated buffer from - # the first text view; you could also create the buffer - # by itself with gtk.text_buffer_new(), then later create - # a view widget. - - view1 = gtk.TextView(); - buffer_1 = view1.get_buffer() - view2 = gtk.TextView(buffer_1) - - sw = gtk.ScrolledWindow() - sw.set_shadow_type(gtk.SHADOW_ETCHED_IN) - sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC) - - vpaned.add1(sw) - - sw.add(view1) - - sw = gtk.ScrolledWindow() - sw.set_shadow_type(gtk.SHADOW_ETCHED_IN) - sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC) - - vpaned.add2(sw) - - sw.add(view2) - - self.create_tags(buffer_1) - self.insert_text(buffer_1) - - self.attach_widgets(view1) - self.attach_widgets(view2) - self.win = None - self.show_all() - - def create_tags(self, text_buffer): - ''' - Create a bunch of tags. Note that it's also possible to - create tags with gtk.text_tag_new() then add them to the - tag table for the buffer, text_buffer.create_tag() is - just a convenience function. Also note that you don't have - to give tags a name; pass None for the name to create an - anonymous tag. - - In any real app, another useful optimization would be to create - a GtkTextTagTable in advance, and reuse the same tag table for - all the buffers with the same tag set, instead of creating - new copies of the same tags for every buffer. - - Tags are assigned default priorities in order of addition to the - tag table. That is, tags created later that affect the same text - property affected by an earlier tag will override the earlier - tag. You can modify tag priorities with - gtk.text_tag_set_priority(). - ''' - - import pango - text_buffer.create_tag("heading", - weight=pango.WEIGHT_BOLD, - size=15 * pango.SCALE) - - text_buffer.create_tag("italic", style=pango.STYLE_ITALIC) - - text_buffer.create_tag("bold", weight=pango.WEIGHT_BOLD) - - # points times the pango.SCALE factor - text_buffer.create_tag("big", size=20 * pango.SCALE) - - text_buffer.create_tag("xx-small", scale=pango.SCALE_XX_SMALL) - - text_buffer.create_tag("x-large", scale=pango.SCALE_X_LARGE) - - text_buffer.create_tag("monospace", family="monospace") - - text_buffer.create_tag("blue_foreground", foreground="blue") - - text_buffer.create_tag("red_background", background="red") - - stipple = gtk.gdk.bitmap_create_from_data(None, - gray50_bits, gray50_width, gray50_height) - - text_buffer.create_tag("background_stipple", background_stipple=stipple) - - text_buffer.create_tag("foreground_stipple", foreground_stipple=stipple) - - text_buffer.create_tag("big_gap_before_line", pixels_above_lines=30) - - text_buffer.create_tag("big_gap_after_line", pixels_below_lines=30) - - text_buffer.create_tag("double_spaced_line", pixels_inside_wrap=10) - - text_buffer.create_tag("not_editable", editable=False) - - text_buffer.create_tag("word_wrap", wrap_mode=gtk.WRAP_WORD) - - text_buffer.create_tag("char_wrap", wrap_mode=gtk.WRAP_CHAR) - - text_buffer.create_tag("no_wrap", wrap_mode=gtk.WRAP_NONE) - - text_buffer.create_tag("center", justification=gtk.JUSTIFY_CENTER) - - text_buffer.create_tag("right_justify", justification=gtk.JUSTIFY_RIGHT) - - text_buffer.create_tag("wide_margins", - left_margin=50, right_margin=50) - - text_buffer.create_tag("strikethrough", strikethrough=True) - - text_buffer.create_tag("underline", - underline=pango.UNDERLINE_SINGLE) - - text_buffer.create_tag("double_underline", - underline=pango.UNDERLINE_DOUBLE) - - text_buffer.create_tag("superscript", - rise=10 * pango.SCALE, # 10 pixels - size=8 * pango.SCALE) # 8 points - - text_buffer.create_tag("subscript", - rise=-10 * pango.SCALE, # 10 pixels - size=8 * pango.SCALE) # 8 points - - text_buffer.create_tag("rtl_quote", - wrap_mode=gtk.WRAP_WORD, direction=gtk.TEXT_DIR_RTL, - indent=30, left_margin=20, right_margin=20) - - def insert_text(self, text_buffer): - # use the current directory for the file - try: - pixbuf = gtk.gdk.pixbuf_new_from_file(GTKLOGO_IMAGE) - except gobject.GError, error: - sys.exit("Failed to load image file gtk-logo-rgb.gif\n") - - scaled = pixbuf.scale_simple(32, 32, 'bilinear') - pixbuf = scaled - - # get start of buffer; each insertion will revalidate the - # iterator to point to just after the inserted text. - iter = text_buffer.get_iter_at_offset(0) - - text_buffer.insert(iter, "The text widget can display text with " - "all kinds of nifty attributes. It also supports multiple views " - "of the same buffer; this demo is showing the same buffer in " - "two places.\n\n") - - text_buffer.insert_with_tags_by_name(iter, "Font styles. ", "heading") - - text_buffer.insert(iter, "For example, you can have ") - text_buffer.insert_with_tags_by_name(iter, - "italic", "italic") - text_buffer.insert(iter, ", "); - text_buffer.insert_with_tags_by_name(iter, - "bold", "bold") - text_buffer.insert(iter, ", or ", -1) - text_buffer.insert_with_tags_by_name(iter, - "monospace(typewriter)", "monospace") - text_buffer.insert(iter, ", or ") - text_buffer.insert_with_tags_by_name(iter, - "big", "big") - text_buffer.insert(iter, " text. ") - text_buffer.insert(iter, "It's best not to hardcode specific text " - "sizes; you can use relative sizes as with CSS, such as ") - text_buffer.insert_with_tags_by_name(iter, - "xx-small", "xx-small") - text_buffer.insert(iter, " or ") - text_buffer.insert_with_tags_by_name(iter, - "x-large", "x-large") - text_buffer.insert(iter, " to ensure that your program properly " - "adapts if the user changes the default font size.\n\n") - - text_buffer.insert_with_tags_by_name(iter, "Colors. ", "heading") - - text_buffer.insert(iter, "Colors such as "); - text_buffer.insert_with_tags_by_name(iter, - "a blue foreground", "blue_foreground") - text_buffer.insert(iter, " or "); - text_buffer.insert_with_tags_by_name(iter, - "a red background", - "red_background") - text_buffer.insert(iter, " or even ", -1); - text_buffer.insert_with_tags_by_name(iter, - "a stippled red background", - "red_background", - "background_stipple") - - text_buffer.insert(iter, " or ", -1); - text_buffer.insert_with_tags_by_name(iter, - "a stippled blue foreground on solid red background", - "blue_foreground", - "red_background", - "foreground_stipple") - text_buffer.insert(iter, "(select that to read it) can be used.\n\n", -1); - - text_buffer.insert_with_tags_by_name(iter, - "Underline, strikethrough, and rise. ", "heading") - - text_buffer.insert_with_tags_by_name(iter, - "Strikethrough", - "strikethrough") - text_buffer.insert(iter, ", ", -1) - text_buffer.insert_with_tags_by_name(iter, - "underline", - "underline") - text_buffer.insert(iter, ", ", -1) - text_buffer.insert_with_tags_by_name(iter, - "double underline", - "double_underline") - text_buffer.insert(iter, ", ", -1) - text_buffer.insert_with_tags_by_name(iter, - "superscript", - "superscript") - text_buffer.insert(iter, ", and ", -1) - text_buffer.insert_with_tags_by_name(iter, - "subscript", - "subscript") - text_buffer.insert(iter, " are all supported.\n\n", -1) - - text_buffer.insert_with_tags_by_name(iter, "Images. ", - "heading") - - text_buffer.insert(iter, "The buffer can have images in it: ", -1) - text_buffer.insert_pixbuf(iter, pixbuf) - text_buffer.insert_pixbuf(iter, pixbuf) - text_buffer.insert_pixbuf(iter, pixbuf) - text_buffer.insert(iter, " for example.\n\n", -1) - - text_buffer.insert_with_tags_by_name(iter, "Spacing. ", - "heading") - - text_buffer.insert(iter, - "You can adjust the amount of space before each line.\n", -1) - - text_buffer.insert_with_tags_by_name(iter, - "This line has a whole lot of space before it.\n", - "big_gap_before_line", "wide_margins") - text_buffer.insert_with_tags_by_name(iter, - "You can also adjust the amount of space after each line; " - "this line has a whole lot of space after it.\n", - "big_gap_after_line", "wide_margins") - - text_buffer.insert_with_tags_by_name(iter, - "You can also adjust the amount of space between wrapped " - "lines; this line has extra space between each wrapped line " - "in the same paragraph. To show off wrapping, some filler " - "text: the quick brown fox jumped over the lazy dog. Blah " - "blah blah blah blah blah blah blah blah.\n", - "double_spaced_line", "wide_margins") - - text_buffer.insert(iter, "Also note that those lines have " - "extra-wide margins.\n\n", -1) - - text_buffer.insert_with_tags_by_name(iter, "Editability. ", "heading") - - text_buffer.insert_with_tags_by_name(iter, - "This line is 'locked down' and can't be edited by the " - "user - just try it! You can't delete this line.\n\n", - "not_editable") - - text_buffer.insert_with_tags_by_name(iter, "Wrapping. ", "heading") - - text_buffer.insert(iter, - "This line(and most of the others in this buffer) is " - "word-wrapped, using the proper Unicode algorithm. Word " - "wrap should work in all scripts and languages that GTK+ " - "supports. Let's make this a long paragraph to demonstrate: " - "blah blah blah blah blah blah blah blah blah blah blah " - "blah blah blah blah blah blah blah blah\n\n", -1); - - text_buffer.insert_with_tags_by_name(iter, - "This line has character-based wrapping, and can wrap " - "between any two character glyphs. Let's make this a long " - "paragraph to demonstrate: blah blah blah blah blah blah " - "blah blah blah blah blah blah blah blah blah blah blah " - "blah blah\n\n", "char_wrap") - - text_buffer.insert_with_tags_by_name(iter, - "This line has all wrapping turned off, so it makes the " - "horizontal scrollbar appear.\n\n\n", "no_wrap") - - text_buffer.insert_with_tags_by_name(iter, "Justification. ", - "heading"); - - text_buffer.insert_with_tags_by_name(iter, - "\nThis line has center justification.\n", "center") - - text_buffer.insert_with_tags_by_name(iter, - "This line has right justification.\n", "right_justify") - - text_buffer.insert_with_tags_by_name(iter, - "\nThis line has big wide margins. Text text text text " - "text text text text text text text text text text text " - "text text text text text text text text text text text " - "text text text text text text text text text text.\n", - "wide_margins"); - - text_buffer.insert_with_tags_by_name(iter, - "Internationalization. ", "heading") - - text_buffer.insert(iter, - "You can put all sorts of Unicode text in the buffer.\n\n" - "German(Deutsch S\303\274d) Gr\303\274\303\237 Gott\nGreek" - "(\316\225\316\273\316\273\316\267\316\275\316\271\316\272" - "\316\254) \316\223\316\265\316\271\316\254 \317\203\316\261" - "\317\202\nHebrew \327\251\327\234\327\225\327\235\n" - "Japanese(\346\227\245\346\234\254\350\252\236)\n\nThe " - "widget properly handles bidirectional text, word wrapping, " - "DOS/UNIX/Unicode paragraph separators, grapheme boundaries, " - "and so on using the Pango internationalization framework.\n", -1) - - text_buffer.insert(iter, "Here's a word-wrapped quote in a " - "right-to-left language:\n", -1) - text_buffer.insert_with_tags_by_name(iter, - "\331\210\331\202\330\257 \330\250\330\257\330\243 " - "\330\253\331\204\330\247\330\253 \331\205\331\206 " - "\330\243\331\203\330\253\330\261 \330\247\331\204\331" - "\205\330\244\330\263\330\263\330\247\330\252 \330\252" - "\331\202\330\257\331\205\330\247 \331\201\331\212 \330" - "\264\330\250\331\203\330\251 \330\247\331\203\330\263" - "\331\212\331\210\331\206 \330\250\330\261\330\247\331" - "\205\330\254\331\207\330\247 \331\203\331\205\331\206" - "\330\270\331\205\330\247\330\252 \331\204\330\247 \330" - "\252\330\263\330\271\331\211 \331\204\331\204\330\261" - "\330\250\330\255\330\214 \330\253\331\205 \330\252\330" - "\255\331\210\331\204\330\252 \331\201\331\212 \330\247" - "\331\204\330\263\331\206\331\210\330\247\330\252 \330" - "\247\331\204\330\256\331\205\330\263 \330\247\331\204" - "\331\205\330\247\330\266\331\212\330\251 \330\245\331" - "\204\331\211 \331\205\330\244\330\263\330\263\330\247" - "\330\252 \331\205\330\247\331\204\331\212\330\251 \331" - "\205\331\206\330\270\331\205\330\251\330\214 \331\210" - "\330\250\330\247\330\252\330\252 \330\254\330\262\330\241" - "\330\247 \331\205\331\206 \330\247\331\204\331\206\330\270" - "\330\247\331\205 \330\247\331\204\331\205\330\247\331\204" - "\331\212 \331\201\331\212 \330\250\331\204\330\257\330\247" - "\331\206\331\207\330\247\330\214 \331\210\331\204\331\203" - "\331\206\331\207\330\247 \330\252\330\252\330\256\330\265" - "\330\265 \331\201\331\212 \330\256\330\257\331\205\330\251 " - "\331\202\330\267\330\247\330\271 \330\247\331\204\331\205\330" - "\264\330\261\331\210\330\271\330\247\330\252 \330\247\331\204" - "\330\265\330\272\331\212\330\261\330\251. \331\210\330\243" - "\330\255\330\257 \330\243\331\203\330\253\330\261 \331\207" - "\330\260\331\207 \330\247\331\204\331\205\330\244\330\263" - "\330\263\330\247\330\252 \331\206\330\254\330\247\330\255" - "\330\247 \331\207\331\210 \302\273\330\250\330\247\331\206" - "\331\203\331\210\330\263\331\210\331\204\302\253 \331\201" - "\331\212 \330\250\331\210\331\204\331\212\331\201\331\212" - "\330\247.\n\n", "rtl_quote") - - text_buffer.insert(iter, "You can put widgets in the buffer: " - "Here's a button: ", -1) - - anchor = text_buffer.create_child_anchor(iter) - text_buffer.insert(iter, " and a menu: ", -1) - anchor = text_buffer.create_child_anchor(iter) - text_buffer.insert(iter, " and a scale: ", -1) - anchor = text_buffer.create_child_anchor(iter) - text_buffer.insert(iter, " and an animation: ", -1) - anchor = text_buffer.create_child_anchor(iter) - text_buffer.insert(iter, " finally a text entry: ", -1) - anchor = text_buffer.create_child_anchor(iter) - text_buffer.insert(iter, ".\n", -1) - - text_buffer.insert(iter, "\n\nThis demo doesn't demonstrate all " - "the GtkTextBuffer features; it leaves out, for example: " - "invisible/hidden text(doesn't work in GTK 2, but planned), " - "tab stops, application-drawn areas on the sides of the " - "widget for displaying breakpoints and such...", -1) - - # Apply word_wrap tag to whole buffer */ - start, end = text_buffer.get_bounds() - text_buffer.apply_tag_by_name("word_wrap", start, end) - - def attach_widgets(self, text_view): - buffer = text_view.get_buffer() - iter = buffer.get_start_iter() - i = 0 - while self.find_anchor(iter): - anchor = iter.get_child_anchor() - if i == 0: - widget = gtk.Button("Click Me") - widget.connect("clicked", self.easter_egg_callback) - elif i == 1: - widget = gtk.combo_box_new_text() - widget.append_text("Option 1") - widget.append_text("Option 2") - widget.append_text("Option 3") - elif i == 2: - widget = gtk.HScale() - widget.set_range(0, 100) - widget.set_size_request(70, -1) - elif i == 3: - widget = gtk.Image() - widget.set_from_file(FLOPPYBUDDY_IMAGE) - elif i == 4: - widget = gtk.Entry() - else: - raise ValueError - - text_view.add_child_at_anchor(widget, anchor) - widget.show_all() - i += 1 - return - - def find_anchor(self, iter): - while iter.forward_char(): - if iter.get_child_anchor(): - return True - return False - - def easter_egg_callback(self, button): - if self.win: - self.win.present() - return - - buffer = gtk.TextBuffer() - iter = buffer.get_start_iter() - buffer.insert(iter, - "This buffer is shared by a set of nested text views.\n Nested view:\n") - anchor = buffer.create_child_anchor(iter) - buffer.insert(iter, - "\nDon't do this in real applications, please.\n") - - view = gtk.TextView(buffer) - - self.recursive_attach_view(0, view, anchor) - - self.win = gtk.Window() - sw = gtk.ScrolledWindow() - sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC) - - self.win.add(sw) - sw.add(view) - self.win.set_default_size(300, 400) - self.win.show_all() - return - - def recursive_attach_view(self, depth, view, anchor): - if depth > 4: - return - child_view = gtk.TextView(view.get_buffer()) - # Event box is needed to add a black border around each child view - event_box = gtk.EventBox() - color = gtk.gdk.color_parse("black") - event_box.modify_bg(gtk.STATE_NORMAL, color) - align = gtk.Alignment(0.5, 0.5, 1.0, 1.0) - align.set_border_width(1) - - event_box.add(align) - align.add(child_view) - - view.add_child_at_anchor(event_box, anchor) - - self.recursive_attach_view(depth + 1, child_view, anchor) - return - -def main(): - TextViewDemo() - gtk.main() - -if __name__ == '__main__': - main() |