diff options
Diffstat (limited to 'ruby_1_8_5/ext/tk/sample/scrollframe.rb')
| -rw-r--r-- | ruby_1_8_5/ext/tk/sample/scrollframe.rb | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/ruby_1_8_5/ext/tk/sample/scrollframe.rb b/ruby_1_8_5/ext/tk/sample/scrollframe.rb deleted file mode 100644 index b0ac6d3874..0000000000 --- a/ruby_1_8_5/ext/tk/sample/scrollframe.rb +++ /dev/null @@ -1,237 +0,0 @@ -# -# Tk::ScrollFrame class -# -# This widget class is a frame widget with scrollbars. -# The ScrollFrame doesn't propagate the size of embedded widgets. -# When it is configured, scrollregion of the container is changed. -# -# Scrollbars can be toggled by Tk::ScrollFrame#vscroll & hscroll. -# If horizontal or virtical scrollbar is turned off, the horizontal -# or virtical size of embedded widgets is propagated. -# -# Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp) -# -require 'tk' - -class Tk::ScrollFrame < TkFrame - include TkComposite - - DEFAULT_WIDTH = 200 - DEFAULT_HEIGHT = 200 - - def initialize_composite(keys={}) - @frame.configure(:width=>DEFAULT_WIDTH, :height=>DEFAULT_HEIGHT) - - # create scrollbars - @h_scroll = TkScrollbar.new(@frame, 'orient'=>'horizontal') - @v_scroll = TkScrollbar.new(@frame, 'orient'=>'vertical') - - # create a canvas widget - @canvas = TkCanvas.new(@frame, - :borderwidth=>0, :selectborderwidth=>0, - :highlightthickness=>0) - - # allignment - TkGrid.rowconfigure(@frame, 0, 'weight'=>1, 'minsize'=>0) - TkGrid.columnconfigure(@frame, 0, 'weight'=>1, 'minsize'=>0) - @canvas.grid('row'=>0, 'column'=>0, 'sticky'=>'news') - @frame.grid_propagate(false) - - # assign scrollbars - @canvas.xscrollbar(@h_scroll) - @canvas.yscrollbar(@v_scroll) - - # convert hash keys - keys = _symbolkey2str(keys) - - # check options for the frame - framekeys = {} - if keys.key?('classname') - keys['class'] = keys.delete('classname') - end - if @classname = keys.delete('class') - framekeys['class'] = @classname - end - if @colormap = keys.delete('colormap') - framekeys['colormap'] = @colormap - end - if @container = keys.delete('container') - framekeys['container'] = @container - end - if @visual = keys.delete('visual') - framekeys['visual'] = @visual - end - if @classname.kind_of? TkBindTag - @db_class = @classname - @classname = @classname.id - elsif @classname - @db_class = TkDatabaseClass.new(@classname) - else - @db_class = self.class - @classname = @db_class::WidgetClassName - end - - # create base frame - @base = TkFrame.new(@canvas, framekeys) - - # embed base frame - @cwin = TkcWindow.new(@canvas, [0, 0], :window=>@base, :anchor=>'nw') - @canvas.scrollregion(@cwin.bbox) - - # binding to reset scrollregion - @base.bind('Configure'){ _reset_scrollregion(nil, nil) } - - # set default receiver of method calls - @path = @base.path - - # scrollbars ON - vscroll(keys.delete('vscroll'){true}) - hscroll(keys.delete('hscroll'){true}) - - # please check the differences of the following definitions - option_methods( - :scrollbarwidth - ) - - # set receiver widgets for configure methods (with alias) - delegate_alias('scrollbarrelief', 'relief', @h_scroll, @v_scroll) - - # set receiver widgets for configure methods - delegate('DEFAULT', @base) - delegate('background', @frame, @base, @canvas, @h_scroll, @v_scroll) - delegate('width', @frame) - delegate('height', @frame) - delegate('activebackground', @h_scroll, @v_scroll) - delegate('troughcolor', @h_scroll, @v_scroll) - delegate('repeatdelay', @h_scroll, @v_scroll) - delegate('repeatinterval', @h_scroll, @v_scroll) - delegate('borderwidth', @frame) - delegate('relief', @frame) - - # do configure - configure keys unless keys.empty? - end - - # callback for Configure event - def _reset_scrollregion(h_mod=nil, v_mod=nil) - cx1, cy1, cx2, cy2 = @canvas.scrollregion - x1, y1, x2, y2 = @cwin.bbox - @canvas.scrollregion([x1, y1, x2, y2]) - - if h_mod.nil? && v_mod.nil? - if x2 != cx2 && TkGrid.info(@h_scroll).size == 0 - @frame.grid_propagate(true) - @canvas.width = x2 - Tk.update_idletasks - @frame.grid_propagate(false) - end - if y2 != cy2 && TkGrid.info(@v_scroll).size == 0 - @frame.grid_propagate(true) - @canvas.height = y2 - Tk.update_idletasks - @frame.grid_propagate(false) - end - else - @h_scroll.ungrid if h_mod == false - @v_scroll.ungrid if v_mod == false - - h_flag = (TkGrid.info(@h_scroll).size == 0) - v_flag = (TkGrid.info(@v_scroll).size == 0) - - @frame.grid_propagate(true) - - @canvas.width = (h_flag)? x2: @canvas.winfo_width - @canvas.height = (v_flag)? y2: @canvas.winfo_height - - @h_scroll.grid('row'=>1, 'column'=>0, 'sticky'=>'ew') if h_mod - @v_scroll.grid('row'=>0, 'column'=>1, 'sticky'=>'ns') if v_mod - - Tk.update_idletasks - - @frame.grid_propagate(false) - end - end - private :_reset_scrollregion - - # forbid to change binding of @base frame - def bind(*args) - @frame.bind(*args) - end - def bind_append(*args) - @frame.bind_append(*args) - end - def bind_remove(*args) - @frame.bind_remove(*args) - end - def bindinfo(*args) - @frame.bindinfo(*args) - end - - # set width of scrollbar - def scrollbarwidth(width = nil) - if width - @h_scroll.width(width) - @v_scroll.width(width) - else - @h_scroll.width - end - end - - # vertical scrollbar : ON/OFF - def vscroll(mode) - Tk.update_idletasks - st = TkGrid.info(@v_scroll) - if mode && st.size == 0 then - @v_scroll.grid('row'=>0, 'column'=>1, 'sticky'=>'ns') - _reset_scrollregion(nil, true) - elsif !mode && st.size != 0 then - _reset_scrollregion(nil, false) - else - _reset_scrollregion(nil, nil) - end - self - end - - # horizontal scrollbar : ON/OFF - def hscroll(mode) - Tk.update_idletasks - st = TkGrid.info(@h_scroll) - if mode && st.size == 0 then - _reset_scrollregion(true, nil) - elsif !mode && st.size != 0 then - _reset_scrollregion(false, nil) - else - _reset_scrollregion(nil, nil) - end - self - end -end - -# test -if __FILE__ == $0 - f = Tk::ScrollFrame.new(:scrollbarwidth=>10, :width=>300, :height=>200) - f.pack(:expand=>true, :fill=>:both) - - TkButton.new(f, :text=>'foo button', :command=>proc{puts 'foo'}).pack - TkButton.new(f, :text=>'baaar button', :command=>proc{puts 'baaar'}).pack - TkButton.new(f, :text=>'baz button', :command=>proc{puts 'baz'}).pack - TkButton.new(f, :text=>'hoge hoge button', - :command=>proc{puts 'hoge hoge'}).pack(:side=>:bottom) - - # f.hscroll(false) - - Tk.after(3000){ - t = TkText.new(f).pack(:expand=>true, :fill=>:both) - t.insert(:end, 'Here is a text widget') - } - - Tk.after(6000){ f.vscroll(false) } - - Tk.after(9000){ f.vscroll(true) } - - Tk.after(12000){ f.hscroll(false) } - - Tk.after(15000){ f.hscroll(true) } - - Tk.mainloop -end |