diff options
Diffstat (limited to 'ext/tk/sample/demos-en/image3.rb')
-rw-r--r-- | ext/tk/sample/demos-en/image3.rb | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/ext/tk/sample/demos-en/image3.rb b/ext/tk/sample/demos-en/image3.rb deleted file mode 100644 index 9b2be20073..0000000000 --- a/ext/tk/sample/demos-en/image3.rb +++ /dev/null @@ -1,126 +0,0 @@ -# frozen_string_literal: false -# image3.rb -# -# This demonstration script creates a simple collection of widgets -# that allow you to select and view images in a Tk label. -# -# widget demo 'load image' (called by 'widget') -# - -# toplevel widget -if defined?($image3_demo) && $image3_demo - $image3_demo.destroy - $image3_demo = nil -end - -# demo toplevel widget -$image3_demo = TkToplevel.new {|w| - title('Image Demonstration #3') - iconname("Image3") - positionWindow(w) -} - -base_frame = TkFrame.new($image3_demo).pack(:fill=>:both, :expand=>true) - -# -def loadDir3(w) - w.delete(0,'end') - Dir.glob([$dirName,'*'].join(File::Separator)).sort.each{|f| - w.insert('end',File.basename(f)) - } -end - -# selectAndLoadDir3 -- -# This procedure pops up a dialog to ask for a directory to load into -# the listbox and (if the user presses OK) reloads the directory -# listbox from the directory named in the demo's entry. -# -# Arguments: -# w - Name of the toplevel window of the demo. -def selectAndLoadDir3(w, lbox) - dir = Tk.chooseDirectory(:initialdir=>$dirName.value, - :parent=>w, :mustexist=>true) - if dir.length > 0 - $dirName.value = dir - loadDir3(lbox) - end -end - -def loadImage(w,x,y) - $image3a.file([$dirName, w.get("@#{x},#{y}")].join(File::Separator)) -end - - -# label -msg = TkLabel.new(base_frame) { - font $font - wraplength '4i' - justify 'left' - text "This demonstration allows you to view images using a Tk \"photo\" image. First type a directory name in the listbox, then type Return to load the directory into the listbox. Then double-click on a file name in the listbox to see that image." -} -msg.pack('side'=>'top') - -# frame -TkFrame.new(base_frame) {|frame| - TkButton.new(frame) { - text 'Dismiss' - command proc{ - tmppath = $image3_demo - $image3_demo = nil - tmppath.destroy - } - }.pack('side'=>'left', 'expand'=>'yes') - - TkButton.new(frame) { - text 'Show Code' - command proc{showCode 'image3'} - }.pack('side'=>'left', 'expand'=>'yes') - -}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m') - -# variable -$dirName = TkVariable.new([$demo_dir,'..','images'].join(File::Separator)) - -# image -begin - $image3a.delete -rescue -end -$image3a = TkPhotoImage.new - -# -image3_f = TkFrame.new(base_frame).pack(:fill=>:both, :expand=>true) - -image3_df = TkLabelFrame.new(base_frame, :text=>'Directory:') - -image3_ff = TkLabelFrame.new(base_frame, :text=>'File:', - :padx=>'2m', :pady=>'2m') -image3_lbx = TkListbox.new(image3_ff, :width=>20, :height=>10) { - pack(:side=>:left, :fill=>:y, :expand=>true) - yscrollbar(TkScrollbar.new(image3_ff).pack(:side=>:left, :fill=>:y, - :expand=>true)) - insert(0, *(%w(earth.gif earthris.gif teapot.ppm))) - bind('Double-1', proc{|x,y| loadImage(self, x, y)}, '%x %y') -} - -image3_ent = TkEntry.new(image3_df, :width=>30, :textvariable=>$dirName){ - pack(:side=>:left, :fill=>:both, :padx=>'2m', :pady=>'2m', :expand=>true) - bind('Return', proc{loadDir3(image3_lbx)}) -} - -TkButton.new(image3_df, :pady=>0, :padx=>'2m', :text=>"Select Dir.", - :command=>proc{selectAndLoadDir3(image3_ent, image3_lbx)}) { - pack(:side=>:left, :fill=>:y, :padx=>[0, '2m'], :pady=>'2m') -} - -image3_if = TkLabelFrame.new(base_frame, :text=>'Image:') {|f| - # TkLabel.new(f, :image=>$image3a).pack(:padx=>'2m', :pady=>'2m') - Tk::Label.new(f, :image=>$image3a).pack(:padx=>'2m', :pady=>'2m') -} - -Tk.grid(image3_df, '-', - :sticky=>:ew, :padx=>'1m', :pady=>'1m', :in=>image3_f) -Tk.grid(image3_ff, image3_if, - :sticky=>:nw, :padx=>'1m', :pady=>'1m', :in=>image3_f) -TkGrid.columnconfigure(image3_f, 1, :weight=>1) - |