lib/ruiby_gtk/dsl/pixmap.rb
# Creative Commons BY-SA : Regis d'Aubarede <regis.aubarede@gmail.com>
# LGPL
=begin
dsl
image() ==> get_pixmap(file) + pix.scale ==> Img.new(pixbuf)
button("#") => htoolbar { toolbar_button() }
label("#") => get_image_from(name)
get_image => (Image)
Image.new( get_pixmap )
get_icon(n) ==> (Pixbuff)
get_pixmap(n)
get_pixmap ==> (Pixbuff)
?< fn= famfamfam+fn >
Pixbuff.new(fn) |
get_pixbuf("[]name") |
get_stockicon_pixbuf(name)
get_stockicon_pixbuf() ==> (Pixbuff)
Gtk::IconTheme.default().load_icon |
Gtk::IconTheme.default().load_icon(GTK2ICONNAME[icn]) |
Gtk::IconTheme.default().load_icon("process-stop")
get_image_from(name) ( Image )
Image.new(file: name) |
_sub_image(name) |
Image.new(:pixbuf => get_icon(iname))
Image.new(:stock => get_icon(iname))
_sub_image(name) ==> ( Image )
Image.new(pixbuf: get_pixbuf(name))
get_pixbuf(name) => ( Pixbuf )
Cache || Gdk::Pixbuf.new(filename) ||
get_stockicon_pixbuf(name)
=end
module Ruiby_dsl
########################### raster images access #############################
def get_image(name)
Image.new(get_pixmap(name));
end
def get_pixmap(name)
if name=~ /^(famfamfam|crystal|farmfresh)/
name=Dir.glob("#{Ruiby::MEDIA}/#{name.split(/\s+/).join("*")}*").first
end
if name.index('.')
if File.exists?(name)
@cach_pix||={}
@cach_pix[name]=Gdk::Pixbuf.new(:file =>name) unless @cach_pix[name]
return @cach_pix[name]
elsif name.index("[")
return get_pixbuf(name)
end
error("Unknown file #{name} for image raster")
return(nil)
end
begin
return get_stockicon_pixbuf(name)
rescue Exception => e
error("Unknown pixmap for icon '#{name}' :\n",e)
return nil
end
end
def get_stockicon_pixbuf(name)
begin
icn="#{name.downcase.gsub('_','-')}"
return Gtk::IconTheme.default().load_icon(icn,16,0)
rescue Exception => ee
if GTK2ICONNAME[icn]
( return Gtk::IconTheme.default().load_icon(GTK2ICONNAME[icn],16,0) ) rescue error($!)
end
puts ee.inspect
return Gtk::IconTheme.default().load_icon("process-stop",48,0)
end
end
GTK2ICONNAME= {
"about" => "help-about", "add" => "list-add", "bold" => "format-text-bold", "cancel" => "process-stop", "clear" => "edit-clear",
"close" => "window-close", "copy" => "edit-copy", "cut" => "edit-cut", "delete" => "edit-delete", "execute" => "system-run",
"find-and-replace" => "edit-find-replace", "find" => "edit-find", "fullscreen" => "view-fullscreen", "go-back-ltr" => "go-previous",
"go-back-rtl" => "go-next", "go-down" => "go-down", "go-forward-ltr" => "go-next", "go-forward-rtl" => "go-previous", "go-up" => "go-up",
"goto-bottom" => "go-bottom", "goto-first-ltr" => "go-first", "goto-first-rtl" => "go-last", "goto-last-ltr" => "go-last",
"goto-last-rtl" => "go-first", "goto-top" => "go-top", "help" => "help-contents", "home" => "go-home", "indent-ltr" => "format-indent-more",
"indent-rtl" => "format-indent-less", "italic" => "format-text-italic", "jump-to-ltr" => "go-jump", "jump-to-rtl" => "go-jump",
"justify-center" => "format-justify-center", "justify-fill" => "format-justify-fill", "justify-left" => "format-justify-left",
"justify-right" => "format-justify-right", "leave-fullscreen" => "view-restore", "media-forward-ltr" => "media-seek-forward",
"media-forward-rtl" => "media-seek-backward", "media-next-ltr" => "media-skip-forward", "media-next-rtl" => "media-skip-backward",
"media-pause" => "media-playback-pause", "media-play-ltr" => "media-playback-start", "media-previous-ltr" => "media-skip-backward",
"media-previous-rtl" => "media-skip-forward", "media-record" => "media-record", "media-rewind-ltr" => "media-seek-backward",
"media-rewind-rtl" => "media-seek-forward", "media-stop" => "media-playback-stop", "new" => "document-new", "open" => "document-open",
"paste" => "edit-paste", "print-preview" => "document-print-preview", "print" => "document-print", "properties" => "document-properties",
"quit" => "application-exit", "redo-ltr" => "edit-redo", "refresh" => "view-refresh", "remove" => "list-remove",
"revert-to-saved-ltr" => "document-revert", "revert-to-saved-rtl" => "document-revert", "save-as" => "document-save-as",
"save" => "document-save", "select-all" => "edit-select-all", "sort-ascending" => "view-sort-ascending",
"sort-descending" => "view-sort-descending", "spell-check" => "tools-check-spelling", "stop" => "process-stop",
"strikethrough" => "format-text-strikethrough", "underline" => "format-text-underline", "undo-ltr" => "edit-undo",
"unindent-ltr" => "format-indent-less", "unindent-rtl" => "format-indent-more", "zoom-100" => "zoom-original",
"zoom-fit" => "zoom-fit-best" }
# obsolete
def get_icon(name) get_pixmap(name) end
# get a Image widget from a file or from a Gtk::Stock or famfamfam/crystal embeded in Ruiby.
# image can be a filename or a predefined icon in GTK::Stock or a famfamfam/crystal icon name (without .png)
# for file image, whe can specify a sub image (sqared) :
# filename.png[NoCol , NoRow]xSize
# filename.png[3,2]x32 : extract a icon of 32x32 pixel size from third column/second line
# see samples/draw.rb
def get_image_from(name,size=:button)
if name.index('.')
return Image.new(file: name) if File.exists?(name)
return _sub_image(name) if name.index("[")
alert("unknown icone #{name}")
end
iname=get_icon(name)
if iname && Gdk::Pixbuf === iname
return Image.new(:pixbuf => iname)
elsif iname
Image.new(:stock => iname,:size=> size)
else
nil
end
end
def _sub_image(name)
Image.new(pixbuf: get_pixbuf(name))
end
def get_pixbuf(name)
@cach_pix={} unless defined?(@cach_pix)
if @cach_pix.size>100
puts "purge cached pixbuf (>100)"
@cach_pix={}
end
filename,px,py,bidon,dim=name.split(/\[|,|(\]x)/)
if filename && px && py && bidon && dim && File.exist?(filename)
dim=dim.to_i
@cach_pix[filename]=Gdk::Pixbuf.new(:file =>filename) unless @cach_pix[filename]
x0= dim*px.to_i
y0= dim*py.to_i
#p [x0,y0,"/",@cach_pix[filename].width,@cach_pix[filename].height]
Gdk::Pixbuf.new(@cach_pix[filename],x0,y0,dim,dim)
elsif File.exists?(name)
unless @cach_pix[name]
px=Gdk::Pixbuf.new(name) rescue error($!)
@cach_pix[name]=px if px
end
@cach_pix[name]
elsif ! name.index(".")
get_stockicon_pixbuf(name)
else
raise("file #{name} not exist");
end
end
end