2003-09-12 Michael Natterer <mitch@gimp.org>
Added support for permanently showing the visible vectors, not
only when the vectors tool is active:
* app/display/gimpdisplayshell.[ch]: added
gimp_display_shell_draw_vector() which draws a single GimpVectors
object and gimp_display_shell_draw_vectors() which draws all
visible ones. Added "gint paused_count" and new functions
gimp_display_shell_paunse()/resume(). Pause/resume the active tool
and draw/undraw the visible vectors when paused_count changes from
0 to 1 and from 1 to 0.
* app/display/gimpdisplayshell-callbacks.c
* app/display/gimpdisplayshell-scale.c
* app/display/gimpdisplayshell-scroll.c: call the new
freeze()/thaw() functions instead of calling the tool_manager
directly. Removes the tools/ sependency from the scale and scroll
files. Also draw the vectors once when the canvas is realized so
XOR drawing is in the correct state.
* app/display/gimpdisplayshell-handlers.c: connect to
image->vectors' "add" and "remove" signal and to the "freeze",
"thaw" and "visibility_changed" signals of all vectors in
image->vectors and update vectors drawing accordingly.