rfalke: Add three new graphic primitives: - canvas_...

This is an automated notification of a change to freeciv cvs, 
on Tue Feb  3 12:16:07 PST 2004 = Tue Feb  3 20:16:07 2004 (GMT)
by Raimar Falke <rf13@xxxxxxxxxxxxxxxxx>

---- Files affected:

freeciv/client control.c mapview_common.c mapview_common.h packhand.c
freeciv/client/gui-gtk gui_main.c gui_main.h mapview.c
freeciv/client/gui-gtk-2.0 mapview.c
freeciv/client/gui-mui mapview.c
freeciv/client/gui-stub mapview.c
freeciv/client/gui-win32 mapview.c
freeciv/client/gui-xaw gui_main.c gui_main.h mapview.c
freeciv/client/include mapview_g.h

---- Log message:
      Tag: HEAD

Add three new graphic primitives:
 - canvas_store_create: creates a new canvas store of the given size
 - canvas_store_free: frees the given canvas store
 - gui_copy_canvas: copies an area from one canvas store to another

Move functions and so code from individual mapview.c files into
mapview_common.c. The functions set_overview_dimensions,
overview_update_tile and refresh_overview_canvas got
moved. refresh_overview_viewrect got folded into
refresh_overview_canvas. A new gui-specific callback map_size_changed
was added to allow the gui to resize gui-elements.

Only the XAW and GTK1 client were fully updated and tested.

Patch from Raimar Falke in PR#7301.