2001-07-07  Michael Natterer  <mitch@gimp.org>

	* app/tools/tool_manager.[ch]: put all tool_manager variables into
	a struct which is attached to a "Gimp". Pass a Gimp* to all
	tool_manager functions.

	* app/disp_callbacks.c
	* app/gdisplay.c
	* app/gimage.c
	* app/scale.c
	* app/scroll.c
	* app/undo.c
	* app/gui/convert-dialog.c
	* app/gui/edit-commands.c
	* app/gui/tool-options-dialog.c
	* app/gui/tools-commands.c: changed accordingly.

	* app/tools/gimpbezierselecttool.c
	* app/tools/gimpbrightnesscontrasttool.c
	* app/tools/gimpbycolorselecttool.c
	* app/tools/gimpclonetool.c
	* app/tools/gimpcolorbalancetool.c
	* app/tools/gimpcroptool.c
	* app/tools/gimpcurvestool.c
	* app/tools/gimpeditselectiontool.c
	* app/tools/gimphistogramtool.c
	* app/tools/gimphuesaturationtool.c
	* app/tools/gimplevelstool.c
	* app/tools/gimpposterizetool.c
	* app/tools/gimptexttool.c
	* app/tools/gimpthresholdtool.c
	* app/tools/gimptool.c
	* app/tools/gimptransformtool.c: mostly bad hacks for tool dialogs
	which exist without a real context. Needs some more review.