2005-05-21 Brian Dessent <brian@dessent.net>

2005-05-21  Brian Dessent  <brian@dessent.net>

	* prereq.cc: New file.
	* prereq.h: Ditto.
	* tree-minus.bmp: Ditto.
	* tree-plus.bmp: Ditto.
	* Makefile.am: Add prereq.cc and prereq.h to build.
	* PickCategoryLine.cc (PickCategoryLine::paint): Add new parameter and
	refactor.  Use bitmap for '+' and '-' indicators.  Draw package lines
	column-wise for better drawing efficiency.
	(PickCategoryLine::click): Use previously calculated x value.
	* PickCategoryLine.h (PickCategoryLine::paint): Update prototype.  Add
	'spin_x' member.
	* PickLine.h (PickLine:paint): Update prototype.
	* PickPackageLine.cc (PickPackageLine::DrawCheck): Remove.
	(PickPackageLine::DrawIcon): New function.
	(PickPackageLine::paint): Add parameter.  Refactor completely for more
	efficient painting.
	* PickPackageLine.h (PickPackageLine::DrawIcon): Add prototype.
	(PickPackageLine::paint): Update prototype.
	(PickPackageLine::DrawCheck): Remove.
	* PickView.cc (pkg_headers): Remove unused 'slen' field, add new
	'needs_clip' field to signify if clipping is necessary for this column.
	(PickView::note_width): Fold long line.  Refactor slightly for
	simplicity.
	(PickView::set_view_mode): Remove.
	(PickView::cycleViewMode): New function.
	(PickView::setViewMode): Refactor completely.  Incorporate functionality
	of clear_view() here instead.  Simplify package selection into a single
	'for' loop rather than repeating code for each type.
	(isObsolete): New function, with second overloaded version.
	(PickView::setObsolete): New function.
	(PickView::insert_pkg): Do not show obsolete packages.  Move
	declaration of 'db' lower.  Fix whitespace.
	(PickView::insert_category): Do not show obsolete packages.
	(PickView::clear_view): Remove.  Moved logic into 'setViewMode'.
	(PickView::scroll): Add additional parameter 'howmany' with default
	value of 1.  Scroll by 'howmany' lines for SB_LINEDOWN and SB_LINEUP.
	(NUM_CATEGORY_COL_WIDTH): Define.
	(PickView::init_headers): Fix whitespace.  Add comments.  Ignore
	obsolete packages in width calculations.  Add functionality to size
	'Category' column so that at least NUM_CATEGORY_COL_WIDTH categories
	are displayed for every package.  Ensure that 'new_col' takes into
	account all possible labels.
	(PickView::PickView): Initialize showObsolete to false.
	(PickView::init): Remove unused bitmap bm_rtarrow.  Add new bitmaps
	bm_treeplus and bm_treeminus.  Use a macro for better readability.
	Fix whitespace formatting.  Remove header computation from here, call
	refresh() instead.
	(PickView::registerWindowClass): Remove unnecessary background brush.
	(PickView::WindowProc): Add support for WM_MOUSEWHEEL message
	processing.  Fix indentation.  Reformat for readability.
	(PickView::paint): Get the update region before calling BeginPaint.
	Fill the update region with the default colors.  Do not do clipping
	here.  Pass update region to the PickLine paint function instead.
	Free the update region when finished.
	(PickView::Create): Fix indentation.
	(PickView::defaultTrust): Ditto.
	(PickView::refresh): Add column recalculation logic here.
	* PickView.h: Fix indentation.
	(RTARROW_WIDTH): Remove unused define.
	(NEW_COL_SIZE_SLOP): Ditto.
	(TREE_INDENT): Define.
	(PickView::get_view_mode): Remove.
	(PickView::set_view_mode): Rename to setViewMode for consistency.
	(PickView::cycleViewMode): Add new function.
	(PickView::setObsolete): Ditto.
	(PickView::clear_view): Remove.
	(PickView::bm_treeplus): Define new member.
	(PickView::bm_treeminus): Ditto.
	(PickView::scroll): Add parameter.
	(PickView::Header::slen): Remove unused member.
	(PickView::Header::needs_clip): Define new member.
	(PickView::showObsolete): Ditto.
	(isObsolete): Add prototype, and for overloaded version as well.
	* choose.cc: Add include.
	(ChooserControlsInfo): Allow new checkbox to be resized.
	(ChooserPage::OnInit): Start dialog with 'Hide obsolete' checked.
	(ChooserPage::OnNext): Call the dependency checker, act accordingly.
	(ChooserPage::changeTrust): Notify dependency checker of current trust
	level when it changes.
	(ChooserPage::OnMessageCmd): Just call cycleViewMode instead when
	changing the view.  Update the chooser when the user toggles the
	'hide obsolete' checkbox.
	(ChooserPage::OnMouseWheel): New function.  Pass mouse wheel message
	on to chooser.
	* choose.h (OnMouseWheel): Add prototype.
	* main.cc: Add include.
	(main): Define and initialize the PrereqPage object.  Add it into
	the property sheet list.
	* PropPage.cc (PropertyPage::DialogProc): Add support for WM_MOUSEWHEEL
	message processing in derived classes.
	(PropertyPage::OnMouseWheel): New function.
	* PropPage.h (PropertyPage::OnMouseWheel): Add prototype.
	* res.rc (IDD_LOCAL_DIR): Shorten edit box so that pushbutton is not
	crowded.
	(IDD_SITE): Provide static text with an ID so that it can be resized
	properly.  Move pushbutton slightly to right so that it doesn't crowd
	edit box.
	(IDD_SPLASH): Change copyright displayed on spash screen to be generic
	since the actual list of contributors is long.
	(IDD_CHOOSE): Add checkbox.  Resize other controls to accomodate.
	(IDD_PREREQ): New dialog.
	(SPIN): Delete duplicated bitmap resource.
	(IDB_RTARROW): Remove unused bitmap resource.
	(IDB_TREE_PLUS): Add.
	(IDB_TREE_MINUS): Ditto.
	(IDS_TRUSTPREV_TOOLTIP): Revise wording to be more concise.
	(IDS_TRUSTCURR_TOOLTIP): Ditto.
	(IDS_TRUSTEXP_TOOLTIP): Ditto.
	(IDS_VIEWBUTTON_TOOLTIP): Ditto.
	* resource.h (IDD_PREREQ): Define.
	(IDB_RTARROW): Remove.
	(IDB_TREE_PLUS): Add, and renumber.
	(IDB_TREE_MINUS): Ditto.
	(IDC_SITE_USERURL): Define.
	(IDC_CHOOSE_HIDE): Ditto.
	(IDC_PREREQ_TEXT): Ditto.
	(IDC_PREREQ_EDIT): Ditto.
	(IDC_PREREQ_CHECK): Ditto.
	* site.cc (SiteControlsInfo): Ensure that 'User URL' static text is
	properly resized.