* Copyright (C) 2012, MinGW Project
*
*
- * Implementation of the methods for the pkgListViewMaker class, to
- * support the display of the package list in the mingw-get graphical
- * user interface.
+ * Implementation of the methods for the pkgListViewMaker class, and
+ * its AppWindowMaker client API, to support the display of the package
+ * list in the mingw-get graphical user interface.
*
*
* This is free software. Permission is granted to copy, modify and
#include "guimain.h"
#include "pkgbase.h"
#include "pkglist.h"
+#include "pkgtask.h"
#include "pkgkeys.h"
#include "pkginfo.h"
delete dir;
}
+static char *pkgGetTitle( pkgXmlNode *pkg, const pkgXmlNode *xml_root )
+{
+ /* A private helper method, to retrieve the title attribute
+ * associated with the description for the nominated package.
+ *
+ * Note: this should really return a const char *, but then
+ * we would need to cast it to non-const for mapping into the
+ * ill-formed structure of Microsoft's LVITEM, so we may just
+ * as well return the non-const result anyway.
+ */
+ pkgXmlNode *desc = pkg->FindFirstAssociate( description_key );
+ while( desc != NULL )
+ {
+ /* Handling it internally as the const which it should be...
+ */
+ const char *title;
+ if( (title = desc->GetPropVal( title_key, NULL )) != NULL )
+ /*
+ * As soon as we find a description element with an
+ * assigned title attribute, immediately return it,
+ * (with the required cast to non-const).
+ */
+ return (char *)(title);
+
+ /* If we haven't yet found any title attribute, check for any
+ * further description elements at the current XML nesting level.
+ */
+ desc = desc->FindNextAssociate( description_key );
+ }
+
+ /* If we've exhausted all description elements at the current XML
+ * nesting level, without finding a title attribute, and we haven't
+ * checked all enclosing levels back to the document root...
+ */
+ if( pkg != xml_root )
+ /*
+ * ...then continue the search in the immediately enclosing level.
+ */
+ return pkgGetTitle( pkg->GetParent(), xml_root );
+
+ /* If we get to here, then we've searched all levels back to the
+ * document root, and have failed to find any title attribute; we
+ * have nothing to return.
+ */
+ return NULL;
+}
+
+static inline char *pkgGetTitle( pkgXmlNode *pkg )
+{
+ /* Overload the preceding function, to automatically generate
+ * the required reference to the XML document root.
+ */
+ return pkgGetTitle( pkg->GetParent(), pkg->GetDocumentRoot() );
+}
+
+static inline
+char *version_string_copy( char *buf, const char *text, int fill = 0 )
+{
+ /* Local helper function to construct a package version string
+ * from individual version specific elements of the tarname.
+ */
+ if( text != NULL )
+ {
+ /* First, if a fill character is specified, copy it as the
+ * first character of the result; (we assume that we are
+ * appending to a previously constructed result, and that
+ * this is the field separator character).
+ */
+ if( fill != 0 ) *buf++ = fill;
+
+ /* Now, append "text" up to, and including its final NUL
+ * terminator; (note that we do NOT guard against buffer
+ * overrun, as we have complete control over the calling
+ * context, where we allocated a result buffer at least
+ * as long as the tarname string from which the composed
+ * version string is extracted, and the composed result
+ * can never exceed the original length of this).
+ */
+ do { if( (*buf = *text) != '\0' ) ++buf; } while( *text++ != '\0' );
+ }
+ /* Finally, we return a pointer to the terminating NUL of
+ * the result, so as to facilitate appending further text.
+ */
+ return buf;
+}
+
+static char *pkgVersionString( char *buf, pkgSpecs *pkg )
+{
+ /* Helper method to construct a fully qualified version string
+ * from the decomposed package tarname form in a pkgSpecs structure.
+ *
+ * We begin with the concatenation of package version and build ID
+ * fields, retrieved from the pkgSpecs representation...
+ */
+ char *update = version_string_copy( buf, pkg->GetPackageVersion() );
+ update = version_string_copy( update, pkg->GetPackageBuild(), '-' );
+ if( pkg->GetSubSystemVersion() != NULL )
+ {
+ /* ...then, we append the sub-system ID, if applicable...
+ */
+ update = version_string_copy( update, pkg->GetSubSystemName(), '-' );
+ update = version_string_copy( update, pkg->GetSubSystemVersion(), '-' );
+ update = version_string_copy( update, pkg->GetSubSystemBuild(), '-' );
+ }
+ /* ...and finally, we return a pointer to the buffer in which
+ * we constructed the fully qualified version string.
+ */
+ return buf;
+}
+
pkgListViewMaker::pkgListViewMaker( HWND pane ): ListView( pane )
{
/* Constructor: initialise the invariant parameters within the
* embedded W32API ListView control structure.
*/
content.stateMask = 0;
- content.mask = LVIF_PARAM | LVIF_TEXT | LVIF_IMAGE | LVIF_STATE;
+ content.mask = LVIF_PARAM | LVIF_IMAGE | LVIF_STATE;
+ content.iSubItem = 0;
content.iItem = -1;
}
void pkgListViewMaker::InsertItem( pkgXmlNode *pkg, char *class_name )
{
/* Private method to add a single package record, as an individual
- * row item, to the displayed list view table.
+ * row item, to the displayed list view table; begin by filling in
+ * the appropriate fields within the "content" structure...
*/
+ content.iItem++;
content.state = 0;
- content.iItem += 1;
- content.iSubItem = 0;
content.lParam = (unsigned long)(pkg);
- content.pszText = "";
+ /* ...then delegate the actual entry construction to...
+ */
+ UpdateItem( class_name, true );
+}
+
+inline bool pkgListViewMaker::GetItem( void )
+{
+ /* An inline helper method to load the content structure from the
+ * next available item, if any, in the package list view; returns
+ * true when content is successfully loaded, else returns false.
+ */
+ content.iItem++; return ListView_GetItem( ListView, &content );
+}
+
+void pkgListViewMaker::UpdateItem( char *class_name, bool new_entry )
+{
/* Assign a temporary action item, through which we may identify
* the latest available, and currently installed (if any), version
* attributes for the package under consideration.
*/
pkgActionItem avail;
- pkgXmlNode *rel = pkgGetStatus( pkg, &avail );
+ pkgXmlNode *package = (pkgXmlNode *)(content.lParam);
+ pkgXmlNode *installed = pkgGetStatus( package, &avail );
/* Decompose the package tarname identifier for the latest available
* release, into its individual package specification properties.
*/
- pkgSpecs latest( pkg = avail.Selection() );
+ pkgSpecs latest( package = avail.Selection() );
/* Allocate a temporary working text buffer, in which to format
* package property values for display...
*/
- size_t len = strlen( pkg->GetPropVal( tarname_key, value_none ) );
- if( rel != NULL )
+ size_t len = strlen( package->GetPropVal( tarname_key, value_none ) );
+ if( installed != NULL )
{
/* ...ensuring that it is at least as large as the longer of the
* latest or installed release tarname.
*/
- size_t altlen = strlen( rel->GetPropVal( tarname_key, value_none ) );
+ size_t altlen = strlen( installed->GetPropVal( tarname_key, value_none ) );
if( altlen > len ) len = altlen;
}
char buf[1 + len];
/* Choose a suitable icon for representation of the installation
* status of the package under consideration...
*/
- if( rel != NULL )
+ if( installed != NULL )
{
/* ...noting that, when it is already installed...
*/
- pkgSpecs current( rel );
- if( latest > current )
- /*
- * ...and, when the latest available is NEWER than the
- * installed version, then we choose the icon indicating
- * an installed package with an available update...
- */
- content.iImage = PKGSTATE( INSTALLED_OLD );
-
- else
- /* ...or, when the latest available is NOT NEWER than
- * the installed version, then we choose the alternative
- * icon, simply indicating an installed package...
- */
- content.iImage = PKGSTATE( INSTALLED_CURRENT );
+ pkgSpecs current( installed );
+ content.iImage = (latest > current)
+ ? /* ...and, when the latest available is NEWER than the
+ * installed version, then we choose the icon indicating
+ * an installed package with an available update...
+ */
+ PKGSTATE( INSTALLED_OLD )
+
+ : /* ...or, when the latest available is NOT NEWER than
+ * the installed version, then we choose the alternative
+ * icon, simply indicating an installed package...
+ */
+ PKGSTATE( INSTALLED_CURRENT );
/* ...and also, load the version identification string for
* the installed version into the working text buffer.
*/
- GetVersionString( buf, ¤t );
+ pkgVersionString( buf, ¤t );
}
else
- /* Alternatively, for any package which is not recorded as
+ { /* Alternatively, for any package which is not recorded as
* installed, choose the icon indicating an available, but
- * not (yet) installed package.
+ * not (yet) installed package...
*/
content.iImage = PKGSTATE( AVAILABLE );
- /* Add the package identification record, as a list item...
- */
- ListView_InsertItem( ListView, &content );
- /*
- * ...and fill in the text for the package name and class columns.
- */
- ListView_SetItemText( ListView, content.iItem, 1, package_name );
- ListView_SetItemText( ListView, content.iItem, 2, class_name );
-
- /* When an installed package release has been identified...
- */
- if( rel != NULL )
- /*
- * ...fill in the version identificaton text appropriately.
+ /* ...and mark the list view column entry, for the installed
+ * version, as empty.
*/
- ListView_SetItemText( ListView, content.iItem, 3, buf );
+ *buf = '\0';
+ }
- /* Finally, fill in the text for the latest version identification
- * and package description columns.
+ /* When compiling a new list entry...
*/
- ListView_SetItemText( ListView, content.iItem, 4, GetVersionString( buf, &latest ) );
- ListView_SetItemText( ListView, content.iItem, 5, GetTitle( avail.Selection()) );
-}
-
-char *pkgListViewMaker::GetTitle( pkgXmlNode *pkg, const pkgXmlNode *xml_root )
-{
- /* A private helper method, to retrieve the title attribute
- * associated with the description for the nominated package.
- *
- * Note: this should really return a const char *, but then
- * we would need to cast it to non-const for mapping into the
- * ill-formed structure of Microsoft's LVITEM, so we may just
- * as well return the non-const result anyway.
- */
- pkgXmlNode *desc = pkg->FindFirstAssociate( description_key );
- while( desc != NULL )
+ if( new_entry )
{
- /* Handling it internally as the const which it should be...
- */
- const char *title;
- if( (title = desc->GetPropVal( title_key, NULL )) != NULL )
- /*
- * As soon as we find a description element with an
- * assigned title attribute, immediately return it,
- * (with the required cast to non-const).
- */
- return (char *)(title);
-
- /* If we haven't yet found any title attribute, check for any
- * further description elements at the current XML nesting level.
+ /* ...add the package identification record, as a new item...
*/
- desc = desc->FindNextAssociate( description_key );
- }
-
- /* If we've exhausted all description elements at the current XML
- * nesting level, without finding a title attribute, and we haven't
- * checked all enclosing levels back to the document root...
- */
- if( pkg != xml_root )
+ ListView_InsertItem( ListView, &content );
/*
- * ...then continue the search in the immediately enclosing level.
+ * ...and fill in the text for the package name, class name,
+ * and package description columns...
*/
- return GetTitle( pkg->GetParent() );
-
- /* If we get to here, then we've searched all levels back to the
- * document root, and have failed to find any title attribute; we
- * have nothing to return.
- */
- return NULL;
-}
-
-static inline
-char *version_string_copy( char *buf, const char *text, int fill = 0 )
-{
- /* Local helper function to construct a package version string
- * from individual version specific elements of the tarname.
- */
- if( text != NULL )
- {
- /* First, if a fill character is specified, copy it as the
- * first character of the result; (we assume that we are
- * appending to a previously constructed result, and that
- * this is the field separator character).
+ ListView_SetItemText( ListView, content.iItem, 1, package_name );
+ ListView_SetItemText( ListView, content.iItem, 2, class_name );
+ ListView_SetItemText( ListView, content.iItem, 5, pkgGetTitle( package ) );
+ }
+ else
+ /* ...otherwise, this is simply a request to update an
+ * existing item, in place; do so. (Note that, in this
+ * case, we DO NOT touch the package name, class name,
+ * or package description column content).
*/
- if( fill != 0 ) *buf++ = fill;
+ ListView_SetItem( ListView, &content );
- /* Now, append "text" up to, and including its final NUL
- * terminator; (note that we do NOT guard against buffer
- * overrun, as we have complete control over the calling
- * context, where we allocated a result buffer at least
- * as long as the tarname string from which the composed
- * version string is extracted, and the composed result
- * can never exceed the original length of this).
- */
- do { if( (*buf = *text) != '\0' ) ++buf; } while( *text++ != '\0' );
- }
- /* Finally, we return a pointer to the terminating NUL of
- * the result, so as to facilitate appending further text.
+ /* Always fill in the text, as established above, in the
+ * column which identifies the currently installed version,
+ * if any, or clear it if the package is not installed.
*/
- return buf;
-}
+ ListView_SetItemText( ListView, content.iItem, 3, buf );
-char *pkgListViewMaker::GetVersionString( char *buf, pkgSpecs *pkg )
-{
- /* Helper method to construct a fully qualified version string
- * from the decomposed package tarname form in a pkgSpecs structure.
- *
- * We begin with the concatenation of package version and build ID
- * fields, retrieved from the pkgSpecs representation...
+ /* Finally, fill in the text of the column which identifies
+ * the latest available version of the package.
*/
- char *update = version_string_copy( buf, pkg->GetPackageVersion() );
- update = version_string_copy( update, pkg->GetPackageBuild(), '-' );
- if( pkg->GetSubSystemVersion() != NULL )
- {
- /* ...then, we append the sub-system ID, if applicable...
- */
- update = version_string_copy( update, pkg->GetSubSystemName(), '-' );
- update = version_string_copy( update, pkg->GetSubSystemVersion(), '-' );
- update = version_string_copy( update, pkg->GetSubSystemBuild(), '-' );
- }
- /* ...and finally, we return a pointer to the buffer in which
- * we constructed the fully qualified version string.
- */
- return buf;
+ ListView_SetItemText( ListView, content.iItem, 4, pkgVersionString( buf, &latest ) );
}
void pkgListViewMaker::Dispatch( pkgXmlNode *package )
}
}
+void pkgListViewMaker::MarkScheduledActions( pkgActionItem *schedule )
+{
+ /* Method to reassign icons to entries within the package list view,
+ * indicating any which have been marked for installation, upgrade,
+ * or removal of the associated package.
+ */
+ for( content.iItem = -1; GetItem(); )
+ {
+ /* Visiting every entry in the list...
+ */
+ pkgActionItem *ref;
+ if( (ref = schedule->GetReference( (pkgXmlNode *)(content.lParam) )) != NULL )
+ {
+ /* ...identify those which are associated with a scheduled action...
+ */
+ unsigned long opcode;
+ if( (opcode = ref->HasAttribute( ACTION_MASK )) == ACTION_INSTALL )
+ {
+ /* ...selecting the appropriate icon to mark those packages
+ * which have been scheduled for installation...
+ *
+ * FIXME: we should also consider that such packages
+ * may have been scheduled for reinstallation.
+ */
+ content.iImage = PKGSTATE( AVAILABLE_INSTALL );
+ }
+ else if( opcode == ACTION_UPGRADE )
+ {
+ /* ...those which have been scheduled for upgrade...
+ */
+ content.iImage = PKGSTATE( UPGRADE );
+ }
+ else if( opcode == ACTION_REMOVE )
+ {
+ /* ...and those which have been scheduled for removal.
+ */
+ content.iImage = PKGSTATE( REMOVE );
+ }
+ else
+ { /* Where a scheduled action is any other than those above,
+ * handle as if there was no scheduled action...
+ */
+ opcode = 0UL;
+ /*
+ * ...and ensure that the list view entry reflects the
+ * normal display state for the associated package.
+ */
+ UpdateItem( NULL );
+ }
+ if( opcode != 0UL )
+ /*
+ * Where an action mark is appropriate, ensure that it
+ * is applied to the list view entry.
+ */
+ ListView_SetItem( ListView, &content );
+ }
+ }
+}
+
+void pkgListViewMaker::UpdateListView( void )
+{
+ /* A simple helper method, to refresh the content of the
+ * package list view, resetting each item to its initial
+ * unmarked display state.
+ */
+ for( content.iItem = -1; GetItem(); ) UpdateItem( NULL );
+}
+
/* $RCSfile$: end of file */
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