summaryrefslogtreecommitdiffstats
path: root/generic/ttk/ttkTreeview.c
diff options
context:
space:
mode:
authorhobbs <hobbs>2006-10-31 01:42:25 (GMT)
committerhobbs <hobbs>2006-10-31 01:42:25 (GMT)
commit397a2c9832bf618f26be267501cf49ab06a562ec (patch)
tree61d5e957eccfcba57b0dd27ebc73db085385834e /generic/ttk/ttkTreeview.c
parent18d330543869e240c2bd12fc9fbb8d5027f5cad6 (diff)
downloadtk-397a2c9832bf618f26be267501cf49ab06a562ec.zip
tk-397a2c9832bf618f26be267501cf49ab06a562ec.tar.gz
tk-397a2c9832bf618f26be267501cf49ab06a562ec.tar.bz2
* doc/ttk_Geometry.3, doc/ttk_Theme.3, doc/ttk_button.n:
* doc/ttk_checkbutton.n, doc/ttk_combobox.n, doc/ttk_dialog.n: * doc/ttk_entry.n, doc/ttk_frame.n, doc/ttk_image.n: * doc/ttk_intro.n, doc/ttk_label.n, doc/ttk_labelframe.n: * doc/ttk_menubutton.n, doc/ttk_notebook.n, doc/ttk_panedwindow.n: * doc/ttk_progressbar.n, doc/ttk_radiobutton.n, doc/ttk_scrollbar.n: * doc/ttk_separator.n, doc/ttk_sizegrip.n, doc/ttk_style.n: * doc/ttk_treeview.n, doc/ttk_widget.n,: * generic/ttk/ttk.decls, generic/ttk/ttkBlink.c: * generic/ttk/ttkButton.c, generic/ttk/ttkCache.c: * generic/ttk/ttkClamTheme.c, generic/ttk/ttkClassicTheme.c: * generic/ttk/ttkDecls.h, generic/ttk/ttkDefaultTheme.c: * generic/ttk/ttkElements.c, generic/ttk/ttkEntry.c: * generic/ttk/ttkFrame.c, generic/ttk/ttkImage.c: * generic/ttk/ttkInit.c, generic/ttk/ttkLabel.c: * generic/ttk/ttkLayout.c, generic/ttk/ttkManager.c: * generic/ttk/ttkManager.h, generic/ttk/ttkNotebook.c: * generic/ttk/ttkPanedwindow.c, generic/ttk/ttkProgress.c: * generic/ttk/ttkScale.c, generic/ttk/ttkScroll.c: * generic/ttk/ttkScrollbar.c, generic/ttk/ttkSeparator.c: * generic/ttk/ttkSquare.c, generic/ttk/ttkState.c: * generic/ttk/ttkStubInit.c, generic/ttk/ttkStubLib.c: * generic/ttk/ttkTagSet.c, generic/ttk/ttkTheme.c: * generic/ttk/ttkTheme.h, generic/ttk/ttkThemeInt.h: * generic/ttk/ttkTrace.c, generic/ttk/ttkTrack.c: * generic/ttk/ttkTreeview.c, generic/ttk/ttkWidget.c: * generic/ttk/ttkWidget.h: * library/demos/ttk_demo.tcl, library/demos/ttk_iconlib.tcl: * library/demos/ttk_repeater.tcl: * library/ttk/altTheme.tcl, library/ttk/aquaTheme.tcl: * library/ttk/button.tcl, library/ttk/clamTheme.tcl: * library/ttk/classicTheme.tcl, library/ttk/combobox.tcl: * library/ttk/cursors.tcl, library/ttk/defaults.tcl: * library/ttk/dialog.tcl, library/ttk/entry.tcl: * library/ttk/fonts.tcl, library/ttk/icons.tcl: * library/ttk/keynav.tcl, library/ttk/menubutton.tcl: * library/ttk/notebook.tcl, library/ttk/panedwindow.tcl: * library/ttk/progress.tcl, library/ttk/scale.tcl: * library/ttk/scrollbar.tcl, library/ttk/sizegrip.tcl: * library/ttk/treeview.tcl, library/ttk/ttk.tcl: * library/ttk/utils.tcl, library/ttk/winTheme.tcl: * library/ttk/xpTheme.tcl: * macosx/ttkMacOSXTheme.c: * tests/ttk/all.tcl, tests/ttk/bwidget.test, tests/ttk/combobox.test: * tests/ttk/entry.test, tests/ttk/image.test: * tests/ttk/labelframe.test, tests/ttk/layout.test: * tests/ttk/misc.test, tests/ttk/notebook.test: * tests/ttk/panedwindow.test, tests/ttk/progressbar.test: * tests/ttk/scrollbar.test, tests/ttk/treetags.test: * tests/ttk/treeview.test, tests/ttk/ttk.test, tests/ttk/validate.test: * win/ttkWinMonitor.c, win/ttkWinTheme.c, win/ttkWinXPTheme.c: First import of Ttk themed Tk widgets as branched from tile 0.7.8 * generic/tkInt.h, generic/tkWindow.c: add Ttk_Init call, copy tk classic widgets to ::tk namespace. * library/tk.tcl: add source of ttk/ttk.tcl, define $::ttk::library. * unix/Makefile.in, win/Makefile.in: add Ttk build bits * win/configure, win/configure.in: check for uxtheme.h (XP theme).
Diffstat (limited to 'generic/ttk/ttkTreeview.c')
-rw-r--r--generic/ttk/ttkTreeview.c2973
1 files changed, 2973 insertions, 0 deletions
diff --git a/generic/ttk/ttkTreeview.c b/generic/ttk/ttkTreeview.c
new file mode 100644
index 0000000..4038a5d
--- /dev/null
+++ b/generic/ttk/ttkTreeview.c
@@ -0,0 +1,2973 @@
+/*
+ * $Id: ttkTreeview.c,v 1.1 2006/10/31 01:42:26 hobbs Exp $
+ * Copyright (c) 2004, Joe English
+ *
+ * Ttk widget set: treeview widget.
+ */
+
+#include <string.h>
+#include <tk.h>
+#include "ttkTheme.h"
+#include "ttkWidget.h"
+
+#define DEF_TREE_ROWS "10"
+#define DEF_TREE_PADDING "4"
+#define DEF_COLWIDTH "200"
+
+static const int ROWHEIGHT = 24;
+static const int HEADINGHEIGHT = 24;
+static const int INDENT = 24;
+static const int HALO = 4; /* separator */
+
+#define TTK_STATE_OPEN TTK_STATE_USER1
+#define TTK_STATE_LEAF TTK_STATE_USER2
+
+#define STATE_CHANGED (0x100) /* item state option changed */
+
+/*------------------------------------------------------------------------
+ * +++ Tree items.
+ *
+ * INVARIANTS:
+ * item->children ==> item->children->parent == item
+ * item->next ==> item->next->parent == item->parent
+ * item->next ==> item->next->prev == item
+ * item->prev ==> item->prev->next == item
+ */
+
+typedef struct TreeItemRec TreeItem;
+struct TreeItemRec
+{
+ Tcl_HashEntry *entryPtr; /* Back-pointer to hash table entry */
+ TreeItem *parent; /* Parent item */
+ TreeItem *children; /* Linked list of child items */
+ TreeItem *next; /* Next sibling */
+ TreeItem *prev; /* Previous sibling */
+
+ /*
+ * Options and instance data:
+ */
+ Ttk_State state;
+ Tcl_Obj *textObj;
+ Tcl_Obj *imageObj;
+ Tcl_Obj *valuesObj;
+ Tcl_Obj *openObj;
+ Tcl_Obj *tagsObj;
+};
+
+static Tk_OptionSpec ItemOptionSpecs[] =
+{
+ {TK_OPTION_STRING, "-text", "text", "Text",
+ "", Tk_Offset(TreeItem,textObj), -1,
+ 0,0,0 },
+ {TK_OPTION_STRING, "-image", "image", "Image",
+ NULL, Tk_Offset(TreeItem,imageObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+ {TK_OPTION_STRING, "-values", "values", "Values",
+ NULL, Tk_Offset(TreeItem,valuesObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+ {TK_OPTION_BOOLEAN, "-open", "open", "Open",
+ "0", Tk_Offset(TreeItem,openObj), -1,
+ 0,0,0 },
+ {TK_OPTION_STRING, "-tags", "tags", "Tags",
+ NULL, Tk_Offset(TreeItem,tagsObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+
+ {TK_OPTION_END, 0,0,0, NULL, -1,-1, 0,0,0}
+};
+
+/* + NewItem --
+ * Allocate a new, uninitialized, unlinked item
+ */
+static TreeItem *NewItem(void)
+{
+ TreeItem *item = (TreeItem*)ckalloc(sizeof(*item));
+
+ item->entryPtr = 0;
+ item->parent = item->children = item->next = item->prev = NULL;
+
+ item->state = 0ul;
+ item->textObj = NULL;
+ item->imageObj = NULL;
+ item->valuesObj = NULL;
+ item->openObj = NULL;
+ item->tagsObj = NULL;
+
+ return item;
+}
+
+/* + FreeItem --
+ * Destroy an item
+ */
+static void FreeItem(TreeItem *item)
+{
+ if (item->textObj) { Tcl_DecrRefCount(item->textObj); }
+ if (item->imageObj) { Tcl_DecrRefCount(item->imageObj); }
+ if (item->valuesObj) { Tcl_DecrRefCount(item->valuesObj); }
+ if (item->openObj) { Tcl_DecrRefCount(item->openObj); }
+ if (item->tagsObj) { Tcl_DecrRefCount(item->tagsObj); }
+ ckfree((ClientData)item);
+}
+
+static void FreeItemCB(void *clientData) { FreeItem(clientData); }
+
+/* + DetachItem --
+ * Unlink an item from the tree.
+ */
+static void DetachItem(TreeItem *item)
+{
+ if (item->parent && item->parent->children == item)
+ item->parent->children = item->next;
+ if (item->prev)
+ item->prev->next = item->next;
+ if (item->next)
+ item->next->prev = item->prev;
+ item->next = item->prev = item->parent = NULL;
+}
+
+/* + InsertItem --
+ * Insert an item into the tree after the specified item.
+ *
+ * Preconditions:
+ * + item is currently detached
+ * + prev != NULL ==> prev->parent == parent.
+ */
+static void InsertItem(TreeItem *parent, TreeItem *prev, TreeItem *item)
+{
+ item->parent = parent;
+ item->prev = prev;
+ if (prev) {
+ item->next = prev->next;
+ prev->next = item;
+ } else {
+ item->next = parent->children;
+ parent->children = item;
+ }
+ if (item->next) {
+ item->next->prev = item;
+ }
+}
+
+/* + NextPreorder --
+ * Return the next item in preorder traversal order.
+ */
+
+static TreeItem *NextPreorder(TreeItem *item)
+{
+ if (item->children)
+ return item->children;
+ while (!item->next) {
+ item = item->parent;
+ if (!item)
+ return 0;
+ }
+ return item->next;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Display items and tag options.
+ */
+
+typedef struct {
+ Tcl_Obj *textObj; /* taken from item / data cell */
+ Tcl_Obj *imageObj; /* taken from item */
+ Tcl_Obj *anchorObj; /* from column */
+ Tcl_Obj *backgroundObj; /* remainder from tag */
+ Tcl_Obj *foregroundObj;
+ Tcl_Obj *fontObj;
+} DisplayItem;
+
+static Tk_OptionSpec TagOptionSpecs[] =
+{
+ {TK_OPTION_STRING, "-text", "text", "Text",
+ NULL, Tk_Offset(DisplayItem,textObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+ {TK_OPTION_STRING, "-image", "image", "Image",
+ NULL, Tk_Offset(DisplayItem,imageObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+ {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
+ NULL, Tk_Offset(DisplayItem,anchorObj), -1,
+ TK_OPTION_NULL_OK, 0, GEOMETRY_CHANGED},
+ {TK_OPTION_COLOR, "-background", "windowColor", "WindowColor",
+ NULL, Tk_Offset(DisplayItem,backgroundObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+ {TK_OPTION_COLOR, "-foreground", "textColor", "TextColor",
+ NULL, Tk_Offset(DisplayItem,foregroundObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+ {TK_OPTION_FONT, "-font", "font", "Font",
+ NULL, Tk_Offset(DisplayItem,fontObj), -1,
+ TK_OPTION_NULL_OK,0,GEOMETRY_CHANGED },
+
+ {TK_OPTION_END, 0,0,0, NULL, -1,-1, 0,0,0}
+};
+
+
+
+/*------------------------------------------------------------------------
+ * +++ Columns.
+ *
+ * There are separate option tables associated with the column record:
+ * ColumnOptionSpecs is for configuring the column,
+ * and HeadingOptionSpecs is for drawing headings.
+ */
+typedef struct {
+ int width; /* Column width, in pixels */
+ Tcl_Obj *idObj; /* Column identifier, from -columns option */
+
+ Tcl_Obj *anchorObj; /* -anchor for cell data */
+
+ /* Column heading data:
+ */
+ Tcl_Obj *headingObj; /* Heading label */
+ Tcl_Obj *headingImageObj; /* Heading image */
+ Tcl_Obj *headingAnchorObj; /* -anchor for heading label */
+ Tcl_Obj *headingCommandObj; /* Command to execute */
+ Tcl_Obj *headingStateObj; /* @@@ testing ... */
+ Ttk_State headingState; /* ... */
+
+ /* Temporary storage for cell data
+ */
+ Tcl_Obj *data;
+} TreeColumn;
+
+static void InitColumn(TreeColumn *column)
+{
+ column->width = 200;
+ column->idObj = 0;
+ column->anchorObj = 0;
+
+ column->headingState = 0;
+ column->headingObj = 0;
+ column->headingImageObj = 0;
+ column->headingAnchorObj = 0;
+ column->headingStateObj = 0;
+ column->headingCommandObj = 0;
+
+ column->data = 0;
+}
+
+static void FreeColumn(TreeColumn *column) /* @@@ rename */
+{
+ if (column->idObj) { Tcl_DecrRefCount(column->idObj); }
+ if (column->anchorObj) { Tcl_DecrRefCount(column->anchorObj); }
+
+ if (column->headingObj) { Tcl_DecrRefCount(column->headingObj); }
+ if (column->headingImageObj) { Tcl_DecrRefCount(column->headingImageObj); }
+ if (column->headingAnchorObj) { Tcl_DecrRefCount(column->headingAnchorObj); }
+ if (column->headingStateObj) { Tcl_DecrRefCount(column->headingStateObj); }
+ if (column->headingCommandObj) { Tcl_DecrRefCount(column->headingCommandObj); }
+
+ /* Don't touch column->data, it's scratch storage */
+}
+
+static Tk_OptionSpec ColumnOptionSpecs[] =
+{
+ {TK_OPTION_INT, "-width", "width", "Width",
+ DEF_COLWIDTH, -1, Tk_Offset(TreeColumn,width),
+ 0,0,GEOMETRY_CHANGED },
+ {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
+ "w", Tk_Offset(TreeColumn,anchorObj), -1,
+ 0,0,0 },
+ {TK_OPTION_STRING, "-id", "id", "ID",
+ NULL, Tk_Offset(TreeColumn,idObj), -1,
+ TK_OPTION_NULL_OK,0,READONLY_OPTION },
+ {TK_OPTION_END, 0,0,0, NULL, -1,-1, 0,0,0}
+};
+
+static Tk_OptionSpec HeadingOptionSpecs[] =
+{
+ {TK_OPTION_STRING, "-text", "text", "Text",
+ "", Tk_Offset(TreeColumn,headingObj), -1,
+ 0,0,0 },
+ {TK_OPTION_STRING, "-image", "image", "Image",
+ "", Tk_Offset(TreeColumn,headingImageObj), -1,
+ 0,0,0 },
+ {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
+ "center", Tk_Offset(TreeColumn,headingAnchorObj), -1,
+ 0,0,0 },
+ {TK_OPTION_STRING, "-command", "", "",
+ "", Tk_Offset(TreeColumn,headingCommandObj), -1,
+ TK_OPTION_NULL_OK,0,0 },
+ {TK_OPTION_STRING, "state", "", "",
+ "", Tk_Offset(TreeColumn,headingStateObj), -1,
+ 0,0,STATE_CHANGED },
+ {TK_OPTION_END, 0,0,0, NULL, -1,-1, 0,0,0}
+};
+
+/*------------------------------------------------------------------------
+ * +++ -show option:
+ * TODO: Implement SHOW_BRANCHES.
+ */
+
+#define SHOW_TREE (0x1) /* Show tree column? */
+#define SHOW_HEADINGS (0x2) /* Show heading row? */
+
+#define DEFAULT_SHOW "tree headings"
+
+static const char *showStrings[] = {
+ "tree", "headings", NULL
+};
+
+static int GetEnumSetFromObj(
+ Tcl_Interp *interp,
+ Tcl_Obj *objPtr,
+ const char *table[],
+ unsigned *resultPtr)
+{
+ unsigned result = 0;
+ int i, objc;
+ Tcl_Obj **objv;
+
+ if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK)
+ return TCL_ERROR;
+
+ for (i = 0; i < objc; ++i) {
+ int index;
+ if (TCL_OK != Tcl_GetIndexFromObj(
+ interp, objv[i], table, "value", TCL_EXACT, &index))
+ {
+ return TCL_ERROR;
+ }
+ result |= (1 << index);
+ }
+
+ *resultPtr = result;
+ return TCL_OK;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Treeview widget record.
+ *
+ * Dependencies:
+ * columns, columnNames: -columns
+ * displayColumns: -columns, -displaycolumns
+ */
+typedef struct
+{
+ /* Resources acquired at initialization-time:
+ */
+ Tk_OptionTable itemOptionTable;
+ Tk_OptionTable columnOptionTable;
+ Tk_OptionTable headingOptionTable;
+ Tk_OptionTable tagOptionTable;
+ Tk_BindingTable bindingTable;
+ Ttk_TagTable tagTable;
+
+ /* Acquired in GetLayout hook:
+ */
+ Ttk_Layout itemLayout;
+ Ttk_Layout cellLayout;
+ Ttk_Layout headingLayout;
+ Ttk_Layout rowLayout;
+
+ /* Tree data:
+ */
+ Tcl_HashTable items; /* Map: item name -> item */
+ int serial; /* Next item # for autogenerated names */
+ TreeItem *root; /* Root item */
+
+ TreeColumn column0; /* Column options for display column #0 */
+ TreeColumn *columns; /* Array of column options for data columns */
+
+ TreeItem *focus; /* Current focus item */
+
+ /* Widget options:
+ */
+ Tcl_Obj *columnsObj; /* List of symbolic column names */
+ Tcl_Obj *displayColumnsObj; /* List of columns to display */
+
+ Tcl_Obj *heightObj; /* height (rows) */
+ Tcl_Obj *paddingObj; /* internal padding */
+
+ Tcl_Obj *showObj; /* -show list */
+ Tcl_Obj *selectModeObj; /* -selectmode option */
+
+ Scrollable yscroll;
+ ScrollHandle yscrollHandle;
+
+ /* Derived resources:
+ */
+ Tcl_HashTable columnNames; /* Map: column name -> column index */
+ int nColumns; /* #columns */
+ unsigned showFlags; /* bitmask of subparts to display */
+
+ TreeColumn **displayColumns; /* List of columns for display (incl tree) */
+ int nDisplayColumns; /* #display columns */
+ Ttk_Box headingArea; /* Display area for column headings */
+ Ttk_Box treeArea; /* Display area for tree */
+
+} TreePart;
+
+typedef struct {
+ WidgetCore core;
+ TreePart tree;
+} Treeview;
+
+#define USER_MASK 0x0100
+#define COLUMNS_CHANGED (USER_MASK)
+#define DCOLUMNS_CHANGED (USER_MASK<<1)
+#define SCROLLCMD_CHANGED (USER_MASK<<2)
+#define SHOW_CHANGED (USER_MASK<<3)
+
+static const char *SelectModeStrings[] = { "none", "browse", "extended", NULL };
+
+static Tk_OptionSpec TreeviewOptionSpecs[] =
+{
+ WIDGET_TAKES_FOCUS,
+
+ {TK_OPTION_STRING, "-columns", "columns", "Columns",
+ "", Tk_Offset(Treeview,tree.columnsObj), -1,
+ 0,0,COLUMNS_CHANGED | GEOMETRY_CHANGED /*| READONLY_OPTION*/ },
+ {TK_OPTION_STRING, "-displaycolumns","displayColumns","DisplayColumns",
+ "", Tk_Offset(Treeview,tree.displayColumnsObj), -1,
+ 0,0,DCOLUMNS_CHANGED | GEOMETRY_CHANGED },
+ {TK_OPTION_STRING, "-show", "show", "Show",
+ DEFAULT_SHOW, Tk_Offset(Treeview,tree.showObj), -1,
+ 0,0,SHOW_CHANGED | GEOMETRY_CHANGED },
+
+ {TK_OPTION_STRING_TABLE, "-selectmode", "selectMode", "SelectMode",
+ "extended", Tk_Offset(Treeview,tree.selectModeObj), -1,
+ 0,(ClientData)SelectModeStrings,0 },
+
+ {TK_OPTION_PIXELS, "-height", "height", "Height",
+ DEF_TREE_ROWS, Tk_Offset(Treeview,tree.heightObj), -1,
+ 0,0,GEOMETRY_CHANGED},
+ {TK_OPTION_STRING, "-padding", "padding", "Pad",
+ DEF_TREE_PADDING, Tk_Offset(Treeview,tree.paddingObj), -1,
+ TK_OPTION_NULL_OK,0,GEOMETRY_CHANGED },
+
+ {TK_OPTION_STRING, "-yscrollcommand", "yScrollCommand", "ScrollCommand",
+ NULL, -1, Tk_Offset(Treeview, tree.yscroll.scrollCmd),
+ TK_OPTION_NULL_OK, 0, SCROLLCMD_CHANGED},
+
+ WIDGET_INHERIT_OPTIONS(CoreOptionSpecs)
+};
+
+/*------------------------------------------------------------------------
+ * +++ Utilities.
+ */
+typedef void (*HashEntryIterator)(void *hashValue);
+
+static void foreachHashEntry(Tcl_HashTable *ht, HashEntryIterator func)
+{
+ Tcl_HashSearch search;
+ Tcl_HashEntry *entryPtr = Tcl_FirstHashEntry(ht, &search);
+ while (entryPtr != NULL) {
+ func(Tcl_GetHashValue(entryPtr));
+ entryPtr = Tcl_NextHashEntry(&search);
+ }
+}
+
+/* + unshare(objPtr) --
+ * Ensure that a Tcl_Obj * has refcount 1 -- either return objPtr
+ * itself, or a duplicated copy.
+ */
+static Tcl_Obj *unshare(Tcl_Obj *objPtr)
+{
+ if (Tcl_IsShared(objPtr)) {
+ Tcl_Obj *newObj = Tcl_DuplicateObj(objPtr);
+ Tcl_DecrRefCount(objPtr);
+ Tcl_IncrRefCount(newObj);
+ return newObj;
+ }
+ return objPtr;
+}
+
+/* DisplayLayout --
+ * Rebind, place, and draw a layout + object combination.
+ */
+static void DisplayLayout(
+ Ttk_Layout layout, void *recordPtr, Ttk_State state, Ttk_Box b, Drawable d)
+{
+ Ttk_RebindSublayout(layout, recordPtr);
+ Ttk_PlaceLayout(layout, state, b);
+ Ttk_DrawLayout(layout, state, d);
+}
+
+/* + ColumnIndex --
+ * Maps column identifier to column index.
+ * Returns: -1 if not found, column index otherwise.
+ * Leaves an error message in interp->result on error.
+ *
+ * Column IDs may be specified by name or as a number.
+ */
+static int ColumnIndex(Tcl_Interp *interp, Treeview *tv, Tcl_Obj *columnIDObj)
+{
+ Tcl_HashEntry *entryPtr;
+ int columnIndex;
+
+ /* Check for named column:
+ */
+ entryPtr = Tcl_FindHashEntry(
+ &tv->tree.columnNames, Tcl_GetString(columnIDObj));
+ if (entryPtr) {
+ return (int)Tcl_GetHashValue(entryPtr);
+ }
+
+ /* Check for number:
+ */
+ if (Tcl_GetIntFromObj(NULL, columnIDObj, &columnIndex) == TCL_OK) {
+ if (columnIndex < 0 || columnIndex >= tv->tree.nColumns) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp,
+ "Column index ",
+ Tcl_GetString(columnIDObj),
+ " out of bounds",
+ NULL);
+ return -1;
+ }
+
+ return columnIndex;
+ }
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp,
+ "Invalid column index ", Tcl_GetString(columnIDObj),
+ NULL);
+ return -1;
+}
+
+/* + FindItem --
+ * Locates the item with the specified identifier in the tree.
+ * If there is no such item, leaves an error message in interp.
+ */
+static TreeItem *FindItem(
+ Tcl_Interp *interp, Treeview *tv, Tcl_Obj *itemNameObj)
+{
+ const char *itemName = Tcl_GetString(itemNameObj);
+ Tcl_HashEntry *entryPtr = Tcl_FindHashEntry(&tv->tree.items, itemName);
+
+ if (!entryPtr) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp, "Item ", itemName, " not found", NULL);
+ return 0;
+ }
+ return (TreeItem*)Tcl_GetHashValue(entryPtr);
+}
+
+/* + GetItemListFromObj --
+ * Parse a Tcl_Obj * as a list of items.
+ * Returns a NULL-terminated array of items; result must
+ * be ckfree()d. On error, returns NULL and leaves an error
+ * message in interp.
+ */
+
+static TreeItem **GetItemListFromObj(
+ Tcl_Interp *interp, Treeview *tv, Tcl_Obj *objPtr)
+{
+ TreeItem **items;
+ Tcl_Obj **elements;
+ int i, nElements;
+
+ if (Tcl_ListObjGetElements(interp,objPtr,&nElements,&elements) != TCL_OK) {
+ return NULL;
+ }
+
+ items = (TreeItem**)ckalloc((nElements + 1)*sizeof(TreeItem*));
+ for (i = 0; i < nElements; ++i) {
+ items[i] = FindItem(interp, tv, elements[i]);
+ if (!items[i]) {
+ ckfree((ClientData)items);
+ return NULL;
+ }
+ }
+ items[i] = NULL;
+ return items;
+}
+
+/* + ItemName --
+ * Returns the item's ID.
+ */
+static const char *ItemName(Treeview *tv, TreeItem *item)
+{
+ return Tcl_GetHashKey(&tv->tree.items, item->entryPtr);
+}
+
+/* + ItemID --
+ * Returns a fresh Tcl_Obj * (refcount 0) holding the
+ * item identifier of the specified item.
+ */
+static Tcl_Obj *ItemID(Treeview *tv, TreeItem *item)
+{
+ return Tcl_NewStringObj(ItemName(tv, item), -1);
+}
+
+/* + FindColumn --
+ */
+static TreeColumn *FindColumn(
+ Tcl_Interp *interp, Treeview *tv, Tcl_Obj *columnIDObj)
+{
+ int column;
+
+ if (sscanf(Tcl_GetString(columnIDObj), "#%d", &column) == 1)
+ { /* Display column specification, #n */
+ if (column >= 0 && column < tv->tree.nDisplayColumns) {
+ return tv->tree.displayColumns[column];
+ }
+ /* else */
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp,
+ "Column ", Tcl_GetString(columnIDObj), " out of range",
+ NULL);
+ return NULL;
+ }
+
+ column = ColumnIndex(interp, tv, columnIDObj);
+ if (column >= 0)
+ return tv->tree.columns + column;
+ return 0;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Column configuration.
+ */
+
+/* + TreeviewFreeColumns --
+ * Free column data.
+ */
+static void TreeviewFreeColumns(Treeview *tv)
+{
+ int i;
+
+ Tcl_DeleteHashTable(&tv->tree.columnNames);
+ Tcl_InitHashTable(&tv->tree.columnNames, TCL_STRING_KEYS);
+
+ if (tv->tree.columns) {
+ for (i = 0; i < tv->tree.nColumns; ++i)
+ FreeColumn(tv->tree.columns + i);
+ ckfree((ClientData)tv->tree.columns);
+ tv->tree.columns = 0;
+ }
+}
+
+/* + TreeviewInitColumns --
+ * Initialize column data when -columns changes.
+ * Returns: TCL_OK or TCL_ERROR;
+ */
+static int TreeviewInitColumns(Tcl_Interp *interp, Treeview *tv)
+{
+ Tcl_Obj **columns;
+ int i, ncols;
+
+ if (Tcl_ListObjGetElements(
+ interp, tv->tree.columnsObj, &ncols, &columns) != TCL_OK)
+ {
+ return TCL_ERROR;
+ }
+
+ /*
+ * Free old values:
+ */
+ TreeviewFreeColumns(tv);
+
+ /*
+ * Initialize columns array and columnNames hash table:
+ */
+ tv->tree.nColumns = ncols;
+ tv->tree.columns =
+ (TreeColumn*)ckalloc(tv->tree.nColumns * sizeof(TreeColumn));
+
+ for (i = 0; i < ncols; ++i) {
+ int isNew;
+ Tcl_Obj *columnName = Tcl_DuplicateObj(columns[i]);
+
+ Tcl_HashEntry *entryPtr = Tcl_CreateHashEntry(
+ &tv->tree.columnNames, Tcl_GetString(columnName), &isNew);
+ Tcl_SetHashValue(entryPtr, i);
+
+ InitColumn(tv->tree.columns + i);
+ Tk_InitOptions(
+ interp, (ClientData)(tv->tree.columns + i),
+ tv->tree.columnOptionTable, tv->core.tkwin);
+ Tk_InitOptions(
+ interp, (ClientData)(tv->tree.columns + i),
+ tv->tree.headingOptionTable, tv->core.tkwin);
+ Tcl_IncrRefCount(columnName);
+ tv->tree.columns[i].idObj = columnName;
+ }
+
+ return TCL_OK;
+}
+
+/* + TreeviewInitDisplayColumns --
+ * Initializes the 'displayColumns' array.
+ *
+ * Note that displayColumns[0] is always the tree column,
+ * even when SHOW_TREE is not set.
+ *
+ * @@@ TODO: disallow duplicated columns
+ */
+static int TreeviewInitDisplayColumns(Tcl_Interp *interp, Treeview *tv)
+{
+ Tcl_Obj **dcolumns;
+ int index, ndcols;
+ TreeColumn **displayColumns = 0;
+
+ if (Tcl_ListObjGetElements(interp,
+ tv->tree.displayColumnsObj, &ndcols, &dcolumns) != TCL_OK) {
+ return TCL_ERROR;
+ }
+
+ if (ndcols == 0) {
+ ndcols = tv->tree.nColumns;
+ displayColumns = (TreeColumn**)ckalloc((ndcols+1)*sizeof(TreeColumn*));
+ for (index = 0; index < ndcols; ++index) {
+ displayColumns[index+1] = tv->tree.columns + index;
+ }
+ } else {
+ displayColumns = (TreeColumn**)ckalloc((ndcols+1)*sizeof(TreeColumn*));
+ for (index = 0; index < ndcols; ++index) {
+ int columnIndex = ColumnIndex(interp, tv, dcolumns[index]);
+ if (columnIndex == -1) {
+ ckfree((ClientData)displayColumns);
+ return TCL_ERROR;
+ }
+ displayColumns[index+1] = tv->tree.columns + columnIndex;
+ }
+ }
+ displayColumns[0] = &tv->tree.column0;
+
+ if (tv->tree.displayColumns)
+ ckfree((ClientData)tv->tree.displayColumns);
+ tv->tree.displayColumns = displayColumns;
+ tv->tree.nDisplayColumns = ndcols + 1;
+
+ return TCL_OK;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Event handlers.
+ */
+
+static TreeItem *IdentifyItem(Treeview *tv,int y,Ttk_Box *itemPos); /*forward*/
+
+const unsigned int TreeviewBindEventMask =
+ KeyPressMask|KeyReleaseMask
+ | ButtonPressMask|ButtonReleaseMask
+ | PointerMotionMask|ButtonMotionMask
+ | VirtualEventMask
+ ;
+
+static void TreeviewBindEventProc(void *clientData, XEvent *event)
+{
+ Treeview *tv = clientData;
+ TreeItem *item = NULL;
+ Ttk_Box unused;
+ void *taglist;
+ int nTags;
+
+ /*
+ * Figure out where to deliver the event.
+ */
+
+ switch (event->type)
+ {
+ case KeyPress:
+ case KeyRelease:
+ case VirtualEvent:
+ item = tv->tree.focus;
+ break;
+ case ButtonPress:
+ case ButtonRelease:
+ item = IdentifyItem(tv, event->xbutton.y, &unused);
+ break;
+ case MotionNotify:
+ item = IdentifyItem(tv, event->xmotion.y, &unused);
+ break;
+ default:
+ break;
+ }
+
+ if (!item) {
+ return;
+ }
+
+ /* ASSERT: Ttk_GetTagListFromObj returns TCL_OK. */
+ Ttk_GetTagListFromObj(NULL, tv->tree.tagTable, item->tagsObj,
+ &nTags, &taglist);
+
+ /*
+ * Fire binding:
+ */
+ Tcl_Preserve(clientData);
+ Tk_BindEvent(tv->tree.bindingTable, event, tv->core.tkwin, nTags, taglist);
+ Tcl_Release(clientData);
+
+ Ttk_FreeTagList(taglist);
+}
+
+/*------------------------------------------------------------------------
+ * +++ Initialization and cleanup.
+ */
+
+static int TreeviewInitialize(Tcl_Interp *interp, void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ int unused;
+
+ tv->tree.itemOptionTable =
+ Tk_CreateOptionTable(interp, ItemOptionSpecs);
+ tv->tree.columnOptionTable =
+ Tk_CreateOptionTable(interp, ColumnOptionSpecs);
+ tv->tree.headingOptionTable =
+ Tk_CreateOptionTable(interp, HeadingOptionSpecs);
+ tv->tree.tagOptionTable =
+ Tk_CreateOptionTable(interp, TagOptionSpecs);
+
+ tv->tree.tagTable = Ttk_CreateTagTable(
+ tv->tree.tagOptionTable, sizeof(DisplayItem));
+ tv->tree.bindingTable = Tk_CreateBindingTable(interp);
+ Tk_CreateEventHandler(tv->core.tkwin,
+ TreeviewBindEventMask, TreeviewBindEventProc, tv);
+
+ tv->tree.itemLayout
+ = tv->tree.cellLayout
+ = tv->tree.headingLayout
+ = tv->tree.rowLayout
+ = 0;
+
+ Tcl_InitHashTable(&tv->tree.columnNames, TCL_STRING_KEYS);
+ tv->tree.nColumns = tv->tree.nDisplayColumns = 0;
+ tv->tree.columns = NULL;
+ tv->tree.displayColumns = NULL;
+ tv->tree.showFlags = ~0;
+
+ InitColumn(&tv->tree.column0);
+ Tk_InitOptions(
+ interp, (ClientData)(&tv->tree.column0),
+ tv->tree.columnOptionTable, tv->core.tkwin);
+ Tk_InitOptions(
+ interp, (ClientData)(&tv->tree.column0),
+ tv->tree.headingOptionTable, tv->core.tkwin);
+
+ Tcl_InitHashTable(&tv->tree.items, TCL_STRING_KEYS);
+ tv->tree.serial = 0;
+
+ tv->tree.focus = 0;
+
+ /* Create root item "":
+ */
+ tv->tree.root = NewItem();
+ Tk_InitOptions(interp, (ClientData)tv->tree.root,
+ tv->tree.itemOptionTable, tv->core.tkwin);
+ tv->tree.root->entryPtr = Tcl_CreateHashEntry(&tv->tree.items, "", &unused);
+ Tcl_SetHashValue(tv->tree.root->entryPtr, tv->tree.root);
+
+ /* Scroll handles:
+ */
+ tv->tree.yscrollHandle = CreateScrollHandle(&tv->core, &tv->tree.yscroll);
+
+ return TCL_OK;
+}
+
+static void TreeviewCleanup(void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+
+ Tk_DeleteEventHandler(tv->core.tkwin,
+ TreeviewBindEventMask, TreeviewBindEventProc, tv);
+ Tk_DeleteBindingTable(tv->tree.bindingTable);
+ Ttk_DeleteTagTable(tv->tree.tagTable);
+
+ if (tv->tree.itemLayout) Ttk_FreeLayout(tv->tree.itemLayout);
+ if (tv->tree.cellLayout) Ttk_FreeLayout(tv->tree.cellLayout);
+ if (tv->tree.headingLayout) Ttk_FreeLayout(tv->tree.headingLayout);
+ if (tv->tree.rowLayout) Ttk_FreeLayout(tv->tree.rowLayout);
+
+ TreeviewFreeColumns(tv);
+
+ if (tv->tree.displayColumns)
+ Tcl_Free((ClientData)tv->tree.displayColumns);
+
+ foreachHashEntry(&tv->tree.items, FreeItemCB);
+ Tcl_DeleteHashTable(&tv->tree.items);
+
+ FreeScrollHandle(tv->tree.yscrollHandle);
+}
+
+/* + TreeviewConfigure --
+ * Configuration widget hook.
+ *
+ * BUG: If user sets -columns and -displaycolumns, but -displaycolumns
+ * has an error, the widget is left in an inconsistent state.
+ */
+static int
+TreeviewConfigure(Tcl_Interp *interp, void *recordPtr, int mask)
+{
+ Treeview *tv = recordPtr;
+ unsigned showFlags = tv->tree.showFlags;
+
+ if (mask & COLUMNS_CHANGED) {
+ if (TreeviewInitColumns(interp, tv) != TCL_OK)
+ return TCL_ERROR;
+ mask |= DCOLUMNS_CHANGED;
+ }
+ if (mask & DCOLUMNS_CHANGED) {
+ if (TreeviewInitDisplayColumns(interp, tv) != TCL_OK)
+ return TCL_ERROR;
+ }
+ if (mask & SCROLLCMD_CHANGED) {
+ ScrollbarUpdateRequired(tv->tree.yscrollHandle);
+ }
+
+ if ( (mask & SHOW_CHANGED)
+ && GetEnumSetFromObj(
+ interp,tv->tree.showObj,showStrings,&showFlags) != TCL_OK)
+ {
+ return TCL_ERROR;
+ }
+
+ if (CoreConfigure(interp, recordPtr, mask) != TCL_OK) {
+ return TCL_ERROR;
+ }
+
+ tv->tree.showFlags = showFlags;
+ return TCL_OK;
+}
+
+/* + ConfigureItem --
+ * Set item options.
+ */
+static int ConfigureItem(
+ Tcl_Interp *interp, Treeview *tv, TreeItem *item,
+ int objc, Tcl_Obj *const objv[])
+{
+ Tk_SavedOptions savedOptions;
+
+ if (Tk_SetOptions(interp, (ClientData)item, tv->tree.itemOptionTable,
+ objc, objv, tv->core.tkwin,&savedOptions,0) != TCL_OK)
+ {
+ return TCL_ERROR;
+ }
+
+ /* Make sure that -values is a valid list:
+ */
+ if (item->valuesObj) {
+ int unused;
+ if (Tcl_ListObjLength(interp, item->valuesObj, &unused) != TCL_OK)
+ goto error;
+ }
+
+ /* Validate -image option.
+ * @@@ TODO: keep images array around
+ */
+ if (item->imageObj) {
+ Tk_Image *images = NULL;
+ if (GetImageList(interp, &tv->core, item->imageObj, &images) != TCL_OK)
+ goto error;
+ if (images)
+ FreeImageList(images);
+ }
+
+ /* Keep TTK_STATE_OPEN flag in sync with item->openObj.
+ * We use both a state flag and a Tcl_Obj* resource so elements
+ * can access the value in either way.
+ */
+ if (item->openObj) {
+ int isOpen;
+ if (Tcl_GetBooleanFromObj(interp, item->openObj, &isOpen) != TCL_OK)
+ goto error;
+ if (isOpen)
+ item->state |= TTK_STATE_OPEN;
+ else
+ item->state &= ~TTK_STATE_OPEN;
+ }
+
+ /* Make sure -tags is a valid list
+ * (side effect: may create new tags)
+ */
+ if (item->tagsObj) {
+ void *taglist;
+ int nTags;
+ if (Ttk_GetTagListFromObj(interp, tv->tree.tagTable, item->tagsObj,
+ &nTags, &taglist) != TCL_OK)
+ {
+ goto error;
+ }
+ Ttk_FreeTagList(taglist);
+ }
+
+ /* All OK.
+ */
+ Tk_FreeSavedOptions(&savedOptions);
+ TtkRedisplayWidget(&tv->core);
+ return TCL_OK;
+
+error:
+ Tk_RestoreSavedOptions(&savedOptions);
+ return TCL_ERROR;
+}
+
+/* + ConfigureColumn --
+ * Set column options.
+ */
+static int ConfigureColumn(
+ Tcl_Interp *interp, Treeview *tv, TreeColumn *column,
+ int objc, Tcl_Obj *const objv[])
+{
+ Tk_SavedOptions savedOptions;
+ int mask;
+
+ if (Tk_SetOptions(interp, (ClientData)column,
+ tv->tree.columnOptionTable, objc, objv, tv->core.tkwin,
+ &savedOptions,&mask) != TCL_OK)
+ {
+ return TCL_ERROR;
+ }
+
+ if (mask & READONLY_OPTION) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp, "Attempt to change read-only option", NULL);
+ goto error;
+ }
+
+ /* Propagate column width changes to overall widget request width,
+ * but only if the widget is currently unmapped, in order to prevent
+ * geometry jumping during interactive column resize.
+ */
+ if (mask & GEOMETRY_CHANGED && !Tk_IsMapped(tv->core.tkwin)) {
+ TtkResizeWidget(&tv->core);
+ }
+ TtkRedisplayWidget(&tv->core);
+
+ Tk_FreeSavedOptions(&savedOptions);
+ return TCL_OK;
+
+error:
+ Tk_RestoreSavedOptions(&savedOptions);
+ return TCL_ERROR;
+}
+
+/* + ConfigureHeading --
+ * Set heading options.
+ */
+static int ConfigureHeading(
+ Tcl_Interp *interp, Treeview *tv, TreeColumn *column,
+ int objc, Tcl_Obj *const objv[])
+{
+ Tk_SavedOptions savedOptions;
+ int mask;
+
+ if (Tk_SetOptions(interp, (ClientData)column,
+ tv->tree.headingOptionTable, objc, objv, tv->core.tkwin,
+ &savedOptions,&mask) != TCL_OK)
+ {
+ return TCL_ERROR;
+ }
+
+ /* @@@ testing ... */
+ if ((mask & STATE_CHANGED) && column->headingStateObj) {
+ Ttk_StateSpec stateSpec;
+ if (Ttk_GetStateSpecFromObj(
+ interp, column->headingStateObj, &stateSpec) != TCL_OK)
+ {
+ goto error;
+ }
+ column->headingState = Ttk_ModifyState(column->headingState,&stateSpec);
+ Tcl_DecrRefCount(column->headingStateObj);
+ column->headingStateObj = Ttk_NewStateSpecObj(column->headingState,0);
+ Tcl_IncrRefCount(column->headingStateObj);
+ }
+
+ TtkRedisplayWidget(&tv->core);
+ Tk_FreeSavedOptions(&savedOptions);
+ return TCL_OK;
+
+error:
+ Tk_RestoreSavedOptions(&savedOptions);
+ return TCL_ERROR;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Geometry routines.
+ */
+
+/* + CountRows --
+ * Count the number of viewable items.
+ */
+static int CountRows(TreeItem *item)
+{
+ int height = 1;
+
+ if (item->state & TTK_STATE_OPEN) {
+ TreeItem *child = item->children;
+ while (child) {
+ height += CountRows(child);
+ child = child->next;
+ }
+ }
+ return height;
+}
+
+/* + TreeWidth --
+ * Compute the requested tree width from the sum of visible column widths.
+ */
+static int TreeWidth(Treeview *tv)
+{
+ int i = (tv->tree.showFlags&SHOW_TREE) ? 0 : 1;
+ int width = 0;
+
+ while (i < tv->tree.nDisplayColumns) {
+ width += tv->tree.displayColumns[i++]->width;
+ }
+ return width;
+}
+
+/* + PlaceColumns -
+ * Adjust final column width to fill available space.
+ * @@@ NB: still not right -- see paned.c for correct algorithm
+ */
+static void PlaceColumns(Treeview *tv, int availableWidth)
+{
+# define MIN_WIDTH 24
+ int colno = (tv->tree.showFlags & SHOW_TREE) ? 0 : 1;
+ TreeColumn *column = tv->tree.displayColumns[colno];
+
+ while (++colno < tv->tree.nDisplayColumns) {
+ availableWidth -= column->width;
+ column = tv->tree.displayColumns[colno];
+ }
+ column->width = availableWidth;
+ if (column->width < MIN_WIDTH) {
+ column->width = MIN_WIDTH;
+ }
+}
+
+/* + IdentifyRow --
+ * Recursive search for item at specified y position.
+ * Main work routine for IdentifyItem(()
+ */
+static TreeItem *IdentifyRow(
+ TreeItem *item, /* where to start search */
+ Ttk_Box *bp, /* Scan position */
+ int y) /* target y coordinate */
+{
+ while (item) {
+ int next_ypos = bp->y + ROWHEIGHT;
+ if (bp->y <= y && y <= next_ypos) {
+ bp->height = ROWHEIGHT;
+ return item;
+ }
+ bp->y = next_ypos;
+ if (item->state & TTK_STATE_OPEN) {
+ TreeItem *subitem = IdentifyRow(item->children, bp, y);
+ if (subitem) {
+ bp->x += INDENT;
+ bp->width -= INDENT;
+ return subitem;
+ }
+ }
+ item = item->next;
+ }
+ return 0;
+}
+
+/* + IdentifyItem --
+ * Locate the item at the specified y position, if any.
+ * On return, *itemPos holds the parcel of the tree item.
+ */
+static TreeItem *IdentifyItem(Treeview *tv, int y, Ttk_Box *itemPos)
+{
+ *itemPos = Ttk_MakeBox(
+ tv->tree.treeArea.x,
+ tv->tree.treeArea.y - tv->tree.yscroll.first * ROWHEIGHT,
+ tv->tree.column0.width,
+ ROWHEIGHT);
+ return IdentifyRow(tv->tree.root->children, itemPos, y);
+}
+
+/* + IdentifyDisplayColumn --
+ * Returns the display column number at the specified x position,
+ * or -1 if x is outside any columns.
+ */
+static int IdentifyDisplayColumn(Treeview *tv, int x, int *x1)
+{
+ int colno = (tv->tree.showFlags & SHOW_TREE) ? 0 : 1;
+ int xpos = tv->tree.treeArea.x;
+
+ while (colno < tv->tree.nDisplayColumns) {
+ TreeColumn *column = tv->tree.displayColumns[colno];
+ int next_xpos = xpos + column->width;
+ if (xpos <= x && x <= next_xpos + HALO) {
+ *x1 = next_xpos;
+ return colno;
+ }
+ ++colno;
+ xpos = next_xpos;
+ }
+
+ return -1;
+}
+
+/* + SubtreeHeight --
+ * Returns the height of the visible subtree rooted at item.
+ */
+#define ItemHeight(item) (ROWHEIGHT) /* TBFIXED */
+static int SubtreeHeight(TreeItem *item)
+{
+ int height = ItemHeight(item);
+ if (item->state & TTK_STATE_OPEN) {
+ TreeItem *child = item->children;
+ while (child) {
+ height += SubtreeHeight(child);
+ child = child->next;
+ }
+ }
+ return height;
+}
+
+/* + ItemYPosition --
+ * Returns Y position of specified item relative to root of tree,
+ * -1 if item is not viewable.
+ */
+static int ItemYPosition(Treeview *tv, TreeItem *p)
+{
+ TreeItem *root = tv->tree.root;
+ int ypos = 0;
+
+ for (;;) {
+ if (p->prev) {
+ p = p->prev;
+ ypos += SubtreeHeight(p);
+ } else {
+ p = p->parent;
+ if (!(p && (p->state & TTK_STATE_OPEN))) {
+ /* detached or closed ancestor */
+ return -1;
+ }
+ if (p == root) {
+ return ypos;
+ }
+ ypos += ItemHeight(p);
+ }
+ }
+}
+
+/*------------------------------------------------------------------------
+ * +++ Display routines.
+ */
+
+/* + GetSublayout --
+ * Utility routine; acquires a sublayout for items, cells, etc.
+ */
+static Ttk_Layout GetSublayout(
+ Tcl_Interp *interp,
+ Ttk_Theme themePtr,
+ Ttk_Layout parentLayout,
+ const char *layoutName,
+ Tk_OptionTable optionTable,
+ Ttk_Layout *layoutPtr)
+{
+ Ttk_Layout newLayout = Ttk_CreateSublayout(
+ interp, themePtr, parentLayout, layoutName, optionTable);
+
+ if (newLayout) {
+ if (*layoutPtr)
+ Ttk_FreeLayout(*layoutPtr);
+ *layoutPtr = newLayout;
+ }
+ return newLayout;
+}
+
+/* + TreeviewGetLayout --
+ * GetLayout() widget hook.
+ */
+static Ttk_Layout TreeviewGetLayout(
+ Tcl_Interp *interp, Ttk_Theme themePtr, void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ Ttk_Layout treeLayout = WidgetGetLayout(interp, themePtr, recordPtr);
+
+ if (!(
+ GetSublayout(interp, themePtr, treeLayout, ".Item",
+ tv->tree.itemOptionTable, &tv->tree.itemLayout)
+ && GetSublayout(interp, themePtr, treeLayout, ".Cell",
+ tv->tree.tagOptionTable, &tv->tree.cellLayout) /*@@@HERE*/
+ && GetSublayout(interp, themePtr, treeLayout, ".Heading",
+ tv->tree.headingOptionTable, &tv->tree.headingLayout)
+ && GetSublayout(interp, themePtr, treeLayout, ".Row",
+ tv->tree.tagOptionTable, &tv->tree.rowLayout) /*@@@HERE*/
+ )) {
+ return 0;
+ }
+
+ return treeLayout;
+}
+
+/* + TreeviewDoLayout --
+ * DoLayout() widget hook. Computes widget layout.
+ *
+ * Side effects:
+ * Computes headingArea and treeArea.
+ * Computes subtree height.
+ * Invokes scroll callbacks.
+ */
+static void TreeviewDoLayout(void *clientData)
+{
+ Treeview *tv = clientData;
+ unsigned showFlags = tv->tree.showFlags;
+ Ttk_LayoutNode *clientNode = Ttk_LayoutFindNode(tv->core.layout, "client");
+
+ Ttk_PlaceLayout(tv->core.layout,tv->core.state,Ttk_WinBox(tv->core.tkwin));
+ tv->tree.treeArea = clientNode
+ ? Ttk_LayoutNodeInternalParcel(tv->core.layout,clientNode)
+ : Ttk_WinBox(tv->core.tkwin) ;
+
+ PlaceColumns(tv, tv->tree.treeArea.width);
+
+ if (showFlags & SHOW_HEADINGS) {
+ tv->tree.headingArea = Ttk_PackBox(
+ &tv->tree.treeArea, 1, HEADINGHEIGHT, TTK_SIDE_TOP);
+ } else {
+ tv->tree.headingArea = Ttk_MakeBox(0,0,0,0);
+ }
+
+ tv->tree.root->state |= TTK_STATE_OPEN;
+ Scrolled(tv->tree.yscrollHandle,
+ tv->tree.yscroll.first,
+ tv->tree.yscroll.first + (tv->tree.treeArea.height / ROWHEIGHT),
+ CountRows(tv->tree.root) - 1);
+}
+
+/* + TreeviewSize --
+ * SizeProc() widget hook. Size is determined by
+ * -height option and column widths.
+ *
+ * <<NOTE-SLOP>>: Ought to compute extra width and height
+ * by checking the padding of TTK_OPTION_BORDER elements
+ * in the layout. In the meantime, just add some extra for slop.
+ */
+static int TreeviewSize(void *clientData, int *widthPtr, int *heightPtr)
+{
+ Treeview *tv = clientData;
+ int nRows;
+ int slop = 12; /* NOTE-SLOP */
+
+ Tk_GetPixelsFromObj(NULL,tv->core.tkwin, tv->tree.heightObj, &nRows);
+
+ *widthPtr = TreeWidth(tv) + slop;
+ *heightPtr = slop + ROWHEIGHT * nRows;
+
+ if (tv->tree.showFlags & SHOW_HEADINGS)
+ *heightPtr += HEADINGHEIGHT;
+
+ return 1;
+}
+
+/* + ItemState --
+ * Returns the state of the specified item, based
+ * on widget state, item state, and other information.
+ */
+static Ttk_State ItemState(Treeview *tv, TreeItem *item)
+{
+ Ttk_State state = tv->core.state | item->state;
+ if (!item->children)
+ state |= TTK_STATE_LEAF;
+ if (item != tv->tree.focus)
+ state &= ~TTK_STATE_FOCUS;
+ return state;
+}
+
+/* + DrawHeadings --
+ * Draw tree headings.
+ */
+static void DrawHeadings(Treeview *tv, Drawable d, Ttk_Box b)
+{
+ int i = (tv->tree.showFlags & SHOW_TREE) ? 0 : 1;
+ int x = 0;
+
+ while (i < tv->tree.nDisplayColumns) {
+ TreeColumn *column = tv->tree.displayColumns[i];
+ Ttk_Box parcel = Ttk_MakeBox(b.x+x, b.y, column->width, b.height);
+ DisplayLayout(tv->tree.headingLayout,
+ column, column->headingState, parcel, d);
+ x += column->width;
+ ++i;
+ }
+}
+
+/* + PrepareItem --
+ * Fill in a displayItem record from tag settings.
+ */
+static void PrepareItem(Treeview *tv, TreeItem *item, DisplayItem *displayItem)
+{
+ const int nOptions = sizeof(*displayItem)/sizeof(Tcl_Obj*);
+ Tcl_Obj **dest = (Tcl_Obj**)displayItem;
+ Tcl_Obj **objv = NULL;
+ int objc = 0;
+
+ memset(displayItem, 0, sizeof(*displayItem));
+
+ if ( item->tagsObj
+ && Tcl_ListObjGetElements(NULL, item->tagsObj, &objc, &objv) == TCL_OK)
+ {
+ int i, j;
+ for (i=0; i<objc; ++i) {
+ Ttk_Tag tag = Ttk_GetTagFromObj(tv->tree.tagTable, objv[i]);
+ Tcl_Obj **tagRecord = Ttk_TagRecord(tag);
+
+ if (tagRecord) {
+ for (j=0; j<nOptions; ++j) {
+ if (tagRecord[j] != 0) {
+ dest[j] = tagRecord[j];
+ }
+ }
+ }
+ }
+ }
+}
+
+/* + DrawCells --
+ * Draw data cells for specified item.
+ */
+static void DrawCells(
+ Treeview *tv, TreeItem *item, DisplayItem *displayItem,
+ Drawable d, Ttk_Box b, int x, int y)
+{
+ Ttk_Layout layout = tv->tree.cellLayout;
+ Ttk_State state = ItemState(tv, item);
+ Ttk_Padding cellPadding = {4, 0, 4, 0};
+ int height = ROWHEIGHT;
+ int nValues = 0;
+ Tcl_Obj **values = 0;
+ int i;
+
+ if (!item->valuesObj) {
+ return;
+ }
+
+ Tcl_ListObjGetElements(NULL, item->valuesObj, &nValues, &values);
+ for (i = 0; i < tv->tree.nColumns; ++i) {
+ tv->tree.columns[i].data = (i < nValues) ? values[i] : 0;
+ }
+
+ for (i = 1; i < tv->tree.nDisplayColumns; ++i) {
+ TreeColumn *column = tv->tree.displayColumns[i];
+ Ttk_Box parcel = Ttk_PadBox(
+ Ttk_MakeBox(b.x+x, b.y+y, column->width, height), cellPadding);
+
+ displayItem->textObj = column->data;
+ displayItem->anchorObj = column->anchorObj;
+
+ DisplayLayout(layout, displayItem, state, parcel, d);
+ x += column->width;
+ }
+}
+
+/* + DrawItem --
+ * Draw an item (row background, tree label, and cells).
+ * at the specified x, y position.
+ */
+static void DrawItem(
+ Treeview *tv, TreeItem *item, Drawable d, Ttk_Box b, int depth, int row)
+{
+ Ttk_Layout layout = tv->tree.itemLayout;
+ Ttk_State state = ItemState(tv, item);
+ DisplayItem displayItem;
+ int height = ROWHEIGHT;
+ int x = depth * INDENT;
+ int y = (row - tv->tree.yscroll.first) * ROWHEIGHT;
+
+ if (row % 2) state |= TTK_STATE_ALTERNATE;
+
+ PrepareItem(tv, item, &displayItem);
+
+ /* Draw row background:
+ */
+ {
+ Ttk_Box rowBox = Ttk_MakeBox(b.x, b.y+y, TreeWidth(tv), height);
+ DisplayLayout(tv->tree.rowLayout, &displayItem, state, rowBox, d);
+ }
+
+ /* Draw tree label:
+ */
+ if (tv->tree.showFlags & SHOW_TREE) {
+ int colwidth = tv->tree.column0.width;
+ Ttk_Box parcel = Ttk_MakeBox(b.x + x, b.y + y, colwidth - x, height);
+ DisplayLayout(layout, item, state, parcel, d);
+ x = colwidth;
+ } else {
+ x = 0;
+ }
+
+ /* Draw data cells:
+ */
+ DrawCells(tv, item, &displayItem, d, b, x, y);
+}
+
+/* + DrawSubtree --
+ * Draw an item and all of its (viewable) descendants.
+ *
+ * Returns:
+ * Row number of the last item drawn.
+ */
+
+static int DrawForest( /* forward */
+ Treeview *tv, TreeItem *item, Drawable d, Ttk_Box b, int depth, int row);
+
+static int DrawSubtree(
+ Treeview *tv, TreeItem *item, Drawable d, Ttk_Box b, int depth, int row)
+{
+ if (row >= tv->tree.yscroll.first) {
+ DrawItem(tv, item, d, b, depth, row);
+ }
+
+ if (item->state & TTK_STATE_OPEN) {
+ return DrawForest(tv, item->children, d, b, depth + 1, row + 1);
+ } else {
+ return row + 1;
+ }
+}
+
+/* + DrawForest --
+ * Draw a sequence of items and their visible descendants.
+ *
+ * Returns:
+ * Row number of the last item drawn.
+ */
+static int DrawForest(
+ Treeview *tv, TreeItem *item, Drawable d, Ttk_Box b, int depth, int row)
+{
+ while (item && row <= tv->tree.yscroll.last) {
+ row = DrawSubtree(tv, item, d, b, depth, row);
+ item = item->next;
+ }
+ return row;
+}
+
+/* + TreeviewDisplay --
+ * Display() widget hook. Draw the widget contents.
+ */
+static void TreeviewDisplay(void *clientData, Drawable d)
+{
+ Treeview *tv = clientData;
+
+ Ttk_DrawLayout(tv->core.layout, tv->core.state, d);
+ if (tv->tree.showFlags & SHOW_HEADINGS) {
+ DrawHeadings(tv, d, tv->tree.headingArea);
+ }
+ DrawForest(tv, tv->tree.root->children, d, tv->tree.treeArea, 0,0);
+}
+
+/*------------------------------------------------------------------------
+ * +++ Utilities for widget commands
+ */
+
+/* + InsertPosition --
+ * Locate the previous sibling for [$tree insert] and [$tree move].
+ *
+ * Returns a pointer to the item just before the specified index,
+ * or 0 if the item is to be inserted at the beginning.
+ */
+static TreeItem *InsertPosition(TreeItem *parent, int index)
+{
+ TreeItem *sibling = parent->children;
+ if (sibling) {
+ while (index > 0 && sibling->next) {
+ sibling = sibling->next;
+ --index;
+ }
+ if (index <= 0) {
+ sibling = sibling->prev;
+ } /* else -- $index > #children, insert at end. */
+ }
+ return sibling;
+}
+
+/* + EndPosition --
+ * Locate the last child of the specified node.
+ */
+static TreeItem *EndPosition(TreeItem *parent)
+{
+ TreeItem *sibling = parent->children;
+ if (sibling) {
+ while (sibling->next) {
+ sibling = sibling->next;
+ }
+ }
+ return sibling;
+}
+
+/* + AncestryCheck --
+ * Verify that specified item is not an ancestor of the specified parent;
+ * returns 1 if OK, 0 and leaves an error message in interp otherwise.
+ */
+static int AncestryCheck(
+ Tcl_Interp *interp, Treeview *tv, TreeItem *item, TreeItem *parent)
+{
+ TreeItem *p = parent;
+ while (p) {
+ if (p == item) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp,
+ "Cannot insert ", ItemName(tv, item),
+ " as a descendant of ", ItemName(tv, parent),
+ NULL);
+ return 0;
+ }
+ p = p->parent;
+ }
+ return 1;
+}
+
+/* + DeleteItems --
+ * Remove an item and all of its descendants from the hash table
+ * and detach them from the tree; returns a linked list (chained
+ * along the ->next pointer) of deleted items.
+ */
+static TreeItem *DeleteItems(TreeItem *item, TreeItem *delq)
+{
+ if (item->entryPtr) {
+ DetachItem(item);
+ while (item->children) {
+ delq = DeleteItems(item->children, delq);
+ }
+ Tcl_DeleteHashEntry(item->entryPtr);
+ item->entryPtr = 0;
+ item->next = delq;
+ delq = item;
+ } /* else -- item has already been unlinked */
+ return delq;
+}
+
+/* + RowNumber --
+ * Calculate which row the specified item appears on;
+ * returns -1 if the item is not viewable.
+ * Xref: DrawForest, IdentifyItem.
+ */
+static int RowNumber(Treeview *tv, TreeItem *item)
+{
+ TreeItem *p = tv->tree.root->children;
+ int n = 0;
+
+ while (p) {
+ if (p == item)
+ return n;
+
+ ++n;
+
+ /* Find next viewable item in preorder traversal order
+ */
+ if (p->children && (p->state & TTK_STATE_OPEN)) {
+ p = p->children;
+ } else {
+ while (!p->next && p && p->parent)
+ p = p->parent;
+ if (p)
+ p = p->next;
+ }
+ }
+
+ return -1;
+}
+
+/* + ItemDepth -- return the depth of a tree item.
+ * The depth of an item is equal to the number of proper ancestors,
+ * not counting the root node.
+ */
+static int ItemDepth(TreeItem *item)
+{
+ int depth = 0;
+ while (item->parent) {
+ ++depth;
+ item = item->parent;
+ }
+ return depth-1;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Widget commands -- item inquiry.
+ */
+
+/* + $tv children $item ?newchildren? --
+ * Return the list of children associated with $item
+ */
+static int TreeviewChildrenCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item;
+ Tcl_Obj *result;
+
+ if (objc < 3 || objc > 4) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item ?newchildren?");
+ return TCL_ERROR;
+ }
+ item = FindItem(interp, tv, objv[2]);
+ if (!item) {
+ return TCL_ERROR;
+ }
+
+ if (objc == 3) {
+ result = Tcl_NewListObj(0,0);
+ for (item = item->children; item; item = item->next) {
+ Tcl_ListObjAppendElement(interp, result, ItemID(tv, item));
+ }
+ Tcl_SetObjResult(interp, result);
+ } else {
+ TreeItem **newChildren = GetItemListFromObj(interp, tv, objv[3]);
+ TreeItem *child;
+ int i;
+
+ if (!newChildren)
+ return TCL_ERROR;
+
+ /* Sanity-check:
+ */
+ for (i=0; newChildren[i]; ++i) {
+ if (!AncestryCheck(interp, tv, newChildren[i], item)) {
+ ckfree((ClientData)newChildren);
+ return TCL_ERROR;
+ }
+ }
+
+ /* Detach old children:
+ */
+ child = item->children;
+ while (child) {
+ TreeItem *next = child->next;
+ DetachItem(child);
+ child = next;
+ }
+
+ /* Detach new children from their current locations:
+ */
+ for (i=0; newChildren[i]; ++i) {
+ DetachItem(newChildren[i]);
+ }
+
+ /* Reinsert new children:
+ * Note: it is not an error for an item to be listed more than once,
+ * though it probably should be...
+ */
+ child = 0;
+ for (i=0; newChildren[i]; ++i) {
+ if (newChildren[i]->parent) {
+ /* This is a duplicate element which has already been
+ * inserted. Ignore it.
+ */
+ continue;
+ }
+ InsertItem(item, child, newChildren[i]);
+ child = newChildren[i];
+ }
+
+ ckfree((ClientData)newChildren);
+ TtkRedisplayWidget(&tv->core);
+ }
+
+ return TCL_OK;
+}
+
+/* + $tv parent $item --
+ * Return the item ID of $item's parent.
+ */
+static int TreeviewParentCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item");
+ return TCL_ERROR;
+ }
+ item = FindItem(interp, tv, objv[2]);
+ if (!item) {
+ return TCL_ERROR;
+ }
+
+ if (item->parent) {
+ Tcl_SetObjResult(interp, ItemID(tv, item->parent));
+ } else {
+ /* This is the root item. @@@ Return an error? */
+ Tcl_ResetResult(interp);
+ }
+
+ return TCL_OK;
+}
+
+/* + $tv next $item
+ * Return the ID of $item's next sibling.
+ */
+static int TreeviewNextCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item");
+ return TCL_ERROR;
+ }
+ item = FindItem(interp, tv, objv[2]);
+ if (!item) {
+ return TCL_ERROR;
+ }
+
+ if (item->next) {
+ Tcl_SetObjResult(interp, ItemID(tv, item->next));
+ } /* else -- leave interp-result empty */
+
+ return TCL_OK;
+}
+
+/* + $tv prev $item
+ * Return the ID of $item's previous sibling.
+ */
+static int TreeviewPrevCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item");
+ return TCL_ERROR;
+ }
+ item = FindItem(interp, tv, objv[2]);
+ if (!item) {
+ return TCL_ERROR;
+ }
+
+ if (item->prev) {
+ Tcl_SetObjResult(interp, ItemID(tv, item->prev));
+ } /* else -- leave interp-result empty */
+
+ return TCL_OK;
+}
+
+/* + $tv index $item --
+ * Return the index of $item within its parent.
+ */
+static int TreeviewIndexCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item;
+ int index = 0;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item");
+ return TCL_ERROR;
+ }
+ item = FindItem(interp, tv, objv[2]);
+ if (!item) {
+ return TCL_ERROR;
+ }
+
+ while (item->prev) {
+ ++index;
+ item = item->prev;
+ }
+
+ Tcl_SetObjResult(interp, Tcl_NewIntObj(index));
+ return TCL_OK;
+}
+
+/* + $tv exists $itemid --
+ * Test if the specified item id is present in the tree.
+ */
+static int TreeviewExistsCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ Tcl_HashEntry *entryPtr;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "itemid");
+ return TCL_ERROR;
+ }
+
+ entryPtr = Tcl_FindHashEntry(&tv->tree.items, Tcl_GetString(objv[2]));
+ Tcl_SetObjResult(interp, Tcl_NewBooleanObj(entryPtr != 0));
+ return TCL_OK;
+}
+
+/* + $tv bbox $itemid ?$column? --
+ * Return bounding box [x y width height] of specified item.
+ */
+static int TreeviewBBoxCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item = 0;
+ TreeColumn *column = 0;
+ int ypos;
+ Ttk_Box bbox;
+
+ if (objc < 3 || objc > 4) {
+ Tcl_WrongNumArgs(interp, 2, objv, "itemid ?column");
+ return TCL_ERROR;
+ }
+
+ item = FindItem(interp, tv, objv[2]);
+ if (!item) {
+ return TCL_ERROR;
+ }
+ if (objc >=4 && (column = FindColumn(interp,tv,objv[3])) == NULL) {
+ return TCL_ERROR;
+ }
+
+ /* Compute bounding box of item:
+ * ALTERNATE: (RowNumber(tv, item) - tv->tree.yscroll.first) * ROWHEIGHT;
+ */
+ ypos = ItemYPosition(tv, item) - (ROWHEIGHT * tv->tree.yscroll.first);
+ if (ypos < 0 || ypos > tv->tree.treeArea.height) {
+ /* not viewable, or off-screen */
+ return TCL_OK;
+ }
+
+ bbox = tv->tree.treeArea;
+ bbox.y += ypos;
+ bbox.height = ROWHEIGHT;
+
+ /* If column has been specified, compute bounding box of cell
+ */
+ if (column) {
+ int xpos = 0, i = (tv->tree.showFlags & SHOW_TREE) ? 0 : 1;
+ while (i < tv->tree.nDisplayColumns) {
+ if (tv->tree.displayColumns[i] == column) {
+ break;
+ }
+ xpos += tv->tree.displayColumns[i]->width;
+ ++i;
+ }
+ if (i == tv->tree.nDisplayColumns) { /* specified column unviewable */
+ return TCL_OK;
+ }
+ bbox.x += xpos;
+ bbox.width = column->width;
+
+ /* Special case for tree column -- account for indentation:
+ * (@@@ NOTE: doesn't account for tree indicator or image;
+ * @@@ this may or may not be the right thing.)
+ */
+ if (column == &tv->tree.column0) {
+ int indent = INDENT * ItemDepth(item);
+ bbox.x += indent;
+ bbox.width -= indent;
+ }
+ }
+
+ Tcl_SetObjResult(interp, Ttk_NewBoxObj(bbox));
+ return TCL_OK;
+}
+
+/* + $tv identify $x $y -- (obsolescent)
+ * Implements the old, horrible, 2-argument form of [$tv identify].
+ *
+ * Returns: one of
+ * heading #n
+ * cell itemid #n
+ * item itemid element
+ * row itemid
+ */
+static int TreeviewHorribleIdentify(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], Treeview *tv)
+{
+ const char *what = "nothing", *detail = NULL;
+ TreeItem *item = 0;
+ Tcl_Obj *result;
+ int dColumnNumber;
+ char dcolbuf[16];
+ int x, y, x1;
+
+ /* ASSERT: objc == 4 */
+
+ if ( Tcl_GetIntFromObj(interp, objv[2], &x) != TCL_OK
+ || Tcl_GetIntFromObj(interp, objv[3], &y) != TCL_OK
+ ) {
+ return TCL_ERROR;
+ }
+
+ dColumnNumber = IdentifyDisplayColumn(tv, x, &x1);
+ if (dColumnNumber < 0) {
+ goto done;
+ }
+ sprintf(dcolbuf, "#%d", dColumnNumber);
+
+ if (Ttk_BoxContains(tv->tree.headingArea,x,y)) {
+ if (-HALO <= x1 - x && x1 - x <= HALO) {
+ what = "separator";
+ } else {
+ what = "heading";
+ }
+ detail = dcolbuf;
+ } else if (Ttk_BoxContains(tv->tree.treeArea,x,y)) {
+ Ttk_Box itemBox;
+ item = IdentifyItem(tv, y, &itemBox);
+ if (item && dColumnNumber > 0) {
+ what = "cell";
+ detail = dcolbuf;
+ } else if (item) {
+ Ttk_Layout layout = tv->tree.itemLayout;
+ Ttk_LayoutNode *element;
+ Ttk_RebindSublayout(layout, item);
+ Ttk_PlaceLayout(layout, ItemState(tv,item), itemBox);
+ element = Ttk_LayoutIdentify(layout, x, y);
+
+ if (element) {
+ what = "item";
+ detail = Ttk_LayoutNodeName(element);
+ } else {
+ what = "row";
+ }
+ }
+ }
+
+done:
+ result = Tcl_NewListObj(0,0);
+ Tcl_ListObjAppendElement(NULL, result, Tcl_NewStringObj(what, -1));
+ if (item)
+ Tcl_ListObjAppendElement(NULL, result, ItemID(tv, item));
+ if (detail)
+ Tcl_ListObjAppendElement(NULL, result, Tcl_NewStringObj(detail, -1));
+
+ Tcl_SetObjResult(interp, result);
+ return TCL_OK;
+}
+
+/* + $tv identify $component $x $y --
+ * Identify the component at position x,y.
+ */
+
+static int TreeviewIdentifyCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ static const char *componentStrings[] =
+ { "row", "column", NULL };
+ enum { I_ROW, I_COLUMN };
+
+ Treeview *tv = recordPtr;
+ int component, x, y;
+
+ if (objc == 4) { /* Old form */
+ return TreeviewHorribleIdentify(interp, objc, objv, tv);
+ } else if (objc != 5) {
+ Tcl_WrongNumArgs(interp, 2, objv, "component x y");
+ return TCL_ERROR;
+ }
+
+ if ( Tcl_GetIndexFromObj(interp, objv[2],
+ componentStrings, "component", TCL_EXACT, &component) != TCL_OK
+ || Tcl_GetIntFromObj(interp, objv[3], &x) != TCL_OK
+ || Tcl_GetIntFromObj(interp, objv[4], &y) != TCL_OK
+ ) {
+ return TCL_ERROR;
+ }
+
+ switch (component)
+ {
+ case I_ROW :
+ {
+ Ttk_Box itemBox;
+ TreeItem *item = IdentifyItem(tv, y, &itemBox);
+ if (item) {
+ Tcl_SetObjResult(interp, ItemID(tv, item));
+ }
+ break;
+ }
+
+ case I_COLUMN :
+ {
+ int x1;
+ int column = IdentifyDisplayColumn(tv, x, &x1);
+
+ if (column >= 0) {
+ char dcolbuf[16];
+ sprintf(dcolbuf, "#%d", column);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(dcolbuf, -1));
+ }
+ break;
+ }
+ }
+ return TCL_OK;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Widget commands -- item and column configuration.
+ */
+
+/* + $tv item $item ?options ....?
+ * Query or configure item options.
+ */
+static int TreeviewItemCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item;
+
+ if (objc < 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item ?option ?value??...");
+ return TCL_ERROR;
+ }
+ if (!(item = FindItem(interp, tv, objv[2]))) {
+ return TCL_ERROR;
+ }
+
+ if (objc == 3) {
+ return EnumerateOptions(interp, item, ItemOptionSpecs,
+ tv->tree.itemOptionTable, tv->core.tkwin);
+ } else if (objc == 4) {
+ return GetOptionValue(interp, item, objv[3],
+ tv->tree.itemOptionTable, tv->core.tkwin);
+ } else {
+ return ConfigureItem(interp, tv, item, objc-3, objv+3);
+ }
+}
+
+/* + $tv column column ?options ....?
+ * Column data accessor
+ */
+static int TreeviewColumnCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeColumn *column;
+
+ if (objc < 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "column -option value...");
+ return TCL_ERROR;
+ }
+ if (!(column = FindColumn(interp, tv, objv[2]))) {
+ return TCL_ERROR;
+ }
+
+ if (objc == 3) {
+ return EnumerateOptions(interp, column, ColumnOptionSpecs,
+ tv->tree.columnOptionTable, tv->core.tkwin);
+ } else if (objc == 4) {
+ return GetOptionValue(interp, column, objv[3],
+ tv->tree.columnOptionTable, tv->core.tkwin);
+ } else {
+ return ConfigureColumn(interp, tv, column, objc-3, objv+3);
+ }
+}
+
+/* + $tv heading column ?options ....?
+ * Heading data accessor
+ */
+static int TreeviewHeadingCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ Tk_OptionTable optionTable = tv->tree.headingOptionTable;
+ Tk_Window tkwin = tv->core.tkwin;
+ TreeColumn *column;
+
+ if (objc < 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "column -option value...");
+ return TCL_ERROR;
+ }
+ if (!(column = FindColumn(interp, tv, objv[2]))) {
+ return TCL_ERROR;
+ }
+
+ if (objc == 3) {
+ return EnumerateOptions(
+ interp, column, HeadingOptionSpecs, optionTable, tkwin);
+ } else if (objc == 4) {
+ return GetOptionValue(
+ interp, column, objv[3], optionTable, tkwin);
+ } else {
+ return ConfigureHeading(interp, tv, column, objc-3,objv+3);
+ }
+}
+
+/* + $tv set $item ?$column ?value??
+ * Query or configure cell values
+ */
+static int TreeviewSetCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item;
+ TreeColumn *column;
+ int columnNumber;
+
+ if (objc < 3 || objc > 5) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item ?column ?value??");
+ return TCL_ERROR;
+ }
+ if (!(item = FindItem(interp, tv, objv[2])))
+ return TCL_ERROR;
+
+ /* Make sure -values exists:
+ */
+ if (!item->valuesObj) {
+ item->valuesObj = Tcl_NewListObj(0,0);
+ Tcl_IncrRefCount(item->valuesObj);
+ }
+
+ if (objc == 3) {
+ /* Return dictionary:
+ */
+ Tcl_Obj *result = Tcl_NewListObj(0,0);
+ Tcl_Obj *value;
+ for (columnNumber=0; columnNumber<tv->tree.nColumns; ++columnNumber) {
+ Tcl_ListObjIndex(interp, item->valuesObj, columnNumber, &value);
+ if (value) {
+ Tcl_ListObjAppendElement(interp, result,
+ tv->tree.columns[columnNumber].idObj);
+ Tcl_ListObjAppendElement(interp, result, value);
+ }
+ }
+ Tcl_SetObjResult(interp, result);
+ return TCL_OK;
+ }
+
+ /* else -- get or set column
+ */
+ if (!(column = FindColumn(interp, tv, objv[3])))
+ return TCL_ERROR;
+
+ if (column == &tv->tree.column0) {
+ /* @@@ Maybe set -text here instead? */
+ Tcl_AppendResult(interp, "Display column #0 cannot be set", NULL);
+ return TCL_ERROR;
+ }
+
+ /* Note: we don't do any error checking in the list operations,
+ * since item->valuesObj is guaranteed to be a list.
+ */
+ columnNumber = column - tv->tree.columns;
+
+ if (objc == 4) { /* get column */
+ Tcl_Obj *result = 0;
+ Tcl_ListObjIndex(interp, item->valuesObj, columnNumber, &result);
+ if (!result) {
+ result = Tcl_NewStringObj("",0);
+ }
+ Tcl_SetObjResult(interp, result);
+ return TCL_OK;
+ } else { /* set column */
+ int length;
+
+ item->valuesObj = unshare(item->valuesObj);
+
+ /* Make sure -values is fully populated:
+ */
+ Tcl_ListObjLength(interp, item->valuesObj, &length);
+ while (length < tv->tree.nColumns) {
+ Tcl_Obj *empty = Tcl_NewStringObj("",0);
+ Tcl_ListObjAppendElement(interp, item->valuesObj, empty);
+ ++length;
+ }
+
+ /* Set value:
+ */
+ Tcl_ListObjReplace(interp,item->valuesObj,columnNumber,1,1,objv+4);
+ TtkRedisplayWidget(&tv->core);
+ return TCL_OK;
+ }
+}
+
+/*------------------------------------------------------------------------
+ * +++ Widget commands -- tree modification.
+ */
+
+/* + $tv insert $parent $index ?-id id? ?-option value...?
+ * Insert a new item.
+ */
+static int TreeviewInsertCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *parent, *sibling, *newItem;
+ Tcl_HashEntry *entryPtr;
+ int isNew;
+
+ if (objc < 4) {
+ Tcl_WrongNumArgs(interp, 2, objv, "parent index ?-id id? -options...");
+ return TCL_ERROR;
+ }
+
+ /* Get parent node:
+ */
+ if ((parent = FindItem(interp, tv, objv[2])) == NULL) {
+ return TCL_ERROR;
+ }
+
+ /* Locate previous sibling based on $index:
+ */
+ if (!strcmp(Tcl_GetString(objv[3]), "end")) {
+ sibling = EndPosition(parent);
+ } else {
+ int index;
+ if (Tcl_GetIntFromObj(interp, objv[3], &index) != TCL_OK)
+ return TCL_ERROR;
+ sibling = InsertPosition(parent, index);
+ }
+
+ /* Get node name:
+ * If -id supplied and does not already exist, use that;
+ * Otherwise autogenerate new one.
+ */
+ objc -= 4; objv += 4;
+ if (objc >= 2 && !strcmp("-id", Tcl_GetString(objv[0]))) {
+ const char *itemName = Tcl_GetString(objv[1]);
+ entryPtr = Tcl_CreateHashEntry(&tv->tree.items, itemName, &isNew);
+ if (!isNew) {
+ Tcl_AppendResult(interp, "Item ",itemName," already exists",NULL);
+ return TCL_ERROR;
+ }
+ objc -= 2; objv += 2;
+ } else {
+ char idbuf[16];
+ do {
+ ++tv->tree.serial;
+ sprintf(idbuf, "I%03X", tv->tree.serial);
+ entryPtr = Tcl_CreateHashEntry(&tv->tree.items, idbuf, &isNew);
+ } while (!isNew);
+ }
+
+ /* Create and configure new item:
+ */
+ newItem = NewItem();
+ Tk_InitOptions(
+ interp, (ClientData)newItem, tv->tree.itemOptionTable, tv->core.tkwin);
+ if (ConfigureItem(interp, tv, newItem, objc, objv) != TCL_OK) {
+ Tcl_DeleteHashEntry(entryPtr);
+ FreeItem(newItem);
+ return TCL_ERROR;
+ }
+
+ /* Store in hash table, link into tree:
+ */
+ Tcl_SetHashValue(entryPtr, newItem);
+ newItem->entryPtr = entryPtr;
+ InsertItem(parent, sibling, newItem);
+ TtkRedisplayWidget(&tv->core);
+
+ Tcl_SetObjResult(interp, ItemID(tv, newItem));
+ return TCL_OK;
+}
+
+/* + $tv detach $item --
+ * Unlink $item from the tree.
+ */
+static int TreeviewDetachCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem **items;
+ int i;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item");
+ return TCL_ERROR;
+ }
+ if (!(items = GetItemListFromObj(interp, tv, objv[2]))) {
+ return TCL_ERROR;
+ }
+
+ /* Sanity-check */
+ for (i = 0; items[i]; ++i) {
+ if (items[i] == tv->tree.root) {
+ Tcl_AppendResult(interp, "Cannot detach root item", NULL);
+ ckfree((ClientData)items);
+ return TCL_ERROR;
+ }
+ }
+
+ for (i = 0; items[i]; ++i) {
+ DetachItem(items[i]);
+ }
+
+ TtkRedisplayWidget(&tv->core);
+ ckfree((ClientData)items);
+ return TCL_OK;
+}
+
+/* + $tv delete $items --
+ * Delete each item in $items.
+ *
+ * Do this in two passes:
+ * First detach the item and all its descendants and remove them
+ * from the hash table. Free the items themselves in a second pass.
+ *
+ * It's done this way because an item may appear more than once
+ * in the list of items to delete (either directly or as a descendant
+ * of a previously deleted item.)
+ */
+
+static int TreeviewDeleteCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem **items, *delq;
+ int i;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "items");
+ return TCL_ERROR;
+ }
+
+ if (!(items = GetItemListFromObj(interp, tv, objv[2]))) {
+ return TCL_ERROR;
+ }
+
+ /* Sanity-check:
+ */
+ for (i=0; items[i]; ++i) {
+ if (items[i] == tv->tree.root) {
+ ckfree((ClientData)items);
+ Tcl_AppendResult(interp, "Cannot delete root item", NULL);
+ return TCL_ERROR;
+ }
+ }
+
+ /* Remove items from hash table.
+ */
+ delq = 0;
+ for (i=0; items[i]; ++i) {
+ delq = DeleteItems(items[i], delq);
+ }
+
+ /* Free items:
+ */
+ while (delq) {
+ TreeItem *next = delq->next;
+ if (tv->tree.focus == delq)
+ tv->tree.focus = 0;
+ FreeItem(delq);
+ delq = next;
+ }
+
+ ckfree((ClientData)items);
+ TtkRedisplayWidget(&tv->core);
+ return TCL_OK;
+}
+
+/* + $tv move $item $parent $index
+ * Move $item to the specified $index in $parent's child list.
+ */
+static int TreeviewMoveCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item, *parent;
+ TreeItem *sibling;
+
+ if (objc != 5) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item parent index");
+ return TCL_ERROR;
+ }
+ if ( (item = FindItem(interp, tv, objv[2])) == 0
+ || (parent = FindItem(interp, tv, objv[3])) == 0)
+ {
+ return TCL_ERROR;
+ }
+
+ /* Locate previous sibling based on $index:
+ */
+ if (!strcmp(Tcl_GetString(objv[4]), "end")) {
+ sibling = EndPosition(parent);
+ } else {
+ int index;
+ if (Tcl_GetIntFromObj(interp, objv[4], &index) != TCL_OK)
+ return TCL_ERROR;
+ sibling = InsertPosition(parent, index);
+ }
+
+ /* Check ancestry:
+ */
+ if (!AncestryCheck(interp, tv, item, parent))
+ return TCL_ERROR;
+
+ /* Moving an item after itself is a no-op:
+ */
+ if (item == sibling) {
+ return TCL_OK;
+ }
+
+ /* Move item:
+ */
+ DetachItem(item);
+ InsertItem(parent, sibling, item);
+
+ TtkRedisplayWidget(&tv->core);
+ return TCL_OK;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Widget commands -- scrolling
+ */
+
+static int TreeviewYViewCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ return ScrollviewCommand(interp, objc, objv, tv->tree.yscrollHandle);
+}
+
+/* $tree see $item --
+ * Ensure that $item is visible.
+ */
+static int TreeviewSeeCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ TreeItem *item, *parent;
+ int rowNumber;
+
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 2, objv, "item");
+ return TCL_ERROR;
+ }
+ if (!(item = FindItem(interp, tv, objv[2]))) {
+ return TCL_ERROR;
+ }
+
+ /* Make sure all ancestors are open:
+ */
+ for (parent = item->parent; parent; parent = parent->parent) {
+ if (!(parent->state & TTK_STATE_OPEN)) {
+ parent->openObj = unshare(parent->openObj);
+ Tcl_SetBooleanObj(parent->openObj, 1);
+ parent->state |= TTK_STATE_OPEN;
+ }
+ }
+
+ /* Make sure item is visible:
+ * @@@ DOUBLE-CHECK THIS:
+ */
+ rowNumber = RowNumber(tv, item);
+ if (rowNumber < tv->tree.yscroll.first) {
+ ScrollTo(tv->tree.yscrollHandle, rowNumber);
+ } else if (rowNumber >= tv->tree.yscroll.last) {
+ ScrollTo(tv->tree.yscrollHandle,
+ tv->tree.yscroll.first + (1+rowNumber - tv->tree.yscroll.last));
+ }
+
+ return TCL_OK;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Widget commands -- focus and selection
+ */
+
+/* + $tree focus ?item?
+ */
+static int TreeviewFocusCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+
+ if (objc == 2) {
+ if (tv->tree.focus) {
+ Tcl_SetObjResult(interp, ItemID(tv, tv->tree.focus));
+ }
+ return TCL_OK;
+ } else if (objc == 3) {
+ TreeItem *newFocus = FindItem(interp, tv, objv[2]);
+ if (!newFocus)
+ return TCL_ERROR;
+ tv->tree.focus = newFocus;
+ TtkRedisplayWidget(&tv->core);
+ return TCL_OK;
+ } else {
+ Tcl_WrongNumArgs(interp, 2, objv, "?newFocus?");
+ return TCL_ERROR;
+ }
+}
+
+/* + $tree selection ?add|remove|set|toggle $items?
+ */
+static int TreeviewSelectionCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ enum {
+ SELECTION_SET, SELECTION_ADD, SELECTION_REMOVE, SELECTION_TOGGLE
+ };
+ static const char *selopStrings[] = {
+ "set", "add", "remove", "toggle", NULL
+ };
+
+ Treeview *tv = recordPtr;
+ int selop, i;
+ TreeItem *item, **items;
+
+ if (objc == 2) {
+ Tcl_Obj *result = Tcl_NewListObj(0,0);
+ for (item = tv->tree.root->children; item; item=NextPreorder(item)) {
+ if (item->state & TTK_STATE_SELECTED)
+ Tcl_ListObjAppendElement(NULL, result, ItemID(tv, item));
+ }
+ Tcl_SetObjResult(interp, result);
+ return TCL_OK;
+ }
+
+ if (objc != 4) {
+ Tcl_WrongNumArgs(interp, 2, objv, "?add|remove|set|toggle items?");
+ return TCL_ERROR;
+ }
+
+ if (Tcl_GetIndexFromObj(interp, objv[2], selopStrings,
+ "selection operation", 0, &selop) != TCL_OK)
+ {
+ return TCL_ERROR;
+ }
+
+ items = GetItemListFromObj(interp, tv, objv[3]);
+ if (!items) {
+ return TCL_ERROR;
+ }
+
+ switch (selop)
+ {
+ case SELECTION_SET:
+ for (item=tv->tree.root; item; item=NextPreorder(item)) {
+ item->state &= ~TTK_STATE_SELECTED;
+ }
+ /*FALLTHRU*/
+ case SELECTION_ADD:
+ for (i=0; items[i]; ++i) {
+ items[i]->state |= TTK_STATE_SELECTED;
+ }
+ break;
+ case SELECTION_REMOVE:
+ for (i=0; items[i]; ++i) {
+ items[i]->state &= ~TTK_STATE_SELECTED;
+ }
+ break;
+ case SELECTION_TOGGLE:
+ for (i=0; items[i]; ++i) {
+ items[i]->state ^= TTK_STATE_SELECTED;
+ }
+ break;
+ }
+
+ ckfree((ClientData)items);
+ SendVirtualEvent(tv->core.tkwin, "TreeviewSelect");
+ TtkRedisplayWidget(&tv->core);
+
+ return TCL_OK;
+}
+
+/*------------------------------------------------------------------------
+ * +++ Widget commands -- tags and bindings.
+ */
+
+/* + $tv tag bind $tag ?$sequence ?$script??
+ */
+static int TreeviewTagBindCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ Ttk_Tag tag;
+
+ if (objc < 4 || objc > 6) {
+ Tcl_WrongNumArgs(interp, 3, objv, "tagName ?sequence? ?script?");
+ return TCL_ERROR;
+ }
+
+ tag = Ttk_GetTagFromObj(tv->tree.tagTable, objv[3]);
+ if (!tag) { return TCL_ERROR; }
+
+ if (objc == 4) { /* $tv tag bind $tag */
+ Tk_GetAllBindings(interp, tv->tree.bindingTable, tag);
+ } else if (objc == 5) { /* $tv tag bind $tag $sequence */
+ /* TODO: distinguish "no such binding" (OK) from "bad pattern" (ERROR)
+ */
+ const char *script = Tk_GetBinding(interp,
+ tv->tree.bindingTable, tag, Tcl_GetString(objv[4]));
+ if (script != NULL) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(script,-1));
+ }
+ } else if (objc == 6) { /* $tv tag bind $tag $sequence $script */
+ CONST char *sequence = Tcl_GetString(objv[4]);
+ CONST char *script = Tcl_GetString(objv[5]);
+ unsigned long mask = Tk_CreateBinding(interp,
+ tv->tree.bindingTable, tag, sequence, script, 0);
+
+ /* Test mask to make sure event is supported:
+ */
+ if (mask & (~TreeviewBindEventMask)) {
+ Tk_DeleteBinding(interp, tv->tree.bindingTable, tag, sequence);
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp, "unsupported event ", sequence,
+ "\nonly key, button, motion, and virtual events supported",
+ NULL);
+ return TCL_ERROR;
+ }
+
+ return mask ? TCL_OK : TCL_ERROR;
+ }
+ return TCL_OK;
+}
+
+/* + $tv tag configure $tag ?-option ?value -option value...??
+ */
+static int TreeviewTagConfigureCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ Treeview *tv = recordPtr;
+ void *tagRecord;
+ Ttk_Tag tag;
+
+ if (objc < 4) {
+ Tcl_WrongNumArgs(interp, 3, objv, "tagName ?-option ?value ...??");
+ return TCL_ERROR;
+ }
+
+ tag = Ttk_GetTagFromObj(tv->tree.tagTable, objv[3]);
+ tagRecord = Ttk_TagRecord(tag);
+
+ if (objc == 4) {
+ return EnumerateOptions(interp, tagRecord, TagOptionSpecs,
+ tv->tree.tagOptionTable, tv->core.tkwin);
+ } else if (objc == 5) {
+ return GetOptionValue(interp, tagRecord, objv[4],
+ tv->tree.tagOptionTable, tv->core.tkwin);
+ }
+ /* else */
+ TtkRedisplayWidget(&tv->core);
+ return Tk_SetOptions(
+ interp, tagRecord, tv->tree.tagOptionTable,
+ objc - 4, objv + 4, tv->core.tkwin,
+ NULL/*savedOptions*/, NULL/*mask*/);
+}
+
+/* + $tv tag option args...
+ */
+static int TreeviewTagCommand(
+ Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], void *recordPtr)
+{
+ static WidgetCommandSpec TreeviewTagCommands[] = {
+ { "bind", TreeviewTagBindCommand },
+ { "configure", TreeviewTagConfigureCommand },
+ {0,0}
+ };
+ return WidgetEnsembleCommand(
+ TreeviewTagCommands, 2, interp, objc, objv, recordPtr);
+}
+
+/*------------------------------------------------------------------------
+ * +++ Widget commands record.
+ */
+static WidgetCommandSpec TreeviewCommands[] =
+{
+ { "bbox", TreeviewBBoxCommand },
+ { "children", TreeviewChildrenCommand },
+ { "cget", WidgetCgetCommand },
+ { "column", TreeviewColumnCommand },
+ { "configure", WidgetConfigureCommand },
+ { "delete", TreeviewDeleteCommand },
+ { "detach", TreeviewDetachCommand },
+ { "exists", TreeviewExistsCommand },
+ { "focus", TreeviewFocusCommand },
+ { "heading", TreeviewHeadingCommand },
+ { "identify", TreeviewIdentifyCommand },
+ { "index", TreeviewIndexCommand },
+ { "instate", WidgetInstateCommand },
+ { "insert", TreeviewInsertCommand },
+ { "item", TreeviewItemCommand },
+ { "move", TreeviewMoveCommand },
+ { "next", TreeviewNextCommand },
+ { "parent", TreeviewParentCommand },
+ { "prev", TreeviewPrevCommand },
+ { "see", TreeviewSeeCommand },
+ { "selection" , TreeviewSelectionCommand },
+ { "set", TreeviewSetCommand },
+ { "state", WidgetStateCommand },
+ { "tag", TreeviewTagCommand },
+ { "yview", TreeviewYViewCommand },
+ { NULL, NULL }
+};
+
+/*------------------------------------------------------------------------
+ * +++ Widget definition.
+ */
+
+WidgetSpec TreeviewWidgetSpec =
+{
+ "Treeview", /* className */
+ sizeof(Treeview), /* recordSize */
+ TreeviewOptionSpecs, /* optionSpecs */
+ TreeviewCommands, /* subcommands */
+ TreeviewInitialize, /* initializeProc */
+ TreeviewCleanup, /* cleanupProc */
+ TreeviewConfigure, /* configureProc */
+ NullPostConfigure, /* postConfigureProc */
+ TreeviewGetLayout, /* getLayoutProc */
+ TreeviewSize, /* sizeProc */
+ TreeviewDoLayout, /* layoutProc */
+ TreeviewDisplay /* displayProc */
+};
+
+/*------------------------------------------------------------------------
+ * +++ Layout specifications.
+ */
+
+TTK_BEGIN_LAYOUT(TreeviewLayout)
+ TTK_GROUP("Treeview.field", TTK_FILL_BOTH|TTK_BORDER,
+ TTK_GROUP("Treeview.padding", TTK_FILL_BOTH,
+ TTK_NODE("Treeview.client", TTK_FILL_BOTH)))
+TTK_END_LAYOUT
+
+TTK_BEGIN_LAYOUT(ItemLayout)
+ TTK_GROUP("Treeitem.padding", TTK_FILL_BOTH,
+ TTK_NODE("Treeitem.indicator", TTK_PACK_LEFT)
+ TTK_NODE("Treeitem.image", TTK_PACK_LEFT)
+ TTK_GROUP("Treeitem.focus", TTK_PACK_LEFT,
+ TTK_NODE("Treeitem.text", TTK_PACK_LEFT)))
+TTK_END_LAYOUT
+
+TTK_BEGIN_LAYOUT(CellLayout)
+ TTK_GROUP("Treedata.padding", TTK_FILL_BOTH,
+ TTK_NODE("Treeitem.label", TTK_FILL_BOTH))
+TTK_END_LAYOUT
+
+TTK_BEGIN_LAYOUT(HeadingLayout)
+ TTK_NODE("Treeheading.cell", TTK_FILL_BOTH)
+ TTK_GROUP("Treeheading.border", TTK_FILL_BOTH,
+ TTK_NODE("Treeheading.image", TTK_PACK_RIGHT)
+ TTK_NODE("Treeheading.text", TTK_FILL_X))
+TTK_END_LAYOUT
+
+TTK_BEGIN_LAYOUT(RowLayout)
+ TTK_NODE("Treeitem.row", TTK_FILL_BOTH)
+TTK_END_LAYOUT
+
+/*------------------------------------------------------------------------
+ * +++ Tree indicator element.
+ */
+
+#if defined(WIN32)
+static const int WIN32_XDRAWLINE_HACK = 1;
+#else
+static const int WIN32_XDRAWLINE_HACK = 0;
+#endif
+
+typedef struct
+{
+ Tcl_Obj *colorObj;
+ Tcl_Obj *sizeObj;
+ Tcl_Obj *marginsObj;
+} TreeitemIndicator;
+
+static Ttk_ElementOptionSpec TreeitemIndicatorOptions[] =
+{
+ { "-foreground", TK_OPTION_COLOR,
+ Tk_Offset(TreeitemIndicator,colorObj), DEFAULT_FOREGROUND },
+ { "-indicatorsize", TK_OPTION_PIXELS,
+ Tk_Offset(TreeitemIndicator,sizeObj), "12" },
+ { "-indicatormargins", TK_OPTION_STRING,
+ Tk_Offset(TreeitemIndicator,marginsObj), "2 2 4 2" },
+ {NULL}
+};
+
+static void TreeitemIndicatorSize(
+ void *clientData, void *elementRecord, Tk_Window tkwin,
+ int *widthPtr, int *heightPtr, Ttk_Padding *paddingPtr)
+{
+ TreeitemIndicator *indicator = elementRecord;
+ int size = 0;
+
+ Ttk_GetPaddingFromObj(NULL, tkwin, indicator->marginsObj, paddingPtr);
+ Tk_GetPixelsFromObj(NULL, tkwin, indicator->sizeObj, &size);
+
+ *widthPtr = *heightPtr = size;
+}
+
+static void TreeitemIndicatorDraw(
+ void *clientData, void *elementRecord, Tk_Window tkwin,
+ Drawable d, Ttk_Box b, Ttk_State state)
+{
+ TreeitemIndicator *indicator = elementRecord;
+ ArrowDirection direction =
+ (state & TTK_STATE_OPEN) ? ARROW_DOWN : ARROW_RIGHT;
+ Ttk_Padding margins;
+ XColor *borderColor = Tk_GetColorFromObj(tkwin, indicator->colorObj);
+ XGCValues gcvalues; GC gc; unsigned mask;
+
+ if (state & TTK_STATE_LEAF) /* don't draw anything */
+ return;
+
+ Ttk_GetPaddingFromObj(NULL,tkwin,indicator->marginsObj,&margins);
+ b = Ttk_PadBox(b, margins);
+
+ gcvalues.foreground = borderColor->pixel;
+ gcvalues.line_width = 1;
+ mask = GCForeground | GCLineWidth;
+ gc = Tk_GetGC(tkwin, mask, &gcvalues);
+
+ DrawArrow(Tk_Display(tkwin), d, gc, b, direction);
+
+ Tk_FreeGC(Tk_Display(tkwin), gc);
+}
+
+static Ttk_ElementSpec TreeitemIndicatorElementSpec =
+{
+ TK_STYLE_VERSION_2,
+ sizeof(TreeitemIndicator),
+ TreeitemIndicatorOptions,
+ TreeitemIndicatorSize,
+ TreeitemIndicatorDraw
+};
+
+/*------------------------------------------------------------------------
+ * +++ Row element.
+ */
+
+typedef struct
+{
+ Tcl_Obj *backgroundObj;
+ Tcl_Obj *rowNumberObj;
+} RowElement;
+
+static Ttk_ElementOptionSpec RowElementOptions[] =
+{
+ { "-background", TK_OPTION_COLOR,
+ Tk_Offset(RowElement,backgroundObj), DEFAULT_BACKGROUND },
+ { "-rownumber", TK_OPTION_INT,
+ Tk_Offset(RowElement,rowNumberObj), "0" },
+ {NULL}
+};
+
+static void RowElementDraw(
+ void *clientData, void *elementRecord, Tk_Window tkwin,
+ Drawable d, Ttk_Box b, Ttk_State state)
+{
+ RowElement *row = elementRecord;
+ XColor *color = Tk_GetColorFromObj(tkwin, row->backgroundObj);
+ GC gc = Tk_GCForColor(color, d);
+ XFillRectangle(Tk_Display(tkwin), d, gc,
+ b.x, b.y, b.width, b.height);
+}
+
+static Ttk_ElementSpec RowElementSpec =
+{
+ TK_STYLE_VERSION_2,
+ sizeof(RowElement),
+ RowElementOptions,
+ NullElementGeometry,
+ RowElementDraw
+};
+
+/*------------------------------------------------------------------------
+ * +++ Initialisation.
+ */
+DLLEXPORT int Treeview_Init(Tcl_Interp *interp)
+{
+ Ttk_Theme theme = Ttk_GetDefaultTheme(interp);
+
+ RegisterWidget(interp, "ttk::treeview", &TreeviewWidgetSpec);
+
+ Ttk_RegisterElement(interp, theme,
+ "Treeitem.indicator", &TreeitemIndicatorElementSpec, 0);
+ Ttk_RegisterElement(interp, theme, "Treeitem.row", &RowElementSpec, 0);
+ Ttk_RegisterElement(interp, theme, "Treeheading.cell", &RowElementSpec, 0);
+
+ Ttk_RegisterLayout(theme, TreeviewWidgetSpec.className, TreeviewLayout);
+ Ttk_RegisterLayout(theme, "Item", ItemLayout);
+ Ttk_RegisterLayout(theme, "Cell", CellLayout);
+ Ttk_RegisterLayout(theme, "Heading", HeadingLayout);
+ Ttk_RegisterLayout(theme, "Row", RowLayout);
+
+ Tcl_PkgProvide(interp, "ttk::treeview", TTK_VERSION);
+
+ return TCL_OK;
+}
+
+/*EOF*/