From e7d280e5e1fa53abe1c053bf082ea4c21fcd14ed Mon Sep 17 00:00:00 2001 From: Pietro Gagliardi Date: Mon, 17 Feb 2014 15:49:02 -0500 Subject: Split the GTK+ ListBox implementation into its own file. --- listbox_unix.go | 161 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 161 insertions(+) create mode 100644 listbox_unix.go (limited to 'listbox_unix.go') diff --git a/listbox_unix.go b/listbox_unix.go new file mode 100644 index 0000000..7566f19 --- /dev/null +++ b/listbox_unix.go @@ -0,0 +1,161 @@ +// +build !windows,!darwin,!plan9 + +// 17 february 2014 +package main + +import ( + "unsafe" +) + +// TODOs: +// - document the magic stuff in the listbox code + +// #cgo pkg-config: gtk+-3.0 +// #include +// #include +// /* because cgo seems to choke on ... */ +// void gtkTreeModelGet(GtkTreeModel *model, GtkTreeIter *iter, gchar **gs) { gtk_tree_model_get(model, iter, 0, gs, -1); } +// GtkListStore *gtkListStoreNew(void) { return gtk_list_store_new(1, G_TYPE_STRING); } +// void gtkListStoreSet(GtkListStore *ls, GtkTreeIter *iter, char *gs) { gtk_list_store_set(ls, iter, 0, (gchar *) gs, -1); } +// GtkTreeViewColumn *gtkTreeViewColumnNewWithAttributes(GtkCellRenderer *renderer) { return gtk_tree_view_column_new_with_attributes("", renderer, "text", 0, NULL); } +import "C" + +func gListboxNew(multisel bool) *gtkWidget { + store := C.gtkListStoreNew() + widget := C.gtk_tree_view_new_with_model((*C.GtkTreeModel)(unsafe.Pointer(store))) + tv := (*C.GtkTreeView)(unsafe.Pointer(widget)) + column := C.gtkTreeViewColumnNewWithAttributes(C.gtk_cell_renderer_text_new()) + // TODO set AUTOSIZE? + C.gtk_tree_view_append_column(tv, column) + C.gtk_tree_view_set_headers_visible(tv, C.FALSE) + sel := C.GTK_SELECTION_SINGLE + if multisel { + sel = C.GTK_SELECTION_MULTIPLE + } + C.gtk_tree_selection_set_mode(C.gtk_tree_view_get_selection(tv), C.GtkSelectionMode(sel)) + scrollarea := C.gtk_scrolled_window_new((*C.GtkAdjustment)(nil), (*C.GtkAdjustment)(nil)) + C.gtk_container_add((*C.GtkContainer)(unsafe.Pointer(scrollarea)), widget) + return (*gtkWidget)(unsafe.Pointer(scrollarea)) +} + +func gListboxNewSingle() *gtkWidget { + return gListboxNew(false) +} + +func gListboxNewMulti() *gtkWidget { + return gListboxNew(true) +} + +func getTreeViewFrom(widget *gtkWidget) *C.GtkWidget { + return C.gtk_bin_get_child((*C.GtkBin)(unsafe.Pointer(widget))) +} + +func gListboxText(widget *gtkWidget) string { + var model *C.GtkTreeModel + var iter C.GtkTreeIter + var gs *C.gchar + + tv := (*C.GtkTreeView)(unsafe.Pointer(getTreeViewFrom(widget))) + sel := C.gtk_tree_view_get_selection(tv) + if !fromgbool(C.gtk_tree_selection_get_selected(sel, &model, &iter)) { + return "" + } + C.gtkTreeModelGet(model, &iter, &gs) + return C.GoString((*C.char)(unsafe.Pointer(gs))) +} + +func gListboxAppend(widget *gtkWidget, what string) { + var iter C.GtkTreeIter + + tv := (*C.GtkTreeView)(unsafe.Pointer(getTreeViewFrom(widget))) + ls := (*C.GtkListStore)(unsafe.Pointer(C.gtk_tree_view_get_model(tv))) + C.gtk_list_store_append(ls, &iter) + cwhat := C.CString(what) + defer C.free(unsafe.Pointer(cwhat)) + C.gtkListStoreSet(ls, &iter, cwhat) +} + +func gListboxInsert(widget *gtkWidget, index int, what string) { + var iter C.GtkTreeIter + + tv := (*C.GtkTreeView)(unsafe.Pointer(getTreeViewFrom(widget))) + ls := (*C.GtkListStore)(unsafe.Pointer(C.gtk_tree_view_get_model(tv))) + C.gtk_list_store_insert(ls, &iter, C.gint(index)) + cwhat := C.CString(what) + defer C.free(unsafe.Pointer(cwhat)) + C.gtkListStoreSet(ls, &iter, cwhat) +} + +func gListboxSelected(widget *gtkWidget) int { + var model *C.GtkTreeModel + var iter C.GtkTreeIter + + tv := (*C.GtkTreeView)(unsafe.Pointer(getTreeViewFrom(widget))) + sel := C.gtk_tree_view_get_selection(tv) + if !fromgbool(C.gtk_tree_selection_get_selected(sel, &model, &iter)) { + return -1 + } + path := C.gtk_tree_model_get_path(model, &iter) + idx := C.gtk_tree_path_get_indices(path) + return int(*idx) +} + +func gListboxSelectedMulti(widget *gtkWidget) (indices []int) { + var model *C.GtkTreeModel + + tv := (*C.GtkTreeView)(unsafe.Pointer(getTreeViewFrom(widget))) + sel := C.gtk_tree_view_get_selection(tv) + rows := C.gtk_tree_selection_get_selected_rows(sel, &model) + defer C.g_list_free_full(rows, C.GDestroyNotify(unsafe.Pointer(C.gtk_tree_path_free))) + len := C.g_list_length(rows) + if len == 0 { + return nil + } + indices = make([]int, len) + for i := C.guint(0); i < len; i++ { + path := (*C.GtkTreePath)(unsafe.Pointer(rows.data)) + idx := C.gtk_tree_path_get_indices(path) + indices[i] = int(*idx) + rows = rows.next + } + return indices +} + +func gListboxSelMultiTexts(widget *gtkWidget) (texts []string) { + var model *C.GtkTreeModel + var iter C.GtkTreeIter + var gs *C.gchar + + tv := (*C.GtkTreeView)(unsafe.Pointer(getTreeViewFrom(widget))) + sel := C.gtk_tree_view_get_selection(tv) + rows := C.gtk_tree_selection_get_selected_rows(sel, &model) + defer C.g_list_free_full(rows, C.GDestroyNotify(unsafe.Pointer(C.gtk_tree_path_free))) + len := C.g_list_length(rows) + if len == 0 { + return nil + } + texts = make([]string, len) + for i := C.guint(0); i < len; i++ { + path := (*C.GtkTreePath)(unsafe.Pointer(rows.data)) + if !fromgbool(C.gtk_tree_model_get_iter(model, &iter, path)) { + // TODO + return + } + C.gtkTreeModelGet(model, &iter, &gs) + texts[i] = C.GoString((*C.char)(unsafe.Pointer(gs))) + rows = rows.next + } + return texts +} + +func gListboxDelete(widget *gtkWidget, index int) { + var iter C.GtkTreeIter + + tv := (*C.GtkTreeView)(unsafe.Pointer(getTreeViewFrom(widget))) + ls := (*C.GtkListStore)(unsafe.Pointer(C.gtk_tree_view_get_model(tv))) + if !fromgbool(C.gtk_tree_model_iter_nth_child((*C.GtkTreeModel)(unsafe.Pointer(ls)), &iter, (*C.GtkTreeIter)(nil), C.gint(index))) { // no such index + // TODO + return + } + C.gtk_list_store_remove(ls, &iter) +} -- cgit v1.2.3