--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/tree.c Wed Dec 09 11:32:01 2020 +0100
@@ -0,0 +1,562 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2017 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "../common/context.h"
+#include "../common/object.h"
+#include "container.h"
+
+#include "tree.h"
+
+
+void* ui_strmodel_getvalue(void *elm, int column) {
+ return column == 0 ? elm : NULL;
+}
+
+
+UIWIDGET ui_listview_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
+ return ui_listview(obj, list, ui_strmodel_getvalue, f, udata);
+}
+
+UIWIDGET ui_listview_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
+ // create treeview
+ GtkWidget *view = gtk_tree_view_new();
+ GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
+ GtkTreeViewColumn *column = gtk_tree_view_column_new_with_attributes(NULL, renderer, "text", 0, NULL);
+ gtk_tree_view_append_column(GTK_TREE_VIEW(view), column);
+
+ gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);
+#ifdef UI_GTK3
+#if GTK_MINOR_VERSION >= 8
+ gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE);
+#else
+ // TODO: implement for older gtk3
+#endif
+#else
+ // TODO: implement for gtk2
+#endif
+
+ UiModel *model = ui_model(obj->ctx, UI_STRING, "", -1);
+ model->getvalue = getvalue;
+ UiList *list = var->value;
+ UiListModel *listmodel = ui_list_model_new(obj, var, model);
+ gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(listmodel));
+
+ UiListView *listview = malloc(sizeof(UiListView));
+ listview->obj = obj;
+ listview->widget = view;
+ listview->var = var;
+ listview->model = model;
+ g_signal_connect(
+ view,
+ "destroy",
+ G_CALLBACK(ui_listview_destroy),
+ listview);
+
+ // bind var
+ list->update = ui_listview_update;
+ list->obj = listview;
+
+ // add callback
+ if(f) {
+ UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
+ event->obj = obj;
+ event->userdata = udata;
+ event->activate = f;
+ event->selection = NULL;
+
+ g_signal_connect(
+ view,
+ "row-activated",
+ G_CALLBACK(ui_listview_activate_event),
+ event);
+ }
+
+ // add widget to the current container
+ GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL);
+ gtk_scrolled_window_set_policy(
+ GTK_SCROLLED_WINDOW(scroll_area),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
+ gtk_container_add(GTK_CONTAINER(scroll_area), view);
+
+ UiContainer *ct = uic_get_current_container(obj);
+ ct->add(ct, scroll_area, TRUE);
+
+ // ct->current should point to view, not scroll_area, to make it possible
+ // to add a context menu
+ ct->current = view;
+
+ return scroll_area;
+}
+
+UIWIDGET ui_listview(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
+ UiVar *var = malloc(sizeof(UiVar));
+ var->value = list;
+ var->type = UI_VAR_SPECIAL;
+ return ui_listview_var(obj, var, getvalue, f, udata);
+}
+
+UIWIDGET ui_listview_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
+ UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
+ if(var) {
+ return ui_listview_var(obj, var, getvalue, f, udata);
+ } else {
+ // TODO: error
+ }
+ return NULL;
+}
+
+static void drag_begin(GtkWidget *widget, GdkDragContext *context, gpointer udata) {
+ printf("drag begin\n");
+
+}
+
+static void drag_end(
+ GtkWidget *widget,
+ GdkDragContext *context,
+ guint time,
+ gpointer udata)
+{
+ printf("drag end\n");
+
+}
+
+static GtkTargetEntry targetentries[] =
+ {
+ { "STRING", 0, 0 },
+ { "text/plain", 0, 1 },
+ { "text/uri-list", 0, 2 },
+ };
+
+UIWIDGET ui_table_var(UiObject *obj, UiVar *var, UiModel *model, UiListCallbacks cb) {
+ // create treeview
+ GtkWidget *view = gtk_tree_view_new();
+
+ int addi = 0;
+ for(int i=0;i<model->columns;i++) {
+ GtkTreeViewColumn *column = NULL;
+ if(model->types[i] == UI_ICON_TEXT) {
+ column = gtk_tree_view_column_new();
+ gtk_tree_view_column_set_title(column, model->titles[i]);
+
+ GtkCellRenderer *iconrenderer = gtk_cell_renderer_pixbuf_new();
+ GtkCellRenderer *textrenderer = gtk_cell_renderer_text_new();
+
+ gtk_tree_view_column_pack_end(column, textrenderer, TRUE);
+ gtk_tree_view_column_pack_start(column, iconrenderer, FALSE);
+
+
+ gtk_tree_view_column_add_attribute(column, iconrenderer, "pixbuf", i);
+ gtk_tree_view_column_add_attribute(column, textrenderer, "text", i+1);
+
+ addi++;
+ } else {
+ GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
+ column = gtk_tree_view_column_new_with_attributes(
+ model->titles[i],
+ renderer,
+ "text",
+ i + addi,
+ NULL);
+ }
+ gtk_tree_view_column_set_resizable(column, TRUE);
+ gtk_tree_view_append_column(GTK_TREE_VIEW(view), column);
+ }
+
+ //gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);
+#ifdef UI_GTK3
+ //gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE);
+#else
+
+#endif
+
+ UiList *list = var->value;
+ UiListModel *listmodel = ui_list_model_new(obj, var, model);
+ gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(listmodel));
+
+ //g_signal_connect(view, "drag-begin", G_CALLBACK(drag_begin), NULL);
+ //g_signal_connect(view, "drag-end", G_CALLBACK(drag_end), NULL);
+
+ // add TreeView as observer to the UiList to update the TreeView if the
+ // data changes
+ UiListView *tableview = malloc(sizeof(UiListView));
+ tableview->obj = obj;
+ tableview->widget = view;
+ tableview->var = var;
+ tableview->model = model;
+ g_signal_connect(
+ view,
+ "destroy",
+ G_CALLBACK(ui_listview_destroy),
+ tableview);
+
+ // bind var
+ list->update = ui_listview_update;
+ list->obj = tableview;
+
+ // add callback
+ UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
+ event->obj = obj;
+ event->activate = cb.activate;
+ event->selection = cb.selection;
+ event->userdata = cb.userdata;
+ if(cb.activate) {
+ g_signal_connect(
+ view,
+ "row-activated",
+ G_CALLBACK(ui_listview_activate_event),
+ event);
+ }
+ if(cb.selection) {
+ GtkTreeSelection *selection = gtk_tree_view_get_selection(
+ GTK_TREE_VIEW(view));
+ g_signal_connect(
+ selection,
+ "changed",
+ G_CALLBACK(ui_listview_selection_event),
+ event);
+ }
+ // TODO: destroy callback
+
+
+ GtkTreeSelection *selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(view));
+ gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
+
+ // add widget to the current container
+ GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL);
+ gtk_scrolled_window_set_policy(
+ GTK_SCROLLED_WINDOW(scroll_area),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
+ gtk_container_add(GTK_CONTAINER(scroll_area), view);
+
+ UiContainer *ct = uic_get_current_container(obj);
+ ct->add(ct, scroll_area, TRUE);
+
+ // ct->current should point to view, not scroll_area, to make it possible
+ // to add a context menu
+ ct->current = view;
+
+ return scroll_area;
+}
+
+UIWIDGET ui_table(UiObject *obj, UiList *list, UiModel *model, UiListCallbacks cb) {
+ UiVar *var = malloc(sizeof(UiVar));
+ var->value = list;
+ var->type = UI_VAR_SPECIAL;
+ return ui_table_var(obj, var, model, cb);
+}
+
+UIWIDGET ui_table_nv(UiObject *obj, char *varname, UiModel *model, UiListCallbacks cb) {
+ UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
+ if(var) {
+ return ui_table_var(obj, var, model, cb);
+ } else {
+ // TODO: error
+ }
+ return NULL;
+}
+
+GtkWidget* ui_get_tree_widget(UIWIDGET widget) {
+ GList *c = gtk_container_get_children(GTK_CONTAINER(widget));
+ if(c) {
+ return c->data;
+ }
+ return NULL;
+}
+
+static char** targets2array(char *target0, va_list ap, int *nelm) {
+ int al = 16;
+ char **targets = calloc(16, sizeof(char*));
+ targets[0] = target0;
+
+ int i = 1;
+ char *target;
+ while((target = va_arg(ap, char*)) != NULL) {
+ if(i >= al) {
+ al *= 2;
+ targets = realloc(targets, al*sizeof(char*));
+ }
+ targets[i] = target;
+ i++;
+ }
+
+ *nelm = i;
+ return targets;
+}
+
+static GtkTargetEntry* targetstr2gtktargets(char **str, int nelm) {
+ GtkTargetEntry *targets = calloc(nelm, sizeof(GtkTargetEntry));
+ for(int i=0;i<nelm;i++) {
+ targets[i].target = str[i];
+ }
+ return targets;
+}
+
+void ui_table_dragsource(UIWIDGET tablewidget, int actions, char *target0, ...) {
+ va_list ap;
+ va_start(ap, target0);
+ int nelm;
+ char **targets = targets2array(target0, ap, &nelm);
+ va_end(ap);
+ ui_table_dragsource_a(tablewidget, actions, targets, nelm);
+ free(targets);
+}
+
+void ui_table_dragsource_a(UIWIDGET tablewidget, int actions, char **targets, int nelm) {
+ GtkTargetEntry* t = targetstr2gtktargets(targets, nelm);
+ gtk_tree_view_enable_model_drag_source(
+ GTK_TREE_VIEW(ui_get_tree_widget(tablewidget)),
+ GDK_BUTTON1_MASK,
+ t,
+ nelm,
+ GDK_ACTION_COPY|GDK_ACTION_MOVE|GDK_ACTION_LINK);
+ free(t);
+}
+
+void ui_table_dragdest(UIWIDGET tablewidget, int actions, char *target0, ...) {
+ va_list ap;
+ va_start(ap, target0);
+ int nelm;
+ char **targets = targets2array(target0, ap, &nelm);
+ va_end(ap);
+ ui_table_dragdest_a(tablewidget, actions, targets, nelm);
+ free(targets);
+}
+
+void ui_table_dragdest_a(UIWIDGET tablewidget, int actions, char **targets, int nelm) {
+ GtkTargetEntry* t = targetstr2gtktargets(targets, nelm);
+ gtk_tree_view_enable_model_drag_dest(
+ GTK_TREE_VIEW(ui_get_tree_widget(tablewidget)),
+ t,
+ nelm,
+ GDK_ACTION_COPY|GDK_ACTION_MOVE|GDK_ACTION_LINK);
+ free(t);
+}
+
+void ui_listview_update(UiList *list, int i) {
+ UiListView *view = list->obj;
+ UiListModel *model = ui_list_model_new(view->obj, view->var, view->model);
+ gtk_tree_view_set_model(GTK_TREE_VIEW(view->widget), GTK_TREE_MODEL(model));
+ g_object_unref(G_OBJECT(model));
+ // TODO: free old model
+}
+
+void ui_listview_destroy(GtkWidget *w, UiListView *v) {
+ gtk_tree_view_set_model(GTK_TREE_VIEW(w), NULL);
+ ui_destroy_boundvar(v->obj->ctx, v->var);
+ // TODO: destroy model?
+ free(v);
+}
+
+void ui_combobox_destroy(GtkWidget *w, UiListView *v) {
+ gtk_combo_box_set_model(GTK_COMBO_BOX(w), NULL);
+ ui_destroy_boundvar(v->obj->ctx, v->var);
+ // TODO: destroy model?
+ free(v);
+}
+
+
+void ui_listview_activate_event(
+ GtkTreeView *treeview,
+ GtkTreePath *path,
+ GtkTreeViewColumn *column,
+ UiTreeEventData *event)
+{
+ UiListSelection *selection = ui_listview_selection(
+ gtk_tree_view_get_selection(treeview),
+ event);
+
+ UiEvent e;
+ e.obj = event->obj;
+ e.window = event->obj->window;
+ e.document = event->obj->ctx->document;
+ e.eventdata = selection;
+ e.intval = selection->count > 0 ? selection->rows[0] : -1;
+ event->activate(&e, event->userdata);
+
+ if(selection->count > 0) {
+ free(selection->rows);
+ }
+ free(selection);
+}
+
+void ui_listview_selection_event(
+ GtkTreeSelection *treeselection,
+ UiTreeEventData *event)
+{
+ UiListSelection *selection = ui_listview_selection(treeselection, event);
+
+ UiEvent e;
+ e.obj = event->obj;
+ e.window = event->obj->window;
+ e.document = event->obj->ctx->document;
+ e.eventdata = selection;
+ e.intval = selection->count > 0 ? selection->rows[0] : -1;
+ event->selection(&e, event->userdata);
+
+ if(selection->count > 0) {
+ free(selection->rows);
+ }
+ free(selection);
+}
+
+UiListSelection* ui_listview_selection(
+ GtkTreeSelection *selection,
+ UiTreeEventData *event)
+{
+ GList *rows = gtk_tree_selection_get_selected_rows(selection, NULL);
+
+ UiListSelection *ls = malloc(sizeof(UiListSelection));
+ ls->count = g_list_length(rows);
+ ls->rows = calloc(ls->count, sizeof(int));
+ GList *r = rows;
+ int i = 0;
+ while(r) {
+ GtkTreePath *path = r->data;
+ ls->rows[i] = ui_tree_path_list_index(path);
+ r = r->next;
+ i++;
+ }
+ return ls;
+}
+
+int ui_tree_path_list_index(GtkTreePath *path) {
+ int depth = gtk_tree_path_get_depth(path);
+ if(depth == 0) {
+ fprintf(stderr, "UiError: treeview selection: depth == 0\n");
+ return -1;
+ }
+ int *indices = gtk_tree_path_get_indices(path);
+ return indices[depth - 1];
+}
+
+
+/* --------------------------- ComboBox --------------------------- */
+
+UIWIDGET ui_combobox_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
+ return ui_combobox(obj, list, ui_strmodel_getvalue, f, udata);
+}
+
+UIWIDGET ui_combobox(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
+ UiVar *var = malloc(sizeof(UiVar));
+ var->value = list;
+ var->type = UI_VAR_SPECIAL;
+ return ui_combobox_var(obj, var, getvalue, f, udata);
+}
+
+UIWIDGET ui_combobox_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
+ UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
+ if(var) {
+ return ui_combobox_var(obj, var, getvalue, f, udata);
+ } else {
+ // TODO: error
+ }
+ return NULL;
+}
+
+UIWIDGET ui_combobox_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
+ UiModel *model = ui_model(obj->ctx, UI_STRING, "", -1);
+ model->getvalue = getvalue;
+ UiListModel *listmodel = ui_list_model_new(obj, var, model);
+
+ GtkWidget *combobox = ui_create_combobox(obj, listmodel, f, udata);
+ UiContainer *ct = uic_get_current_container(obj);
+ ct->add(ct, combobox, FALSE);
+ return combobox;
+}
+
+GtkWidget* ui_create_combobox(UiObject *obj, UiListModel *model, ui_callback f, void *udata) {
+ GtkWidget *combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
+
+ UiListView *uicbox = malloc(sizeof(UiListView));
+ uicbox->obj = obj;
+ uicbox->widget = combobox;
+ uicbox->var = model->var;
+ uicbox->model = model->model;
+
+ g_signal_connect(
+ combobox,
+ "destroy",
+ G_CALLBACK(ui_combobox_destroy),
+ uicbox);
+
+ // bind var
+ UiList *list = model->var->value;
+ list->update = ui_combobox_modelupdate;
+ list->obj = uicbox;
+
+ GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
+ gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), renderer, TRUE);
+ gtk_cell_layout_set_attributes(
+ GTK_CELL_LAYOUT(combobox),
+ renderer,
+ "text",
+ 0,
+ NULL);
+ gtk_combo_box_set_active(GTK_COMBO_BOX(combobox), 0);
+
+ // add callback
+ if(f) {
+ UiEventData *event = ui_malloc(obj->ctx, sizeof(UiEventData));
+ event->obj = obj;
+ event->userdata = udata;
+ event->callback = f;
+ event->value = 0;
+
+ g_signal_connect(
+ combobox,
+ "changed",
+ G_CALLBACK(ui_combobox_change_event),
+ event);
+ }
+
+ return combobox;
+}
+
+void ui_combobox_change_event(GtkComboBox *widget, UiEventData *e) {
+ UiEvent event;
+ event.obj = e->obj;
+ event.window = event.obj->window;
+ event.document = event.obj->ctx->document;
+ event.eventdata = NULL;
+ event.intval = gtk_combo_box_get_active(widget);
+ e->callback(&event, e->userdata);
+}
+
+void ui_combobox_modelupdate(UiList *list, int i) {
+ UiListView *view = list->obj;
+ UiListModel *model = ui_list_model_new(view->obj, view->var, view->model);
+ gtk_combo_box_set_model(GTK_COMBO_BOX(view->widget), GTK_TREE_MODEL(model));
+}
+