--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/list.c Thu Oct 03 18:08:29 2024 +0200
@@ -0,0 +1,666 @@
+/*
+ * 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 "list.h"
+#include "image.h"
+
+
+void* ui_strmodel_getvalue(void *elm, int column) {
+ return column == 0 ? elm : NULL;
+}
+
+static GtkListStore* create_list_store(UiList *list, UiModel *model) {
+ int columns = model->columns;
+ GType types[2*columns];
+ int c = 0;
+ for(int i=0;i<columns;i++,c++) {
+ switch(model->types[i]) {
+ case UI_STRING:
+ case UI_STRING_FREE: types[c] = G_TYPE_STRING; break;
+ case UI_INTEGER: types[c] = G_TYPE_INT; break;
+ case UI_ICON: types[c] = G_TYPE_OBJECT; break;
+ case UI_ICON_TEXT:
+ case UI_ICON_TEXT_FREE: {
+ types[c] = G_TYPE_OBJECT;
+ types[++c] = G_TYPE_STRING;
+ }
+ }
+ }
+
+ GtkListStore *store = gtk_list_store_newv(c, types);
+
+ if(list) {
+ void *elm = list->first(list);
+ while(elm) {
+ // insert new row
+ GtkTreeIter iter;
+ gtk_list_store_insert (store, &iter, -1);
+
+ // set column values
+ int c = 0;
+ for(int i=0;i<columns;i++,c++) {
+ void *data = model->getvalue(elm, c);
+
+ GValue value = G_VALUE_INIT;
+ switch(model->types[i]) {
+ case UI_STRING:
+ case UI_STRING_FREE: {
+ g_value_init(&value, G_TYPE_STRING);
+ g_value_set_string(&value, data);
+ if(model->types[i] == UI_STRING_FREE) {
+ free(data);
+ }
+ break;
+ }
+ case UI_INTEGER: {
+ g_value_init(&value, G_TYPE_INT);
+ int *intptr = data;
+ g_value_set_int(&value, *intptr);
+ break;
+ }
+ case UI_ICON: {
+ g_value_init(&value, G_TYPE_OBJECT);
+ UiIcon *icon = data;
+#if GTK_MAJOR_VERSION >= 4
+ g_value_set_object(&value, icon->info); // TODO: does this work?
+#else
+ if(!icon->pixbuf && icon->info) {
+ GError *error = NULL;
+ GdkPixbuf *pixbuf = gtk_icon_info_load_icon(icon->info, &error);
+ icon->pixbuf = pixbuf;
+ }
+
+ if(icon->pixbuf) {
+ g_value_set_object(&value, icon->pixbuf);
+ }
+#endif
+ break;
+ }
+ case UI_ICON_TEXT:
+ case UI_ICON_TEXT_FREE: {
+ UiIcon *icon = data;
+#if GTK_MAJOR_VERSION >= 4
+ GValue iconvalue = G_VALUE_INIT;
+ g_value_init(&iconvalue, G_TYPE_OBJECT);
+ g_value_set_object(&iconvalue, ui_icon_pixbuf(icon));
+ gtk_list_store_set_value(store, &iter, c, &iconvalue);
+#else
+ GValue pixbufvalue = G_VALUE_INIT;
+ if(!icon->pixbuf && icon->info) {
+ GError *error = NULL;
+ GdkPixbuf *pixbuf = gtk_icon_info_load_icon(icon->info, &error);
+ icon->pixbuf = pixbuf;
+ }
+ g_value_init(&pixbufvalue, G_TYPE_OBJECT);
+ g_value_set_object(&pixbufvalue, icon->pixbuf);
+ gtk_list_store_set_value(store, &iter, c, &pixbufvalue);
+#endif
+ c++;
+
+ char *str = model->getvalue(elm, c);
+ g_value_init(&value, G_TYPE_STRING);
+ g_value_set_string(&value, str);
+ if(model->types[i] == UI_ICON_TEXT_FREE) {
+ free(str);
+ }
+ break;
+ }
+ }
+
+ gtk_list_store_set_value(store, &iter, c, &value);
+ }
+
+ // next row
+ elm = list->next(list);
+ }
+ }
+
+ return store;
+}
+
+
+UIWIDGET ui_listview_create(UiObject *obj, UiListArgs args) {
+ UiObject* current = uic_current_obj(obj);
+
+ // 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 = args.getvalue;
+
+ UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
+
+ UiList *list = var ? var->value : NULL;
+ GtkListStore *listmodel = create_list_store(list, 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->getselection = ui_listview_getselection;
+ list->obj = listview;
+
+ // add callback
+ if(args.onactivate) {
+ UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
+ event->obj = obj;
+ event->activatedata = args.onactivatedata;
+ event->activate = args.onactivate;
+ 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 = SCROLLEDWINDOW_NEW();
+ gtk_scrolled_window_set_policy(
+ GTK_SCROLLED_WINDOW(scroll_area),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
+ SCROLLEDWINDOW_SET_CHILD(scroll_area, view);
+
+ UI_APPLY_LAYOUT1(current, args);
+ current->container->add(current->container, scroll_area, FALSE);
+
+ // ct->current should point to view, not scroll_area, to make it possible
+ // to add a context menu
+ current->container->current = view;
+
+ return scroll_area;
+}
+
+/*
+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_create(UiObject *obj, UiListArgs args) {
+ UiObject* current = uic_current_obj(obj);
+
+ // create treeview
+ GtkWidget *view = gtk_tree_view_new();
+
+ UiModel *model = args.model;
+ int columns = model ? model->columns : 0;
+
+ int addi = 0;
+ for(int i=0;i<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 if (model->types[i] == UI_ICON) {
+ GtkCellRenderer *iconrenderer = gtk_cell_renderer_pixbuf_new();
+ column = gtk_tree_view_column_new_with_attributes(
+ model->titles[i],
+ iconrenderer,
+ "pixbuf",
+ i + addi,
+ NULL);
+ } 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
+
+ UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
+
+ UiList *list = var ? var->value : NULL;
+ GtkListStore *listmodel = create_list_store(list, 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->getselection = ui_listview_getselection;
+ list->obj = tableview;
+
+ // add callback
+ UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
+ event->obj = obj;
+ event->activate = args.onactivate;
+ event->selection = args.onselection;
+ event->activatedata = args.onactivatedata;
+ event->selectiondata = args.onselectiondata;
+ if(args.onactivate) {
+ g_signal_connect(
+ view,
+ "row-activated",
+ G_CALLBACK(ui_listview_activate_event),
+ event);
+ }
+ if(args.onselection) {
+ 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 = SCROLLEDWINDOW_NEW();
+ gtk_scrolled_window_set_policy(
+ GTK_SCROLLED_WINDOW(scroll_area),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
+ SCROLLEDWINDOW_SET_CHILD(scroll_area, view);
+
+ UI_APPLY_LAYOUT1(current, args);
+ current->container->add(current->container, scroll_area, FALSE);
+
+ // ct->current should point to view, not scroll_area, to make it possible
+ // to add a context menu
+ current->container->current = view;
+
+ return scroll_area;
+}
+
+
+GtkWidget* ui_get_tree_widget(UIWIDGET widget) {
+ return SCROLLEDWINDOW_GET_CHILD(widget);
+}
+
+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);
+
+ // disabled
+ //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;
+ GtkListStore *store = create_list_store(list, view->model);
+ gtk_tree_view_set_model(GTK_TREE_VIEW(view->widget), GTK_TREE_MODEL(store));
+ g_object_unref(G_OBJECT(store));
+ // TODO: free old model
+}
+
+UiListSelection ui_listview_getselection(UiList *list) {
+ UiListView *view = list->obj;
+ UiListSelection selection = ui_listview_selection(
+ gtk_tree_view_get_selection(GTK_TREE_VIEW(view->widget)),
+ NULL);
+ return selection;
+}
+
+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->activatedata);
+
+ if(selection.count > 0) {
+ free(selection.rows);
+ }
+}
+
+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->selectiondata);
+
+ if(selection.count > 0) {
+ free(selection.rows);
+ }
+}
+
+UiListSelection ui_listview_selection(
+ GtkTreeSelection *selection,
+ UiTreeEventData *event)
+{
+ GList *rows = gtk_tree_selection_get_selected_rows(selection, NULL);
+
+ UiListSelection ls;
+ 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_create(UiObject *obj, UiListArgs args) {
+ UiObject* current = uic_current_obj(obj);
+
+ UiModel *model = ui_model(obj->ctx, UI_STRING, "", -1);
+ model->getvalue = args.getvalue;
+
+ UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
+
+ GtkWidget *combobox = ui_create_combobox(obj, model, var, args.onactivate, args.onactivatedata);
+ UI_APPLY_LAYOUT1(current, args);
+ current->container->add(current->container, combobox, FALSE);
+ current->container->current = combobox;
+ return combobox;
+}
+
+GtkWidget* ui_create_combobox(UiObject *obj, UiModel *model, UiVar *var, ui_callback f, void *udata) {
+ GtkWidget *combobox = gtk_combo_box_new();
+
+ UiListView *uicbox = malloc(sizeof(UiListView));
+ uicbox->obj = obj;
+ uicbox->widget = combobox;
+
+ UiList *list = var ? var->value : NULL;
+ GtkListStore *listmodel = create_list_store(list, model);
+
+ if(listmodel) {
+ gtk_combo_box_set_model(GTK_COMBO_BOX(combobox), GTK_TREE_MODEL(listmodel));
+ }
+
+ uicbox->var = var;
+ uicbox->model = model;
+
+ g_signal_connect(
+ combobox,
+ "destroy",
+ G_CALLBACK(ui_combobox_destroy),
+ uicbox);
+
+ // bind var
+ if(list) {
+ list->update = ui_combobox_modelupdate;
+ // TODO: combobox getselection
+ 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;
+ event->customdata = NULL;
+
+ 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;
+ GtkListStore *store = create_list_store(view->var->value, view->model);
+ gtk_combo_box_set_model(GTK_COMBO_BOX(view->widget), GTK_TREE_MODEL(store));
+}
+