ui/gtk/list.c

changeset 100
d2bd73d28ff1
parent 98
16e84fac48bd
--- a/ui/gtk/list.c	Fri Nov 29 22:21:36 2024 +0100
+++ b/ui/gtk/list.c	Thu Dec 12 20:01:43 2024 +0100
@@ -36,6 +36,7 @@
 #include "container.h"
 
 #include <cx/array_list.h>
+#include <cx/linked_list.h>
 
 #include "list.h"
 #include "icon.h"
@@ -982,3 +983,296 @@
         gtk_combo_box_set_active(GTK_COMBO_BOX(combobox->widget), selection.rows[0]);
     }
 }
+
+
+/* ------------------------------ Source List ------------------------------ */
+
+static void ui_destroy_sourcelist(GtkWidget *w, UiListBox *v) {
+    cxListDestroy(v->sublists);
+    free(v);
+}
+
+static void sublist_destroy(UiObject *obj, UiListBoxSubList *sublist) {
+    free(sublist->header);
+    ui_destroy_boundvar(obj->ctx, sublist->var);
+    cxListDestroy(sublist->widgets);
+}
+
+static void listbox_create_header(GtkListBoxRow* row, GtkListBoxRow* before, gpointer user_data) {
+    // first rows in sublists have the ui_listbox property
+    UiListBox *listbox = g_object_get_data(G_OBJECT(row), "ui_listbox");
+    if(!listbox) {
+        return;
+    }
+    
+    UiListBoxSubList *sublist = g_object_get_data(G_OBJECT(row), "ui_listbox_sublist");
+    if(!sublist) {
+        return;
+    }
+    
+    if(sublist->separator) {
+        GtkWidget *separator = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
+        gtk_list_box_row_set_header(row, separator);
+    } else if(sublist->header) {
+        GtkWidget *header = gtk_label_new(sublist->header);
+        gtk_widget_set_halign(header, GTK_ALIGN_START);
+        if(row == listbox->first_row) {
+            WIDGET_ADD_CSS_CLASS(header, "ui-listbox-header-first");
+        } else {
+            WIDGET_ADD_CSS_CLASS(header, "ui-listbox-header");
+        }
+        gtk_list_box_row_set_header(row, header);
+    }
+} 
+
+#ifdef UI_GTK3
+typedef struct _UiSidebarListBoxClass {
+    GtkListBoxClass parent_class; 
+} UiSidebarListBoxClass;
+
+typedef struct _UiSidebarListBox {
+    GtkListBox parent_instance;
+} UiSidebarListBox;
+
+G_DEFINE_TYPE(UiSidebarListBox, ui_sidebar_list_box, GTK_TYPE_LIST_BOX)
+
+/* Initialize the instance */
+static void ui_sidebar_list_box_class_init(UiSidebarListBoxClass *klass) {
+    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
+    gtk_widget_class_set_css_name (widget_class, "placessidebar");
+}
+
+static void ui_sidebar_list_box_init(UiSidebarListBox *self) {
+    
+}
+#endif
+
+UIEXPORT UIWIDGET ui_sourcelist_create(UiObject *obj, UiSourceListArgs args) {
+    UiObject* current = uic_current_obj(obj);
+    
+#ifdef UI_GTK3
+    GtkWidget *listbox = g_object_new(ui_sidebar_list_box_get_type(), NULL);
+#else
+    GtkWidget *listbox = gtk_list_box_new();
+#endif
+    if(!args.style_class) {
+#if GTK_MAJOR_VERSION >= 4
+        WIDGET_ADD_CSS_CLASS(listbox, "navigation-sidebar");
+#else
+        WIDGET_ADD_CSS_CLASS(listbox, "sidebar");
+#endif
+    }
+    gtk_list_box_set_header_func(GTK_LIST_BOX(listbox), listbox_create_header, NULL, NULL);
+    GtkWidget *scroll_area = SCROLLEDWINDOW_NEW();
+    SCROLLEDWINDOW_SET_CHILD(scroll_area, listbox);
+    
+    ui_set_name_and_style(listbox, args.name, args.style_class);
+    ui_set_widget_groups(obj->ctx, listbox, args.groups);
+    UI_APPLY_LAYOUT1(current, args);
+    current->container->add(current->container, scroll_area, TRUE);
+    
+    UiListBox *uilistbox = malloc(sizeof(UiListBox));
+    uilistbox->obj = obj;
+    uilistbox->listbox = GTK_LIST_BOX(listbox);
+    uilistbox->getvalue = args.getvalue;
+    uilistbox->onactivate = args.onactivate;
+    uilistbox->onactivatedata = args.onactivatedata;
+    uilistbox->onbuttonclick = args.onbuttonclick;
+    uilistbox->onbuttonclickdata = args.onbuttonclickdata;
+    uilistbox->sublists = cxArrayListCreateSimple(sizeof(UiListBoxSubList), 4);
+    uilistbox->sublists->collection.advanced_destructor = (cx_destructor_func2)sublist_destroy;
+    uilistbox->sublists->collection.destructor_data = obj;
+    uilistbox->first_row = NULL;
+    
+    if(args.numsublists == 0 && args.sublists) {
+        args.numsublists = INT_MAX;
+    }
+    for(int i=0;i<args.numsublists;i++) {
+        UiSubList sublist = args.sublists[i];
+        if(!sublist.varname && !sublist.value) {
+            break;
+        }
+        
+        UiListBoxSubList uisublist;
+        uisublist.var = uic_widget_var(
+                obj->ctx,
+                current->ctx,
+                sublist.value,
+                sublist.varname,
+                UI_VAR_LIST);
+        uisublist.numitems = 0;
+        uisublist.header = sublist.header ? strdup(sublist.header) : NULL;
+        uisublist.separator = sublist.separator;
+        uisublist.widgets = cxLinkedListCreateSimple(CX_STORE_POINTERS);
+        uisublist.listbox = uilistbox;
+        uisublist.userdata = sublist.userdata;
+        uisublist.index = i;
+        
+        cxListAdd(uilistbox->sublists, &uisublist);
+        
+        // bind UiList
+        UiListBoxSubList *sublist_ptr = cxListAt(uilistbox->sublists, cxListSize(uilistbox->sublists)-1);
+        UiList *list = uisublist.var->value;
+        if(list) {
+            list->obj = sublist_ptr;
+            list->update = ui_listbox_list_update;
+        }
+    }
+    // fill items
+    ui_listbox_update(uilistbox, 0, cxListSize(uilistbox->sublists));
+    
+    // register uilistbox for both widgets, so it doesn't matter which
+    // widget is used later
+    g_object_set_data(G_OBJECT(scroll_area), "ui_listbox", uilistbox);
+    g_object_set_data(G_OBJECT(listbox), "ui_listbox", uilistbox);
+    
+    // signals
+    g_signal_connect(
+                listbox,
+                "destroy",
+                G_CALLBACK(ui_destroy_sourcelist),
+                uilistbox);
+    
+    if(args.onactivate) {
+        g_signal_connect(
+                listbox,
+                "row-activated",
+                G_CALLBACK(ui_listbox_row_activate),
+                NULL);
+    }
+    
+    return scroll_area;
+}
+
+void ui_listbox_update(UiListBox *listbox, int from, int to) {
+    CxIterator i = cxListIterator(listbox->sublists);
+    size_t pos = 0;
+    cx_foreach(UiListBoxSubList *, sublist, i) {
+        if(i.index < from) {
+            pos += sublist->numitems;
+            continue;
+        }
+        if(i.index > to) {
+            break;
+        }
+        
+        // reload sublist
+        ui_listbox_update_sublist(listbox, sublist, pos);
+        pos += sublist->numitems;
+    }
+}
+
+static GtkWidget* create_listbox_row(UiListBox *listbox, UiListBoxSubList *sublist, UiSubListItem *item, int index) {
+    GtkWidget *hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 10);
+    if(item->icon) {
+        GtkWidget *icon = ICON_IMAGE(item->icon);
+        BOX_ADD(hbox, icon);
+    }
+    GtkWidget *label = gtk_label_new(item->label);
+    gtk_widget_set_halign(label, GTK_ALIGN_START);
+    BOX_ADD_EXPAND(hbox, label);
+    // TODO: badge, button
+    GtkWidget *row = gtk_list_box_row_new();
+    LISTBOX_ROW_SET_CHILD(row, hbox);
+    
+    // signals 
+    UiEventDataExt *event = malloc(sizeof(UiEventDataExt));
+    memset(event, 0, sizeof(UiEventDataExt));
+    event->obj = listbox->obj;
+    event->customdata0 = sublist;
+    event->customdata1 = sublist->var;
+    event->customdata2 = item->eventdata;
+    event->callback = listbox->onactivate;
+    event->userdata = listbox->onactivatedata;
+    event->callback2 = listbox->onbuttonclick;
+    event->userdata2 = listbox->onbuttonclickdata;
+    event->value0 = index;
+    
+    g_signal_connect(
+            row,
+            "destroy",
+            G_CALLBACK(ui_destroy_userdata),
+            event);
+    
+    g_object_set_data(G_OBJECT(row), "ui-listbox-row-eventdata", event);
+    
+    return row;
+}
+
+void ui_listbox_update_sublist(UiListBox *listbox, UiListBoxSubList *sublist, size_t listbox_insert_index) {
+    // clear sublist
+    CxIterator r = cxListIterator(sublist->widgets);
+    cx_foreach(GtkWidget*, widget, r) {
+        LISTBOX_REMOVE(listbox->listbox, widget);
+    }
+    cxListClear(sublist->widgets);
+    
+    sublist->numitems = 0;
+    
+    // create items for each UiList element
+    UiList *list = sublist->var->value;
+    if(!list) {
+        return;
+    }
+    
+    size_t index = 0;
+    void *elm = list->first(list);
+    while(elm) {
+        UiSubListItem item = { NULL, NULL, NULL, NULL, NULL, NULL };
+        listbox->getvalue(sublist->userdata, elm, index, &item);
+        
+        // create listbox item
+        GtkWidget *row = create_listbox_row(listbox, sublist, &item, (int)index);
+        if(index == 0) {
+            // first row in the sublist, set ui_listbox data to the row
+            // which is then used by the headerfunc
+            g_object_set_data(G_OBJECT(row), "ui_listbox", listbox);
+            g_object_set_data(G_OBJECT(row), "ui_listbox_sublist", sublist);
+            
+            if(listbox_insert_index == 0) {
+                // first row in the GtkListBox
+                listbox->first_row = GTK_LIST_BOX_ROW(row);
+            }
+        }
+        intptr_t rowindex = listbox_insert_index + index;
+        g_object_set_data(G_OBJECT(row), "ui_listbox_row_index", (gpointer)rowindex);
+        gtk_list_box_insert(listbox->listbox, row, listbox_insert_index + index);
+        cxListAdd(sublist->widgets, row);
+        
+        // cleanup
+        free(item.label);
+        free(item.icon);
+        free(item.button_label);
+        free(item.button_icon);
+        free(item.badge);
+        
+        // next row
+        elm = list->next(list);
+        index++;
+    }
+    
+    sublist->numitems = cxListSize(sublist->widgets);
+}
+
+void ui_listbox_list_update(UiList *list, int i) {
+    UiListBoxSubList *sublist = list->obj;
+}
+
+void ui_listbox_row_activate(GtkListBox *self, GtkListBoxRow *row, gpointer user_data) {
+    UiEventDataExt *data = g_object_get_data(G_OBJECT(row), "ui-listbox-row-eventdata");
+    if(!data) {
+        return;
+    }
+    UiListBoxSubList *sublist = data->customdata0;
+    
+    UiEvent event;
+    event.obj = data->obj;
+    event.window = event.obj->window;
+    event.document = event.obj->ctx->document;
+    event.eventdata = data->customdata2;
+    event.intval = data->value0;
+    
+    if(data->callback) {
+        data->callback(&event, data->userdata);
+    }
+}

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