1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2025 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <cx/linked_list.h>
30 #include <cx/buffer.h>
31
32 #include "container.h"
33 #include "widget.h"
34 #include "args.h"
35
36 void ui_container_begin_close(UiObject *obj) {
37 UiContainerX *ct = obj->container_end;
38 ct->close = 1;
39 }
40
41 int ui_container_finish(UiObject *obj) {
42 UiContainerX *ct = obj->container_end;
43 if(ct->close) {
44 ui_end_new(obj);
45 return 0;
46 }
47 return 1;
48 }
49
50 UiContainerX* ui_widget_container(UiWidget *w) {
51 UiContainerX *container = cxZalloc(w->obj->ctx->allocator, sizeof(UiContainerX));
52 container->container = w;
53 return container;
54 }
55
56 cxmutstr ui_container_args_to_string(UiContext *ctx, UiContainerArgs *args) {
57 CxBuffer buf;
58 cxBufferInit(&buf, NULL, 256, ctx->allocator, CX_BUFFER_AUTO_EXTEND | CX_BUFFER_FREE_CONTENTS);
59
60 cxBufferPutString(&buf, "{");
61
62 UI_STANDARD_ARGS(&buf, args);
63 UI_SPACING_ARGS(&buf, args);
64 if(args->def_hfill) cxBufferPutString(&buf, "\"def_hfill\":true,");
65 if(args->def_vfill) cxBufferPutString(&buf, "\"def_vfill\":true,");
66 if(args->def_hexpand) cxBufferPutString(&buf, "\"def_hexpand\":true,");
67 if(args->def_vexpand) cxBufferPutString(&buf, "\"def_vexpand\":true,");
68
69 if(buf.size > 0 && buf.space[buf.size-1] == ',') {
70 buf.space[buf.size-1] = ' ';
71 }
72 cxBufferPutString(&buf, "}");
73 return cx_mutstrn(buf.space, buf.size);
74 }
75
76 static UIWIDGET container_create(UiObject *obj, const char *type, UiContainerArgs *args) {
77 const CxAllocator *a = obj->ctx->allocator;
78 UiWidget *widget = cxZalloc(a, sizeof(UiWidget));
79 widget->obj = obj->widget->obj;
80 widget->type = cx_str(type);
81 widget->args = ui_container_args_to_string(obj->ctx, args);
82 widget->children = cxLinkedListCreate(a, NULL, CX_STORE_POINTERS);
83 widget->serialize = ui_container_serialize;
84
85 UiWidget *parent = obj->container_end->container;
86 cxListAdd(parent->children, widget);
87
88 uic_object_push_container(obj, ui_widget_container(widget));
89 ui_reg_widget((UiWidget*)widget);
90
91 return widget;
92 }
93
94 void ui_serialize_children(UiWidget *w, CxBuffer *buf) {
95 size_t numchildren = cxListSize(w->children);
96 if(numchildren > 0) {
97 cxBufferPutString(buf, ",\"children\":[");
98 CxIterator i = cxListIterator(w->children);
99 cx_foreach(UiWidget *, child, i) {
100 cxmutstr child_str = child->serialize(child);
101 cxBufferWrite(child_str.ptr, 1, child_str.length, buf);
102 if(i.index+1 < numchildren) {
103 cxBufferPut(buf, ',');
104 }
105 }
106 cxBufferPutString(buf, "]");
107 }
108 }
109
110 cxmutstr ui_container_serialize(UiWidget *w) {
111 CxBuffer buf;
112 cxBufferInit(&buf, NULL, 1024, NULL, CX_BUFFER_AUTO_EXTEND | CX_BUFFER_FREE_CONTENTS);
113
114 cxBufferPutString(&buf, "{");
115 ui_serialize_type_obj_id(w, &buf);
116 cxBufferPutString(&buf, ",\"args\":");
117 cxBufferPutString(&buf, w->args.ptr);
118
119 ui_serialize_children(w, &buf);
120
121 cxBufferPutString(&buf, "}\n");
122
123 return cx_mutstrn(buf.space, buf.size);
124 }
125
126 UIWIDGET ui_vbox_create(UiObject *obj, UiContainerArgs *args) {
127 return container_create(obj, "vbox", args);
128 }
129
130 UIWIDGET ui_hbox_create(UiObject *obj, UiContainerArgs *args) {
131 return container_create(obj, "hbox", args);
132 }
133
134 UIWIDGET ui_grid_create(UiObject *obj, UiContainerArgs *args) {
135 return container_create(obj, "grid", args);
136 }
137