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comparison: ui/motif/tree.c

ui/motif/tree.c

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1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2014 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 <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <inttypes.h>
33
34 #include "tree.h"
35
36 #include "container.h"
37 #include "../common/object.h"
38 #include "../common/context.h"
39 #include <cx/utils.h>
40 #include <cx/compare.h>
41 #include <cx/printf.h>
42
43 UIWIDGET ui_table_var(UiObject *obj, UiVar *var, UiModel *model, UiListCallbacks cb) {
44 // TODO: check if modelinfo is complete
45
46 Arg args[32];
47 int n = 0;
48
49 // create scrolled window
50 UiContainer *ct = uic_get_current_container(obj);
51 Widget parent = ct->prepare(ct, args, &n, TRUE);
52
53 XtSetArg(args[n], XmNscrollingPolicy, XmAUTOMATIC);
54 n++;
55 XtSetArg(args[n], XmNshadowThickness, 0);
56 n++;
57 Widget scrollw = XmCreateScrolledWindow(parent, "scroll_win", args, n);
58 ct->add(ct, scrollw);
59 XtManageChild(scrollw);
60
61 // create table headers
62 XmStringTable header = (XmStringTable)XtMalloc(
63 model->columns * sizeof(XmString));
64 for(int i=0;i<model->columns;i++) {
65 header[i] = XmStringCreateLocalized(model->titles[i]);
66 }
67 n = 0;
68 XtSetArg(args[n], XmNdetailColumnHeading, header);
69 n++;
70 XtSetArg(args[n], XmNdetailColumnHeadingCount, model->columns);
71 n++;
72
73 // set res
74 XtSetArg(args[n], XmNlayoutType, XmDETAIL);
75 n++;
76 XtSetArg(args[n], XmNentryViewType, XmSMALL_ICON);
77 n++;
78 XtSetArg(args[n], XmNselectionPolicy, XmSINGLE_SELECT);
79 n++;
80 XtSetArg(args[n], XmNwidth, 600);
81 n++;
82
83 // create widget
84 //UiContainer *ct = uic_get_current_container(obj);
85 //Widget parent = ct->add(ct, args, &n);
86
87 Widget container = XmCreateContainer(scrollw, "table", args, n);
88 XtManageChild(container);
89
90 // add callbacks
91 UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
92 event->obj = obj;
93 event->activate = cb.activate;
94 event->selection = cb.selection;
95 event->userdata = cb.userdata;
96 event->last_selection = NULL;
97 if(cb.selection) {
98 XtAddCallback(
99 container,
100 XmNselectionCallback,
101 (XtCallbackProc)ui_table_select_callback,
102 event);
103 }
104 if(cb.activate) {
105 XtAddCallback(
106 container,
107 XmNdefaultActionCallback,
108 (XtCallbackProc)ui_table_action_callback,
109 event);
110 }
111
112 // add initial data
113 UiList *list = var->value;
114 void *data = list->first(list);
115 int width = 0;
116 while(data) {
117 int w = ui_add_icon_gadget(container, model, data);
118 if(w > width) {
119 width = w;
120 }
121 data = list->next(list);
122 }
123
124 UiTableView *tableview = cxMalloc(obj->ctx->allocator, sizeof(UiTableView));
125 tableview->widget = container;
126 tableview->var = var;
127 tableview->model = model;
128
129 // set new XmContainer width
130 XtVaSetValues(container, XmNwidth, width, NULL);
131
132 // cleanup
133 for(int i=0;i<model->columns;i++) {
134 XmStringFree(header[i]);
135 }
136 XtFree((char*)header);
137
138 return scrollw;
139 }
140
141 UIWIDGET ui_table(UiObject *obj, UiList *data, UiModel *model, UiListCallbacks cb) {
142 UiVar *var = malloc(sizeof(UiVar));
143 var->value = data;
144 var->type = UI_VAR_SPECIAL;
145 return ui_table_var(obj, var, model, cb);
146 }
147
148 void ui_table_update(UiEvent *event, UiTableView *view) {
149 // clear container
150 Widget *children;
151 int nc;
152
153 XtVaGetValues(
154 view->widget,
155 XmNchildren,
156 &children,
157 XmNnumChildren,
158 &nc,
159 NULL);
160
161 for(int i=0;i<nc;i++) {
162 XtDestroyWidget(children[i]);
163 }
164
165 UiList *list = view->var->value;
166
167 void *data = list->first(list);
168 int width = 0;
169 while(data) {
170 int w = ui_add_icon_gadget(view->widget, view->model, data);
171 if(w > width) {
172 width = w;
173 }
174 data = list->next(list);
175 }
176
177 }
178
179 #define UI_COL_CHAR_WIDTH 12
180
181 int ui_add_icon_gadget(Widget container, UiModel *model, void *data) {
182 int width = 50;
183
184 if(model->columns == 0) {
185 return width;
186 }
187
188 XmString label = NULL;
189 Arg args[8];
190 Boolean f;
191 // first column
192 if(model->types[0] != 12345678) { // TODO: icon/label type
193 char *str = ui_type_to_string(
194 model->types[0],
195 model->getvalue(data, 0),
196 &f);
197
198 // column width
199 width += strlen(str) * UI_COL_CHAR_WIDTH;
200
201
202 XmString label = XmStringCreateLocalized(str);
203 XtSetArg(args[0], XmNlabelString, label);
204 if(f) {
205 free(str);
206 }
207 } else {
208 // TODO
209 }
210
211 // remaining columns are the icon gadget details
212 XmStringTable details = (XmStringTable)XtMalloc(
213 (model->columns - 1) * sizeof(XmString));
214 for(int i=1;i<model->columns;i++) {
215 char *str = ui_type_to_string(
216 model->types[i],
217 model->getvalue(data, i),
218 &f);
219
220 // column width
221 width += strlen(str) * UI_COL_CHAR_WIDTH;
222
223 details[i - 1] = XmStringCreateLocalized(str);
224 if(f) {
225 free(str);
226 }
227 }
228 XtSetArg(args[1], XmNdetail, details);
229 XtSetArg(args[2], XmNdetailCount, model->columns - 1);
230 XtSetArg(args[3], XmNshadowThickness, 0);
231 // create widget
232 Widget item = XmCreateIconGadget(container, "table_item", args, 4);
233 XtManageChild(item);
234
235 // cleanup
236 XmStringFree(label);
237 for(int i=0;i<model->columns-1;i++) {
238 XmStringFree(details[i]);
239 }
240 XtFree((char*)details);
241
242 return width;
243 }
244
245 char* ui_type_to_string(UiModelType type, void *data, Boolean *free) {
246 switch(type) {
247 case UI_STRING: *free = FALSE; return data;
248 case UI_INTEGER: {
249 *free = TRUE;
250 int *val = data;
251 cxmutstr str = cx_asprintf("%d", *val);
252 return str.ptr;
253 }
254 case UI_ICON: break; // TODO
255 case UI_ICON_TEXT: break; // TODO
256 }
257 *free = FALSE;
258 return NULL;
259 }
260
261 void ui_table_action_callback(
262 Widget widget,
263 UiTreeEventData *event,
264 XmContainerSelectCallbackStruct *sel)
265 {
266 UiListSelection *selection = ui_list_selection(sel);
267
268 UiEvent e;
269 e.obj = event->obj;
270 e.window = event->obj->window;
271 e.document = event->obj->ctx->document;
272 e.eventdata = selection;
273 e.intval = selection->count > 0 ? selection->rows[0] : -1;
274 event->activate(&e, event->userdata);
275
276 free(event->last_selection->rows);
277 free(event->last_selection);
278 event->last_selection = selection;
279 }
280
281 void ui_table_select_callback(
282 Widget widget,
283 UiTreeEventData *event,
284 XmContainerSelectCallbackStruct *sel)
285 {
286 UiListSelection *selection = ui_list_selection(sel);
287 if(!ui_compare_list_selection(selection, event->last_selection)) {
288 UiEvent e;
289 e.obj = event->obj;
290 e.window = event->obj->window;
291 e.document = event->obj->ctx->document;
292 e.eventdata = selection;
293 e.intval = selection->count > 0 ? selection->rows[0] : -1;
294 event->selection(&e, event->userdata);
295 }
296 if(event->last_selection) {
297 free(event->last_selection->rows);
298 free(event->last_selection);
299 }
300 event->last_selection = selection;
301 }
302
303 UiListSelection* ui_list_selection(XmContainerSelectCallbackStruct *xs) {
304 UiListSelection *selection = malloc(sizeof(UiListSelection));
305 selection->count = xs->selected_item_count;
306 selection->rows = calloc(selection->count, sizeof(int));
307 for(int i=0;i<selection->count;i++) {
308 int index;
309 XtVaGetValues(xs->selected_items[i], XmNpositionIndex, &index, NULL);
310 selection->rows[i] = index;
311 }
312 return selection;
313 }
314
315 Boolean ui_compare_list_selection(UiListSelection *s1, UiListSelection *s2) {
316 if(!s1 || !s2) {
317 return FALSE;
318 }
319 if(s1->count != s2->count) {
320 return FALSE;
321 }
322 for(int i=0;i<s1->count;i++) {
323 if(s1->rows[i] != s2->rows[i]) {
324 return FALSE;
325 }
326 }
327 return TRUE;
328 }

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