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[chaz/homebank] / src / gtk-chart-stack.c
1 /* HomeBank -- Free, easy, personal accounting for everyone.
2 * Copyright (C) 1995-2018 Maxime DOYEN
3 *
4 * This file is part of HomeBank.
5 *
6 * HomeBank is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * HomeBank is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20
21 #include <math.h>
22 #include <string.h>
23
24 #include <gtk/gtk.h>
25
26 #include "homebank.h"
27 #include "gtk-chart-colors.h"
28 #include "gtk-chart-stack.h"
29
30
31 #define MYDEBUG 0
32
33 #if MYDEBUG
34 #define DB(x) (x);
35 #else
36 #define DB(x);
37 #endif
38
39
40 #define DYNAMICS 1
41
42 #define DBGDRAW_RECT 0
43 #define DBGDRAW_TEXT 0
44 #define DBGDRAW_ITEM 0
45
46
47
48 /* --- prototypes --- */
49 static void ui_chart_stack_class_init (ChartStackClass *klass);
50 static void ui_chart_stack_init (ChartStack *chart);
51 static void ui_chart_stack_destroy (GtkWidget *chart);
52 /*static void ui_chart_stack_set_property (GObject *object,
53 guint prop_id,
54 const GValue *value,
55 GParamSpec *pspec);*/
56
57 static gboolean drawarea_configure_event_callback (GtkWidget *widget, GdkEventConfigure *event, gpointer user_data);
58 static gboolean drawarea_draw_callback(GtkWidget *widget, cairo_t *cr, gpointer user_data);
59 static gboolean drawarea_scroll_event_callback( GtkWidget *widget, GdkEventScroll *event, gpointer user_data);
60 static gboolean drawarea_motionnotifyevent_callback(GtkWidget *widget, GdkEventMotion *event, gpointer user_data);
61 static void ui_chart_stack_first_changed( GtkAdjustment *adj, gpointer user_data);
62
63 static void ui_chart_stack_clear(ChartStack *chart, gboolean store);
64
65 static gboolean drawarea_full_redraw(GtkWidget *widget, gpointer user_data);
66 static void ui_chart_stack_queue_redraw(ChartStack *chart);
67
68 /* --- variables --- */
69 static GtkBoxClass *parent_class = NULL;
70
71
72 /* --- functions --- */
73 GType ui_chart_stack_get_type ()
74 {
75 static GType ui_chart_stack_type = 0;
76
77 if (G_UNLIKELY(ui_chart_stack_type == 0))
78 {
79 const GTypeInfo ui_chart_stack_info =
80 {
81 sizeof (ChartStackClass),
82 NULL, /* base_init */
83 NULL, /* base_finalize */
84 (GClassInitFunc) ui_chart_stack_class_init,
85 NULL, /* class_finalize */
86 NULL, /* class_init */
87 sizeof (ChartStack),
88 0, /* n_preallocs */
89 (GInstanceInitFunc) ui_chart_stack_init,
90 NULL /* value_table */
91 };
92
93 ui_chart_stack_type = g_type_register_static (GTK_TYPE_BOX, "ChartStack",
94 &ui_chart_stack_info, 0);
95
96 }
97 return ui_chart_stack_type;
98 }
99
100
101 static void ui_chart_stack_class_init (ChartStackClass * class)
102 {
103 //GObjectClass *gobject_class;
104 GtkWidgetClass *widget_class;
105
106 DB( g_print("\n[chartstack] class_init\n") );
107
108 //gobject_class = (GObjectClass*) class;
109 widget_class = (GtkWidgetClass*) class;
110
111 parent_class = g_type_class_peek_parent (class);
112
113 //gobject_class->dispose = ui_chart_stack_dispose;
114 //gobject_class->finalize = ui_chart_stack_finalize;
115 //gobject_class->set_property = ui_chart_stack_set_property;
116 //gobject_class->get_property = ui_chart_stack_get_property;
117
118 widget_class->destroy = ui_chart_stack_destroy;
119
120
121 }
122
123 /* get/set properties goes here */
124
125
126 static void
127 ui_chart_stack_init (ChartStack * chart)
128 {
129 GtkWidget *widget, *hbox, *frame;
130
131
132 DB( g_print("\n[chartstack] init\n") );
133
134 chart->surface = NULL;
135 chart->nb_items = 0;
136 chart->active = -1;
137 chart->title = NULL;
138 chart->subtitle = NULL;
139 chart->pfd = NULL;
140
141 chart->budget_title = "Budget";
142 chart->result_title = "Result";
143
144 chart->barw = GTK_CHARTSTACK_BARW;
145 ui_chart_stack_set_color_scheme(chart, CHART_COLMAP_HOMEBANK);
146
147 widget=GTK_WIDGET(chart);
148
149 gtk_box_set_homogeneous(GTK_BOX(widget), FALSE);
150
151 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
152 gtk_box_pack_start (GTK_BOX (widget), hbox, TRUE, TRUE, 0);
153
154 /* frame & drawing area */
155 frame = gtk_frame_new(NULL);
156 gtk_frame_set_shadow_type (GTK_FRAME(frame), GTK_SHADOW_ETCHED_IN);
157 gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
158
159 chart->drawarea = gtk_drawing_area_new();
160 //gtk_widget_set_double_buffered (GTK_WIDGET(widget), FALSE);
161
162 gtk_container_add( GTK_CONTAINER(frame), chart->drawarea );
163 gtk_widget_set_size_request(chart->drawarea, 150, 150 );
164 #if DYNAMICS == 1
165 gtk_widget_set_has_tooltip(chart->drawarea, TRUE);
166 #endif
167 gtk_widget_show(chart->drawarea);
168
169 /* scrollbar */
170 chart->adjustment = GTK_ADJUSTMENT(gtk_adjustment_new (0.0, 0.0, 1.0, 1.0, 1.0, 1.0));
171 chart->scrollbar = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL,GTK_ADJUSTMENT (chart->adjustment));
172 gtk_box_pack_start (GTK_BOX (hbox), chart->scrollbar, FALSE, TRUE, 0);
173
174
175 g_signal_connect( G_OBJECT(chart->drawarea), "configure-event", G_CALLBACK (drawarea_configure_event_callback), chart);
176 //g_signal_connect( G_OBJECT(chart->drawarea), "realize", G_CALLBACK(drawarea_realize_callback), chart ) ;
177 g_signal_connect( G_OBJECT(chart->drawarea), "draw", G_CALLBACK(drawarea_draw_callback), chart );
178
179 #if DYNAMICS == 1
180 gtk_widget_add_events(GTK_WIDGET(chart->drawarea),
181 GDK_EXPOSURE_MASK |
182 //GDK_POINTER_MOTION_MASK |
183 //GDK_POINTER_MOTION_HINT_MASK |
184 GDK_SCROLL_MASK
185 );
186
187 //g_signal_connect( G_OBJECT(chart->drawarea), "query-tooltip", G_CALLBACK(drawarea_querytooltip_callback), chart );
188 g_signal_connect( G_OBJECT(chart->drawarea), "scroll-event", G_CALLBACK(drawarea_scroll_event_callback), chart ) ;
189 g_signal_connect( G_OBJECT(chart->drawarea), "motion-notify-event", G_CALLBACK(drawarea_motionnotifyevent_callback), chart );
190 #endif
191
192 g_signal_connect (G_OBJECT(chart->adjustment), "value-changed", G_CALLBACK (ui_chart_stack_first_changed), chart);
193
194 /*
195 g_signal_connect( G_OBJECT(chart->drawarea), "leave-notify-event", G_CALLBACK(ui_chart_stack_leave), chart );
196 g_signal_connect( G_OBJECT(chart->drawarea), "enter-notify-event", G_CALLBACK(ui_chart_stack_enter), chart );
197 g_signal_connect( G_OBJECT(chart->drawarea), "button-press-event", G_CALLBACK(ui_chart_stack_button_press), chart );
198 g_signal_connect( G_OBJECT(chart->drawarea), "button-release-event", G_CALLBACK(ui_chart_stack_button_release), chart );
199 */
200
201
202 }
203
204
205 GtkWidget *
206 ui_chart_stack_new (void)
207 {
208 GtkWidget *chart;
209
210 chart = (GtkWidget *)g_object_new (GTK_TYPE_CHARTSTACK, NULL);
211
212 return chart;
213 }
214
215
216 void
217 ui_chart_stack_destroy (GtkWidget * object)
218 {
219 ChartStack *chart = GTK_CHARTSTACK(object);
220
221 g_return_if_fail (GTK_IS_CHARTSTACK (object));
222
223 ui_chart_stack_clear(GTK_CHARTSTACK (object), FALSE);
224
225 if(chart->pfd)
226 {
227 pango_font_description_free (chart->pfd);
228 chart->pfd = NULL;
229 }
230
231 if (chart->surface)
232 {
233 cairo_surface_destroy (chart->surface);
234 chart->surface = NULL;
235 }
236
237 GTK_WIDGET_CLASS (parent_class)->destroy (object);
238 }
239
240
241
242
243 /*
244 ** print a integer number
245 */
246 static gchar *ui_chart_stack_print_int(ChartStack *chart, gdouble value)
247 {
248
249 hb_strfmon(chart->buffer, CHART_BUFFER_LENGTH-1, value, chart->kcur, chart->minor);
250 return chart->buffer;
251 }
252
253
254 static void ui_chart_stack_clear(ChartStack *chart, gboolean store)
255 {
256 gint i;
257
258 DB( g_print("\n[chartstack] clear\n") );
259
260 //free & clear any previous allocated datas
261 if(chart->title != NULL)
262 {
263 g_free(chart->title);
264 chart->title = NULL;
265 }
266
267 if(chart->subtitle != NULL)
268 {
269 g_free(chart->subtitle);
270 chart->subtitle = NULL;
271 }
272
273 if(chart->items != NULL)
274 {
275 for(i=0;i<chart->nb_items;i++)
276 {
277 StackItem *item = &g_array_index(chart->items, StackItem, i);
278
279 g_free(item->label); //we free label as it comes from a model_get into setup_with_model
280 g_free(item->status); //we free status as it comes from a model_get into setup_with_model
281 }
282 g_array_free(chart->items, TRUE);
283 chart->items = NULL;
284 }
285
286 chart->nb_items = 0;
287
288 }
289
290
291 static void ui_chart_stack_setup_with_model(ChartStack *chart, GtkTreeModel *list_store, gchar *coltitle1, gchar *coltitle2)
292 {
293 guint i;
294 gboolean valid;
295 GtkTreeIter iter;
296
297 DB( g_print("\n[chartstack] setup with model\n") );
298
299 ui_chart_stack_clear(chart, TRUE);
300
301 chart->nb_items = gtk_tree_model_iter_n_children(GTK_TREE_MODEL(list_store), NULL);
302
303 chart->items = g_array_sized_new(FALSE, FALSE, sizeof(StackItem), chart->nb_items);
304
305 DB( g_print(" nb=%d\n", chart->nb_items) );
306
307 if(coltitle1)
308 chart->budget_title = coltitle1;
309 if(coltitle2)
310 chart->result_title = coltitle2;
311
312 /* Get the first iter in the list */
313 valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL(list_store), &iter);
314 i = 0;
315 while (valid)
316 {
317 gint id;
318 gchar *label, *status;
319 gdouble value1, value2;
320 StackItem item;
321
322 gtk_tree_model_get (GTK_TREE_MODEL(list_store), &iter,
323 0, &id,
324 //1, &pos,
325 2, &label,
326 3, &value1, //spent
327 4, &value2, //budget
328 //5, &result,
329 6, &status,
330 -1);
331
332 item.label = label;
333 item.spent = value1;
334 item.budget = value2;
335 item.status = status;
336
337 /* additional pre-compute */
338 item.result = item.spent - item.budget;
339 item.rawrate = 0;
340 if(ABS(item.budget) > 0)
341 {
342 item.rawrate = item.spent / item.budget;
343 }
344
345 item.warn = item.result < 0.0 ? TRUE : FALSE;
346
347 item.rate = CLAMP(item.rawrate, 0, 1.0);
348
349 g_array_append_vals(chart->items, &item, 1);
350
351
352 //don't g_free(label); here done into chart_clear
353 //don't g_free(status); here done into chart_clear
354
355 i++;
356 valid = gtk_tree_model_iter_next (list_store, &iter);
357 }
358
359 }
360
361
362 static void ui_chart_stack_set_font_size(ChartStack *chart, gint font_size)
363 {
364 gint size = 10;
365
366 if( chart->pfd == NULL )
367 return;
368
369 DB( g_print("\n[chartstack] set font size\n") );
370
371 switch(font_size)
372 {
373 case CHART_FONT_SIZE_TITLE:
374 size = chart->pfd_size + 3;
375 break;
376 case CHART_FONT_SIZE_SUBTITLE:
377 size = chart->pfd_size + 1;
378 break;
379 case CHART_FONT_SIZE_NORMAL:
380 size = chart->pfd_size - 1;
381 break;
382 }
383
384 DB( g_print(" size=%d\n", size) );
385
386 pango_font_description_set_size(chart->pfd, size * PANGO_SCALE);
387
388 }
389
390
391
392 static void ui_chart_stack_calculation(ChartStack *chart)
393 {
394 GtkWidget *drawarea = chart->drawarea;
395 cairo_surface_t *surf;
396 cairo_t *cr;
397 gint blkw;
398 gint i;
399 int tw, th;
400 gchar *valstr;
401 GtkAllocation allocation;
402 PangoLayout *layout;
403
404 DB( g_print("\n[chartstack] bar calculation\n") );
405
406 gtk_widget_get_allocation(drawarea, &allocation);
407
408 chart->l = CHART_MARGIN;
409 chart->t = CHART_MARGIN;
410 chart->r = allocation.width - CHART_MARGIN;
411 chart->b = allocation.height - CHART_MARGIN;
412 chart->w = allocation.width - (CHART_MARGIN*2);
413 chart->h = allocation.height - (CHART_MARGIN*2);
414
415 //todo: seems not working well...
416 surf = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, allocation.width, allocation.height);
417 cr = cairo_create (surf);
418
419 /* Create a PangoLayout, set the font and text */
420 layout = pango_cairo_create_layout (cr);
421
422
423 // compute title
424 chart->title_zh = 0;
425 if(chart->title)
426 {
427 //pango_font_description_set_size(chart->pfd, CHART_FONT_SIZE_TITLE * PANGO_SCALE);
428 ui_chart_stack_set_font_size(chart, CHART_FONT_SIZE_TITLE);
429 pango_layout_set_font_description (layout, chart->pfd);
430
431 pango_layout_set_text (layout, chart->title, -1);
432 pango_layout_get_size (layout, &tw, &th);
433 chart->title_zh = (th / PANGO_SCALE) + CHART_SPACING;
434 DB( g_print(" - title: %s w=%d h=%d\n", chart->title, tw, th) );
435 }
436
437 // compute period
438 chart->subtitle_zh = 0;
439 if(chart->subtitle)
440 {
441 //pango_font_description_set_size(chart->pfd, CHART_FONT_SIZE_PERIOD * PANGO_SCALE);
442 ui_chart_stack_set_font_size(chart, CHART_FONT_SIZE_SUBTITLE);
443 pango_layout_set_font_description (layout, chart->pfd);
444
445 pango_layout_set_text (layout, chart->subtitle, -1);
446 pango_layout_get_size (layout, &tw, &th);
447 chart->subtitle_zh = (th / PANGO_SCALE) + CHART_SPACING;
448 DB( g_print(" - period: %s w=%d h=%d\n", chart->subtitle, tw, th) );
449 }
450
451 // compute other text
452 //pango_font_description_set_size(chart->pfd, CHART_FONT_SIZE_NORMAL * PANGO_SCALE);
453 ui_chart_stack_set_font_size(chart, CHART_FONT_SIZE_NORMAL);
454 pango_layout_set_font_description (layout, chart->pfd);
455
456 double title_w = 0;
457 chart->bud_col_w = 0;
458 chart->rel_col_w = 0;
459
460 gdouble maxbudget = 0;
461 gdouble maxresult = 0;
462 gdouble result;
463 for(i=0;i<chart->nb_items;i++)
464 {
465 StackItem *item = &g_array_index(chart->items, StackItem, i);
466
467 // category width
468 if( item->label != NULL )
469 {
470 pango_layout_set_text (layout, item->label, -1);
471 pango_layout_get_size (layout, &tw, &th);
472 title_w = MAX(title_w, (tw / PANGO_SCALE));
473 }
474
475 DB( g_print(" - calc '%s' title_w=%f (w=%d)\n", item->label, title_w, tw) );
476
477 //result = ABS(chart->spent[i]) - ABS(chart->budget[i]);
478 result = ABS(item->spent - item->budget);
479
480 maxbudget = MAX(maxbudget, ABS(item->budget) );
481 maxresult = MAX(maxresult, result);
482
483 DB( g_print(" - maxbudget maxbudget=%f (w=%d)\n", maxbudget, tw) );
484
485 if( item->status != NULL )
486 {
487 pango_layout_set_text (layout, item->status, -1);
488 pango_layout_get_size (layout, &tw, &th);
489 chart->rel_col_w = MAX(chart->rel_col_w, (tw / PANGO_SCALE));
490 }
491 }
492
493 chart->rel_col_w += CHART_SPACING;
494
495 // compute budget/result width
496 valstr = ui_chart_stack_print_int(chart, -maxbudget);
497 pango_layout_set_text (layout, valstr, -1);
498 pango_layout_get_size (layout, &tw, &th);
499 chart->bud_col_w = (tw / PANGO_SCALE);
500 pango_layout_set_text (layout, chart->budget_title, -1);
501 pango_layout_get_size (layout, &tw, &th);
502 chart->bud_col_w = MAX(chart->bud_col_w, (tw / PANGO_SCALE));
503 DB( g_print(" - budget-col: w=%f, %.2f, '%s'\n", chart->bud_col_w, maxbudget, valstr) );
504
505
506 valstr = ui_chart_stack_print_int(chart, -maxresult);
507 pango_layout_set_text (layout, valstr, -1);
508 pango_layout_get_size (layout, &tw, &th);
509 chart->res_col_w = (tw / PANGO_SCALE);
510 pango_layout_set_text (layout, chart->result_title, -1);
511 pango_layout_get_size (layout, &tw, &th);
512 chart->res_col_w = MAX(chart->res_col_w, (tw / PANGO_SCALE));
513 DB( g_print(" - result-col: w=%f, %.2f, '%s'\n", chart->res_col_w, maxresult, valstr) );
514
515
516 // collect other width, add margins
517 chart->header_zh = (th / PANGO_SCALE) + CHART_SPACING;
518 chart->cat_col_w = title_w + CHART_SPACING;
519
520 //chart->title_y = chart->t;
521 chart->subtitle_y = chart->t + chart->title_zh;
522 chart->header_y = chart->subtitle_y + chart->subtitle_zh;
523
524
525 chart->graph_width = chart->w - chart->cat_col_w - chart->bud_col_w - chart->res_col_w - chart->rel_col_w - (double)(CHART_SPACING*4);
526 chart->graph_height = chart->h - chart->title_zh - chart->subtitle_zh -chart->header_zh;
527
528
529 DB( g_print("gfx_w = %.2f - %.2f - %.2f - %.2f - %.2f \n",
530 chart->w , chart->cat_col_w , chart->bud_col_w , chart->res_col_w , (double)(CHART_SPACING*4)) );
531
532 DB( g_print("gfx_w = %.2f\n", chart->graph_width) );
533
534 //if expand : we compute available space
535 //chart->barw = MAX(32, (chart->graph_width)/chart->nb_items);
536 //chart->barw = 32; // usr setted or defaut to BARW
537
538 blkw = chart->barw + floor(chart->barw * 0.2);
539 chart->blkw = blkw;
540
541 chart->visible = MIN( 1 + (chart->graph_height / blkw), chart->nb_items);
542
543 g_object_unref (layout);
544
545 cairo_destroy(cr);
546 cairo_surface_destroy(surf);
547
548 }
549
550
551 #if (DBGDRAW_RECT + DBGDRAW_TEXT + DBGDRAW_ITEM) > 0
552 static void ui_chart_stack_draw_help(GtkWidget *widget, gpointer user_data)
553 {
554 ChartStack *chart = GTK_CHARTSTACK(user_data);
555 cairo_t *cr;
556 double x, y, y2;
557 gint first = 0;
558 gint i;
559
560 DB( g_print("\n[chartstack] draw help\n") );
561
562
563 //cr = gdk_cairo_create (gtk_widget_get_window(widget));
564 cr = cairo_create (chart->surface);
565
566 cairo_set_line_width (cr, 1);
567
568 #if DBGDRAW_RECT == 1
569 //clip area
570 cairo_set_line_width(cr, 1.0);
571 cairo_set_source_rgb(cr, 0.0, 1.0, 0.0); //green
572 cairo_rectangle(cr, chart->l+0.5, chart->t+0.5, chart->w, chart->h);
573 cairo_stroke(cr);
574
575 //graph area
576 y = chart->header_y + chart->header_zh;
577 cairo_set_source_rgb(cr, 1.0, 0.5, 0.0); //orange
578 cairo_rectangle(cr, chart->l+chart->cat_col_w+0.5, y+0.5, chart->graph_width+0.5, chart->graph_height+0.5);
579 cairo_stroke(cr);
580 #endif
581
582 #if DBGDRAW_TEXT == 1
583 //title rect
584 cairo_set_source_rgb(cr, .0, .0, 1.0);
585 cairo_rectangle(cr, chart->l+0.5, chart->t+0.5, chart->w, chart->title_zh);
586 cairo_stroke(cr);
587
588 //period rect
589 cairo_set_source_rgb(cr, .0, 0, 1.0);
590 cairo_rectangle(cr, chart->l+0.5, chart->subtitle_y+0.5, chart->w, chart->subtitle_zh);
591 cairo_stroke(cr);
592
593 //header rect
594 cairo_set_source_rgb(cr, .0, 1.0, 1.0);
595 cairo_rectangle(cr, chart->l+0.5, chart->header_y+0.5, chart->w, chart->header_zh);
596 cairo_stroke(cr);
597
598 //category column
599 y = chart->t + chart->title_zh + chart->header_zh + chart->subtitle_zh;
600 cairo_set_source_rgb(cr, 0.0, 0.0, 1.0); //blue
601 cairo_rectangle(cr, chart->l+0.5, y+0.5, chart->cat_col_w, chart->h - y);
602 cairo_stroke(cr);
603
604 //budget column
605 x = chart->l + chart->cat_col_w + chart->graph_width + CHART_SPACING ;
606 cairo_set_source_rgb(cr, 0.0, 0.0, 1.0); //blue
607 cairo_rectangle(cr, x+0.5, y+0.5, chart->bud_col_w, chart->h - y);
608 cairo_stroke(cr);
609
610 //result column
611 x = chart->l + chart->cat_col_w + chart->graph_width + chart->bud_col_w + (CHART_SPACING*3);
612 cairo_set_source_rgb(cr, 0.0, 0.0, 1.0); //blue
613 cairo_rectangle(cr, x+0.5, y+0.5, chart->res_col_w, chart->h - y);
614 cairo_stroke(cr);
615 #endif
616
617
618 // draw item lines
619 #if DBGDRAW_ITEM == 1
620 y2 = y+0.5;
621 cairo_set_line_width(cr, 1.0);
622 double dashlength;
623 dashlength = 4;
624 cairo_set_dash (cr, &dashlength, 1, 0);
625 cairo_set_source_rgb(cr, 1.0, 0.0, 1.0); // violet
626 for(i=first; i<=(first+chart->visible) ;i++)
627 {
628 cairo_move_to(cr, chart->l, y2);
629 cairo_line_to(cr, chart->r, y2);
630
631 y2 += chart->blkw;
632 }
633 cairo_stroke(cr);
634 #endif
635
636
637 cairo_destroy(cr);
638
639 }
640 #endif
641
642
643 /*
644 ** draw all visible bars
645 */
646 static void ui_chart_stack_draw_bars(ChartStack *chart, cairo_t *cr)
647 {
648 double x, y, x2, y2, h;
649 gint first;
650 gint i, idx;
651 gchar *valstr;
652 PangoLayout *layout;
653 int tw, th;
654
655 DB( g_print("\n[chartstack] bar draw bars\n") );
656
657 layout = pango_cairo_create_layout (cr);
658
659 x = chart->l + chart->cat_col_w;
660 y = chart->t + chart->title_zh + chart->header_zh + chart->subtitle_zh;
661 first = (gint)gtk_adjustment_get_value(GTK_ADJUSTMENT(chart->adjustment));
662
663 // draw title
664 if(chart->title)
665 {
666 //pango_font_description_set_size(chart->pfd, CHART_FONT_SIZE_TITLE * PANGO_SCALE);
667 ui_chart_stack_set_font_size(chart, CHART_FONT_SIZE_TITLE);
668 pango_layout_set_font_description (layout, chart->pfd);
669 pango_layout_set_text (layout, chart->title, -1);
670 pango_layout_get_size (layout, &tw, &th);
671
672 cairo_user_set_rgbcol(cr, &global_colors[THTEXT]);
673 cairo_move_to(cr, chart->l, chart->t);
674 pango_cairo_show_layout (cr, layout);
675 }
676
677 // draw period
678 if(chart->subtitle)
679 {
680 //pango_font_description_set_size(chart->pfd, CHART_FONT_SIZE_PERIOD * PANGO_SCALE);
681 ui_chart_stack_set_font_size(chart, CHART_FONT_SIZE_SUBTITLE);
682 pango_layout_set_font_description (layout, chart->pfd);
683 pango_layout_set_text (layout, chart->subtitle, -1);
684 pango_layout_get_size (layout, &tw, &th);
685
686 cairo_user_set_rgbcol(cr, &global_colors[THTEXT]);
687 cairo_move_to(cr, chart->l, chart->subtitle_y);
688 pango_cairo_show_layout (cr, layout);
689 }
690
691 // draw column title
692 //cairo_user_set_rgbcol(cr, &global_colors[BLACK]);
693 cairo_user_set_rgbacol (cr, &global_colors[THTEXT], 0.78);
694 //pango_font_description_set_size(chart->pfd, CHART_FONT_SIZE_NORMAL * PANGO_SCALE);
695 ui_chart_stack_set_font_size(chart, CHART_FONT_SIZE_NORMAL);
696 pango_layout_set_font_description (layout, chart->pfd);
697
698 pango_layout_set_text (layout, chart->budget_title, -1);
699 pango_layout_get_size (layout, &tw, &th);
700 cairo_move_to(cr, chart->l + chart->cat_col_w + chart->graph_width + chart->bud_col_w + CHART_SPACING - (tw /PANGO_SCALE), chart->header_y);
701 pango_cairo_show_layout (cr, layout);
702
703 pango_layout_set_text (layout, chart->result_title, -1);
704 pango_layout_get_size (layout, &tw, &th);
705 cairo_move_to(cr, chart->l + chart->cat_col_w + chart->graph_width + chart->bud_col_w + chart->res_col_w - (tw /PANGO_SCALE) + (CHART_SPACING*3), chart->header_y);
706 pango_cairo_show_layout (cr, layout);
707
708
709 // draw items
710 //pango_font_description_set_size(chart->pfd, CHART_FONT_SIZE_NORMAL * PANGO_SCALE);
711 ui_chart_stack_set_font_size(chart, CHART_FONT_SIZE_NORMAL);
712 pango_layout_set_font_description (layout, chart->pfd);
713
714 for(i=0; i<chart->visible ;i++)
715 {
716 StackItem *item;
717 gint barw = chart->barw;
718 gint blkw = chart->blkw;
719
720 idx = i + first;
721
722 item = &g_array_index(chart->items, StackItem, idx);
723
724 x2 = x;
725 y2 = y + (CHART_SPACING/2) + (blkw * i);
726
727 DB( g_print("'%-32s' wrn=%d %.2f%% (%.2f%%) :: r=% 4.2f s=% 4.2f b=% 4.2f\n",
728 item->label, item->warn, item->rawrate, item->rate, item->result, item->spent, item->budget) );
729
730 valstr = item->label;
731 pango_layout_set_text (layout, valstr, -1);
732 pango_layout_get_size (layout, &tw, &th);
733
734 double ytext = y2 + ((barw - (th / PANGO_SCALE))/2);
735
736 //cairo_user_set_rgbcol(cr, &global_colors[BLACK]);
737 cairo_user_set_rgbacol (cr, &global_colors[THTEXT], 0.78);
738 cairo_move_to(cr, chart->l + chart->cat_col_w - (tw / PANGO_SCALE) - CHART_SPACING, ytext);
739 pango_cairo_show_layout (cr, layout);
740
741 // bar background
742 cairo_user_set_rgbacol(cr, &global_colors[THTEXT], 0.15);
743 cairo_rectangle(cr, x2, y2, chart->graph_width, barw);
744 cairo_fill(cr);
745
746 //bar with color :: todo migrate this
747 h = floor(item->rate * chart->graph_width);
748 if(item->warn)
749 {
750 cairo_user_set_rgbcol_over(cr, &chart->color_scheme.colors[chart->color_scheme.cs_red], idx == chart->active);
751 }
752 else
753 {
754 if(item->rate > 0.8 && item->rate < 1.0)
755 cairo_user_set_rgbcol_over(cr, &chart->color_scheme.colors[chart->color_scheme.cs_orange], idx == chart->active);
756 else
757 cairo_user_set_rgbcol_over(cr, &chart->color_scheme.colors[chart->color_scheme.cs_green], idx == chart->active);
758 }
759
760
761 cairo_rectangle(cr, x2, y2, h, barw);
762 cairo_fill(cr);
763
764 // spent value
765 if( item->result != 0)
766 {
767 valstr = ui_chart_stack_print_int(chart, item->spent);
768 pango_layout_set_text (layout, valstr, -1);
769 pango_layout_get_size (layout, &tw, &th);
770
771 if( h >= ( (tw / PANGO_SCALE) + (CHART_SPACING*2)) )
772 {
773 // draw inside
774 cairo_user_set_rgbcol(cr, &global_colors[WHITE]);
775 //cairo_user_set_rgbcol (cr, &global_colors[THBASE]);
776 cairo_move_to(cr, x2 + h - (tw / PANGO_SCALE) - CHART_SPACING, ytext);
777 }
778 else
779 {
780 // draw outside
781 //cairo_user_set_rgbcol(cr, &global_colors[TEXT]);
782 cairo_user_set_rgbacol (cr, &global_colors[THTEXT], 0.78);
783 cairo_move_to(cr, x2 + h + CHART_SPACING, ytext);
784 }
785
786 pango_cairo_show_layout (cr, layout);
787 }
788
789 // budget value
790 valstr = ui_chart_stack_print_int(chart, item->budget);
791 pango_layout_set_text (layout, valstr, -1);
792 pango_layout_get_size (layout, &tw, &th);
793 //cairo_user_set_rgbcol(cr, &global_colors[BLACK]);
794 cairo_user_set_rgbacol (cr, &global_colors[THTEXT], 0.78);
795 cairo_move_to(cr, chart->l + chart->cat_col_w + chart->graph_width + chart->bud_col_w + CHART_SPACING - (tw / PANGO_SCALE), ytext);
796 pango_cairo_show_layout (cr, layout);
797
798 // result value
799
800 if( item->result != 0)
801 {
802 valstr = ui_chart_stack_print_int(chart, item->result);
803
804 if(item->warn)
805 //cairo_set_source_rgb(cr, COLTOCAIRO(164), COLTOCAIRO(0), COLTOCAIRO(0));
806 cairo_user_set_rgbcol(cr, &chart->color_scheme.colors[chart->color_scheme.cs_red]);
807 else
808 //cairo_user_set_rgbcol(cr, &global_colors[TEXT]);
809 cairo_user_set_rgbacol (cr, &global_colors[THTEXT], 0.78);
810
811 pango_layout_set_text (layout, valstr, -1);
812 pango_layout_get_size (layout, &tw, &th);
813 cairo_move_to(cr, chart->l + chart->cat_col_w + chart->graph_width + chart->bud_col_w + chart->res_col_w - (tw / PANGO_SCALE) + (CHART_SPACING*3), ytext);
814 pango_cairo_show_layout (cr, layout);
815
816 // status
817 if( item->status )
818 {
819 pango_layout_set_text (layout, item->status, -1);
820 pango_layout_get_size (layout, &tw, &th);
821 cairo_move_to(cr, chart->l + chart->cat_col_w + chart->graph_width + chart->bud_col_w + chart->res_col_w + (CHART_SPACING*4), ytext);
822 pango_cairo_show_layout (cr, layout);
823 }
824 }
825
826 //y += blkw;
827
828 }
829
830 g_object_unref (layout);
831
832 }
833
834
835 /*
836 ** get the bar under the mouse pointer
837 */
838 static gint ui_chart_stack_get_active(GtkWidget *widget, gint x, gint y, gpointer user_data)
839 {
840 ChartStack *chart = GTK_CHARTSTACK(user_data);
841 gint retval, first, index, py;
842 gint blkw = chart->blkw;
843 double oy;
844
845 DB( g_print("\n[chartstack] get active\n") );
846
847 retval = -1;
848
849 oy = chart->t + chart->title_zh + chart->header_zh + chart->subtitle_zh;
850
851 //DB( g_print(" y=%d, oy=%f, cb=%f\n", y, oy, chart->b) );
852
853 if( (y <= chart->b && y >= oy) && (x >= chart->l && x <= chart->r) )
854 {
855 first = gtk_adjustment_get_value(GTK_ADJUSTMENT(chart->adjustment));
856 py = (y - oy);
857 index = first + (py / blkw);
858
859
860 if(index < chart->nb_items)
861 retval = index;
862
863 DB( g_print(" hover=%d\n", retval) );
864 }
865
866 return(retval);
867 }
868
869
870 static void ui_chart_stack_first_changed( GtkAdjustment *adj, gpointer user_data)
871 {
872 ChartStack *chart = GTK_CHARTSTACK(user_data);
873 //gint first;
874
875 DB( g_print("\n[chartstack] bar first changed\n") );
876
877 //first = gtk_adjustment_get_value(GTK_ADJUSTMENT(adj));
878
879 //DB( g_print(" first=%d\n", first) );
880
881 /*
882 DB( g_print("scrollbar\n adj=%8x, low=%.2f upp=%.2f val=%.2f step=%.2f page=%.2f size=%.2f\n", adj,
883 adj->lower, adj->upper, adj->value, adj->step_increment, adj->page_increment, adj->page_size) );
884 */
885 /* Set the number of decimal places to which adj->value is rounded */
886 //gtk_scale_set_digits (GTK_SCALE (hscale), (gint) adj->value);
887 //gtk_scale_set_digits (GTK_SCALE (vscale), (gint) adj->value);
888 drawarea_full_redraw (chart->drawarea, chart);
889 gtk_widget_queue_draw(chart->drawarea);
890
891 }
892
893 /*
894 ** scrollbar set values for upper, page size, and also show/hide
895 */
896 static void ui_chart_stack_scrollbar_setvalues(ChartStack *chart)
897 {
898 GtkAdjustment *adj = chart->adjustment;
899 gint first;
900
901 g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
902
903 DB( g_print("\n[chartstack] sb_set_values\n") );
904
905 //if(visible < entries)
906 //{
907 first = gtk_adjustment_get_value(GTK_ADJUSTMENT(adj));
908
909 DB( g_print(" entries=%d, visible=%d\n", chart->nb_items, chart->visible) );
910 DB( g_print(" first=%d, upper=%d, pagesize=%d\n", first, chart->nb_items, chart->visible) );
911
912 gtk_adjustment_set_upper(adj, (gdouble)chart->nb_items);
913 gtk_adjustment_set_page_size(adj, (gdouble)chart->visible);
914 gtk_adjustment_set_page_increment(adj, (gdouble)chart->visible);
915
916 if(first+chart->visible > chart->nb_items)
917 {
918 gtk_adjustment_set_value(adj, (gdouble)chart->nb_items - chart->visible);
919 }
920
921 gtk_adjustment_changed (adj);
922
923 //gtk_widget_show(GTK_WIDGET(scrollbar));
924 //}
925 //else
926 //gtk_widget_hide(GTK_WIDGET(scrollbar));
927
928
929 }
930
931
932 static void ui_chart_stack_recompute(ChartStack *chart)
933 {
934
935 DB( g_print("\n[chartstack] recompute\n") );
936
937 ui_chart_stack_calculation(chart);
938 gtk_adjustment_set_value(chart->adjustment, 0);
939 ui_chart_stack_scrollbar_setvalues(chart);
940 gtk_widget_show(chart->scrollbar);
941
942 gtk_widget_queue_draw( chart->drawarea );
943 }
944
945
946 /* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
947 static gboolean drawarea_full_redraw(GtkWidget *widget, gpointer user_data)
948 {
949 ChartStack *chart = GTK_CHARTSTACK(user_data);
950 cairo_t *cr;
951
952 DB( g_print("\n[gtkchart] drawarea full redraw\n") );
953
954 cr = cairo_create (chart->surface);
955
956 /* fillin the back in white */
957 //cairo_user_set_rgbcol(cr, &global_colors[WHITE]);
958 cairo_user_set_rgbcol(cr, &global_colors[THBASE]);
959 cairo_paint(cr);
960
961 if(chart->nb_items == 0)
962 {
963 cairo_destroy(cr);
964 return FALSE;
965 }
966
967 cairo_rectangle(cr, chart->l, chart->t, chart->w, chart->h);
968 cairo_clip(cr);
969
970
971 #if (DBGDRAW_RECT + DBGDRAW_TEXT + DBGDRAW_ITEM) > 0
972 ui_chart_stack_draw_help(widget, user_data);
973 #endif
974
975 ui_chart_stack_draw_bars(chart, cr);
976
977 cairo_destroy(cr);
978
979 return TRUE;
980 }
981
982
983 static gboolean
984 drawarea_configure_event_callback (GtkWidget *widget,
985 GdkEventConfigure *event,
986 gpointer user_data)
987 {
988 ChartStack *chart = GTK_CHARTSTACK(user_data);
989 GtkAllocation allocation;
990 GtkStyleContext *context;
991 PangoFontDescription *desc;
992 gboolean colfound;
993 GdkRGBA color;
994
995 DB( g_print("\n[chartstack] drawarea configure \n") );
996
997 DB( g_print("w=%d h=%d\n", allocation.width, allocation.height) );
998
999 gtk_widget_get_allocation (widget, &allocation);
1000
1001 if (chart->surface)
1002 cairo_surface_destroy (chart->surface);
1003
1004 chart->surface = gdk_window_create_similar_surface (gtk_widget_get_window (widget),
1005 CAIRO_CONTENT_COLOR,
1006 allocation.width,
1007 allocation.height);
1008
1009 context = gtk_widget_get_style_context (widget);
1010
1011 chart_color_global_default();
1012
1013 // get base color
1014 colfound = gtk_style_context_lookup_color(context, "theme_base_color", &color);
1015 if(!colfound)
1016 colfound = gtk_style_context_lookup_color(context, "base_color", &color);
1017
1018 if( colfound )
1019 {
1020 struct rgbcol *tcol = &global_colors[THBASE];
1021 tcol->r = color.red * 255;
1022 tcol->g = color.green * 255;
1023 tcol->b = color.blue * 255;
1024 DB( g_print(" - theme base col: %x %x %x\n", tcol->r, tcol->g, tcol->b) );
1025 }
1026
1027 //get text color
1028 colfound = gtk_style_context_lookup_color(context, "theme_text_color", &color);
1029 if(!colfound)
1030 gtk_style_context_lookup_color(context, "text_color", &color);
1031
1032 if( colfound )
1033 {
1034 struct rgbcol *tcol = &global_colors[THTEXT];
1035 tcol->r = color.red * 255;
1036 tcol->g = color.green * 255;
1037 tcol->b = color.blue * 255;
1038 DB( g_print(" - theme text (bg) col: %x %x %x\n", tcol->r, tcol->g, tcol->b) );
1039 }
1040
1041 /* get and copy the font */
1042 gtk_style_context_get(context, GTK_STATE_FLAG_NORMAL, "font", &desc, NULL);
1043 if(chart->pfd)
1044 {
1045 pango_font_description_free (chart->pfd);
1046 chart->pfd = NULL;
1047 }
1048 chart->pfd = pango_font_description_copy(desc);
1049 chart->pfd_size = pango_font_description_get_size (desc) / PANGO_SCALE;
1050 chart->barw = (6 + chart->pfd_size) * PHI;
1051
1052
1053 DB( g_print("family: %s\n", pango_font_description_get_family(chart->pfd) ) );
1054 DB( g_print("size : %d (%d)\n", chart->pfd_size, chart->pfd_size/PANGO_SCALE ) );
1055 DB( g_print("isabs : %d\n", pango_font_description_get_size_is_absolute (chart->pfd) ) );
1056
1057 if( gtk_widget_get_realized(widget) )
1058 {
1059 ui_chart_stack_recompute(chart);
1060 drawarea_full_redraw(widget, user_data);
1061 }
1062
1063 /* We've handled the configure event, no need for further processing. */
1064 return TRUE;
1065 }
1066
1067
1068 static gboolean drawarea_draw_callback(GtkWidget *widget, cairo_t *cr, gpointer user_data)
1069 {
1070 ChartStack *chart = GTK_CHARTSTACK(user_data);
1071
1072 if( !gtk_widget_get_realized(widget) || chart->surface == NULL )
1073 return FALSE;
1074
1075 //DB( g_print("\n[chartstack] drawarea draw cb\n") );
1076
1077 cairo_set_source_surface (cr, chart->surface, 0, 0);
1078 cairo_paint (cr);
1079
1080 /* always redraw directly the active block */
1081 gint first;
1082 double ox, oy;
1083
1084 first = (gint)gtk_adjustment_get_value(GTK_ADJUSTMENT(chart->adjustment));
1085 ox = chart->l + chart->cat_col_w;
1086 oy = chart->t + chart->title_zh + chart->header_zh + chart->subtitle_zh;
1087
1088
1089 if(chart->active != -1)
1090 {
1091 DB( g_print(" draw active\n") );
1092
1093 cairo_rectangle(cr, chart->l, chart->t, chart->w, chart->h);
1094 cairo_clip(cr);
1095
1096 oy += CHART_SPACING/2 + (chart->active - first) * chart->blkw;
1097 //cairo_user_set_rgbacol (cr, &global_colors[THTEXT], 0.78);
1098 cairo_user_set_rgbacol(cr, &global_colors[WHITE], OVER_ALPHA);
1099 //cairo_move_to(cr, chart->l, chart->t);
1100 cairo_rectangle(cr, ox, oy, chart->graph_width, chart->barw);
1101 cairo_fill(cr);
1102 }
1103
1104 return FALSE;
1105 }
1106
1107
1108 static gboolean drawarea_motionnotifyevent_callback(GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
1109 {
1110 ChartStack *chart = GTK_CHARTSTACK(user_data);
1111 gint x, y;
1112
1113 if(chart->surface == NULL || chart->nb_items == 0)
1114 return FALSE;
1115
1116 DB( g_print("\n[chartstack] drawarea motion cb\n") );
1117 x = event->x;
1118 y = event->y;
1119
1120 //todo see this
1121 if(event->is_hint)
1122 {
1123 //DB( g_print(" is hint\n") );
1124
1125 gdk_window_get_device_position(event->window, event->device, &x, &y, NULL);
1126 //gdk_window_get_pointer(event->window, &x, &y, NULL);
1127 //return FALSE;
1128 }
1129
1130 chart->active = ui_chart_stack_get_active(widget, x, y, chart);
1131
1132
1133 // rollover redraw ?
1134 DB( g_print(" %d, %d :: active: last=%d, curr=%d\n", x, y, chart->lastactive, chart->active) );
1135
1136 if(chart->lastactive != chart->active)
1137 {
1138 GdkRectangle update_rect;
1139 gint first;
1140 double oy;
1141
1142 DB( g_print(" motion rollover redraw :: active=%d\n", chart->active) );
1143
1144 first = (gint)gtk_adjustment_get_value(GTK_ADJUSTMENT(chart->adjustment));
1145 oy = chart->t + chart->title_zh + chart->header_zh + chart->subtitle_zh;
1146
1147 if(chart->lastactive != -1)
1148 {
1149 update_rect.x = chart->l;
1150 update_rect.y = oy + (chart->lastactive - first) * chart->blkw;
1151 update_rect.width = chart->r;
1152 update_rect.height = chart->blkw;
1153
1154 /* Now invalidate the affected region of the drawing area. */
1155 gdk_window_invalidate_rect (gtk_widget_get_window (widget),
1156 &update_rect,
1157 FALSE);
1158 }
1159
1160 update_rect.x = chart->l;
1161 update_rect.y = oy + (chart->active - first) * chart->blkw;
1162 update_rect.width = chart->r;
1163 update_rect.height = chart->blkw;
1164
1165 /* Now invalidate the affected region of the drawing area. */
1166 gdk_window_invalidate_rect (gtk_widget_get_window (widget),
1167 &update_rect,
1168 FALSE);
1169
1170 //gtk_widget_queue_draw( widget );
1171 //retval = FALSE;
1172 }
1173
1174 chart->lastactive = chart->active;
1175
1176 return TRUE;
1177 }
1178
1179
1180 static gboolean drawarea_scroll_event_callback( GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
1181 {
1182 ChartStack *chart = GTK_CHARTSTACK(user_data);
1183 GtkAdjustment *adj = chart->adjustment;
1184 gdouble first, upper, pagesize;
1185
1186 DB( g_print("\n[chartstack] scroll\n") );
1187
1188 first = gtk_adjustment_get_value(GTK_ADJUSTMENT(adj));
1189 //lower = gtk_adjustment_get_lower(GTK_ADJUSTMENT(adj));
1190 upper = gtk_adjustment_get_upper(GTK_ADJUSTMENT(adj));
1191 pagesize = gtk_adjustment_get_page_size(GTK_ADJUSTMENT(adj));
1192
1193 DB( g_print("- pos is %.2f, [%.2f - %.2f]\n", first, 0.0, upper) );
1194
1195 switch(event->direction)
1196 {
1197 case GDK_SCROLL_UP:
1198 gtk_adjustment_set_value(adj, first - 1);
1199 break;
1200 case GDK_SCROLL_DOWN:
1201 gtk_adjustment_set_value(adj, CLAMP(first + 1, 0, upper - pagesize) );
1202 break;
1203 default:
1204 break;
1205 }
1206
1207 drawarea_full_redraw(widget, user_data);
1208
1209 return TRUE;
1210 }
1211
1212
1213 /* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
1214 /* public functions */
1215 /* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
1216
1217 static void ui_chart_stack_queue_redraw(ChartStack *chart)
1218 {
1219
1220 if( gtk_widget_get_realized(GTK_WIDGET(chart)) )
1221 {
1222 ui_chart_stack_recompute(chart);
1223 drawarea_full_redraw(chart->drawarea, chart);
1224 //gtk_widget_queue_draw( chart->drawarea );
1225 }
1226 }
1227
1228 /*
1229 ** change the model and/or column
1230 */
1231 void ui_chart_stack_set_dualdatas(ChartStack *chart, GtkTreeModel *model, gchar *coltitle1, gchar *coltitle2, gchar *title, gchar *subtitle)
1232 {
1233 g_return_if_fail (GTK_IS_CHARTSTACK (chart));
1234
1235 if( GTK_IS_TREE_MODEL(model) )
1236 {
1237 ui_chart_stack_setup_with_model(chart, model, coltitle1, coltitle2 );
1238 if(title != NULL)
1239 chart->title = g_strdup(title);
1240 if(subtitle != NULL)
1241 chart->subtitle = g_strdup(subtitle);
1242
1243 ui_chart_stack_queue_redraw(chart);
1244 }
1245 else
1246 {
1247 ui_chart_stack_clear(chart, TRUE);
1248 }
1249 }
1250
1251 /*
1252 ** change the tooltip title
1253 */
1254 void ui_chart_stack_set_title(ChartStack * chart, gchar *title)
1255 {
1256 g_return_if_fail (GTK_IS_CHARTSTACK (chart));
1257
1258 chart->title = g_strdup(title);
1259
1260 DB( g_print("\n[chartstack] set title = %s\n", chart->title) );
1261
1262 ui_chart_stack_recompute(chart);
1263
1264 }
1265
1266 void ui_chart_stack_set_subtitle(ChartStack * chart, gchar *subtitle)
1267 {
1268 g_return_if_fail (GTK_IS_CHARTSTACK (chart));
1269
1270 chart->subtitle = g_strdup(subtitle);
1271
1272 DB( g_print("\n[chartstack] set period = %s\n", chart->subtitle) );
1273
1274 ui_chart_stack_recompute(chart);
1275
1276 }
1277
1278
1279 /*
1280 ** change the minor visibility
1281 */
1282 void ui_chart_stack_show_minor(ChartStack * chart, gboolean minor)
1283 {
1284 g_return_if_fail (GTK_IS_CHARTSTACK (chart));
1285
1286 chart->minor = minor;
1287
1288 ui_chart_stack_queue_redraw(chart);
1289
1290 }
1291
1292 void ui_chart_stack_set_color_scheme(ChartStack * chart, gint index)
1293 {
1294 colorscheme_init(&chart->color_scheme, index);
1295 }
1296
1297
1298 /*
1299 ** set the minor parameters
1300 */
1301 /*void ui_chart_stack_set_minor_prefs(ChartStack * chart, gdouble rate, gchar *symbol)
1302 {
1303 g_return_if_fail (GTK_IS_CHARTSTACK (chart));
1304
1305 chart->minor_rate = rate;
1306 chart->minor_symbol = symbol;
1307 }*/
1308
1309 void ui_chart_stack_set_currency(ChartStack * chart, guint32 kcur)
1310 {
1311 g_return_if_fail (GTK_IS_CHARTSTACK (chart));
1312
1313 chart->kcur = kcur;
1314 }
1315
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