ui/gtk/graphics.c

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1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2012 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
32 #include "graphics.h"
33 #include "container.h"
34 #include "../common/object.h"
35
36 UIWIDGET ui_drawingarea(UiObject *obj, ui_drawfunc f, void *userdata) {
37 GtkWidget *widget = gtk_drawing_area_new();
38
39 if(f) {
40 UiDrawEvent *event = malloc(sizeof(UiDrawEvent));
41 event->obj = obj;
42 event->callback = f;
43 event->userdata = userdata;
44 ui_connect_draw_handler(widget, event);
45 }
46
47 UiContainer *ct = uic_get_current_container(obj);
48 ct->add(ct, widget, TRUE);
49
50 return widget;
51 }
52
53 // text layout
54 UiTextLayout* ui_text(UiGraphics *g) {
55 UiTextLayout *layout = malloc(sizeof(UiTextLayout));
56 PangoContext *pc = ui_get_pango_context(g);
57 layout->layout = pango_layout_new(pc);
58 return layout;
59 }
60
61 void ui_text_setstring(UiTextLayout *layout, char *str) {
62 pango_layout_set_text(layout->layout, str, -1);
63 }
64
65 void ui_text_setstringl(UiTextLayout *layout, char *str, int len) {
66 pango_layout_set_text(layout->layout, str, len);
67 }
68
69 void ui_text_setfont(UiTextLayout *layout, char *font, int size) {
70 PangoFontDescription *fontDesc;
71 fontDesc = pango_font_description_from_string(font);
72 pango_font_description_set_size(fontDesc, size * PANGO_SCALE);
73 pango_layout_set_font_description(layout->layout, fontDesc);
74 pango_font_description_free(fontDesc);
75 }
76
77 void ui_text_getsize(UiTextLayout *layout, int *width, int *height) {
78 pango_layout_get_size(layout->layout, width, height);
79 *width = *width / PANGO_SCALE;
80 *height = *height / PANGO_SCALE;
81 }
82
83 void ui_text_setwidth(UiTextLayout *layout, int width) {
84 pango_layout_set_width(layout->layout, width * PANGO_SCALE);
85 pango_layout_set_ellipsize(layout->layout, PANGO_ELLIPSIZE_END);
86 //pango_layout_set_wrap(layout->layout, PANGO_WRAP_WORD_CHAR);
87 }
88
89 void ui_text_free(UiTextLayout *text) {
90 g_object_unref(text->layout);
91 free(text);
92 }

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