Makefile- button.c
- button.h
- container.c
- container.h
- display.c
- display.h
- dnd.c
- dnd.h
- draw_cairo.c
- draw_cairo.h
- draw_gdk.c
- draw_gdk.h
- entry.c
- entry.h
- graphics.c
- graphics.h
- headerbar.c
- headerbar.h
- icon.c
- icon.h
- image.c
- image.h
- list.c
- list.h
- menu.c
- menu.h
- objs.mk
- range.c
- range.h
- text.c
- text.h
- toolbar.c
- toolbar.h
- toolkit.c
- toolkit.h
- window.c
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2017 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 "range.h"
33 #include "container.h"
34 #include "../common/context.h"
35 #include "../common/object.h"
36
37
38 static UIWIDGET ui_scrollbar(UiObject *obj, UiOrientation orientation, UiRange *range, ui_callback f, void *userdata) {
39 #if GTK_MAJOR_VERSION >= 3
40 GtkWidget *scrollbar = gtk_scrollbar_new(orientation == UI_HORIZONTAL ? GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL, NULL);
41 #else
42 GtkWidget *scrollbar;
43 if(orientation == UI_HORIZONTAL) {
44 scrollbar = gtk_hscrollbar_new(NULL);
45 } else {
46 scrollbar = gtk_hscrollbar_new(NULL);
47 }
48 #endif
49
50 if(range) {
51 range->get = ui_scrollbar_get;
52 range->set = ui_scrollbar_set;
53 range->setrange = ui_scrollbar_setrange;
54 range->setextent = ui_scrollbar_setextent;
55 range->obj = scrollbar;
56 }
57
58 if(f) {
59 UiEventData *event = malloc(sizeof(UiEventData));
60 event->obj = obj;
61 event->userdata = userdata;
62 event->callback = f;
63 event->value = 0;
64 event->customdata = NULL;
65
66 g_signal_connect(
67 G_OBJECT(scrollbar),
68 "value-changed",
69 G_CALLBACK(ui_scrollbar_value_changed),
70 event);
71 g_signal_connect(
72 scrollbar,
73 "destroy",
74 G_CALLBACK(ui_destroy_userdata),
75 event);
76 }
77
78 UiContainer *ct = uic_get_current_container(obj);
79 ct->add(ct, scrollbar, FALSE);
80
81 return scrollbar;
82 }
83
84 UIWIDGET ui_hscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
85 return ui_scrollbar(obj, UI_HORIZONTAL, range, f, userdata);
86 }
87
88 UIWIDGET ui_vscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
89 return ui_scrollbar(obj, UI_VERTICAL, range, f, userdata);
90 }
91
92 gboolean ui_scrollbar_value_changed(GtkRange *range, UiEventData *event) {
93 UiEvent e;
94 e.obj = event->obj;
95 e.window = event->obj->window;
96 e.document = event->obj->ctx->document;
97 e.eventdata = NULL;
98 e.intval = event->value;
99 event->callback(&e, event->userdata);
100 return TRUE;
101 }
102
103 double ui_scrollbar_get(UiRange *range) {
104 double value = gtk_range_get_value(GTK_RANGE(range->obj));
105 range->value = value;
106 return value;
107 }
108
109 void ui_scrollbar_set(UiRange *range, double value) {
110 gtk_range_set_value(GTK_RANGE(range->obj), value);
111 range->value = value;
112 }
113
114 void ui_scrollbar_setrange(UiRange *range, double min, double max) {
115 gtk_range_set_range(GTK_RANGE(range->obj), min, max);
116 range->min = min;
117 range->max = max;
118 }
119
120 void ui_scrollbar_setextent(UiRange *range, double extent) {
121 GtkAdjustment *a = gtk_range_get_adjustment(GTK_RANGE(range->obj));
122 #ifdef UI_GTK2LEGACY
123 a->page_size = extent;
124 #else
125 gtk_adjustment_set_page_size(a, extent);
126 #endif
127 #if GTK_MAJOR_VERSION * 100 + GTK_MIMOR_VERSION < 318
128 gtk_adjustment_changed(a);
129 #endif
130 range->extent = extent;
131 }
132