2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
4 * Copyright 2017 Olaf Wintermann. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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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
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26 * POSSIBILITY OF SUCH DAMAGE.
33 #include "container.h"
34 #include <ucx/mempool.h>
35 #include "../common/context.h"
36 #include "../common/object.h"
39 static UIWIDGET ui_scrollbar(UiObject *obj, UiOrientation orientation, UiRange *range, ui_callback f, void *userdata) {
41 GtkWidget *scrollbar = gtk_scrollbar_new(orientation == UI_HORIZONTAL ? GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL, NULL);
44 if(orientation == UI_HORIZONTAL) {
45 scrollbar = gtk_hscrollbar_new(NULL);
47 scrollbar = gtk_hscrollbar_new(NULL);
52 range->get = ui_scrollbar_get;
53 range->set = ui_scrollbar_set;
54 range->setrange = ui_scrollbar_setrange;
55 range->setextent = ui_scrollbar_setextent;
56 range->obj = scrollbar;
60 UiEventData *event = malloc(sizeof(UiEventData));
62 event->userdata = userdata;
69 G_CALLBACK(ui_scrollbar_value_changed),
74 G_CALLBACK(ui_destroy_userdata),
78 UiContainer *ct = uic_get_current_container(obj);
79 ct->add(ct, scrollbar, FALSE);
84 UIWIDGET ui_hscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
85 return ui_scrollbar(obj, UI_HORIZONTAL, range, f, userdata);
88 UIWIDGET ui_vscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
89 return ui_scrollbar(obj, UI_VERTICAL, range, f, userdata);
92 gboolean ui_scrollbar_value_changed(GtkRange *range, UiEventData *event) {
95 e.window = event->obj->window;
96 e.document = event->obj->ctx->document;
98 e.intval = event->value;
99 event->callback(&e, event->userdata);
103 double ui_scrollbar_get(UiRange *range) {
104 double value = gtk_range_get_value(GTK_RANGE(range->obj));
105 range->value = value;
109 void ui_scrollbar_set(UiRange *range, double value) {
110 gtk_range_set_value(GTK_RANGE(range->obj), value);
111 range->value = value;
114 void ui_scrollbar_setrange(UiRange *range, double min, double max) {
115 gtk_range_set_range(GTK_RANGE(range->obj), min, max);
120 void ui_scrollbar_setextent(UiRange *range, double extent) {
121 GtkAdjustment *a = gtk_range_get_adjustment(GTK_RANGE(range->obj));
123 a->page_size = extent;
125 gtk_adjustment_set_page_size(a, extent);
127 #if !(GTK_MAJOR_VERSION >= 3 && GTK_MINOR_VERSION >= 18)
128 gtk_adjustment_changed(a);
130 range->extent = extent;