ui/gtk/display.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2017 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdlib.h>

#include "display.h"
#include "container.h"
#include "../common/context.h"
#include "../common/object.h"

static void set_alignment(GtkWidget *widget, float xalign, float yalign) {
#if GTK_MAJOR_VERSION >= 3 && GTK_MINOR_VERSION >= 16
    gtk_label_set_xalign(GTK_LABEL(widget), xalign);
    gtk_label_set_yalign(GTK_LABEL(widget), yalign);
#else
    gtk_misc_set_alignment(GTK_MISC(widget), xalign, yalign);
#endif
}

UIWIDGET ui_label(UiObject *obj, char *label) { 
    GtkWidget *widget = gtk_label_new(label);
    
    UiContainer *ct = uic_get_current_container(obj);
    ct->add(ct, widget, FALSE);
    
    return widget;
}

UIWIDGET ui_llabel(UiObject *obj, char *label) {
    UIWIDGET widget = ui_label(obj, label);
    set_alignment(widget, 0, .5);
    return widget;
}

UIWIDGET ui_rlabel(UiObject *obj, char *label) {
    UIWIDGET widget = ui_label(obj, label);
    //gtk_label_set_justify(GTK_LABEL(widget), GTK_JUSTIFY_RIGHT);
    
    set_alignment(widget, 1, .5);
    return widget;
}

UIWIDGET ui_space(UiObject *obj) {
    GtkWidget *widget = gtk_label_new("");
    UiContainer *ct = uic_get_current_container(obj);
    ct->add(ct, widget, TRUE);
    
    return widget;
}

UIWIDGET ui_separator(UiObject *obj) {
#if UI_GTK3
    GtkWidget *widget = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
#else
    GtkWidget *widget = gtk_hseparator_new();
#endif
    UiContainer *ct = uic_get_current_container(obj);
    ct->add(ct, widget, FALSE);
    
    return widget;
}

/* ------------------------- progress bar ------------------------- */

UIWIDGET ui_progressbar(UiObject *obj, UiDouble *value) {
    UiVar *var = malloc(sizeof(UiVar));
    var->value = value;
    var->type = UI_VAR_SPECIAL;
    return ui_progressbar_var(obj, var);
}

UIWIDGET ui_progressbar_nv(UiObject *obj, char *varname) {
    UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_DOUBLE);
    return ui_progressbar_var(obj, var);
}

UIWIDGET ui_progressbar_var(UiObject *obj, UiVar *var) {
    GtkWidget *progressbar = gtk_progress_bar_new();
    if(var && var->value) {
        UiDouble *value = var->value;
        value->get = ui_progressbar_get;
        value->set = ui_progressbar_set;
        value->obj = progressbar;
        gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progressbar), 0.5);
    }
    
    UiContainer *ct = uic_get_current_container(obj);
    ct->add(ct, progressbar, FALSE);
    
    return progressbar;
}

double ui_progressbar_get(UiDouble *d) {
    d->value = gtk_progress_bar_get_fraction(GTK_PROGRESS_BAR(d->obj));
    return d->value;
}

void ui_progressbar_set(UiDouble *d, double value) {
    gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(d->obj), value);
    d->value = value;
}