ui/qt/button.cpp

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2025 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
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */

#include "button.h"
#include "container.h"
#include "toolkit.h"

UIWIDGET ui_button_create(UiObject* obj, UiButtonArgs *args) {
    UiContainerPrivate *ctn = ui_obj_container(obj);
    UI_APPLY_LAYOUT(ctn->layout, args);
    
    QString str = QString::fromUtf8(args->label);
    QPushButton *button = new QPushButton(str);
    
    if(args->onclick) {
        UiEventWrapper *event = new UiEventWrapper(obj, args->onclick, args->onclickdata);
        button->connect(button, SIGNAL(clicked()), event, SLOT(slot()));
        button->connect(button, SIGNAL(destroyed()), event, SLOT(destroy()));
    }
    
    ctn->add(button);
    
    return button;
}

void ui_button_set_label(UIWIDGET button, const char *label) {
    QString str = QString::fromUtf8(label);
    QAbstractButton *b = (QAbstractButton*)button;
    b->setText(str);
}

void ui_button_set_icon(UIWIDGET button, const char *icon) {
    // TODO
}

static void togglebutton_event(UiEvent *event, UiEventWrapper *wrapper) {
    QPushButton *button = (QPushButton*)wrapper->customdata1;
    event->intval = button->isChecked();
    if(wrapper->var) {
        event->eventdata = wrapper->var->value;
        event->eventdatatype = UI_EVENT_DATA_INTEGER_VALUE;
    }
}

UIWIDGET ui_togglebutton_create(UiObject* obj, UiToggleArgs *args) {
    UiContainerPrivate *ctn = ui_obj_container(obj);
    UI_APPLY_LAYOUT(ctn->layout, args);
    
    QString str = QString::fromUtf8(args->label);
    QPushButton *button = new QPushButton(str);
    button->setCheckable(true);
    
    UiVar* var = uic_widget_var(obj->ctx, obj->ctx, args->value, args->varname, UI_VAR_INTEGER);
    
    if(args->onchange) {
        UiEventWrapper *event = new UiEventWrapper(obj, args->onchange, args->onchangedata);
        event->var = var;
        event->customdata1 = button;
        event->prepare_event = togglebutton_event;
        button->connect(button, SIGNAL(clicked()), event, SLOT(slot()));
        button->connect(button, SIGNAL(destroyed()), event, SLOT(destroy()));
    }
    
    if(var) {
        UiInteger *i = (UiInteger*)var->value;
        
        if(i->value) {
            button->setChecked(true);
        }
        
        i->obj = button;
        i->get = ui_togglebutton_get;
        i->set = ui_togglebutton_set;
    }
    
    ctn->add(button);
    
    return button;
}

int64_t ui_togglebutton_get(UiInteger *value) {
    QPushButton *button = (QPushButton*)value->obj;
    value->value = button->isChecked();
    return value->value;
}

void ui_togglebutton_set(UiInteger *value, int64_t i) {
    QPushButton *button = (QPushButton*)value->obj;
    value->value = i;
    if(i != 0) {
        button->setChecked(true);
    }
}

static void checkbox_event(UiEvent *event, UiEventWrapper *wrapper) {
    QPushButton *button = (QPushButton*)wrapper->customdata1;
    event->intval = button->isChecked();
    if(wrapper->var) {
        event->eventdata = wrapper->var->value;
        event->eventdatatype = UI_EVENT_DATA_INTEGER_VALUE;
    }
}


UIWIDGET ui_checkbox_create(UiObject* obj, UiToggleArgs *args) {
    UiContainerPrivate *ctn = ui_obj_container(obj);
    UI_APPLY_LAYOUT(ctn->layout, args);
    
    QString str = QString::fromUtf8(args->label);
    QCheckBox *checkbox = new QCheckBox(str);
    
    UiVar* var = uic_widget_var(obj->ctx, obj->ctx, args->value, args->varname, UI_VAR_INTEGER);
    
    if(args->onchange) {
        UiEventWrapper *event = new UiEventWrapper(obj, args->onchange, args->onchangedata);
        event->var = var;
        event->customdata1 = checkbox;
        event->prepare_event = checkbox_event;
        checkbox->connect(checkbox, SIGNAL(clicked()), event, SLOT(slot()));
        checkbox->connect(checkbox, SIGNAL(destroyed()), event, SLOT(destroy()));
    }
    
    if(var) {
        UiInteger *i = (UiInteger*)var->value;
        
        if(i->value) {
            checkbox->setChecked(true);
        }
        
        i->obj = checkbox;
        i->get = ui_checkbox_get;
        i->set = ui_checkbox_set;
    }
    
    ctn->add(checkbox);
    
    return checkbox;
}

int64_t ui_checkbox_get(UiInteger *value) {
    QPushButton *button = (QPushButton*)value->obj;
    value->value = button->isChecked();
    return value->value;
}

void ui_checkbox_set(UiInteger *value, int64_t i) {
    QPushButton *button = (QPushButton*)value->obj;
    value->value = i;
    if(i != 0) {
        button->setChecked(true);
    }
}


static void radiobutton_event(UiEvent *event, UiEventWrapper *wrapper) {
    if(wrapper->var) {
        UiInteger *value = (UiInteger*)wrapper->var->value;
        event->eventdata = value;
        event->eventdatatype = UI_EVENT_DATA_INTEGER_VALUE;
        event->intval = value->get(value);
    }
}

UIWIDGET ui_radiobutton_create(UiObject *obj, UiToggleArgs *args) {
    UiContainerPrivate *ctn = ui_obj_container(obj);
    UI_APPLY_LAYOUT(ctn->layout, args);
    
    QString str = QString::fromUtf8(args->label);
    QRadioButton *button = new QRadioButton(str);
    button->setAutoExclusive(false);
    
    UiVar* var = uic_widget_var(obj->ctx, obj->ctx, args->value, args->varname, UI_VAR_INTEGER);
    if(var) {
        UiInteger *value = (UiInteger*)var->value;
        QButtonGroup *buttonGroup = (QButtonGroup*)value->obj;
        if(!buttonGroup) {
            buttonGroup = new QButtonGroup();
            value->obj = buttonGroup;
        }
        int id = buttonGroup->buttons().size()+1;
        buttonGroup->addButton(button, id);
        if(value->value == id) {
            button->setChecked(true);
        }
        value->get = ui_radiobutton_get;
        value->set = ui_radiobutton_set;
    }
    
    UiEventWrapper *event = new UiEventWrapper(obj, args->onchange, args->onchangedata);
    event->var = var;
    event->customdata1 = button;
    event->prepare_event = togglebutton_event;
    button->connect(button, SIGNAL(clicked()), event, SLOT(slot()));
    button->connect(button, SIGNAL(destroyed()), event, SLOT(destroy()));
    
    ctn->add(button);
    
    return button;
}

int64_t ui_radiobutton_get(UiInteger *value) {
    QButtonGroup *buttonGroup = (QButtonGroup*)value->obj;
    value->value = buttonGroup->checkedId();
    return value->value;
}

void ui_radiobutton_set(UiInteger *value, int64_t i) {
    QButtonGroup *buttonGroup = (QButtonGroup*)value->obj;
    QAbstractButton *button = buttonGroup->button(i);
    if(button) {
        button->setChecked(true);
        value->value = i;
    }
}