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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* tabwidget.cc
*
* Thu Nov 24 17:46:22 CET 2016
* Copyright 2016 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "tabwidget.h"
#include "painter.h"
namespace GUI
{
TabWidget::TabWidget(Widget *parent)
: Widget(parent)
, stack(this)
{
CONNECT(this, sizeChangeNotifier, this, &TabWidget::sizeChanged);
CONNECT(&stack, currentChanged, this, &TabWidget::setActiveButtons);
}
void TabWidget::addTab(const std::string& title, Widget* widget)
{
buttons.emplace_back(this, widget);
auto& button = buttons.back();
button.setText(title);
stack.addWidget(widget);
CONNECT(&button, switchTabNotifier, this, &TabWidget::switchTab);
CONNECT(&button, scrollNotifier, this, &TabWidget::rotateTab);
sizeChanged(width(), height());
}
std::size_t TabWidget::getBarHeight() const
{
return topbar.height();
}
void TabWidget::rotateTab(float delta)
{
Widget* widget{nullptr};
if(delta > 0.0f)
{
widget = stack.getWidgetAfter(stack.getCurrentWidget());
}
else
{
widget = stack.getWidgetBefore(stack.getCurrentWidget());
}
if(widget)
{
switchTab(widget);
}
}
void TabWidget::switchTab(Widget* tabWidget)
{
stack.setCurrentWidget(tabWidget);
}
void TabWidget::setActiveButtons(Widget* current_widget)
{
for (auto& button : buttons) {
if (button.getTabWidget() == current_widget) {
button.setActive(true);
}
else {
button.setActive(false);
}
}
}
void TabWidget::sizeChanged(int width, int height)
{
std::size_t pos = 0;
int button_width = 1;
int bar_height = 25;
int button_border_width = 10;
int button_padding_left = 25;
int button_padding_inner = 3;
int logo_padding_right = button_padding_left / 2;
Painter p(*this);
if(buttons.size() > 0)
{
for (auto& button : buttons)
{
int min_width = button.getMinimalWidth();
button_width = std::max(button_width, min_width + button_border_width);
}
button_width = std::min(button_width, width / (int)buttons.size());
}
// draw the upper bar
topbar.setSize(width, bar_height);
p.drawImage(0, 0, topbar);
auto x_logo = width - toplogo.width() - logo_padding_right;
auto y_logo = (bar_height - toplogo.height()) / 2;
p.drawImage(x_logo, y_logo, toplogo);
// place the buttons
pos = button_padding_left;
for(auto& button : buttons)
{
button.resize(button_width, bar_height);
button.move(pos, 0);
pos += button_width + button_padding_inner;
}
stack.move(0, bar_height);
stack.resize(width, std::max((int)height - bar_height, 0));
}
} // GUI::
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