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authorBent Bisballe Nyeng <deva@aasimon.org>2020-12-29 16:09:43 +0100
committerBent Bisballe Nyeng <deva@aasimon.org>2020-12-29 16:39:54 +0100
commit645250e1cd8ce9bc1faea599df7a1b05836bfeb8 (patch)
treec6311afab3900d2dd2aecbfbe1ac348d0e48c428 /dggui/tabwidget.cc
parentdce64999d3325c5b55499d6ba657066efa48fbff (diff)
Split UI code into application/plugin UI and UI library.
Diffstat (limited to 'dggui/tabwidget.cc')
-rw-r--r--dggui/tabwidget.cc214
1 files changed, 214 insertions, 0 deletions
diff --git a/dggui/tabwidget.cc b/dggui/tabwidget.cc
new file mode 100644
index 0000000..635f1bd
--- /dev/null
+++ b/dggui/tabwidget.cc
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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);
+}
+
+TabID 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());
+ return button.getID();
+}
+
+void TabWidget::setTabWidth(std::size_t width)
+{
+ tab_width = width;
+ relayout();
+}
+
+std::size_t TabWidget::getTabWidth() const
+{
+ return tab_width;
+}
+
+void TabWidget::setVisible(TabID tab_id, bool visible)
+{
+ for (auto& button : buttons)
+ {
+ if(button.getID() == tab_id)
+ {
+ button.setVisible(visible);
+ relayout();
+ return;
+ }
+ }
+}
+
+std::size_t TabWidget::getBarHeight() const
+{
+ return topbar.height();
+}
+
+void TabWidget::rotateTab(float delta)
+{
+ Widget* widget{nullptr};
+ Widget* current = stack.getCurrentWidget();
+ if(delta > 0.0f)
+ {
+ while((widget = stack.getWidgetAfter(current)) != nullptr)
+ {
+ auto button = getButtonFromWidget(widget);
+ if(!button || !button->visible())
+ {
+ current = widget;
+ continue;
+ }
+ break;
+ }
+ }
+ else
+ {
+ while((widget = stack.getWidgetBefore(current)) != nullptr)
+ {
+ auto button = getButtonFromWidget(widget);
+ if(!button || !button->visible())
+ {
+ current = widget;
+ continue;
+ }
+ break;
+ }
+ }
+
+ if(widget)
+ {
+ switchTab(widget);
+ }
+}
+
+void TabWidget::switchTab(Widget* tab_widget)
+{
+ stack.setCurrentWidget(tab_widget);
+}
+
+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 = tab_width;
+ 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)
+ {
+ if(!button.visible())
+ {
+ continue;
+ }
+ 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)
+ {
+ if(!button.visible())
+ {
+ continue;
+ }
+ 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));
+}
+
+void TabWidget::relayout()
+{
+ sizeChanged(TabWidget::width(), TabWidget::height()); // Force re-layout
+}
+
+const TabButton* TabWidget::getButtonFromWidget(const Widget* tab_widget)
+{
+ if(tab_widget == nullptr)
+ {
+ return nullptr;
+ }
+
+ for(auto& button : buttons)
+ {
+ if(button.getTabWidget() == tab_widget)
+ {
+ return &button;
+ }
+ }
+
+ return nullptr;
+}
+
+} // GUI::