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/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "panelmanager.h"
#include "config/config.h"
OLIVE_NAMESPACE_ENTER
PanelManager* PanelManager::instance_ = nullptr;
PanelManager::PanelManager(QObject *parent) :
QObject(parent),
locked_(false),
last_focused_panel_(nullptr)
{
}
void PanelManager::DeleteAllPanels()
{
// Prevent any confusion regarding focus history by clearing it first
QList<PanelWidget*> copy = focus_history_;
focus_history_.clear();
qDeleteAll(copy);
}
const QList<PanelWidget *> &PanelManager::panels()
{
return focus_history_;
}
PanelWidget *PanelManager::CurrentlyFocused() const
{
// If hover focus is enabled, find the currently hovered panel and return it (if no panel is hovered, resort to
// default behavior)
if (Config::Current()["HoverFocus"].toBool()) {
PanelWidget* hovered = CurrentlyHovered();
if (hovered != nullptr) {
return hovered;
}
}
if (focus_history_.isEmpty()) {
return nullptr;
}
return focus_history_.first();
}
PanelWidget *PanelManager::CurrentlyHovered() const
{
foreach (PanelWidget* panel, focus_history_) {
if (panel->underMouse()) {
return panel;
}
}
return nullptr;
}
bool PanelManager::ArePanelsLocked()
{
return locked_;
}
void PanelManager::CreateInstance()
{
instance_ = new PanelManager();
}
void PanelManager::DestroyInstance()
{
delete instance_;
}
PanelManager *PanelManager::instance()
{
return instance_;
}
void PanelManager::FocusChanged(QWidget *old, QWidget *now)
{
Q_UNUSED(old)
QObject* parent = now;
PanelWidget* panel_cast_test;
// Loop through widget's parent hierarchy
while (parent != nullptr) {
// Use dynamic_cast to test if this object is a PanelWidget
panel_cast_test = dynamic_cast<PanelWidget*>(parent);
if (panel_cast_test) {
if (last_focused_panel_ != panel_cast_test) {
// If so, bump this to the top of the focus history
int panel_index = focus_history_.indexOf(panel_cast_test);
// Disable highlight border on old panel
if (!focus_history_.isEmpty()) {
focus_history_.first()->SetBorderVisible(false);
}
// Enable new border's highlight
panel_cast_test->SetBorderVisible(true);
// If it's not in the focus history, prepend it, otherwise move it
if (panel_index == -1) {
focus_history_.prepend(panel_cast_test);
} else {
focus_history_.move(panel_index, 0);
}
last_focused_panel_ = panel_cast_test;
emit FocusedPanelChanged(panel_cast_test);
}
break;
}
parent = parent->parent();
}
}
void PanelManager::SetPanelsLocked(bool locked)
{
foreach (PanelWidget* panel, focus_history_) {
// Only affect panels actually in our layout
if (!panel->isFloating()) {
panel->SetMovementLocked(locked);
}
}
locked_ = locked;
}
void PanelManager::PanelDestroyed()
{
PanelWidget* panel = static_cast<PanelWidget*>(sender());
focus_history_.removeOne(panel);
if (last_focused_panel_ == panel) {
last_focused_panel_ = focus_history_.isEmpty() ? nullptr : focus_history_.first();
}
}
OLIVE_NAMESPACE_EXIT
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