UI: Rename 'obs' dir to 'UI'

This is to prevent confusion both when prefixing commits and when
reading the directory structure for the first time.

UI/hotkey-edit.hpp

@@ -0,0 +1,158 @@
+/******************************************************************************
+    Copyright (C) 2014-2015 by Ruwen Hahn <palana@stunned.de>
+
+    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 2 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 <QLineEdit>
+#include <QKeyEvent>
+#include <QPushButton>
+#include <QVBoxLayout>
+#include <QWidget>
+#include <QPointer>
+#include <QLabel>
+
+#include <obs.hpp>
+
+class OBSHotkeyWidget;
+
+class OBSHotkeyLabel : public QLabel {
+	Q_OBJECT
+
+public:
+	QPointer<OBSHotkeyLabel> pairPartner;
+	QPointer<OBSHotkeyWidget> widget;
+	void highlightPair(bool highlight);
+	void enterEvent(QEvent *event) override;
+	void leaveEvent(QEvent *event) override;
+	void setToolTip(const QString &toolTip);
+};
+
+class OBSHotkeyEdit : public QLineEdit {
+	Q_OBJECT;
+
+public:
+	OBSHotkeyEdit(obs_key_combination_t original,
+			QWidget *parent=nullptr)
+		: QLineEdit(parent),
+		  original(original)
+	{
+#ifdef __APPLE__
+		// disable the input cursor on OSX, focus should be clear
+		// enough with the default focus frame
+		setReadOnly(true);
+#endif
+		setAttribute(Qt::WA_MacShowFocusRect, true);
+		InitSignalHandler();
+		ResetKey();
+	}
+
+	obs_key_combination_t original;
+	obs_key_combination_t key;
+	bool                  changed = false;
+protected:
+	OBSSignal             layoutChanged;
+
+	void InitSignalHandler();
+
+	void keyPressEvent(QKeyEvent *event) override;
+#ifdef __APPLE__
+	void keyReleaseEvent(QKeyEvent *event) override;
+#endif
+	void mousePressEvent(QMouseEvent *event) override;
+
+	void HandleNewKey(obs_key_combination_t new_key);
+	void RenderKey();
+
+public slots:
+	void ReloadKeyLayout();
+	void ResetKey();
+	void ClearKey();
+
+signals:
+	void KeyChanged(obs_key_combination_t);
+};
+
+class OBSHotkeyWidget : public QWidget {
+	Q_OBJECT;
+
+public:
+	OBSHotkeyWidget(obs_hotkey_id id, std::string name,
+			const std::vector<obs_key_combination_t> &combos={},
+			QWidget *parent=nullptr)
+		: QWidget(parent),
+		  id(id),
+		  name(name),
+		  bindingsChanged(obs_get_signal_handler(),
+				  "hotkey_bindings_changed",
+				  &OBSHotkeyWidget::BindingsChanged,
+				  this)
+	{
+		auto layout = new QVBoxLayout;
+		layout->setSpacing(0);
+		layout->setMargin(0);
+		setLayout(layout);
+
+		SetKeyCombinations(combos);
+	}
+
+	void SetKeyCombinations(const std::vector<obs_key_combination_t>&);
+
+	obs_hotkey_id id;
+	std::string name;
+
+	bool changed = false;
+	bool Changed() const;
+
+	QPointer<OBSHotkeyLabel> label;
+
+	QString toolTip;
+	void setToolTip(const QString &toolTip_)
+	{
+		toolTip = toolTip_;
+		for (auto &edit : edits)
+			edit->setToolTip(toolTip_);
+	}
+
+	void Apply();
+	void GetCombinations(std::vector<obs_key_combination_t>&) const;
+	void Save();
+	void Save(std::vector<obs_key_combination_t> &combinations);
+
+	void enterEvent(QEvent *event) override;
+	void leaveEvent(QEvent *event) override;
+
+private:
+	void AddEdit(obs_key_combination combo, int idx=-1);
+	void RemoveEdit(size_t idx, bool signal=true);
+
+	static void BindingsChanged(void *data, calldata_t *param);
+
+	std::vector<QPointer<OBSHotkeyEdit>> edits;
+	std::vector<QPointer<QPushButton>> removeButtons;
+	std::vector<QPointer<QPushButton>> revertButtons;
+	OBSSignal bindingsChanged;
+	bool ignoreChangedBindings = false;
+
+	QVBoxLayout *layout() const
+	{
+		return dynamic_cast<QVBoxLayout*>(QWidget::layout());
+	}
+
+private slots:
+	void HandleChangedBindings(obs_hotkey_id id_);
+
+signals:
+	void KeyChanged();
+};