src/gui.h

/*
 *  LDForge: LDraw parts authoring CAD
 *  Copyright (C) 2013 Santeri Piippo
 *
 *  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/>.
 */

#ifndef GUI_H
#define GUI_H

#include <QMainWindow>
#include <QAction>
#include <QListWidget>
#include <QRadioButton>
#include "config.h"
#include "ldtypes.h"

class MessageManager;
class ForgeWindow;
class LDColor;
class QToolButton;
class QDialogButtonBox;
class GLRenderer;
class QComboBox;
class QProgressBar;
class Ui_LDForgeUI;

// Stuff for dialogs
#define IMPLEMENT_DIALOG_BUTTONS \
	bbx_buttons = new QDialogButtonBox (QDialogButtonBox::Ok | QDialogButtonBox::Cancel); \
	connect (bbx_buttons, SIGNAL (accepted()), this, SLOT (accept())); \
	connect (bbx_buttons, SIGNAL (rejected()), this, SLOT (reject())); \
 
// =============================================================================
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// =============================================================================
#define DEFINE_ACTION(NAME, DEFSHORTCUT) \
	cfg (KeySequence, key_##NAME, DEFSHORTCUT); \
	void actiondef_##NAME()

#define ACTION(N) g_win->action##N()

// Convenience macros for key sequences.
#define KEY(N) (Qt::Key_##N)
#define CTRL(N) (Qt::CTRL | Qt::Key_##N)
#define SHIFT(N) (Qt::SHIFT | Qt::Key_##N)
#define CTRL_SHIFT(N) (Qt::CTRL | Qt::SHIFT | Qt::Key_##N)

// =============================================================================
class LDQuickColor
{	PROPERTY (LDColor*, color, setColor)
	PROPERTY (QToolButton*, toolButton, setToolButton)

	public:
		LDQuickColor (LDColor* color, QToolButton* toolButton);
		bool isSeparator() const;

		static LDQuickColor getSeparator();
};

// =============================================================================
// ObjectList
//
// Object list class for ForgeWindow
// =============================================================================
class ObjectList : public QListWidget
{	Q_OBJECT

	protected:
		void contextMenuEvent (QContextMenuEvent* ev);
};

// =============================================================================
// ForgeWindow
//
// The one main GUI class. Hosts the renderer, object list, message log. Contains
// slot_action, which is what all actions connect to. Manages menus and toolbars.
// Large and in charge.
// =============================================================================
class ForgeWindow : public QMainWindow
{	Q_OBJECT

	public:
		ForgeWindow();
		void buildObjList();
		void updateTitle();
		void fullRefresh();
		void refresh();
		int getInsertionPoint();
		void updateToolBars();
		void updateRecentFilesMenu();
		void updateSelection();
		void updateGridToolBar();
		void updateEditModeActions();
		void updateFileList();
		void updateFileListItem (LDFile* f);
		bool isSelected (LDObject* obj);
		short getSelectedColor();
		LDObject::Type uniformSelectedType();
		void scrollToSelection();
		void spawnContextMenu (const QPoint pos);
		void deleteObjVector (QList< LDObject* > objs);
		int deleteSelection();
		void deleteByColor (const short int colnum);
		void save (LDFile* f, bool saveAs);

		inline GLRenderer* R()
		{	return m_renderer;
		}

		inline QList<LDObject*>& sel()
		{	return m_sel;
		}

		inline void setQuickColors (QList<LDQuickColor>& colors)
		{	m_quickColors = colors;
		}

		void setStatusBarText (str text);
		void addMessage (str msg);
		Ui_LDForgeUI* interface() const;
		void refreshObjectList();
		void beginAction (QAction* act);
		void endAction();

#define act(N) QAction* action##N();
#include "actions.h"

	public slots:
		void primitiveLoaderStart (int max);
		void primitiveLoaderUpdate (int prog);
		void primitiveLoaderEnd();
		void clearSelection();
		void slot_action();
		void changeCurrentFile();

	protected:
		void closeEvent (QCloseEvent* ev);

	private:
		GLRenderer* m_renderer;
		QProgressBar* m_primLoaderBar;
		QWidget* m_primLoaderWidget;
		QList<LDObject*> m_sel;
		QList<LDQuickColor> m_quickColors;
		QList<QToolButton*> m_colorButtons;
		QList<QAction*> m_recentFiles;
		MessageManager* m_msglog;
		Ui_LDForgeUI* ui;

		void invokeAction (QAction* act, void (*func) ());


	private slots:
		void slot_selectionChanged();
		void slot_recentFile();
		void slot_quickColor();
		void slot_lastSecondCleanup();
		void slot_editObject (QListWidgetItem* listitem);
};

#define INVOKE_ACTION(N) actiondef_##N();
#define act(N) void actiondef_##N();
#include "actions.h"

// -----------------------------------------------------------------------------
// Pointer to the instance of ForgeWindow.
extern ForgeWindow* g_win;

// -----------------------------------------------------------------------------
// Other GUI-related stuff not directly part of ForgeWindow:
QPixmap getIcon (str iconName); // Get an icon from the resource dir
QList<LDQuickColor> quickColorsFromConfig(); // Make a list of quick colors based on config
bool confirm (str title, str msg); // Generic confirm prompt
bool confirm (str msg); // Generic confirm prompt
void critical (str msg); // Generic error prompt
QIcon makeColorIcon (LDColor* colinfo, const int size); // Makes an icon for the given color
void makeColorSelector (QComboBox* box); // Fills the given combo-box with color information
QImage imageFromScreencap (uchar* data, int w, int h);

// =============================================================================
// -----------------------------------------------------------------------------
// Takes in pairs of radio buttons and respective values and returns the value of
// the first found radio button that was checked.
// =============================================================================
template<class T> T radioSwitch (const T& defval, QList<pair<QRadioButton*, T>> haystack)
{	for (pair<QRadioButton*, const T&> i : haystack)
		if (i.first->isChecked())
			return i.second;

	return defval;
}

// =============================================================================
// -----------------------------------------------------------------------------
// Takes in pairs of radio buttons and respective values and checks the first
// found radio button to have the given value.
// =============================================================================
template<class T> void radioDefault (const T& expr, QList<pair<QRadioButton*, T>> haystack)
{	for (pair<QRadioButton*, const T&> i : haystack)
	{	if (i.second == expr)
		{	i.first->setChecked (true);
			return;
		}
	}
}

#endif // GUI_H