//
// StatusWindow.cc for pekwm
// Copyright (C) 2017-2023 Claes Nästén <pekdon@gmail.com>
// Copyright (C) 2004-2016 the pekwm development team
//
// This program is licensed under the GNU GPL.
// See the LICENSE file for more information.
//

#include "config.h"

#include "Debug.hh"
#include "StatusWindow.hh"
#include "X11.hh"
#include "Workspaces.hh"

#include "tk/PWinObj.hh"
#include "tk/PTexture.hh"
#include "tk/Theme.hh"
#include "tk/X11Util.hh"

#include <algorithm>

//! @brief StatusWindow constructor
StatusWindow::StatusWindow(Theme* theme)
	: PDecor("STATUSWINDOW"),
	  _theme(theme),
	  _status_wo(new PWinObj(false))
{
	// PWinObj attributes
	_type = PWinObj::WO_STATUS;
	setLayer(LAYER_NONE); // hack, goes over LAYER_MENU
	_hidden = true;

	Window win =
		X11::createWmWindow(_window, 0, 0, 1, 1, CopyFromParent, None);
	_status_wo->setWindow(win);
	addChild(_status_wo);
	activateChild(_status_wo);
	_status_wo->mapWindow();

	setTitlebar(STATE_UNSET);
	setFocused(true); // always draw as focused

	Workspaces::insert(this);
}

//! @brief StatusWindow destructor
StatusWindow::~StatusWindow(void)
{
	Workspaces::remove(this);

	// remove ourself from the decor manually, no need to reparent and stuff
	_children.erase(std::remove(_children.begin(), _children.end(),
				    _status_wo),
			_children.end());

	// free resources
	X11::destroyWindow(_status_wo->getWindow());
	delete _status_wo;

	unloadTheme();
}

//! @brief Resizes window to fit the text and renders text
//! @param text Text to draw in StatusWindow
//! @param do_center Center the StatusWindow on screen. Defaults to false.
void
StatusWindow::draw(const std::string &text, bool do_center, Geometry *gm)
{
	uint width, height;
	Theme::TextDialogData *sd = _theme->getStatusData();
	PFont *font = sd->getFont();

	width = font->getWidth(text) + 10;
	width = width - (width % 10);
	height = font->getHeight()
		+ sd->getPad(PAD_UP)
		+ sd->getPad(PAD_DOWN);

	if ((width != getChildWidth()) || (height != getChildHeight())) {
		resizeChild(width, height);
		render();
	}

	if (do_center) {
		Geometry head;
		if (! gm) {
			CurrHeadSelector chs =
				pekwm::config()->getCurrHeadSelector();
			X11::getHeadInfo(X11Util::getCurrHead(chs), head);
			gm = &head;
		}

		move(gm->x + (gm->width - _gm.width) / 2,
		     gm->y + (gm->height - _gm.height) / 2);
	}

	font->setColor(sd->getColor());
	X11::clearWindow(_status_wo->getWindow());
	font->draw(_status_wo,
		   (width - font->getWidth(text)) / 2,
		   sd->getPad(PAD_UP),
		   text.c_str());
}

//! @brief Renders and sets background
void
StatusWindow::loadTheme(void)
{
	render();
}

//! @brief Frees theme resources
void
StatusWindow::unloadTheme(void)
{
}

//! @brief Renders and sets background
void
StatusWindow::render(void)
{
	PTexture *tex = _theme->getStatusData()->getTexture();
	tex->setBackground(_status_wo->getWindow(),
			   0, 0,
			   _status_wo->getWidth(), _status_wo->getHeight());
	X11::clearWindow(_status_wo->getWindow());
}
