llmenubutton.cpp
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上传日期:2021-03-01
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- /**
- * @file llbutton.cpp
- * @brief LLButton base class
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "llmenubutton.h"
- // Linden library includes
- #include "llmenugl.h"
- #include "llstring.h"
- #include "v4color.h"
- static LLDefaultChildRegistry::Register<LLMenuButton> r("menu_button");
- LLMenuButton::Params::Params()
- : menu_filename("menu_filename")
- {
- }
- LLMenuButton::LLMenuButton(const LLMenuButton::Params& p)
- : LLButton(p),
- mMenu(NULL),
- mMenuVisibleLastFrame(false)
- {
- std::string menu_filename = p.menu_filename;
- if (!menu_filename.empty())
- {
- mMenu = LLUICtrlFactory::getInstance()->createFromFile<LLMenuGL>(menu_filename, LLMenuGL::sMenuContainer, LLMenuHolderGL::child_registry_t::instance());
- if (!mMenu)
- {
- llwarns << "Error loading menu_button menu" << llendl;
- }
- }
- }
- void LLMenuButton::toggleMenu()
- {
- if(!mMenu)
- return;
- if (mMenu->getVisible() || mMenuVisibleLastFrame)
- {
- mMenu->setVisible(FALSE);
- }
- else
- {
- LLRect rect = getRect();
- //mMenu->needsArrange(); //so it recalculates the visible elements
- LLMenuGL::showPopup(getParent(), mMenu, rect.mLeft, rect.mBottom);
- }
- }
- void LLMenuButton::hideMenu()
- {
- if(!mMenu)
- return;
- mMenu->setVisible(FALSE);
- }
- BOOL LLMenuButton::handleKeyHere(KEY key, MASK mask )
- {
- if( KEY_RETURN == key && mask == MASK_NONE && !gKeyboard->getKeyRepeated(key))
- {
- toggleMenu();
- return TRUE;
- }
- if (mMenu && mMenu->getVisible() && key == KEY_ESCAPE && mask == MASK_NONE)
- {
- mMenu->setVisible(FALSE);
- return TRUE;
- }
-
- return FALSE;
- }
- BOOL LLMenuButton::handleMouseDown(S32 x, S32 y, MASK mask)
- {
- if (hasTabStop() && !getIsChrome())
- {
- setFocus(TRUE);
- }
- toggleMenu();
-
- if (getSoundFlags() & MOUSE_DOWN)
- {
- make_ui_sound("UISndClick");
- }
- return TRUE;
- }
- void LLMenuButton::draw()
- {
- //we save this off so next frame when we try to close it by
- //button click, and it hides menus before we get to it, we know
- mMenuVisibleLastFrame = mMenu && mMenu->getVisible();
-
- if (mMenuVisibleLastFrame)
- {
- setForcePressedState(true);
- }
- LLButton::draw();
- setForcePressedState(false);
- }