124 lines
3.7 KiB
C++
124 lines
3.7 KiB
C++
/**
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* @file piemenu.h
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* @brief Pie menu class
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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* Copyright (C) 2011, Zi Ree @ Second Life
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef PIEMENU_H
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#define PIEMENU_H
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#include "llmenugl.h"
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#include "llframetimer.h"
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#include "pieautohide.h"
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constexpr S32 PIE_MAX_SLICES = 8;
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// PieChildRegistry contains a list of allowed child types for the XUI definition
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struct PieChildRegistry : public LLChildRegistry<PieChildRegistry>
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{
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LLSINGLETON_EMPTY_CTOR(PieChildRegistry);
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};
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class PieMenu : public LLMenuGL, public PieAutohide
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{
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public:
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// parameter block for the XUI factory
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struct Params : public LLInitParam::Block<Params, LLMenuGL::Params>
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{
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Optional<std::string> name;
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// autohide feature to hide a disabled pie slice
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Optional<bool> start_autohide;
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// next item in an autohide chain
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Optional<bool> autohide;
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Params() :
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start_autohide("start_autohide", false),
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autohide("autohide", false)
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{
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visible = false;
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}
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};
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// PieChildRegistry contains a list of allowed child types for the XUI definition
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typedef PieChildRegistry child_registry_t;
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PieMenu(const Params& p);
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/*virtual*/ void setVisible(bool visible);
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// adding and removing "child" slices to the pie
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/*virtual*/ bool addChild(LLView* child, S32 tab_group = 0);
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/*virtual*/ void removeChild(LLView* child);
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/*virtual*/ bool handleHover(S32 x, S32 y, MASK mask);
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/*virtual*/ bool handleMouseUp(S32 x, S32 y, MASK mask);
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/*virtual*/ bool handleRightMouseUp(S32 x, S32 y, MASK mask);
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// does all the hard work of bringing the menu on the screen
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void draw();
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// showing/hiding the menu
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void show(S32 x, S32 y, LLView* spawning_view = NULL);
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void hide();
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// our item list type definition
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typedef std::vector<LLView*> slice_list_t;
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// the actual item list
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slice_list_t mMySlices;
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// pointer to the currently used list
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slice_list_t* mSlices;
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// appends a sub pie menu to the current pie
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bool appendContextSubMenu(PieMenu* menu);
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// we never rearrange our menu
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void needsArrange() {};
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// arranging does nothing
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virtual void arrange( void ) {};
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// arranging does nothing
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void arrangeAndClear( void ) {};
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protected:
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// general mouse button handling
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bool handleMouseButtonUp(S32 x, S32 y, MASK mask);
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// font used for the menu
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const LLFontGL* mFont;
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// currently highlighted item, must be tested if it's a slice or submenu
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LLView* mSlice;
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// used to play UI sounds only once on hover slice change, do not dereference!
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LLView* mOldSlice;
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// timer for visual popup effect
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LLFrameTimer mPopupTimer;
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// this is true when the first mouseclick came to display the menu, used for borderless menu
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bool mFirstClick;
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F32 getScaleFactor();
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S32 mCurrentSegment;
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};
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#endif // PIEMENU_H
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