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/**
* @file llbutton.h
* @brief Header for buttons
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, 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.
* $/LicenseInfo$
*/
#ifndef LL_LLBUTTON_H
#define LL_LLBUTTON_H
#include "lluuid.h"
#include "llcontrol.h"
#include "lluictrl.h"
#include "v4color.h"
#include "llframetimer.h"
#include "llfontgl.h"
#include "lluiimage.h"
#include "lluistring.h"
//
// Constants
//
// PLEASE please use these "constants" when building your own buttons.
// They are loaded from settings.xml at run time.
extern S32 LLBUTTON_H_PAD;
extern S32 LLBUTTON_V_PAD;
extern S32 BTN_HEIGHT_SMALL;
extern S32 BTN_HEIGHT;
//
// Helpful functions
//
S32 round_up(S32 grid, S32 value);
class LLUICtrlFactory;
//
// Classes
//
class LLButton
: public LLUICtrl
{
public:
struct Params
: public LLInitParam::Block<Params, LLUICtrl::Params>
{
// text label
Optional<std::string> label_selected;
Optional<bool> label_shadow;
Optional<bool> auto_resize;
Optional<bool> use_ellipses;
// images
Optional<LLUIImage*> image_unselected,
image_selected,
image_hover_selected,
image_hover_unselected,
image_disabled_selected,
image_disabled,
image_pressed,
image_pressed_selected,
image_overlay;
Optional<std::string> image_overlay_alignment;
// colors
Optional<LLUIColor> label_color,
label_color_selected,
label_color_disabled,
label_color_disabled_selected,
highlight_color,
image_color,
image_color_disabled,
image_overlay_color,
flash_color;
// layout
Optional<S32> pad_right;
Optional<S32> pad_left;
// callbacks
Optional<CommitCallbackParam> click_callback, // alias -> commit_callback
mouse_down_callback,
mouse_up_callback,
mouse_held_callback;
// misc
Optional<bool> is_toggle,
scale_image,
commit_on_return,
picture_style; //if true, don't display label
Optional<std::string> help_url;
Optional<F32> hover_glow_amount;
Optional<TimeIntervalParam> held_down_delay;
Params();
};
protected:
friend class LLUICtrlFactory;
LLButton(const Params&);
public:
// For backward compatability only
typedef boost::function<void(void*)> button_callback_t;
void addImageAttributeToXML(LLXMLNodePtr node, const std::string& imageName,
const LLUUID& imageID,const std::string& xmlTagName) const;
virtual BOOL handleUnicodeCharHere(llwchar uni_char);
virtual BOOL handleKeyHere(KEY key, MASK mask);
virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
virtual BOOL handleMouseUp(S32 x, S32 y, MASK mask);
virtual BOOL handleHover(S32 x, S32 y, MASK mask);
virtual BOOL handleRightMouseDown(S32 x, S32 y, MASK mask);
virtual BOOL handleRightMouseUp(S32 x, S32 y, MASK mask);
virtual void draw();
/*virtual*/ BOOL postBuild();
virtual void onMouseEnter(S32 x, S32 y, MASK mask);
virtual void onMouseLeave(S32 x, S32 y, MASK mask);
virtual void onMouseCaptureLost();
virtual void onCommit();
void setUnselectedLabelColor( const LLColor4& c ) { mUnselectedLabelColor = c; }
void setSelectedLabelColor( const LLColor4& c ) { mSelectedLabelColor = c; }
void setUseEllipses( BOOL use_ellipses ) { mUseEllipses = use_ellipses; }
boost::signals2::connection setClickedCallback( const commit_signal_t::slot_type& cb ); // mouse down and up within button
boost::signals2::connection setMouseDownCallback( const commit_signal_t::slot_type& cb );
boost::signals2::connection setMouseUpCallback( const commit_signal_t::slot_type& cb ); // mouse up, EVEN IF NOT IN BUTTON
// Passes a 'count' parameter in the commit param payload, i.e. param["count"])
boost::signals2::connection setHeldDownCallback( const commit_signal_t::slot_type& cb ); // Mouse button held down and in button
// *TODO: Deprecate (for backwards compatability only)
boost::signals2::connection setClickedCallback( button_callback_t cb, void* data );
boost::signals2::connection setMouseDownCallback( button_callback_t cb, void* data );
boost::signals2::connection setMouseUpCallback( button_callback_t cb, void* data );
boost::signals2::connection setHeldDownCallback( button_callback_t cb, void* data );
void setHeldDownDelay( F32 seconds, S32 frames = 0) { mHeldDownDelay = seconds; mHeldDownFrameDelay = frames; }
F32 getHeldDownTime() const { return mMouseDownTimer.getElapsedTimeF32(); }
BOOL toggleState();
BOOL getToggleState() const;
void setToggleState(BOOL b);
void setFlashing( BOOL b );
BOOL getFlashing() const { return mFlashing; }
void setHAlign( LLFontGL::HAlign align ) { mHAlign = align; }
LLFontGL::HAlign getHAlign() const { return mHAlign; }
void setLeftHPad( S32 pad ) { mLeftHPad = pad; }
void setRightHPad( S32 pad ) { mRightHPad = pad; }
const std::string getLabelUnselected() const { return wstring_to_utf8str(mUnselectedLabel); }
const std::string getLabelSelected() const { return wstring_to_utf8str(mSelectedLabel); }
void setImageColor(const std::string& color_control);
void setImageColor(const LLColor4& c);
/*virtual*/ void setColor(const LLColor4& c);
void setImages(const std::string &image_name, const std::string &selected_name);
void setDisabledImageColor(const LLColor4& c) { mDisabledImageColor = c; }
void setDisabledSelectedLabelColor( const LLColor4& c ) { mDisabledSelectedLabelColor = c; }
void setImageOverlay(const std::string& image_name, LLFontGL::HAlign alignment = LLFontGL::HCENTER, const LLColor4& color = LLColor4::white);
LLPointer<LLUIImage> getImageOverlay() { return mImageOverlay; }
void autoResize(); // resize with label of current btn state
void resize(LLUIString label); // resize with label input
void setLabel( const LLStringExplicit& label);
virtual BOOL setLabelArg( const std::string& key, const LLStringExplicit& text );
void setLabelUnselected(const LLStringExplicit& label);
void setLabelSelected(const LLStringExplicit& label);
void setDisabledLabelColor( const LLColor4& c ) { mDisabledLabelColor = c; }
void setFont(const LLFontGL *font)
{ mGLFont = ( font ? font : LLFontGL::getFontSansSerif()); }
void setScaleImage(BOOL scale) { mScaleImage = scale; }
BOOL getScaleImage() const { return mScaleImage; }
void setDropShadowedText(BOOL b) { mDropShadowedText = b; }
void setBorderEnabled(BOOL b) { mBorderEnabled = b; }
void setHoverGlowStrength(F32 strength) { mHoverGlowStrength = strength; }
void setImageUnselected(LLPointer<LLUIImage> image);
void setImageSelected(LLPointer<LLUIImage> image);
void setImageHoverSelected(LLPointer<LLUIImage> image);
void setImageHoverUnselected(LLPointer<LLUIImage> image);
void setImageDisabled(LLPointer<LLUIImage> image);
void setImageDisabledSelected(LLPointer<LLUIImage> image);
void setCommitOnReturn(BOOL commit) { mCommitOnReturn = commit; }
BOOL getCommitOnReturn() const { return mCommitOnReturn; }
void setHelpURLCallback(const std::string &help_url);
const std::string& getHelpURL() const { return mHelpURL; }
static void onHeldDown(void *userdata); // to be called by gIdleCallbacks
static void toggleFloaterAndSetToggleState(LLUICtrl* ctrl, const LLSD& sdname);
static void setFloaterToggle(LLUICtrl* ctrl, const LLSD& sdname);
protected:
const LLPointer<LLUIImage>& getImageUnselected() const { return mImageUnselected; }
const LLPointer<LLUIImage>& getImageSelected() const { return mImageSelected; }
LLFrameTimer mMouseDownTimer;
// If the label is empty, set the picture_style attribute
static void setupParamsForExport(Params& p, LLView* parent);
private:
void drawBorder(LLUIImage* imagep, const LLColor4& color, S32 size);
void resetMouseDownTimer();
private:
commit_signal_t mMouseDownSignal;
commit_signal_t mMouseUpSignal;
commit_signal_t mHeldDownSignal;
const LLFontGL* mGLFont;
S32 mMouseDownFrame;
S32 mMouseHeldDownCount; // Counter for parameter passed to held-down callback
F32 mHeldDownDelay; // seconds, after which held-down callbacks get called
S32 mHeldDownFrameDelay; // frames, after which held-down callbacks get called
LLPointer<LLUIImage> mImageOverlay;
LLFontGL::HAlign mImageOverlayAlignment;
LLUIColor mImageOverlayColor;
LLPointer<LLUIImage> mImageUnselected;
LLUIString mUnselectedLabel;
LLUIColor mUnselectedLabelColor;
LLPointer<LLUIImage> mImageSelected;
LLUIString mSelectedLabel;
LLUIColor mSelectedLabelColor;
LLPointer<LLUIImage> mImageHoverSelected;
LLPointer<LLUIImage> mImageHoverUnselected;
LLPointer<LLUIImage> mImageDisabled;
LLUIColor mDisabledLabelColor;
LLPointer<LLUIImage> mImageDisabledSelected;
LLUIString mDisabledSelectedLabel;
LLUIColor mDisabledSelectedLabelColor;
LLPointer<LLUIImage> mImagePressed;
LLPointer<LLUIImage> mImagePressedSelected;
LLUIColor mHighlightColor;
LLUIColor mFlashBgColor;
LLUIColor mImageColor;
LLUIColor mDisabledImageColor;
BOOL mIsToggle;
BOOL mScaleImage;
BOOL mDropShadowedText;
BOOL mAutoResize;
BOOL mUseEllipses;
BOOL mBorderEnabled;
BOOL mFlashing;
LLFontGL::HAlign mHAlign;
S32 mLeftHPad;
S32 mRightHPad;
F32 mHoverGlowStrength;
F32 mCurGlowStrength;
BOOL mNeedsHighlight;
BOOL mCommitOnReturn;
BOOL mFadeWhenDisabled;
std::string mHelpURL;
LLFrameTimer mFlashingTimer;
};
#endif // LL_LLBUTTON_H
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