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/**
* @file llbutton.h
* @brief Header for buttons
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLBUTTON_H
#define LL_LLBUTTON_H
#include "lluuid.h"
#include "llbadgeowner.h"
#include "llcontrol.h"
#include "llflashtimer.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.
extern S32 LLBUTTON_H_PAD;
extern S32 BTN_HEIGHT_SMALL;
extern S32 BTN_HEIGHT;
extern S32 BTN_DROP_SHADOW;
//
// Helpful functions
//
S32 round_up(S32 grid, S32 value);
class LLUICtrlFactory;
//
// Classes
//
class LLButton
: public LLUICtrl, public LLBadgeOwner
, public ll::ui::SearchableControl
{
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;
Optional<bool> use_font_color;
// images
Optional<LLUIImage*> image_unselected,
image_selected,
image_hover_selected,
image_hover_unselected,
image_disabled_selected,
image_disabled,
image_flash,
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,
image_color,
image_color_disabled,
image_overlay_color,
image_overlay_selected_color,
image_overlay_disabled_color,
flash_color;
// layout
Optional<S32> pad_right;
Optional<S32> pad_left;
Optional<S32> pad_bottom; // under text label
//image overlay paddings
Optional<S32> image_top_pad;
Optional<S32> image_bottom_pad;
/**
* Space between image_overlay and label
*/
Optional<S32> imgoverlay_label_space;
// 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,
commit_on_capture_lost,
display_pressed_state;
Optional<F32> hover_glow_amount;
Optional<TimeIntervalParam> held_down_delay;
Optional<bool> use_draw_context_alpha;
Optional<LLBadge::Params> badge;
Optional<bool> handle_right_mouse;
Optional<bool> button_flash_enable;
Optional<S32> button_flash_count;
Optional<F32> button_flash_rate;
Params();
};
protected:
friend class LLUICtrlFactory;
LLButton(const Params&);
public:
~LLButton();
// 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 bool handleDoubleClick(S32 x, S32 y, MASK mask);
virtual void draw();
/*virtual*/ bool postBuild();
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; }
void setUseFontColor( bool use_font_color) { mUseFontColor = use_font_color; }
boost::signals2::connection setClickedCallback(const CommitCallbackParam& cb);
boost::signals2::connection setMouseDownCallback(const CommitCallbackParam& cb);
boost::signals2::connection setMouseUpCallback(const CommitCallbackParam& cb);
boost::signals2::connection setHeldDownCallback(const CommitCallbackParam& cb);
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 setHighlight(bool b);
void setFlashing( bool b, bool force_flashing = false );
bool getFlashing() const { return mFlashing; }
LLFlashTimer* getFlashTimer() {return mFlashingTimer;}
void setFlashColor(const LLUIColor &color) { mFlashBgColor = color; };
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; }
void setImageOverlayTopPad( S32 pad ) { mImageOverlayTopPad = pad; }
S32 getImageOverlayTopPad() const { return mImageOverlayTopPad; }
void setImageOverlayBottomPad( S32 pad ) { mImageOverlayBottomPad = pad; }
S32 getImageOverlayBottomPad() const { return mImageOverlayBottomPad; }
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);
void setImageOverlay(const LLUUID& image_id, LLFontGL::HAlign alignment = LLFontGL::HCENTER, const LLColor4& color = LLColor4::white);
LLPointer<LLUIImage> getImageOverlay() { return mImageOverlay; }
LLFontGL::HAlign getImageOverlayHAlign() const { return mImageOverlayAlignment; }
void autoResize(); // resize with label of current btn state
void resize(LLUIString label); // resize with label input
void setLabel(const std::string& label);
void setLabel(const LLUIString& label);
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()); }
const LLFontGL* getFont() const { return mGLFont; }
const std::string& getText() const { return getCurrentLabel().getString(); }
S32 getLastDrawCharsCount() const { return mLastDrawCharsCount; }
bool labelIsTruncated() const;
const LLUIString& getCurrentLabel() const;
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 setImageFlash(LLPointer<LLUIImage> image);
void setImagePressed(LLPointer<LLUIImage> image);
void setCommitOnReturn(bool commit) { mCommitOnReturn = commit; }
bool getCommitOnReturn() const { return mCommitOnReturn; }
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);
static void setDockableFloaterToggle(LLUICtrl* ctrl, const LLSD& sdname);
static void showHelp(LLUICtrl* ctrl, const LLSD& sdname);
void setForcePressedState(bool b) { mForcePressedState = b; }
void setAutoResize(bool auto_resize) { mAutoResize = auto_resize; }
protected:
LLPointer<LLUIImage> getImageUnselected() const { return mImageUnselected; }
LLPointer<LLUIImage> getImageSelected() const { return mImageSelected; }
void getOverlayImageSize(S32& overlay_width, S32& overlay_height);
LLFrameTimer mMouseDownTimer;
bool mNeedsHighlight;
S32 mButtonFlashCount;
F32 mButtonFlashRate;
void drawBorder(LLUIImage* imagep, const LLColor4& color, S32 size);
void resetMouseDownTimer();
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
S32 mLastDrawCharsCount;
LLPointer<LLUIImage> mImageOverlay;
LLFontGL::HAlign mImageOverlayAlignment;
LLUIColor mImageOverlayColor;
LLUIColor mImageOverlaySelectedColor;
LLUIColor mImageOverlayDisabledColor;
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;
/* There are two ways an image can flash- by making changes in color according to flash_color attribute
or by changing icon from current to the one specified in image_flash. Second way is used only if
flash icon name is set in attributes(by default it isn't). First way is used otherwise. */
LLPointer<LLUIImage> mImageFlash;
LLUIColor mFlashBgColor;
LLUIColor mImageColor;
LLUIColor mDisabledImageColor;
bool mIsToggle;
bool mScaleImage;
bool mDropShadowedText;
bool mAutoResize;
bool mUseEllipses;
bool mUseFontColor;
bool mBorderEnabled;
bool mFlashing;
LLFontGL::HAlign mHAlign;
S32 mLeftHPad;
S32 mRightHPad;
S32 mBottomVPad; // under text label
S32 mImageOverlayTopPad;
S32 mImageOverlayBottomPad;
bool mUseDrawContextAlpha;
/*
* Space between image_overlay and label
*/
S32 mImgOverlayLabelSpace;
F32 mHoverGlowStrength;
F32 mCurGlowStrength;
bool mCommitOnReturn;
bool mCommitOnCaptureLost;
bool mFadeWhenDisabled;
bool mForcePressedState;
bool mDisplayPressedState;
LLFrameTimer mFrameTimer;
LLFlashTimer * mFlashingTimer;
bool mForceFlashing; // Stick flashing color even if button is pressed
bool mHandleRightMouse;
protected:
virtual std::string _getSearchText() const
{
return getLabelUnselected() + getToolTip();
}
};
// Build time optimization, generate once in .cpp file
#ifndef LLBUTTON_CPP
extern template class LLButton* LLView::getChild<class LLButton>(
const std::string& name, bool recurse) const;
#endif
#endif // LL_LLBUTTON_H
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