/** * @file llsliderctrl.cpp * @brief LLSliderCtrl base class * * $LicenseInfo:firstyear=2002&license=viewergpl$ * * Copyright (c) 2002-2009, 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. * $/LicenseInfo$ */ #include "linden_common.h" #include "llsliderctrl.h" #include "llmath.h" #include "llfontgl.h" #include "llgl.h" #include "llkeyboard.h" #include "lllineeditor.h" #include "llslider.h" #include "llstring.h" #include "lltextbox.h" #include "llui.h" #include "lluiconstants.h" #include "llcontrol.h" #include "llfocusmgr.h" #include "llresmgr.h" #include "lluictrlfactory.h" const U32 MAX_STRING_LENGTH = 10; static LLDefaultChildRegistry::Register<LLSliderCtrl> r("slider"); LLSliderCtrl::LLSliderCtrl(const LLSliderCtrl::Params& p) : LLF32UICtrl(p), mLabelBox( NULL ), mEditor( NULL ), mTextBox( NULL ), mFont(p.font), mShowText(p.show_text), mCanEditText(p.can_edit_text), mPrecision(p.decimal_digits), mTextEnabledColor(p.text_color()), mTextDisabledColor(p.text_disabled_color()) { S32 top = getRect().getHeight(); S32 bottom = 0; S32 left = 0; S32 label_width = p.label_width; S32 text_width = p.text_width; // Label if( !p.label().empty() ) { if (!p.label_width.isProvided()) { label_width = p.font()->getWidth(p.label); } LLRect label_rect( left, top, label_width, bottom ); LLTextBox::Params params(p.slider_label); params.rect.setIfNotProvided(label_rect); params.font.setIfNotProvided(p.font); params.initial_value(p.label()); mLabelBox = LLUICtrlFactory::create<LLTextBox> (params); addChild(mLabelBox); } if (p.show_text && !p.text_width.isProvided()) { // calculate the size of the text box (log max_value is number of digits - 1 so plus 1) if ( p.max_value ) text_width = p.font()->getWidth(std::string("0")) * ( static_cast < S32 > ( log10 ( p.max_value ) ) + p.decimal_digits + 1 ); if ( p.increment < 1.0f ) text_width += p.font()->getWidth(std::string(".")); // (mostly) take account of decimal point in value if ( p.min_value < 0.0f || p.max_value < 0.0f ) text_width += p.font()->getWidth(std::string("-")); // (mostly) take account of minus sign // padding to make things look nicer text_width += 8; } S32 text_left = getRect().getWidth() - text_width; static LLUICachedControl<S32> sliderctrl_spacing ("UISliderctrlSpacing", 0); S32 slider_right = getRect().getWidth(); if( p.show_text ) { slider_right = text_left - sliderctrl_spacing; } S32 slider_left = label_width ? label_width + sliderctrl_spacing : 0; LLSlider::Params slider_p(p.slider_bar); slider_p.name("slider_bar"); slider_p.rect.setIfNotProvided(LLRect(slider_left,top,slider_right,bottom)); slider_p.initial_value.setIfNotProvided(p.initial_value().asReal()); slider_p.min_value.setIfNotProvided(p.min_value); slider_p.max_value.setIfNotProvided(p.max_value); slider_p.increment.setIfNotProvided(p.increment); slider_p.orientation.setIfNotProvided(p.orientation); slider_p.commit_callback.function(&LLSliderCtrl::onSliderCommit); slider_p.control_name(p.control_name); slider_p.mouse_down_callback( p.mouse_down_callback ); slider_p.mouse_up_callback( p.mouse_up_callback ); mSlider = LLUICtrlFactory::create<LLSlider> (slider_p); addChild( mSlider ); if( p.show_text() ) { LLRect text_rect( text_left, top, getRect().getWidth(), bottom ); if( p.can_edit_text() ) { LLLineEditor::Params line_p(p.value_editor); line_p.rect.setIfNotProvided(text_rect); line_p.font.setIfNotProvided(p.font); line_p.commit_callback.function(&LLSliderCtrl::onEditorCommit); line_p.prevalidate_callback(&LLLineEditor::prevalidateFloat); mEditor = LLUICtrlFactory::create<LLLineEditor>(line_p); mEditor->setFocusReceivedCallback( boost::bind(&LLSliderCtrl::onEditorGainFocus, _1, this )); // don't do this, as selecting the entire text is single clicking in some cases // and double clicking in others //mEditor->setSelectAllonFocusReceived(TRUE); addChild(mEditor); } else { LLTextBox::Params text_p(p.value_text); text_p.rect.setIfNotProvided(text_rect); text_p.font.setIfNotProvided(p.font); mTextBox = LLUICtrlFactory::create<LLTextBox>(text_p); addChild(mTextBox); } } updateText(); } // static void LLSliderCtrl::onEditorGainFocus( LLFocusableElement* caller, void *userdata ) { LLSliderCtrl* self = (LLSliderCtrl*) userdata; llassert( caller == self->mEditor ); self->onFocusReceived(); } void LLSliderCtrl::setValue(F32 v, BOOL from_event) { mSlider->setValue( v, from_event ); mValue = mSlider->getValueF32(); updateText(); } BOOL LLSliderCtrl::setLabelArg( const std::string& key, const LLStringExplicit& text ) { BOOL res = FALSE; if (mLabelBox) { res = mLabelBox->setTextArg(key, text); if (res && mLabelWidth == 0) { S32 label_width = mFont->getWidth(mLabelBox->getText()); LLRect rect = mLabelBox->getRect(); S32 prev_right = rect.mRight; rect.mRight = rect.mLeft + label_width; mLabelBox->setRect(rect); S32 delta = rect.mRight - prev_right; rect = mSlider->getRect(); S32 left = rect.mLeft + delta; static LLUICachedControl<S32> sliderctrl_spacing ("UISliderctrlSpacing", 0); left = llclamp(left, 0, rect.mRight - sliderctrl_spacing); rect.mLeft = left; mSlider->setRect(rect); } } return res; } void LLSliderCtrl::clear() { setValue(0.0f); if( mEditor ) { mEditor->setText( LLStringUtil::null ); } if( mTextBox ) { mTextBox->setText( LLStringUtil::null ); } } void LLSliderCtrl::updateText() { if( mEditor || mTextBox ) { LLLocale locale(LLLocale::USER_LOCALE); // Don't display very small negative values as -0.000 F32 displayed_value = (F32)(floor(getValueF32() * pow(10.0, (F64)mPrecision) + 0.5) / pow(10.0, (F64)mPrecision)); std::string format = llformat("%%.%df", mPrecision); std::string text = llformat(format.c_str(), displayed_value); if( mEditor ) { mEditor->setText( text ); } else { mTextBox->setText( text ); } } } // static void LLSliderCtrl::onEditorCommit( LLUICtrl* ctrl, const LLSD& userdata ) { LLSliderCtrl* self = dynamic_cast<LLSliderCtrl*>(ctrl->getParent()); if (!self) return; BOOL success = FALSE; F32 val = self->mValue; F32 saved_val = self->mValue; std::string text = self->mEditor->getText(); if( LLLineEditor::postvalidateFloat( text ) ) { LLLocale locale(LLLocale::USER_LOCALE); val = (F32) atof( text.c_str() ); if( self->mSlider->getMinValue() <= val && val <= self->mSlider->getMaxValue() ) { self->setValue( val ); // set the value temporarily so that the callback can retrieve it. if( !self->mValidateSignal || (*(self->mValidateSignal))( self, val ) ) { success = TRUE; } } } if( success ) { self->onCommit(); } else { if( self->getValueF32() != saved_val ) { self->setValue( saved_val ); } self->reportInvalidData(); } self->updateText(); } // static void LLSliderCtrl::onSliderCommit( LLUICtrl* ctrl, const LLSD& userdata ) { LLSliderCtrl* self = dynamic_cast<LLSliderCtrl*>(ctrl->getParent()); if (!self) return; BOOL success = FALSE; F32 saved_val = self->mValue; F32 new_val = self->mSlider->getValueF32(); self->mValue = new_val; // set the value temporarily so that the callback can retrieve it. if( !self->mValidateSignal || (*(self->mValidateSignal))( self, new_val ) ) { success = TRUE; } if( success ) { self->onCommit(); } else { if( self->mValue != saved_val ) { self->setValue( saved_val ); } self->reportInvalidData(); } self->updateText(); } void LLSliderCtrl::setEnabled(BOOL b) { LLView::setEnabled( b ); if( mLabelBox ) { mLabelBox->setColor( b ? mTextEnabledColor.get() : mTextDisabledColor.get() ); } mSlider->setEnabled( b ); if( mEditor ) { mEditor->setEnabled( b ); } if( mTextBox ) { mTextBox->setColor( b ? mTextEnabledColor.get() : mTextDisabledColor.get() ); } } void LLSliderCtrl::setTentative(BOOL b) { if( mEditor ) { mEditor->setTentative(b); } LLF32UICtrl::setTentative(b); } void LLSliderCtrl::onCommit() { setTentative(FALSE); if( mEditor ) { mEditor->setTentative(FALSE); } setControlValue(getValueF32()); LLF32UICtrl::onCommit(); } void LLSliderCtrl::setPrecision(S32 precision) { if (precision < 0 || precision > 10) { llerrs << "LLSliderCtrl::setPrecision - precision out of range" << llendl; return; } mPrecision = precision; updateText(); } boost::signals2::connection LLSliderCtrl::setSliderMouseDownCallback( const commit_signal_t::slot_type& cb ) { return mSlider->setMouseDownCallback( cb ); } boost::signals2::connection LLSliderCtrl::setSliderMouseUpCallback( const commit_signal_t::slot_type& cb ) { return mSlider->setMouseUpCallback( cb ); } void LLSliderCtrl::onTabInto() { if( mEditor ) { mEditor->onTabInto(); } } void LLSliderCtrl::reportInvalidData() { make_ui_sound("UISndBadKeystroke"); }