/** * @file llmultisldr.cpp * @brief LLMultiSlider base class * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * 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 * $/LicenseInfo$ */ #include "linden_common.h" #include "llmultislider.h" #include "llui.h" #include "llgl.h" #include "llwindow.h" #include "llfocusmgr.h" #include "llkeyboard.h" // for the MASK constants #include "llcontrol.h" #include "lluictrlfactory.h" #include <sstream> static LLDefaultChildRegistry::Register<LLMultiSlider> r("multi_slider_bar"); const F32 FLOAT_THRESHOLD = 0.00001f; S32 LLMultiSlider::mNameCounter = 0; LLMultiSlider::SliderParams::SliderParams() : name("name"), value("value", 0.f) { } LLMultiSlider::Params::Params() : max_sliders("max_sliders", 1), allow_overlap("allow_overlap", false), draw_track("draw_track", true), use_triangle("use_triangle", false), track_color("track_color"), thumb_disabled_color("thumb_disabled_color"), thumb_outline_color("thumb_outline_color"), thumb_center_color("thumb_center_color"), thumb_center_selected_color("thumb_center_selected_color"), triangle_color("triangle_color"), mouse_down_callback("mouse_down_callback"), mouse_up_callback("mouse_up_callback"), thumb_width("thumb_width"), sliders("slider") { name = "multi_slider_bar"; mouse_opaque(true); follows.flags(FOLLOWS_LEFT | FOLLOWS_TOP); } LLMultiSlider::LLMultiSlider(const LLMultiSlider::Params& p) : LLF32UICtrl(p), mMouseOffset( 0 ), mDragStartThumbRect( 0, getRect().getHeight(), p.thumb_width, 0 ), mMaxNumSliders(p.max_sliders), mAllowOverlap(p.allow_overlap), mDrawTrack(p.draw_track), mUseTriangle(p.use_triangle), mTrackColor(p.track_color()), mThumbOutlineColor(p.thumb_outline_color()), mThumbCenterColor(p.thumb_center_color()), mThumbCenterSelectedColor(p.thumb_center_selected_color()), mDisabledThumbColor(p.thumb_disabled_color()), mTriangleColor(p.triangle_color()), mThumbWidth(p.thumb_width), mMouseDownSignal(NULL), mMouseUpSignal(NULL) { mValue.emptyMap(); mCurSlider = LLStringUtil::null; if (p.mouse_down_callback.isProvided()) { setMouseDownCallback(initCommitCallback(p.mouse_down_callback)); } if (p.mouse_up_callback.isProvided()) { setMouseUpCallback(initCommitCallback(p.mouse_up_callback)); } for (LLInitParam::ParamIterator<SliderParams>::const_iterator it = p.sliders.begin(); it != p.sliders.end(); ++it) { if (it->name.isProvided()) { addSlider(it->value, it->name); } else { addSlider(it->value); } } } LLMultiSlider::~LLMultiSlider() { delete mMouseDownSignal; delete mMouseUpSignal; } void LLMultiSlider::setSliderValue(const std::string& name, F32 value, BOOL from_event) { // exit if not there if(!mValue.has(name)) { return; } value = llclamp( value, mMinValue, mMaxValue ); // Round to nearest increment (bias towards rounding down) value -= mMinValue; value += mIncrement/2.0001f; value -= fmod(value, mIncrement); F32 newValue = mMinValue + value; // now, make sure no overlap // if we want that if(!mAllowOverlap) { bool hit = false; // look at the current spot // and see if anything is there LLSD::map_iterator mIt = mValue.beginMap(); for(;mIt != mValue.endMap(); mIt++) { F32 testVal = (F32)mIt->second.asReal() - newValue; if(testVal > -FLOAT_THRESHOLD && testVal < FLOAT_THRESHOLD && mIt->first != name) { hit = true; break; } } // if none found, stop if(hit) { return; } } // now set it in the map mValue[name] = newValue; // set the control if it's the current slider and not from an event if (!from_event && name == mCurSlider) { setControlValue(mValue); } F32 t = (newValue - mMinValue) / (mMaxValue - mMinValue); S32 left_edge = mThumbWidth/2; S32 right_edge = getRect().getWidth() - (mThumbWidth/2); S32 x = left_edge + S32( t * (right_edge - left_edge) ); mThumbRects[name].mLeft = x - (mThumbWidth/2); mThumbRects[name].mRight = x + (mThumbWidth/2); } void LLMultiSlider::setValue(const LLSD& value) { // only do if it's a map if(value.isMap()) { // add each value... the first in the map becomes the current LLSD::map_const_iterator mIt = value.beginMap(); mCurSlider = mIt->first; for(; mIt != value.endMap(); mIt++) { setSliderValue(mIt->first, (F32)mIt->second.asReal(), TRUE); } } } F32 LLMultiSlider::getSliderValue(const std::string& name) const { return (F32)mValue[name].asReal(); } void LLMultiSlider::setCurSlider(const std::string& name) { if(mValue.has(name)) { mCurSlider = name; } } const std::string& LLMultiSlider::addSlider() { return addSlider(mInitialValue); } const std::string& LLMultiSlider::addSlider(F32 val) { std::stringstream newName; F32 initVal = val; if(mValue.size() >= mMaxNumSliders) { return LLStringUtil::null; } // create a new name newName << "sldr" << mNameCounter; mNameCounter++; bool foundOne = findUnusedValue(initVal); if(!foundOne) { return LLStringUtil::null; } // add a new thumb rect mThumbRects[newName.str()] = LLRect( 0, getRect().getHeight(), mThumbWidth, 0 ); // add the value and set the current slider to this one mValue.insert(newName.str(), initVal); mCurSlider = newName.str(); // move the slider setSliderValue(mCurSlider, initVal, TRUE); return mCurSlider; } void LLMultiSlider::addSlider(F32 val, const std::string& name) { F32 initVal = val; if(mValue.size() >= mMaxNumSliders) { return; } bool foundOne = findUnusedValue(initVal); if(!foundOne) { return; } // add a new thumb rect mThumbRects[name] = LLRect( 0, getRect().getHeight(), mThumbWidth, 0 ); // add the value and set the current slider to this one mValue.insert(name, initVal); mCurSlider = name; // move the slider setSliderValue(mCurSlider, initVal, TRUE); } bool LLMultiSlider::findUnusedValue(F32& initVal) { bool firstTry = true; // find the first open slot starting with // the initial value while(true) { bool hit = false; // look at the current spot // and see if anything is there LLSD::map_iterator mIt = mValue.beginMap(); for(;mIt != mValue.endMap(); mIt++) { F32 testVal = (F32)mIt->second.asReal() - initVal; if(testVal > -FLOAT_THRESHOLD && testVal < FLOAT_THRESHOLD) { hit = true; break; } } // if we found one if(!hit) { break; } // increment and wrap if need be initVal += mIncrement; if(initVal > mMaxValue) { initVal = mMinValue; } // stop if it's filled if(initVal == mInitialValue && !firstTry) { llwarns << "Whoa! Too many multi slider elements to add one to" << llendl; return false; } firstTry = false; continue; } return true; } void LLMultiSlider::deleteSlider(const std::string& name) { // can't delete last slider if(mValue.size() <= 0) { return; } // get rid of value from mValue and its thumb rect mValue.erase(name); mThumbRects.erase(name); // set to the last created if(mValue.size() > 0) { std::map<std::string, LLRect>::iterator mIt = mThumbRects.end(); mIt--; mCurSlider = mIt->first; } } void LLMultiSlider::clear() { while(mThumbRects.size() > 0) { deleteCurSlider(); } LLF32UICtrl::clear(); } BOOL LLMultiSlider::handleHover(S32 x, S32 y, MASK mask) { if( gFocusMgr.getMouseCapture() == this ) { S32 left_edge = mThumbWidth/2; S32 right_edge = getRect().getWidth() - (mThumbWidth/2); x += mMouseOffset; x = llclamp( x, left_edge, right_edge ); F32 t = F32(x - left_edge) / (right_edge - left_edge); setCurSliderValue(t * (mMaxValue - mMinValue) + mMinValue ); onCommit(); getWindow()->setCursor(UI_CURSOR_ARROW); lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (active)" << llendl; } else { getWindow()->setCursor(UI_CURSOR_ARROW); lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (inactive)" << llendl; } return TRUE; } BOOL LLMultiSlider::handleMouseUp(S32 x, S32 y, MASK mask) { BOOL handled = FALSE; if( gFocusMgr.getMouseCapture() == this ) { gFocusMgr.setMouseCapture( NULL ); if (mMouseUpSignal) (*mMouseUpSignal)( this, LLSD() ); handled = TRUE; make_ui_sound("UISndClickRelease"); } else { handled = TRUE; } return handled; } BOOL LLMultiSlider::handleMouseDown(S32 x, S32 y, MASK mask) { // only do sticky-focus on non-chrome widgets if (!getIsChrome()) { setFocus(TRUE); } if (mMouseDownSignal) (*mMouseDownSignal)( this, LLSD() ); if (MASK_CONTROL & mask) // if CTRL is modifying { setCurSliderValue(mInitialValue); onCommit(); } else { // scroll through thumbs to see if we have a new one selected and select that one std::map<std::string, LLRect>::iterator mIt = mThumbRects.begin(); for(; mIt != mThumbRects.end(); mIt++) { // check if inside. If so, set current slider and continue if(mIt->second.pointInRect(x,y)) { mCurSlider = mIt->first; break; } } // Find the offset of the actual mouse location from the center of the thumb. if (mThumbRects[mCurSlider].pointInRect(x,y)) { mMouseOffset = (mThumbRects[mCurSlider].mLeft + mThumbWidth/2) - x; } else { mMouseOffset = 0; } // Start dragging the thumb // No handler needed for focus lost since this class has no state that depends on it. gFocusMgr.setMouseCapture( this ); mDragStartThumbRect = mThumbRects[mCurSlider]; } make_ui_sound("UISndClick"); return TRUE; } BOOL LLMultiSlider::handleKeyHere(KEY key, MASK mask) { BOOL handled = FALSE; switch(key) { case KEY_UP: case KEY_DOWN: // eat up and down keys to be consistent handled = TRUE; break; case KEY_LEFT: setCurSliderValue(getCurSliderValue() - getIncrement()); onCommit(); handled = TRUE; break; case KEY_RIGHT: setCurSliderValue(getCurSliderValue() + getIncrement()); onCommit(); handled = TRUE; break; default: break; } return handled; } void LLMultiSlider::draw() { static LLUICachedControl<S32> extra_triangle_height ("UIExtraTriangleHeight", 0); static LLUICachedControl<S32> extra_triangle_width ("UIExtraTriangleWidth", 0); LLColor4 curThumbColor; std::map<std::string, LLRect>::iterator mIt; std::map<std::string, LLRect>::iterator curSldrIt; // Draw background and thumb. // drawing solids requires texturing be disabled gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); LLRect rect(mDragStartThumbRect); F32 opacity = getEnabled() ? 1.f : 0.3f; // Track LLUIImagePtr thumb_imagep = LLUI::getUIImage("Rounded_Square"); static LLUICachedControl<S32> multi_track_height ("UIMultiTrackHeight", 0); S32 height_offset = (getRect().getHeight() - multi_track_height) / 2; LLRect track_rect(0, getRect().getHeight() - height_offset, getRect().getWidth(), height_offset ); if(mDrawTrack) { track_rect.stretch(-1); thumb_imagep->draw(track_rect, mTrackColor.get() % opacity); } // if we're supposed to use a drawn triangle // simple gl call for the triangle if(mUseTriangle) { for(mIt = mThumbRects.begin(); mIt != mThumbRects.end(); mIt++) { gl_triangle_2d( mIt->second.mLeft - extra_triangle_width, mIt->second.mTop + extra_triangle_height, mIt->second.mRight + extra_triangle_width, mIt->second.mTop + extra_triangle_height, mIt->second.mLeft + mIt->second.getWidth() / 2, mIt->second.mBottom - extra_triangle_height, mTriangleColor.get(), TRUE); } } else if (!thumb_imagep) { // draw all the thumbs curSldrIt = mThumbRects.end(); for(mIt = mThumbRects.begin(); mIt != mThumbRects.end(); mIt++) { // choose the color curThumbColor = mThumbCenterColor.get(); if(mIt->first == mCurSlider) { curSldrIt = mIt; continue; //curThumbColor = mThumbCenterSelectedColor; } // the draw command gl_rect_2d(mIt->second, curThumbColor, TRUE); } // now draw the current slider if(curSldrIt != mThumbRects.end()) { gl_rect_2d(curSldrIt->second, mThumbCenterSelectedColor.get(), TRUE); } // and draw the drag start if (gFocusMgr.getMouseCapture() == this) { gl_rect_2d(mDragStartThumbRect, mThumbCenterColor.get() % opacity, FALSE); } } else if( gFocusMgr.getMouseCapture() == this ) { // draw drag start thumb_imagep->drawSolid(mDragStartThumbRect, mThumbCenterColor.get() % 0.3f); // draw the highlight if (hasFocus()) { thumb_imagep->drawBorder(mThumbRects[mCurSlider], gFocusMgr.getFocusColor(), gFocusMgr.getFocusFlashWidth()); } // draw the thumbs curSldrIt = mThumbRects.end(); for(mIt = mThumbRects.begin(); mIt != mThumbRects.end(); mIt++) { // choose the color curThumbColor = mThumbCenterColor.get(); if(mIt->first == mCurSlider) { // don't draw now, draw last curSldrIt = mIt; continue; } // the draw command thumb_imagep->drawSolid(mIt->second, curThumbColor); } // draw cur slider last if(curSldrIt != mThumbRects.end()) { thumb_imagep->drawSolid(curSldrIt->second, mThumbCenterSelectedColor.get()); } } else { // draw highlight if (hasFocus()) { thumb_imagep->drawBorder(mThumbRects[mCurSlider], gFocusMgr.getFocusColor(), gFocusMgr.getFocusFlashWidth()); } // draw thumbs curSldrIt = mThumbRects.end(); for(mIt = mThumbRects.begin(); mIt != mThumbRects.end(); mIt++) { // choose the color curThumbColor = mThumbCenterColor.get(); if(mIt->first == mCurSlider) { curSldrIt = mIt; continue; //curThumbColor = mThumbCenterSelectedColor; } thumb_imagep->drawSolid(mIt->second, curThumbColor % opacity); } if(curSldrIt != mThumbRects.end()) { thumb_imagep->drawSolid(curSldrIt->second, mThumbCenterSelectedColor.get() % opacity); } } LLF32UICtrl::draw(); } boost::signals2::connection LLMultiSlider::setMouseDownCallback( const commit_signal_t::slot_type& cb ) { if (!mMouseDownSignal) mMouseDownSignal = new commit_signal_t(); return mMouseDownSignal->connect(cb); } boost::signals2::connection LLMultiSlider::setMouseUpCallback( const commit_signal_t::slot_type& cb ) { if (!mMouseUpSignal) mMouseUpSignal = new commit_signal_t(); return mMouseUpSignal->connect(cb); }