llmultislider.cpp
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- /**
- * @file llmultisldr.cpp
- * @brief LLMultiSlider base class
- *
- * $LicenseInfo:firstyear=2007&license=viewergpl$
- *
- * Copyright (c) 2007-2010, 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 "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);
- }