diff options
Diffstat (limited to 'indra/llui/llslider.cpp')
-rw-r--r-- | indra/llui/llslider.cpp | 766 |
1 files changed, 383 insertions, 383 deletions
diff --git a/indra/llui/llslider.cpp b/indra/llui/llslider.cpp index c1c761c8fa..f892816116 100644 --- a/indra/llui/llslider.cpp +++ b/indra/llui/llslider.cpp @@ -1,383 +1,383 @@ -/** - * @file llslider.cpp - * @brief LLSlider base class - * - * $LicenseInfo:firstyear=2002&license=viewerlgpl$ - * 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 "llslider.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" - -static LLDefaultChildRegistry::Register<LLSlider> r1("slider_bar"); -//FIXME: make this into an unregistered template so that code constructed sliders don't -// have ambigious template lookup problem - -LLSlider::Params::Params() -: orientation ("orientation", std::string ("horizontal")), - thumb_outline_color("thumb_outline_color"), - thumb_center_color("thumb_center_color"), - thumb_image("thumb_image"), - thumb_image_pressed("thumb_image_pressed"), - thumb_image_disabled("thumb_image_disabled"), - track_image_horizontal("track_image_horizontal"), - track_image_vertical("track_image_vertical"), - track_highlight_horizontal_image("track_highlight_horizontal_image"), - track_highlight_vertical_image("track_highlight_vertical_image"), - mouse_down_callback("mouse_down_callback"), - mouse_up_callback("mouse_up_callback") -{} - -LLSlider::LLSlider(const LLSlider::Params& p) -: LLF32UICtrl(p), - mMouseOffset( 0 ), - mOrientation ((p.orientation() == "horizontal") ? HORIZONTAL : VERTICAL), - mThumbOutlineColor(p.thumb_outline_color()), - mThumbCenterColor(p.thumb_center_color()), - mThumbImage(p.thumb_image), - mThumbImagePressed(p.thumb_image_pressed), - mThumbImageDisabled(p.thumb_image_disabled), - mTrackImageHorizontal(p.track_image_horizontal), - mTrackImageVertical(p.track_image_vertical), - mTrackHighlightHorizontalImage(p.track_highlight_horizontal_image), - mTrackHighlightVerticalImage(p.track_highlight_vertical_image), - mMouseDownSignal(NULL), - mMouseUpSignal(NULL) -{ - mViewModel->setValue(p.initial_value); - updateThumbRect(); - mDragStartThumbRect = mThumbRect; - setControlName(p.control_name, NULL); - setValue(getValueF32()); - - if (p.mouse_down_callback.isProvided()) - { - setMouseDownCallback(initCommitCallback(p.mouse_down_callback)); - } - if (p.mouse_up_callback.isProvided()) - { - setMouseUpCallback(initCommitCallback(p.mouse_up_callback)); - } -} - -LLSlider::~LLSlider() -{ - delete mMouseDownSignal; - delete mMouseUpSignal; -} - -void LLSlider::setValue(F32 value, bool from_event) -{ - value = llclamp( value, mMinValue, mMaxValue ); - - // Round to nearest increment (bias towards rounding down) - value -= mMinValue; - value += mIncrement/2.0001f; - value -= fmod(value, mIncrement); - value += mMinValue; - - if (!from_event && getValueF32() != value) - { - setControlValue(value); - } - - LLF32UICtrl::setValue(value); - updateThumbRect(); -} - -void LLSlider::updateThumbRect() -{ - const S32 DEFAULT_THUMB_SIZE = 16; - F32 t = (getValueF32() - mMinValue) / (mMaxValue - mMinValue); - - S32 thumb_width = mThumbImage ? mThumbImage->getWidth() : DEFAULT_THUMB_SIZE; - S32 thumb_height = mThumbImage ? mThumbImage->getHeight() : DEFAULT_THUMB_SIZE; - - if ( mOrientation == HORIZONTAL ) - { - S32 left_edge = (thumb_width / 2); - S32 right_edge = getRect().getWidth() - (thumb_width / 2); - - S32 x = left_edge + S32( t * (right_edge - left_edge) ); - mThumbRect.mLeft = x - (thumb_width / 2); - mThumbRect.mRight = mThumbRect.mLeft + thumb_width; - mThumbRect.mBottom = getLocalRect().getCenterY() - (thumb_height / 2); - mThumbRect.mTop = mThumbRect.mBottom + thumb_height; - } - else - { - S32 top_edge = (thumb_height / 2); - S32 bottom_edge = getRect().getHeight() - (thumb_height / 2); - - S32 y = top_edge + S32( t * (bottom_edge - top_edge) ); - mThumbRect.mLeft = getLocalRect().getCenterX() - (thumb_width / 2); - mThumbRect.mRight = mThumbRect.mLeft + thumb_width; - mThumbRect.mBottom = y - (thumb_height / 2); - mThumbRect.mTop = mThumbRect.mBottom + thumb_height; - } -} - - -void LLSlider::setValueAndCommit(F32 value) -{ - F32 old_value = getValueF32(); - setValue(value); - - if (getValueF32() != old_value) - { - onCommit(); - } -} - - -bool LLSlider::handleHover(S32 x, S32 y, MASK mask) -{ - if( hasMouseCapture() ) - { - if ( mOrientation == HORIZONTAL ) - { - S32 thumb_half_width = mThumbImage->getWidth()/2; - S32 left_edge = thumb_half_width; - S32 right_edge = getRect().getWidth() - (thumb_half_width); - - x += mMouseOffset; - x = llclamp( x, left_edge, right_edge ); - - F32 t = F32(x - left_edge) / (right_edge - left_edge); - setValueAndCommit(t * (mMaxValue - mMinValue) + mMinValue ); - } - else // mOrientation == VERTICAL - { - S32 thumb_half_height = mThumbImage->getHeight()/2; - S32 top_edge = thumb_half_height; - S32 bottom_edge = getRect().getHeight() - (thumb_half_height); - - y += mMouseOffset; - y = llclamp(y, top_edge, bottom_edge); - - F32 t = F32(y - top_edge) / (bottom_edge - top_edge); - setValueAndCommit(t * (mMaxValue - mMinValue) + mMinValue ); - } - getWindow()->setCursor(UI_CURSOR_ARROW); - LL_DEBUGS("UserInput") << "hover handled by " << getName() << " (active)" << LL_ENDL; - } - else - { - getWindow()->setCursor(UI_CURSOR_ARROW); - LL_DEBUGS("UserInput") << "hover handled by " << getName() << " (inactive)" << LL_ENDL; - } - return true; -} - -bool LLSlider::handleMouseUp(S32 x, S32 y, MASK mask) -{ - bool handled = false; - - if( hasMouseCapture() ) - { - gFocusMgr.setMouseCapture( NULL ); - - if (mMouseUpSignal) - (*mMouseUpSignal)( this, getValueF32() ); - - handled = true; - make_ui_sound("UISndClickRelease"); - } - else - { - handled = true; - } - - return handled; -} - -bool LLSlider::handleMouseDown(S32 x, S32 y, MASK mask) -{ - // only do sticky-focus on non-chrome widgets - if (!getIsChrome()) - { - setFocus(true); - } - if (mMouseDownSignal) - (*mMouseDownSignal)( this, getValueF32() ); - - if (MASK_CONTROL & mask) // if CTRL is modifying - { - setValueAndCommit(mInitialValue); - } - else - { - // Find the offset of the actual mouse location from the center of the thumb. - if (mThumbRect.pointInRect(x,y)) - { - mMouseOffset = (mOrientation == HORIZONTAL) - ? (mThumbRect.mLeft + mThumbImage->getWidth()/2) - x - : (mThumbRect.mBottom + mThumbImage->getHeight()/2) - y; - } - 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 = mThumbRect; - } - make_ui_sound("UISndClick"); - - return true; -} - -bool LLSlider::handleKeyHere(KEY key, MASK mask) -{ - bool handled = false; - switch(key) - { - case KEY_DOWN: - case KEY_LEFT: - setValueAndCommit(getValueF32() - getIncrement()); - handled = true; - break; - case KEY_UP: - case KEY_RIGHT: - setValueAndCommit(getValueF32() + getIncrement()); - handled = true; - break; - default: - break; - } - return handled; -} - -bool LLSlider::handleScrollWheel(S32 x, S32 y, S32 clicks) -{ - if ( mOrientation == VERTICAL ) - { - F32 new_val = getValueF32() - clicks * getIncrement(); - setValueAndCommit(new_val); - return true; - } - return LLF32UICtrl::handleScrollWheel(x,y,clicks); -} - -void LLSlider::draw() -{ - F32 alpha = getDrawContext().mAlpha; - - // since thumb image might still be decoding, need thumb to accomodate image size - updateThumbRect(); - - // Draw background and thumb. - - // drawing solids requires texturing be disabled - gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); - - // Track - LLPointer<LLUIImage>& trackImage = ( mOrientation == HORIZONTAL ) - ? mTrackImageHorizontal - : mTrackImageVertical; - - LLPointer<LLUIImage>& trackHighlightImage = ( mOrientation == HORIZONTAL ) - ? mTrackHighlightHorizontalImage - : mTrackHighlightVerticalImage; - - LLRect track_rect; - LLRect highlight_rect; - - if ( mOrientation == HORIZONTAL ) - { - track_rect.set(mThumbImage->getWidth() / 2, - getLocalRect().getCenterY() + (trackImage->getHeight() / 2), - getRect().getWidth() - mThumbImage->getWidth() / 2, - getLocalRect().getCenterY() - (trackImage->getHeight() / 2) ); - highlight_rect.set(track_rect.mLeft, track_rect.mTop, mThumbRect.getCenterX(), track_rect.mBottom); - } - else - { - track_rect.set(getLocalRect().getCenterX() - (trackImage->getWidth() / 2), - getRect().getHeight(), - getLocalRect().getCenterX() + (trackImage->getWidth() / 2), - 0); - highlight_rect.set(track_rect.mLeft, track_rect.mTop, track_rect.mRight, track_rect.mBottom); - } - - LLColor4 color = isInEnabledChain() ? LLColor4::white % alpha : LLColor4::white % (0.6f * alpha); - trackImage->draw(track_rect, color); - trackHighlightImage->draw(highlight_rect, color); - - // Thumb - if (hasFocus()) - { - // Draw focus highlighting. - mThumbImage->drawBorder(mThumbRect, gFocusMgr.getFocusColor() % alpha, gFocusMgr.getFocusFlashWidth()); - } - - if( hasMouseCapture() ) // currently clicking on slider - { - // Show ghost where thumb was before dragging began. - if (mThumbImage.notNull()) - { - mThumbImage->draw(mDragStartThumbRect, mThumbCenterColor.get() % (0.3f * alpha)); - } - if (mThumbImagePressed.notNull()) - { - mThumbImagePressed->draw(mThumbRect, mThumbOutlineColor % alpha); - } - } - else if (!isInEnabledChain()) - { - if (mThumbImageDisabled.notNull()) - { - mThumbImageDisabled->draw(mThumbRect, mThumbCenterColor % alpha); - } - } - else - { - if (mThumbImage.notNull()) - { - mThumbImage->draw(mThumbRect, mThumbCenterColor % alpha); - } - } - - LLUICtrl::draw(); -} - -boost::signals2::connection LLSlider::setMouseDownCallback( const commit_signal_t::slot_type& cb ) -{ - if (!mMouseDownSignal) mMouseDownSignal = new commit_signal_t(); - return mMouseDownSignal->connect(cb); -} - -boost::signals2::connection LLSlider::setMouseUpCallback( const commit_signal_t::slot_type& cb ) -{ - if (!mMouseUpSignal) mMouseUpSignal = new commit_signal_t(); - return mMouseUpSignal->connect(cb); -} +/**
+ * @file llslider.cpp
+ * @brief LLSlider base class
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * 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 "llslider.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"
+
+static LLDefaultChildRegistry::Register<LLSlider> r1("slider_bar");
+//FIXME: make this into an unregistered template so that code constructed sliders don't
+// have ambigious template lookup problem
+
+LLSlider::Params::Params()
+: orientation ("orientation", std::string ("horizontal")),
+ thumb_outline_color("thumb_outline_color"),
+ thumb_center_color("thumb_center_color"),
+ thumb_image("thumb_image"),
+ thumb_image_pressed("thumb_image_pressed"),
+ thumb_image_disabled("thumb_image_disabled"),
+ track_image_horizontal("track_image_horizontal"),
+ track_image_vertical("track_image_vertical"),
+ track_highlight_horizontal_image("track_highlight_horizontal_image"),
+ track_highlight_vertical_image("track_highlight_vertical_image"),
+ mouse_down_callback("mouse_down_callback"),
+ mouse_up_callback("mouse_up_callback")
+{}
+
+LLSlider::LLSlider(const LLSlider::Params& p)
+: LLF32UICtrl(p),
+ mMouseOffset( 0 ),
+ mOrientation ((p.orientation() == "horizontal") ? HORIZONTAL : VERTICAL),
+ mThumbOutlineColor(p.thumb_outline_color()),
+ mThumbCenterColor(p.thumb_center_color()),
+ mThumbImage(p.thumb_image),
+ mThumbImagePressed(p.thumb_image_pressed),
+ mThumbImageDisabled(p.thumb_image_disabled),
+ mTrackImageHorizontal(p.track_image_horizontal),
+ mTrackImageVertical(p.track_image_vertical),
+ mTrackHighlightHorizontalImage(p.track_highlight_horizontal_image),
+ mTrackHighlightVerticalImage(p.track_highlight_vertical_image),
+ mMouseDownSignal(NULL),
+ mMouseUpSignal(NULL)
+{
+ mViewModel->setValue(p.initial_value);
+ updateThumbRect();
+ mDragStartThumbRect = mThumbRect;
+ setControlName(p.control_name, NULL);
+ setValue(getValueF32());
+
+ if (p.mouse_down_callback.isProvided())
+ {
+ setMouseDownCallback(initCommitCallback(p.mouse_down_callback));
+ }
+ if (p.mouse_up_callback.isProvided())
+ {
+ setMouseUpCallback(initCommitCallback(p.mouse_up_callback));
+ }
+}
+
+LLSlider::~LLSlider()
+{
+ delete mMouseDownSignal;
+ delete mMouseUpSignal;
+}
+
+void LLSlider::setValue(F32 value, bool from_event)
+{
+ value = llclamp( value, mMinValue, mMaxValue );
+
+ // Round to nearest increment (bias towards rounding down)
+ value -= mMinValue;
+ value += mIncrement/2.0001f;
+ value -= fmod(value, mIncrement);
+ value += mMinValue;
+
+ if (!from_event && getValueF32() != value)
+ {
+ setControlValue(value);
+ }
+
+ LLF32UICtrl::setValue(value);
+ updateThumbRect();
+}
+
+void LLSlider::updateThumbRect()
+{
+ const S32 DEFAULT_THUMB_SIZE = 16;
+ F32 t = (getValueF32() - mMinValue) / (mMaxValue - mMinValue);
+
+ S32 thumb_width = mThumbImage ? mThumbImage->getWidth() : DEFAULT_THUMB_SIZE;
+ S32 thumb_height = mThumbImage ? mThumbImage->getHeight() : DEFAULT_THUMB_SIZE;
+
+ if ( mOrientation == HORIZONTAL )
+ {
+ S32 left_edge = (thumb_width / 2);
+ S32 right_edge = getRect().getWidth() - (thumb_width / 2);
+
+ S32 x = left_edge + S32( t * (right_edge - left_edge) );
+ mThumbRect.mLeft = x - (thumb_width / 2);
+ mThumbRect.mRight = mThumbRect.mLeft + thumb_width;
+ mThumbRect.mBottom = getLocalRect().getCenterY() - (thumb_height / 2);
+ mThumbRect.mTop = mThumbRect.mBottom + thumb_height;
+ }
+ else
+ {
+ S32 top_edge = (thumb_height / 2);
+ S32 bottom_edge = getRect().getHeight() - (thumb_height / 2);
+
+ S32 y = top_edge + S32( t * (bottom_edge - top_edge) );
+ mThumbRect.mLeft = getLocalRect().getCenterX() - (thumb_width / 2);
+ mThumbRect.mRight = mThumbRect.mLeft + thumb_width;
+ mThumbRect.mBottom = y - (thumb_height / 2);
+ mThumbRect.mTop = mThumbRect.mBottom + thumb_height;
+ }
+}
+
+
+void LLSlider::setValueAndCommit(F32 value)
+{
+ F32 old_value = getValueF32();
+ setValue(value);
+
+ if (getValueF32() != old_value)
+ {
+ onCommit();
+ }
+}
+
+
+bool LLSlider::handleHover(S32 x, S32 y, MASK mask)
+{
+ if( hasMouseCapture() )
+ {
+ if ( mOrientation == HORIZONTAL )
+ {
+ S32 thumb_half_width = mThumbImage->getWidth()/2;
+ S32 left_edge = thumb_half_width;
+ S32 right_edge = getRect().getWidth() - (thumb_half_width);
+
+ x += mMouseOffset;
+ x = llclamp( x, left_edge, right_edge );
+
+ F32 t = F32(x - left_edge) / (right_edge - left_edge);
+ setValueAndCommit(t * (mMaxValue - mMinValue) + mMinValue );
+ }
+ else // mOrientation == VERTICAL
+ {
+ S32 thumb_half_height = mThumbImage->getHeight()/2;
+ S32 top_edge = thumb_half_height;
+ S32 bottom_edge = getRect().getHeight() - (thumb_half_height);
+
+ y += mMouseOffset;
+ y = llclamp(y, top_edge, bottom_edge);
+
+ F32 t = F32(y - top_edge) / (bottom_edge - top_edge);
+ setValueAndCommit(t * (mMaxValue - mMinValue) + mMinValue );
+ }
+ getWindow()->setCursor(UI_CURSOR_ARROW);
+ LL_DEBUGS("UserInput") << "hover handled by " << getName() << " (active)" << LL_ENDL;
+ }
+ else
+ {
+ getWindow()->setCursor(UI_CURSOR_ARROW);
+ LL_DEBUGS("UserInput") << "hover handled by " << getName() << " (inactive)" << LL_ENDL;
+ }
+ return true;
+}
+
+bool LLSlider::handleMouseUp(S32 x, S32 y, MASK mask)
+{
+ bool handled = false;
+
+ if( hasMouseCapture() )
+ {
+ gFocusMgr.setMouseCapture( NULL );
+
+ if (mMouseUpSignal)
+ (*mMouseUpSignal)( this, getValueF32() );
+
+ handled = true;
+ make_ui_sound("UISndClickRelease");
+ }
+ else
+ {
+ handled = true;
+ }
+
+ return handled;
+}
+
+bool LLSlider::handleMouseDown(S32 x, S32 y, MASK mask)
+{
+ // only do sticky-focus on non-chrome widgets
+ if (!getIsChrome())
+ {
+ setFocus(true);
+ }
+ if (mMouseDownSignal)
+ (*mMouseDownSignal)( this, getValueF32() );
+
+ if (MASK_CONTROL & mask) // if CTRL is modifying
+ {
+ setValueAndCommit(mInitialValue);
+ }
+ else
+ {
+ // Find the offset of the actual mouse location from the center of the thumb.
+ if (mThumbRect.pointInRect(x,y))
+ {
+ mMouseOffset = (mOrientation == HORIZONTAL)
+ ? (mThumbRect.mLeft + mThumbImage->getWidth()/2) - x
+ : (mThumbRect.mBottom + mThumbImage->getHeight()/2) - y;
+ }
+ 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 = mThumbRect;
+ }
+ make_ui_sound("UISndClick");
+
+ return true;
+}
+
+bool LLSlider::handleKeyHere(KEY key, MASK mask)
+{
+ bool handled = false;
+ switch(key)
+ {
+ case KEY_DOWN:
+ case KEY_LEFT:
+ setValueAndCommit(getValueF32() - getIncrement());
+ handled = true;
+ break;
+ case KEY_UP:
+ case KEY_RIGHT:
+ setValueAndCommit(getValueF32() + getIncrement());
+ handled = true;
+ break;
+ default:
+ break;
+ }
+ return handled;
+}
+
+bool LLSlider::handleScrollWheel(S32 x, S32 y, S32 clicks)
+{
+ if ( mOrientation == VERTICAL )
+ {
+ F32 new_val = getValueF32() - clicks * getIncrement();
+ setValueAndCommit(new_val);
+ return true;
+ }
+ return LLF32UICtrl::handleScrollWheel(x,y,clicks);
+}
+
+void LLSlider::draw()
+{
+ F32 alpha = getDrawContext().mAlpha;
+
+ // since thumb image might still be decoding, need thumb to accomodate image size
+ updateThumbRect();
+
+ // Draw background and thumb.
+
+ // drawing solids requires texturing be disabled
+ gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+
+ // Track
+ LLPointer<LLUIImage>& trackImage = ( mOrientation == HORIZONTAL )
+ ? mTrackImageHorizontal
+ : mTrackImageVertical;
+
+ LLPointer<LLUIImage>& trackHighlightImage = ( mOrientation == HORIZONTAL )
+ ? mTrackHighlightHorizontalImage
+ : mTrackHighlightVerticalImage;
+
+ LLRect track_rect;
+ LLRect highlight_rect;
+
+ if ( mOrientation == HORIZONTAL )
+ {
+ track_rect.set(mThumbImage->getWidth() / 2,
+ getLocalRect().getCenterY() + (trackImage->getHeight() / 2),
+ getRect().getWidth() - mThumbImage->getWidth() / 2,
+ getLocalRect().getCenterY() - (trackImage->getHeight() / 2) );
+ highlight_rect.set(track_rect.mLeft, track_rect.mTop, mThumbRect.getCenterX(), track_rect.mBottom);
+ }
+ else
+ {
+ track_rect.set(getLocalRect().getCenterX() - (trackImage->getWidth() / 2),
+ getRect().getHeight(),
+ getLocalRect().getCenterX() + (trackImage->getWidth() / 2),
+ 0);
+ highlight_rect.set(track_rect.mLeft, track_rect.mTop, track_rect.mRight, track_rect.mBottom);
+ }
+
+ LLColor4 color = isInEnabledChain() ? LLColor4::white % alpha : LLColor4::white % (0.6f * alpha);
+ trackImage->draw(track_rect, color);
+ trackHighlightImage->draw(highlight_rect, color);
+
+ // Thumb
+ if (hasFocus())
+ {
+ // Draw focus highlighting.
+ mThumbImage->drawBorder(mThumbRect, gFocusMgr.getFocusColor() % alpha, gFocusMgr.getFocusFlashWidth());
+ }
+
+ if( hasMouseCapture() ) // currently clicking on slider
+ {
+ // Show ghost where thumb was before dragging began.
+ if (mThumbImage.notNull())
+ {
+ mThumbImage->draw(mDragStartThumbRect, mThumbCenterColor.get() % (0.3f * alpha));
+ }
+ if (mThumbImagePressed.notNull())
+ {
+ mThumbImagePressed->draw(mThumbRect, mThumbOutlineColor % alpha);
+ }
+ }
+ else if (!isInEnabledChain())
+ {
+ if (mThumbImageDisabled.notNull())
+ {
+ mThumbImageDisabled->draw(mThumbRect, mThumbCenterColor % alpha);
+ }
+ }
+ else
+ {
+ if (mThumbImage.notNull())
+ {
+ mThumbImage->draw(mThumbRect, mThumbCenterColor % alpha);
+ }
+ }
+
+ LLUICtrl::draw();
+}
+
+boost::signals2::connection LLSlider::setMouseDownCallback( const commit_signal_t::slot_type& cb )
+{
+ if (!mMouseDownSignal) mMouseDownSignal = new commit_signal_t();
+ return mMouseDownSignal->connect(cb);
+}
+
+boost::signals2::connection LLSlider::setMouseUpCallback( const commit_signal_t::slot_type& cb )
+{
+ if (!mMouseUpSignal) mMouseUpSignal = new commit_signal_t();
+ return mMouseUpSignal->connect(cb);
+}
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