139 lines
6.7 KiB
C++
139 lines
6.7 KiB
C++
/**
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* @file lldrawfrustum.cpp
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* @brief Implementation of lldrawfrustum
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*
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* $LicenseInfo:firstyear=2019&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2019, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "llviewerprecompiledheaders.h"
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#include "lldrawfrustum.h"
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#include "llviewercontrol.h"
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LLDrawFrustum::LLDrawFrustum()
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: mContextConeOpacity(0.f)
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{
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mContextConeInAlpha = gSavedSettings.getF32("ContextConeInAlpha"); // 0.0f
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mContextConeOutAlpha = gSavedSettings.getF32("ContextConeOutAlpha"); // 1.f
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mContextConeFadeTime = gSavedSettings.getF32("ContextConeFadeTime"); // 0.08f
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}
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LLDrawFrustum::LLDrawFrustum(LLView *origin)
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: mContextConeOpacity(0.f)
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{
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mContextConeInAlpha = gSavedSettings.getF32("ContextConeInAlpha");
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mContextConeOutAlpha = gSavedSettings.getF32("ContextConeOutAlpha");
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mContextConeFadeTime = gSavedSettings.getF32("ContextConeFadeTime");
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setFrustumOrigin(origin);
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}
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void LLDrawFrustum::setFrustumOrigin(LLView *origin)
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{
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if (origin)
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{
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mFrustumOrigin = origin->getHandle();
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}
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}
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void LLDrawFrustum::drawFrustum(const LLRect &derived_local_rect, const LLView *root_view, const LLView *drag_handle, bool has_focus)
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{
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if (mFrustumOrigin.get())
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{
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LLView * frustumOrigin = mFrustumOrigin.get();
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LLRect origin_rect;
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frustumOrigin->localRectToOtherView(frustumOrigin->getLocalRect(), &origin_rect, root_view);
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// draw context cone connecting derived floater (ex: color picker) with view (ex: color swatch) in parent floater
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if (has_focus && frustumOrigin->isInVisibleChain() && mContextConeOpacity > 0.001f)
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{
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gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
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LLGLEnable(GL_CULL_FACE);
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// <FS:Ansariel> Remove QUADS rendering mode
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//gGL.begin(LLRender::QUADS);
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//{
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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// gGL.vertex2i(origin_rect.mLeft, origin_rect.mTop);
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// gGL.vertex2i(origin_rect.mRight, origin_rect.mTop);
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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// gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mTop);
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// gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mTop);
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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// gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mTop);
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// gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mBottom);
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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// gGL.vertex2i(origin_rect.mLeft, origin_rect.mBottom);
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// gGL.vertex2i(origin_rect.mLeft, origin_rect.mTop);
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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// gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mBottom);
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// gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mTop);
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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// gGL.vertex2i(origin_rect.mRight, origin_rect.mTop);
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// gGL.vertex2i(origin_rect.mRight, origin_rect.mBottom);
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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// gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mBottom);
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// gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mBottom);
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// gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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// gGL.vertex2i(origin_rect.mRight, origin_rect.mBottom);
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// gGL.vertex2i(origin_rect.mLeft, origin_rect.mBottom);
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//}
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//gGL.end();
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gGL.begin(LLRender::TRIANGLE_STRIP);
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{
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gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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gGL.vertex2i(origin_rect.mLeft, origin_rect.mTop);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mTop);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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gGL.vertex2i(origin_rect.mRight, origin_rect.mTop);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mTop);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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gGL.vertex2i(origin_rect.mRight, origin_rect.mBottom);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mBottom);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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gGL.vertex2i(origin_rect.mLeft, origin_rect.mBottom);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mBottom);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity);
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gGL.vertex2i(origin_rect.mLeft, origin_rect.mTop);
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gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity);
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gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mTop);
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}
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// </FS:Ansariel>
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}
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if (gFocusMgr.childHasMouseCapture(drag_handle))
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{
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mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLCriticalDamp::getInterpolant(mContextConeFadeTime));
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}
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else
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{
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mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLCriticalDamp::getInterpolant(mContextConeFadeTime));
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}
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}
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}
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