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Diffstat (limited to 'indra/newview/lldrawfrustum.cpp')
| -rw-r--r-- | indra/newview/lldrawfrustum.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/indra/newview/lldrawfrustum.cpp b/indra/newview/lldrawfrustum.cpp new file mode 100644 index 0000000000..1d583223c8 --- /dev/null +++ b/indra/newview/lldrawfrustum.cpp @@ -0,0 +1,113 @@ +/** +* @file lldrawfrustum.cpp +* @brief Implementation of lldrawfrustum +* +* $LicenseInfo:firstyear=2019&license=viewerlgpl$ +* Second Life Viewer Source Code +* Copyright (C) 2019, 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 "llviewerprecompiledheaders.h" + +#include "lldrawfrustum.h" + +#include "llviewercontrol.h" + +LLDrawFrustum::LLDrawFrustum() + : mContextConeOpacity(0.f) +{ + mContextConeInAlpha = gSavedSettings.getF32("ContextConeInAlpha"); // 0.0f + mContextConeOutAlpha = gSavedSettings.getF32("ContextConeOutAlpha"); // 1.f + mContextConeFadeTime = gSavedSettings.getF32("ContextConeFadeTime"); // 0.08f +} + +LLDrawFrustum::LLDrawFrustum(LLView *origin) + : mContextConeOpacity(0.f) +{ + mContextConeInAlpha = gSavedSettings.getF32("ContextConeInAlpha"); + mContextConeOutAlpha = gSavedSettings.getF32("ContextConeOutAlpha"); + mContextConeFadeTime = gSavedSettings.getF32("ContextConeFadeTime"); + setFrustumOrigin(origin); +} + +void LLDrawFrustum::setFrustumOrigin(LLView *origin) +{ + if (origin) + { + mFrustumOrigin = origin->getHandle(); + } +} + +void LLDrawFrustum::drawFrustum(const LLRect &derived_local_rect, const LLView *root_view, const LLView *drag_handle, bool has_focus) +{ + if (mFrustumOrigin.get()) + { + LLView * frustumOrigin = mFrustumOrigin.get(); + LLRect origin_rect; + frustumOrigin->localRectToOtherView(frustumOrigin->getLocalRect(), &origin_rect, root_view); + // draw context cone connecting derived floater (ex: color picker) with view (ex: color swatch) in parent floater + if (has_focus && frustumOrigin->isInVisibleChain() && mContextConeOpacity > 0.001f) + { + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + LLGLEnable(GL_CULL_FACE); + gGL.begin(LLRender::QUADS); + { + gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity); + gGL.vertex2i(origin_rect.mLeft, origin_rect.mTop); + gGL.vertex2i(origin_rect.mRight, origin_rect.mTop); + gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity); + gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mTop); + gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mTop); + + gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity); + gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mTop); + gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mBottom); + gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity); + gGL.vertex2i(origin_rect.mLeft, origin_rect.mBottom); + gGL.vertex2i(origin_rect.mLeft, origin_rect.mTop); + + gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity); + gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mBottom); + gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mTop); + gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity); + gGL.vertex2i(origin_rect.mRight, origin_rect.mTop); + gGL.vertex2i(origin_rect.mRight, origin_rect.mBottom); + + gGL.color4f(0.f, 0.f, 0.f, mContextConeOutAlpha * mContextConeOpacity); + gGL.vertex2i(derived_local_rect.mLeft, derived_local_rect.mBottom); + gGL.vertex2i(derived_local_rect.mRight, derived_local_rect.mBottom); + gGL.color4f(0.f, 0.f, 0.f, mContextConeInAlpha * mContextConeOpacity); + gGL.vertex2i(origin_rect.mRight, origin_rect.mBottom); + gGL.vertex2i(origin_rect.mLeft, origin_rect.mBottom); + } + gGL.end(); + } + + if (gFocusMgr.childHasMouseCapture(drag_handle)) + { + mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLCriticalDamp::getInterpolant(mContextConeFadeTime)); + } + else + { + mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLCriticalDamp::getInterpolant(mContextConeFadeTime)); + } + } +} + |