llhudtext.cpp
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上传日期:2021-03-01
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- /**
- * @file llhudtext.cpp
- * @brief LLHUDText class implementation
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, 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 "llviewerprecompiledheaders.h"
- #include "llhudtext.h"
- #include "llrender.h"
- #include "llagent.h"
- #include "llviewercontrol.h"
- #include "llcriticaldamp.h"
- #include "lldrawable.h"
- #include "llfontgl.h"
- #include "llglheaders.h"
- #include "llhudrender.h"
- #include "llui.h"
- #include "llviewercamera.h"
- #include "llviewertexturelist.h"
- #include "llviewerobject.h"
- #include "llvovolume.h"
- #include "llviewerwindow.h"
- #include "llstatusbar.h"
- #include "llmenugl.h"
- #include "pipeline.h"
- #include <boost/tokenizer.hpp>
- const F32 SPRING_STRENGTH = 0.7f;
- const F32 RESTORATION_SPRING_TIME_CONSTANT = 0.1f;
- const F32 HORIZONTAL_PADDING = 15.f;
- const F32 VERTICAL_PADDING = 12.f;
- const F32 BUFFER_SIZE = 2.f;
- const F32 MIN_EDGE_OVERLAP = 3.f;
- F32 HUD_TEXT_MAX_WIDTH = 190.f;
- const F32 HUD_TEXT_MAX_WIDTH_NO_BUBBLE = 1000.f;
- const F32 RESIZE_TIME = 0.f;
- const S32 NUM_OVERLAP_ITERATIONS = 10;
- const F32 NEIGHBOR_FORCE_FRACTION = 1.f;
- const F32 POSITION_DAMPING_TC = 0.2f;
- const F32 MAX_STABLE_CAMERA_VELOCITY = 0.1f;
- const F32 LOD_0_SCREEN_COVERAGE = 0.15f;
- const F32 LOD_1_SCREEN_COVERAGE = 0.30f;
- const F32 LOD_2_SCREEN_COVERAGE = 0.40f;
- std::set<LLPointer<LLHUDText> > LLHUDText::sTextObjects;
- std::vector<LLPointer<LLHUDText> > LLHUDText::sVisibleTextObjects;
- std::vector<LLPointer<LLHUDText> > LLHUDText::sVisibleHUDTextObjects;
- BOOL LLHUDText::sDisplayText = TRUE ;
- bool lltextobject_further_away::operator()(const LLPointer<LLHUDText>& lhs, const LLPointer<LLHUDText>& rhs) const
- {
- return (lhs->getDistance() > rhs->getDistance()) ? true : false;
- }
- LLHUDText::LLHUDText(const U8 type) :
- LLHUDObject(type),
- mUseBubble(FALSE),
- mUsePixelSize(TRUE),
- mVisibleOffScreen(FALSE),
- mWidth(0.f),
- mHeight(0.f),
- mFontp(LLFontGL::getFontSansSerifSmall()),
- mBoldFontp(LLFontGL::getFontSansSerifBold()),
- mMass(1.f),
- mMaxLines(10),
- mOffsetY(0),
- mTextAlignment(ALIGN_TEXT_CENTER),
- mVertAlignment(ALIGN_VERT_CENTER),
- mLOD(0),
- mHidden(FALSE)
- {
- mColor = LLColor4(1.f, 1.f, 1.f, 1.f);
- mDoFade = TRUE;
- mFadeDistance = 8.f;
- mFadeRange = 4.f;
- mZCompare = TRUE;
- mDropShadow = TRUE;
- mOffscreen = FALSE;
- mRadius = 0.1f;
- LLPointer<LLHUDText> ptr(this);
- sTextObjects.insert(ptr);
- }
- LLHUDText::~LLHUDText()
- {
- }
- BOOL LLHUDText::lineSegmentIntersect(const LLVector3& start, const LLVector3& end, LLVector3& intersection, BOOL debug_render)
- {
- if (!mVisible || mHidden)
- {
- return FALSE;
- }
- // don't pick text that isn't bound to a viewerobject or isn't in a bubble
- if (!mSourceObject || mSourceObject->mDrawable.isNull() || !mUseBubble)
- {
- return FALSE;
- }
-
- F32 alpha_factor = 1.f;
- LLColor4 text_color = mColor;
- if (mDoFade)
- {
- if (mLastDistance > mFadeDistance)
- {
- alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
- text_color.mV[3] = text_color.mV[3]*alpha_factor;
- }
- }
- if (text_color.mV[3] < 0.01f)
- {
- return FALSE;
- }
- mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f));
- // scale screen size of borders down
- //RN: for now, text on hud objects is never occluded
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
-
- if (mOnHUDAttachment)
- {
- x_pixel_vec = LLVector3::y_axis / (F32)gViewerWindow->getWindowWidthScaled();
- y_pixel_vec = LLVector3::z_axis / (F32)gViewerWindow->getWindowHeightScaled();
- }
- else
- {
- LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
- }
- LLVector3 width_vec = mWidth * x_pixel_vec;
- LLVector3 height_vec = mHeight * y_pixel_vec;
-
- LLCoordGL screen_pos;
- LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE);
- LLVector2 screen_offset;
- screen_offset = updateScreenPos(mPositionOffset);
-
- LLVector3 render_position = mPositionAgent
- + (x_pixel_vec * screen_offset.mV[VX])
- + (y_pixel_vec * screen_offset.mV[VY]);
- if (mUseBubble)
- {
- LLVector3 bg_pos = render_position
- + (F32)mOffsetY * y_pixel_vec
- - (width_vec / 2.f)
- - (height_vec);
- //LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
- LLVector3 v[] =
- {
- bg_pos,
- bg_pos + width_vec,
- bg_pos + width_vec + height_vec,
- bg_pos + height_vec,
- };
- if (debug_render)
- {
- gGL.begin(LLRender::LINE_STRIP);
- gGL.vertex3fv(v[0].mV);
- gGL.vertex3fv(v[1].mV);
- gGL.vertex3fv(v[2].mV);
- gGL.vertex3fv(v[3].mV);
- gGL.vertex3fv(v[0].mV);
- gGL.vertex3fv(v[2].mV);
- gGL.end();
- }
- LLVector3 dir = end-start;
- F32 t = 0.f;
- if (LLTriangleRayIntersect(v[0], v[1], v[2], start, dir, NULL, NULL, &t, FALSE) ||
- LLTriangleRayIntersect(v[2], v[3], v[0], start, dir, NULL, NULL, &t, FALSE) )
- {
- if (t <= 1.f)
- {
- intersection = start + dir*t;
- return TRUE;
- }
- }
- }
- return FALSE;
- }
- void LLHUDText::render()
- {
- if (!mOnHUDAttachment && sDisplayText)
- {
- LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
- renderText(FALSE);
- }
- }
- void LLHUDText::renderForSelect()
- {
- if (!mOnHUDAttachment)
- {
- LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
- renderText(TRUE);
- }
- }
- void LLHUDText::renderText(BOOL for_select)
- {
- if (!mVisible || mHidden)
- {
- return;
- }
- // don't pick text that isn't bound to a viewerobject or isn't in a bubble
- if (for_select &&
- (!mSourceObject || mSourceObject->mDrawable.isNull() || !mUseBubble))
- {
- return;
- }
-
- if (for_select)
- {
- gGL.getTexUnit(0)->disable();
- }
- else
- {
- gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
- }
- LLGLState gls_blend(GL_BLEND, for_select ? FALSE : TRUE);
- LLGLState gls_alpha(GL_ALPHA_TEST, for_select ? FALSE : TRUE);
-
- LLColor4 shadow_color(0.f, 0.f, 0.f, 1.f);
- F32 alpha_factor = 1.f;
- LLColor4 text_color = mColor;
- if (mDoFade)
- {
- if (mLastDistance > mFadeDistance)
- {
- alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
- text_color.mV[3] = text_color.mV[3]*alpha_factor;
- }
- }
- if (text_color.mV[3] < 0.01f)
- {
- return;
- }
- shadow_color.mV[3] = text_color.mV[3];
- mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f));
- // *TODO: cache this image
- LLUIImagePtr imagep = LLUI::getUIImage("Rounded_Square");
- // *TODO: make this a per-text setting
- LLColor4 bg_color = LLUIColorTable::instance().getColor("BackgroundChatColor");
- bg_color.setAlpha(gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor);
- const S32 border_height = 16;
- const S32 border_width = 16;
- // *TODO move this into helper function
- F32 border_scale = 1.f;
- if (border_height * 2 > mHeight)
- {
- border_scale = (F32)mHeight / ((F32)border_height * 2.f);
- }
- if (border_width * 2 > mWidth)
- {
- border_scale = llmin(border_scale, (F32)mWidth / ((F32)border_width * 2.f));
- }
- // scale screen size of borders down
- //RN: for now, text on hud objects is never occluded
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
-
- if (mOnHUDAttachment)
- {
- x_pixel_vec = LLVector3::y_axis / (F32)gViewerWindow->getWorldViewWidthRaw();
- y_pixel_vec = LLVector3::z_axis / (F32)gViewerWindow->getWorldViewHeightRaw();
- }
- else
- {
- LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
- }
- LLVector2 border_scale_vec((F32)border_width / (F32)imagep->getTextureWidth(), (F32)border_height / (F32)imagep->getTextureHeight());
- LLVector3 width_vec = mWidth * x_pixel_vec;
- LLVector3 height_vec = mHeight * y_pixel_vec;
- LLVector3 scaled_border_width = (F32)llfloor(border_scale * (F32)border_width) * x_pixel_vec;
- LLVector3 scaled_border_height = (F32)llfloor(border_scale * (F32)border_height) * y_pixel_vec;
- mRadius = (width_vec + height_vec).magVec() * 0.5f;
- LLCoordGL screen_pos;
- LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE);
- LLVector2 screen_offset;
- if (!mUseBubble)
- {
- screen_offset = mPositionOffset;
- }
- else
- {
- screen_offset = updateScreenPos(mPositionOffset);
- }
- LLVector3 render_position = mPositionAgent
- + (x_pixel_vec * screen_offset.mV[VX])
- + (y_pixel_vec * screen_offset.mV[VY]);
- //if (mOnHUD)
- //{
- // render_position.mV[VY] -= fmodf(render_position.mV[VY], 1.f / (F32)gViewerWindow->getWindowWidthScaled());
- // render_position.mV[VZ] -= fmodf(render_position.mV[VZ], 1.f / (F32)gViewerWindow->getWindowHeightScaled());
- //}
- //else
- //{
- // render_position = LLViewerCamera::getInstance()->roundToPixel(render_position);
- //}
- if (mUseBubble)
- {
- LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
- LLUI::pushMatrix();
- {
- LLVector3 bg_pos = render_position
- + (F32)mOffsetY * y_pixel_vec
- - (width_vec / 2.f)
- - (height_vec);
- LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
- if (for_select)
- {
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- S32 name = mSourceObject->mGLName;
- LLColor4U coloru((U8)(name >> 16), (U8)(name >> 8), (U8)name);
- gGL.color4ubv(coloru.mV);
- gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec);
- LLUI::popMatrix();
- return;
- }
- else
- {
- gGL.getTexUnit(0)->bind(imagep->getImage());
-
- gGL.color4fv(bg_color.mV);
- gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec);
-
- if ( mLabelSegments.size())
- {
- LLUI::pushMatrix();
- {
- gGL.color4f(text_color.mV[VX], text_color.mV[VY], text_color.mV[VZ], gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor);
- LLVector3 label_height = (mFontp->getLineHeight() * mLabelSegments.size() + (VERTICAL_PADDING / 3.f)) * y_pixel_vec;
- LLVector3 label_offset = height_vec - label_height;
- LLUI::translate(label_offset.mV[VX], label_offset.mV[VY], label_offset.mV[VZ]);
- gl_segmented_rect_3d_tex_top(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, label_height);
- }
- LLUI::popMatrix();
- }
- }
- BOOL outside_width = llabs(mPositionOffset.mV[VX]) > mWidth * 0.5f;
- BOOL outside_height = llabs(mPositionOffset.mV[VY] + (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.5f : 0.f)) > mHeight * (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.75f : 0.5f);
- // draw line segments pointing to parent object
- if (!mOffscreen && (outside_width || outside_height))
- {
- LLUI::pushMatrix();
- {
- gGL.color4fv(bg_color.mV);
- LLVector3 target_pos = -1.f * (mPositionOffset.mV[VX] * x_pixel_vec + mPositionOffset.mV[VY] * y_pixel_vec);
- target_pos += (width_vec / 2.f);
- target_pos += mVertAlignment == ALIGN_VERT_CENTER ? (height_vec * 0.5f) : LLVector3::zero;
- target_pos -= 3.f * x_pixel_vec;
- target_pos -= 6.f * y_pixel_vec;
- LLUI::translate(target_pos.mV[VX], target_pos.mV[VY], target_pos.mV[VZ]);
- gl_segmented_rect_3d_tex(border_scale_vec, 3.f * x_pixel_vec, 3.f * y_pixel_vec, 6.f * x_pixel_vec, 6.f * y_pixel_vec);
- }
- LLUI::popMatrix();
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- LLGLDepthTest gls_depth(mZCompare ? GL_TRUE : GL_FALSE, GL_FALSE);
-
- LLVector3 box_center_offset;
- box_center_offset = (width_vec * 0.5f) + (height_vec * 0.5f);
- LLUI::translate(box_center_offset.mV[VX], box_center_offset.mV[VY], box_center_offset.mV[VZ]);
- gGL.color4fv(bg_color.mV);
- LLUI::setLineWidth(2.0);
- gGL.begin(LLRender::LINES);
- {
- if (outside_width)
- {
- LLVector3 vert;
- // draw line in x then y
- if (mPositionOffset.mV[VX] < 0.f)
- {
- // start at right edge
- vert = width_vec * 0.5f;
- gGL.vertex3fv(vert.mV);
- }
- else
- {
- // start at left edge
- vert = width_vec * -0.5f;
- gGL.vertex3fv(vert.mV);
- }
- vert = -mPositionOffset.mV[VX] * x_pixel_vec;
- gGL.vertex3fv(vert.mV);
- gGL.vertex3fv(vert.mV);
- vert -= mPositionOffset.mV[VY] * y_pixel_vec;
- vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
- gGL.vertex3fv(vert.mV);
- }
- else
- {
- LLVector3 vert;
- // draw line in y then x
- if (mPositionOffset.mV[VY] < 0.f)
- {
- // start at top edge
- vert = (height_vec * 0.5f) - (mPositionOffset.mV[VX] * x_pixel_vec);
- gGL.vertex3fv(vert.mV);
- }
- else
- {
- // start at bottom edge
- vert = (height_vec * -0.5f) - (mPositionOffset.mV[VX] * x_pixel_vec);
- gGL.vertex3fv(vert.mV);
- }
- vert = -mPositionOffset.mV[VY] * y_pixel_vec - mPositionOffset.mV[VX] * x_pixel_vec;
- vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
- gGL.vertex3fv(vert.mV);
- }
- }
- gGL.end();
- LLUI::setLineWidth(1.0);
- }
- }
- LLUI::popMatrix();
- }
- F32 y_offset = (F32)mOffsetY;
-
- // Render label
- {
- gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
- for(std::vector<LLHUDTextSegment>::iterator segment_iter = mLabelSegments.begin();
- segment_iter != mLabelSegments.end(); ++segment_iter )
- {
- const LLFontGL* fontp = (segment_iter->mStyle == LLFontGL::BOLD) ? mBoldFontp : mFontp;
- y_offset -= fontp->getLineHeight();
- F32 x_offset;
- if (mTextAlignment == ALIGN_TEXT_CENTER)
- {
- x_offset = -0.5f*segment_iter->getWidth(fontp);
- }
- else // ALIGN_LEFT
- {
- x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f);
- }
- LLColor4 label_color(0.f, 0.f, 0.f, 1.f);
- label_color.mV[VALPHA] = alpha_factor;
- hud_render_text(segment_iter->getText(), render_position, *fontp, segment_iter->mStyle, LLFontGL::NO_SHADOW, x_offset, y_offset, label_color, mOnHUDAttachment);
- }
- }
- // Render text
- {
- // -1 mMaxLines means unlimited lines.
- S32 start_segment;
- S32 max_lines = getMaxLines();
- if (max_lines < 0)
- {
- start_segment = 0;
- }
- else
- {
- start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines);
- }
- for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin() + start_segment;
- segment_iter != mTextSegments.end(); ++segment_iter )
- {
- const LLFontGL* fontp = (segment_iter->mStyle == LLFontGL::BOLD) ? mBoldFontp : mFontp;
- y_offset -= fontp->getLineHeight();
- U8 style = segment_iter->mStyle;
- LLFontGL::ShadowType shadow = LLFontGL::NO_SHADOW;
- if (mDropShadow)
- {
- shadow = LLFontGL::DROP_SHADOW;
- }
-
- F32 x_offset;
- if (mTextAlignment== ALIGN_TEXT_CENTER)
- {
- x_offset = -0.5f*segment_iter->getWidth(fontp);
- }
- else // ALIGN_LEFT
- {
- x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f);
- }
- text_color = segment_iter->mColor;
- text_color.mV[VALPHA] *= alpha_factor;
- hud_render_text(segment_iter->getText(), render_position, *fontp, style, shadow, x_offset, y_offset, text_color, mOnHUDAttachment);
- }
- }
- /// Reset the default color to white. The renderer expects this to be the default.
- glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
- if (for_select)
- {
- gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
- }
- }
- void LLHUDText::setStringUTF8(const std::string &wtext)
- {
- setString(utf8str_to_wstring(wtext));
- }
- void LLHUDText::setString(const LLWString &wtext)
- {
- mTextSegments.clear();
- addLine(wtext, mColor);
- }
- void LLHUDText::clearString()
- {
- mTextSegments.clear();
- }
- void LLHUDText::addLine(const std::string &str, const LLColor4& color, const LLFontGL::StyleFlags style)
- {
- addLine(utf8str_to_wstring(str), color, style);
- }
- void LLHUDText::addLine(const LLWString &wstr, const LLColor4& color, const LLFontGL::StyleFlags style)
- {
- if (gNoRender)
- {
- return;
- }
- if (!wstr.empty())
- {
- LLWString wline(wstr);
- typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
- LLWString seps(utf8str_to_wstring("rn"));
- boost::char_separator<llwchar> sep(seps.c_str());
- tokenizer tokens(wline, sep);
- tokenizer::iterator iter = tokens.begin();
- while (iter != tokens.end())
- {
- U32 line_length = 0;
- do
- {
- S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(), mUseBubble ? HUD_TEXT_MAX_WIDTH : HUD_TEXT_MAX_WIDTH_NO_BUBBLE, wline.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
- mTextSegments.push_back(LLHUDTextSegment(iter->substr(line_length, segment_length), style, color));
- line_length += segment_length;
- }
- while (line_length != iter->size());
- ++iter;
- }
- }
- }
- void LLHUDText::setLabel(const std::string &label)
- {
- setLabel(utf8str_to_wstring(label));
- }
- void LLHUDText::setLabel(const LLWString &wlabel)
- {
- mLabelSegments.clear();
- if (!wlabel.empty())
- {
- LLWString wstr(wlabel);
- LLWString seps(utf8str_to_wstring("rn"));
- LLWString empty;
- typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
- boost::char_separator<llwchar> sep(seps.c_str(), empty.c_str(), boost::keep_empty_tokens);
- tokenizer tokens(wstr, sep);
- tokenizer::iterator iter = tokens.begin();
- while (iter != tokens.end())
- {
- U32 line_length = 0;
- do
- {
- S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(), mUseBubble ? HUD_TEXT_MAX_WIDTH : HUD_TEXT_MAX_WIDTH_NO_BUBBLE, wstr.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
- mLabelSegments.push_back(LLHUDTextSegment(iter->substr(line_length, segment_length), LLFontGL::NORMAL, mColor));
- line_length += segment_length;
- }
- while (line_length != iter->size());
- ++iter;
- }
- }
- }
- void LLHUDText::setDropShadow(const BOOL do_shadow)
- {
- mDropShadow = do_shadow;
- }
- void LLHUDText::setZCompare(const BOOL zcompare)
- {
- mZCompare = zcompare;
- }
- void LLHUDText::setFont(const LLFontGL* font)
- {
- mFontp = font;
- }
- void LLHUDText::setColor(const LLColor4 &color)
- {
- mColor = color;
- for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin();
- segment_iter != mTextSegments.end(); ++segment_iter )
- {
- segment_iter->mColor = color;
- }
- }
- void LLHUDText::setUsePixelSize(const BOOL use_pixel_size)
- {
- mUsePixelSize = use_pixel_size;
- }
- void LLHUDText::setDoFade(const BOOL do_fade)
- {
- mDoFade = do_fade;
- }
- void LLHUDText::updateVisibility()
- {
- if (mSourceObject)
- {
- mSourceObject->updateText();
- }
-
- mPositionAgent = gAgent.getPosAgentFromGlobal(mPositionGlobal);
- if (!mSourceObject)
- {
- //llwarns << "LLHUDText::updateScreenPos -- mSourceObject is NULL!" << llendl;
- mVisible = TRUE;
- if (mOnHUDAttachment)
- {
- sVisibleHUDTextObjects.push_back(LLPointer<LLHUDText> (this));
- }
- else
- {
- sVisibleTextObjects.push_back(LLPointer<LLHUDText> (this));
- }
- return;
- }
- // Not visible if parent object is dead
- if (mSourceObject->isDead())
- {
- mVisible = FALSE;
- return;
- }
- // for now, all text on hud objects is visible
- if (mOnHUDAttachment)
- {
- mVisible = TRUE;
- sVisibleHUDTextObjects.push_back(LLPointer<LLHUDText> (this));
- mLastDistance = mPositionAgent.mV[VX];
- return;
- }
- // push text towards camera by radius of object, but not past camera
- LLVector3 vec_from_camera = mPositionAgent - LLViewerCamera::getInstance()->getOrigin();
- LLVector3 dir_from_camera = vec_from_camera;
- dir_from_camera.normVec();
- if (dir_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= 0.f)
- { //text is behind camera, don't render
- mVisible = FALSE;
- return;
- }
-
- if (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= LLViewerCamera::getInstance()->getNear() + 0.1f + mSourceObject->getVObjRadius())
- {
- mPositionAgent = LLViewerCamera::getInstance()->getOrigin() + vec_from_camera * ((LLViewerCamera::getInstance()->getNear() + 0.1f) / (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis()));
- }
- else
- {
- mPositionAgent -= dir_from_camera * mSourceObject->getVObjRadius();
- }
- mLastDistance = (mPositionAgent - LLViewerCamera::getInstance()->getOrigin()).magVec();
- if (mLOD >= 3 || !mTextSegments.size() || (mDoFade && (mLastDistance > mFadeDistance + mFadeRange)))
- {
- mVisible = FALSE;
- return;
- }
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
- LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
- LLVector3 render_position = mPositionAgent +
- (x_pixel_vec * mPositionOffset.mV[VX]) +
- (y_pixel_vec * mPositionOffset.mV[VY]);
- mOffscreen = FALSE;
- if (!LLViewerCamera::getInstance()->sphereInFrustum(render_position, mRadius))
- {
- if (!mVisibleOffScreen)
- {
- mVisible = FALSE;
- return;
- }
- else
- {
- mOffscreen = TRUE;
- }
- }
- mVisible = TRUE;
- sVisibleTextObjects.push_back(LLPointer<LLHUDText> (this));
- }
- LLVector2 LLHUDText::updateScreenPos(LLVector2 &offset)
- {
- LLCoordGL screen_pos;
- LLVector2 screen_pos_vec;
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
- LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
- LLVector3 world_pos = mPositionAgent + (offset.mV[VX] * x_pixel_vec) + (offset.mV[VY] * y_pixel_vec);
- if (!LLViewerCamera::getInstance()->projectPosAgentToScreen(world_pos, screen_pos, FALSE) && mVisibleOffScreen)
- {
- // bubble off-screen, so find a spot for it along screen edge
- LLViewerCamera::getInstance()->projectPosAgentToScreenEdge(world_pos, screen_pos);
- }
- screen_pos_vec.setVec((F32)screen_pos.mX, (F32)screen_pos.mY);
- LLRect world_rect = gViewerWindow->getWorldViewRectScaled();
- S32 bottom = world_rect.mBottom + STATUS_BAR_HEIGHT;
- LLVector2 screen_center;
- screen_center.mV[VX] = llclamp((F32)screen_pos_vec.mV[VX], (F32)world_rect.mLeft + mWidth * 0.5f, (F32)world_rect.mRight - mWidth * 0.5f);
- if(mVertAlignment == ALIGN_VERT_TOP)
- {
- screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY],
- (F32)bottom,
- (F32)world_rect.mTop - mHeight - (F32)MENU_BAR_HEIGHT);
- mSoftScreenRect.setLeftTopAndSize(screen_center.mV[VX] - (mWidth + BUFFER_SIZE) * 0.5f,
- screen_center.mV[VY] + (mHeight + BUFFER_SIZE), mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE);
- }
- else
- {
- screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY],
- (F32)bottom + mHeight * 0.5f,
- (F32)world_rect.mTop - mHeight * 0.5f - (F32)MENU_BAR_HEIGHT);
- mSoftScreenRect.setCenterAndSize(screen_center.mV[VX], screen_center.mV[VY], mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE);
- }
- return offset + (screen_center - LLVector2((F32)screen_pos.mX, (F32)screen_pos.mY));
- }
- void LLHUDText::updateSize()
- {
- F32 width = 0.f;
- S32 max_lines = getMaxLines();
- S32 lines = (max_lines < 0) ? (S32)mTextSegments.size() : llmin((S32)mTextSegments.size(), max_lines);
- F32 height = (F32)mFontp->getLineHeight() * (lines + mLabelSegments.size());
- S32 start_segment;
- if (max_lines < 0) start_segment = 0;
- else start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines);
- std::vector<LLHUDTextSegment>::iterator iter = mTextSegments.begin() + start_segment;
- while (iter != mTextSegments.end())
- {
- width = llmax(width, llmin(iter->getWidth(mFontp), HUD_TEXT_MAX_WIDTH));
- ++iter;
- }
- iter = mLabelSegments.begin();
- while (iter != mLabelSegments.end())
- {
- width = llmax(width, llmin(iter->getWidth(mFontp), HUD_TEXT_MAX_WIDTH));
- ++iter;
- }
-
- if (width == 0.f)
- {
- return;
- }
- width += HORIZONTAL_PADDING;
- height += VERTICAL_PADDING;
- if (!mResizeTimer.getStarted() && (width != mWidth || height != mHeight))
- {
- mResizeTimer.start();
- }
- // *NOTE: removed logic which did a divide by zero.
- F32 u = 1.f;//llclamp(mResizeTimer.getElapsedTimeF32() / RESIZE_TIME, 0.f, 1.f);
- if (u == 1.f)
- {
- mResizeTimer.stop();
- }
- mWidth = llmax(width, lerp(mWidth, (F32)width, u));
- mHeight = llmax(height, lerp(mHeight, (F32)height, u));
- }
- void LLHUDText::updateAll()
- {
- // iterate over all text objects, calculate their restoration forces,
- // and add them to the visible set if they are on screen and close enough
- sVisibleTextObjects.clear();
- sVisibleHUDTextObjects.clear();
-
- TextObjectIterator text_it;
- for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
- {
- LLHUDText* textp = (*text_it);
- textp->mTargetPositionOffset.clearVec();
- textp->updateSize();
- textp->updateVisibility();
- }
-
- // sort back to front for rendering purposes
- std::sort(sVisibleTextObjects.begin(), sVisibleTextObjects.end(), lltextobject_further_away());
- std::sort(sVisibleHUDTextObjects.begin(), sVisibleHUDTextObjects.end(), lltextobject_further_away());
- // iterate from front to back, and set LOD based on current screen coverage
- F32 screen_area = (F32)(gViewerWindow->getWindowWidthScaled() * gViewerWindow->getWindowHeightScaled());
- F32 current_screen_area = 0.f;
- std::vector<LLPointer<LLHUDText> >::reverse_iterator r_it;
- for (r_it = sVisibleTextObjects.rbegin(); r_it != sVisibleTextObjects.rend(); ++r_it)
- {
- LLHUDText* textp = (*r_it);
- if (textp->mUseBubble)
- {
- if (current_screen_area / screen_area > LOD_2_SCREEN_COVERAGE)
- {
- textp->setLOD(3);
- }
- else if (current_screen_area / screen_area > LOD_1_SCREEN_COVERAGE)
- {
- textp->setLOD(2);
- }
- else if (current_screen_area / screen_area > LOD_0_SCREEN_COVERAGE)
- {
- textp->setLOD(1);
- }
- else
- {
- textp->setLOD(0);
- }
- textp->updateSize();
- // find on-screen position and initialize collision rectangle
- textp->mTargetPositionOffset = textp->updateScreenPos(LLVector2::zero);
- current_screen_area += (F32)(textp->mSoftScreenRect.getWidth() * textp->mSoftScreenRect.getHeight());
- }
- }
- LLStat* camera_vel_stat = LLViewerCamera::getInstance()->getVelocityStat();
- F32 camera_vel = camera_vel_stat->getCurrent();
- if (camera_vel > MAX_STABLE_CAMERA_VELOCITY)
- {
- return;
- }
- VisibleTextObjectIterator src_it;
- for (S32 i = 0; i < NUM_OVERLAP_ITERATIONS; i++)
- {
- for (src_it = sVisibleTextObjects.begin(); src_it != sVisibleTextObjects.end(); ++src_it)
- {
- LLHUDText* src_textp = (*src_it);
- if (!src_textp->mUseBubble)
- {
- continue;
- }
- VisibleTextObjectIterator dst_it = src_it;
- ++dst_it;
- for (; dst_it != sVisibleTextObjects.end(); ++dst_it)
- {
- LLHUDText* dst_textp = (*dst_it);
- if (!dst_textp->mUseBubble)
- {
- continue;
- }
- if (src_textp->mSoftScreenRect.overlaps(dst_textp->mSoftScreenRect))
- {
- LLRectf intersect_rect = src_textp->mSoftScreenRect;
- intersect_rect.intersectWith(dst_textp->mSoftScreenRect);
- intersect_rect.stretch(-BUFFER_SIZE * 0.5f);
-
- F32 src_center_x = src_textp->mSoftScreenRect.getCenterX();
- F32 src_center_y = src_textp->mSoftScreenRect.getCenterY();
- F32 dst_center_x = dst_textp->mSoftScreenRect.getCenterX();
- F32 dst_center_y = dst_textp->mSoftScreenRect.getCenterY();
- F32 intersect_center_x = intersect_rect.getCenterX();
- F32 intersect_center_y = intersect_rect.getCenterY();
- LLVector2 force = lerp(LLVector2(dst_center_x - intersect_center_x, dst_center_y - intersect_center_y),
- LLVector2(intersect_center_x - src_center_x, intersect_center_y - src_center_y),
- 0.5f);
- force.setVec(dst_center_x - src_center_x, dst_center_y - src_center_y);
- force.normVec();
- LLVector2 src_force = -1.f * force;
- LLVector2 dst_force = force;
- LLVector2 force_strength;
- F32 src_mult = dst_textp->mMass / (dst_textp->mMass + src_textp->mMass);
- F32 dst_mult = 1.f - src_mult;
- F32 src_aspect_ratio = src_textp->mSoftScreenRect.getWidth() / src_textp->mSoftScreenRect.getHeight();
- F32 dst_aspect_ratio = dst_textp->mSoftScreenRect.getWidth() / dst_textp->mSoftScreenRect.getHeight();
- src_force.mV[VY] *= src_aspect_ratio;
- src_force.normVec();
- dst_force.mV[VY] *= dst_aspect_ratio;
- dst_force.normVec();
- src_force.mV[VX] *= llmin(intersect_rect.getWidth() * src_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
- src_force.mV[VY] *= llmin(intersect_rect.getHeight() * src_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
- dst_force.mV[VX] *= llmin(intersect_rect.getWidth() * dst_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
- dst_force.mV[VY] *= llmin(intersect_rect.getHeight() * dst_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
-
- src_textp->mTargetPositionOffset += src_force;
- dst_textp->mTargetPositionOffset += dst_force;
- src_textp->mTargetPositionOffset = src_textp->updateScreenPos(src_textp->mTargetPositionOffset);
- dst_textp->mTargetPositionOffset = dst_textp->updateScreenPos(dst_textp->mTargetPositionOffset);
- }
- }
- }
- }
- VisibleTextObjectIterator this_object_it;
- for (this_object_it = sVisibleTextObjects.begin(); this_object_it != sVisibleTextObjects.end(); ++this_object_it)
- {
- if (!(*this_object_it)->mUseBubble)
- {
- continue;
- }
- (*this_object_it)->mPositionOffset = lerp((*this_object_it)->mPositionOffset, (*this_object_it)->mTargetPositionOffset, LLCriticalDamp::getInterpolant(POSITION_DAMPING_TC));
- }
- }
- void LLHUDText::setLOD(S32 lod)
- {
- mLOD = lod;
- //RN: uncomment this to visualize LOD levels
- //std::string label = llformat("%d", lod);
- //setLabel(label);
- }
- S32 LLHUDText::getMaxLines()
- {
- switch(mLOD)
- {
- case 0:
- return mMaxLines;
- case 1:
- return mMaxLines > 0 ? mMaxLines / 2 : 5;
- case 2:
- return mMaxLines > 0 ? mMaxLines / 3 : 2;
- default:
- // label only
- return 0;
- }
- }
- void LLHUDText::markDead()
- {
- sTextObjects.erase(LLPointer<LLHUDText>(this));
- LLHUDObject::markDead();
- }
- void LLHUDText::renderAllHUD()
- {
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- LLGLState::checkClientArrays();
- {
- LLGLEnable color_mat(GL_COLOR_MATERIAL);
- LLGLDepthTest depth(GL_FALSE, GL_FALSE);
-
- VisibleTextObjectIterator text_it;
- for (text_it = sVisibleHUDTextObjects.begin(); text_it != sVisibleHUDTextObjects.end(); ++text_it)
- {
- (*text_it)->renderText(FALSE);
- }
- }
-
- LLVertexBuffer::unbind();
- LLVertexBuffer::unbind();
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- LLGLState::checkClientArrays();
- }
- void LLHUDText::shiftAll(const LLVector3& offset)
- {
- TextObjectIterator text_it;
- for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
- {
- LLHUDText *textp = text_it->get();
- textp->shift(offset);
- }
- }
- void LLHUDText::shift(const LLVector3& offset)
- {
- mPositionAgent += offset;
- }
- //static
- void LLHUDText::addPickable(std::set<LLViewerObject*> &pick_list)
- {
- //this might put an object on the pick list a second time, overriding it's mGLName, which is ok
- // *FIX: we should probably cull against pick frustum
- VisibleTextObjectIterator text_it;
- for (text_it = sVisibleTextObjects.begin(); text_it != sVisibleTextObjects.end(); ++text_it)
- {
- if (!(*text_it)->mUseBubble)
- {
- continue;
- }
- pick_list.insert((*text_it)->mSourceObject);
- }
- }
- //static
- // called when UI scale changes, to flush font width caches
- void LLHUDText::reshape()
- {
- TextObjectIterator text_it;
- for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
- {
- LLHUDText* textp = (*text_it);
- std::vector<LLHUDTextSegment>::iterator segment_iter;
- for (segment_iter = textp->mTextSegments.begin();
- segment_iter != textp->mTextSegments.end(); ++segment_iter )
- {
- segment_iter->clearFontWidthMap();
- }
- for(segment_iter = textp->mLabelSegments.begin();
- segment_iter != textp->mLabelSegments.end(); ++segment_iter )
- {
- segment_iter->clearFontWidthMap();
- }
- }
- }
- //============================================================================
- F32 LLHUDText::LLHUDTextSegment::getWidth(const LLFontGL* font)
- {
- std::map<const LLFontGL*, F32>::iterator iter = mFontWidthMap.find(font);
- if (iter != mFontWidthMap.end())
- {
- return iter->second;
- }
- else
- {
- F32 width = font->getWidthF32(mText.c_str());
- mFontWidthMap[font] = width;
- return width;
- }
- }