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+/**
+ * @file llbadge.cpp
+ * @brief Implementation for badges
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#define LLBADGE_CPP
+#include "llbadge.h"
+
+#include "llscrollcontainer.h"
+#include "lluictrlfactory.h"
+
+
+static LLDefaultChildRegistry::Register<LLBadge> r("badge");
+
+static const S32 BADGE_OFFSET_NOT_SPECIFIED = 0x7FFFFFFF;
+
+// Compiler optimization, generate extern template
+template class LLBadge* LLView::getChild<class LLBadge>(const std::string& name, BOOL recurse) const;
+
+
+LLBadge::Params::Params()
+ : image("image")
+ , border_image("border_image")
+ , border_color("border_color")
+ , image_color("image_color")
+ , label("label")
+ , label_color("label_color")
+ , label_offset_horiz("label_offset_horiz")
+ , label_offset_vert("label_offset_vert")
+ , location("location", LLRelPos::TOP_LEFT)
+ , location_offset_hcenter("location_offset_hcenter")
+ , location_offset_vcenter("location_offset_vcenter")
+ , location_percent_hcenter("location_percent_hcenter")
+ , location_percent_vcenter("location_percent_vcenter")
+ , padding_horiz("padding_horiz")
+ , padding_vert("padding_vert")
+{}
+
+bool LLBadge::Params::equals(const Params& a) const
+{
+ bool comp = true;
+
+ // skip owner in comparison on purpose
+
+ comp &= (border_image() == a.border_image());
+ comp &= (border_color() == a.border_color());
+ comp &= (image() == a.image());
+ comp &= (image_color() == a.image_color());
+ comp &= (label() == a.label());
+ comp &= (label_color() == a.label_color());
+ comp &= (label_offset_horiz() == a.label_offset_horiz());
+ comp &= (label_offset_vert() == a.label_offset_vert());
+ comp &= (location() == a.location());
+ comp &= (location_offset_hcenter() == a.location_offset_hcenter());
+ comp &= (location_offset_vcenter() == a.location_offset_vcenter());
+ comp &= (location_percent_hcenter() == a.location_percent_hcenter());
+ comp &= (location_percent_vcenter() == a.location_percent_vcenter());
+ comp &= (padding_horiz() == a.padding_horiz());
+ comp &= (padding_vert() == a.padding_vert());
+
+ return comp;
+}
+
+LLBadge::LLBadge(const LLBadge::Params& p)
+ : LLUICtrl(p)
+ , mOwner(p.owner)
+ , mBorderImage(p.border_image)
+ , mBorderColor(p.border_color)
+ , mGLFont(p.font)
+ , mImage(p.image)
+ , mImageColor(p.image_color)
+ , mLabel(p.label)
+ , mLabelColor(p.label_color)
+ , mLabelOffsetHoriz(p.label_offset_horiz)
+ , mLabelOffsetVert(p.label_offset_vert)
+ , mLocation(p.location)
+ , mLocationOffsetHCenter(BADGE_OFFSET_NOT_SPECIFIED)
+ , mLocationOffsetVCenter(BADGE_OFFSET_NOT_SPECIFIED)
+ , mLocationPercentHCenter(0.5f)
+ , mLocationPercentVCenter(0.5f)
+ , mPaddingHoriz(p.padding_horiz)
+ , mPaddingVert(p.padding_vert)
+ , mParentScroller(NULL)
+{
+ if (mImage.isNull())
+ {
+ llwarns << "Badge: " << getName() << " with no image!" << llendl;
+ }
+
+ if (p.location_offset_hcenter.isProvided())
+ {
+ mLocationOffsetHCenter = p.location_offset_hcenter();
+ }
+
+ if (p.location_offset_vcenter.isProvided())
+ {
+ mLocationOffsetVCenter = p.location_offset_vcenter();
+ }
+
+ //
+ // The following logic is to set the mLocationPercentHCenter and mLocationPercentVCenter
+ // based on the Location enum and our horizontal and vertical location percentages. The
+ // draw code then uses this on the owner rectangle to compute the screen location for
+ // the badge.
+ //
+
+ if (!LLRelPos::IsCenter(mLocation))
+ {
+ F32 h_center = p.location_percent_hcenter * 0.01f;
+ F32 v_center = p.location_percent_vcenter * 0.01f;
+
+ if (LLRelPos::IsRight(mLocation))
+ {
+ mLocationPercentHCenter = 0.5f * (1.0f + h_center);
+ }
+ else if (LLRelPos::IsLeft(mLocation))
+ {
+ mLocationPercentHCenter = 0.5f * (1.0f - h_center);
+ }
+
+ if (LLRelPos::IsTop(mLocation))
+ {
+ mLocationPercentVCenter = 0.5f * (1.0f + v_center);
+ }
+ else if (LLRelPos::IsBottom(mLocation))
+ {
+ mLocationPercentVCenter = 0.5f * (1.0f - v_center);
+ }
+ }
+}
+
+LLBadge::~LLBadge()
+{
+}
+
+bool LLBadge::addToView(LLView * view)
+{
+ bool child_added = view->addChild(this);
+
+ if (child_added)
+ {
+ setShape(view->getLocalRect());
+
+ // Find a parent scroll container, if there is one in case we need it for positioning
+
+ LLView * parent = mOwner.get();
+
+ while ((parent != NULL) && ((mParentScroller = dynamic_cast<LLScrollContainer *>(parent)) == NULL))
+ {
+ parent = parent->getParent();
+ }
+ }
+
+ return child_added;
+}
+
+void LLBadge::setLabel(const LLStringExplicit& label)
+{
+ mLabel = label;
+}
+
+//
+// This is a fallback function to render a rectangle for badges without a valid image
+//
+void renderBadgeBackground(F32 centerX, F32 centerY, F32 width, F32 height, const LLColor4U &color)
+{
+ gGL.pushUIMatrix();
+ gGL.loadUIIdentity();
+ gGL.setSceneBlendType(LLRender::BT_REPLACE);
+ gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+
+ gGL.color4ubv(color.mV);
+ gGL.texCoord2i(0, 0);
+
+ F32 x = LLFontGL::sCurOrigin.mX + centerX - width * 0.5f;
+ F32 y = LLFontGL::sCurOrigin.mY + centerY - height * 0.5f;
+
+ LLRectf screen_rect(llround(x),
+ llround(y),
+ llround(x) + width,
+ llround(y) + height);
+
+ LLVector3 vertices[4];
+ vertices[0] = LLVector3(screen_rect.mRight, screen_rect.mTop, 1.0f);
+ vertices[1] = LLVector3(screen_rect.mLeft, screen_rect.mTop, 1.0f);
+ vertices[2] = LLVector3(screen_rect.mLeft, screen_rect.mBottom, 1.0f);
+ vertices[3] = LLVector3(screen_rect.mRight, screen_rect.mBottom, 1.0f);
+
+ gGL.begin(LLRender::QUADS);
+ {
+ gGL.vertexBatchPreTransformed(vertices, 4);
+ }
+ gGL.end();
+
+ gGL.popUIMatrix();
+}
+
+
+// virtual
+void LLBadge::draw()
+{
+ if (!mLabel.empty())
+ {
+ LLView* owner_view = mOwner.get();
+
+ if (owner_view)
+ {
+ //
+ // Calculate badge size based on label text
+ //
+
+ LLWString badge_label_wstring = mLabel;
+
+ S32 badge_label_begin_offset = 0;
+ S32 badge_char_length = S32_MAX;
+ S32 badge_pixel_length = S32_MAX;
+ F32 *right_position_out = NULL;
+ BOOL do_not_use_ellipses = false;
+
+ F32 badge_width = (2.0f * mPaddingHoriz) +
+ mGLFont->getWidthF32(badge_label_wstring.c_str(), badge_label_begin_offset, badge_char_length);
+
+ F32 badge_height = (2.0f * mPaddingVert) + mGLFont->getLineHeight();
+
+ //
+ // Calculate badge position based on owner
+ //
+
+ LLRect owner_rect;
+ owner_view->localRectToOtherView(owner_view->getLocalRect(), & owner_rect, this);
+
+ S32 location_offset_horiz = mLocationOffsetHCenter;
+ S32 location_offset_vert = mLocationOffsetVCenter;
+
+ // If we're in a scroll container, do some math to keep us in the same place on screen if applicable
+ if (mParentScroller != NULL)
+ {
+ LLRect visibleRect = mParentScroller->getVisibleContentRect();
+
+ if (mLocationOffsetHCenter != BADGE_OFFSET_NOT_SPECIFIED)
+ {
+ if (LLRelPos::IsRight(mLocation))
+ {
+ location_offset_horiz += visibleRect.mRight;
+ }
+ else if (LLRelPos::IsLeft(mLocation))
+ {
+ location_offset_horiz += visibleRect.mLeft;
+ }
+ else // center
+ {
+ location_offset_horiz += (visibleRect.mLeft + visibleRect.mRight) / 2;
+ }
+ }
+
+ if (mLocationOffsetVCenter != BADGE_OFFSET_NOT_SPECIFIED)
+ {
+ if (LLRelPos::IsTop(mLocation))
+ {
+ location_offset_vert += visibleRect.mTop;
+ }
+ else if (LLRelPos::IsBottom(mLocation))
+ {
+ location_offset_vert += visibleRect.mBottom;
+ }
+ else // center
+ {
+ location_offset_vert += (visibleRect.mBottom + visibleRect.mTop) / 2;
+ }
+ }
+ }
+
+ F32 badge_center_x;
+ F32 badge_center_y;
+
+ // Compute x position
+ if (mLocationOffsetHCenter == BADGE_OFFSET_NOT_SPECIFIED)
+ {
+ badge_center_x = owner_rect.mLeft + owner_rect.getWidth() * mLocationPercentHCenter;
+ }
+ else
+ {
+ badge_center_x = location_offset_horiz;
+ }
+
+ // Compute y position
+ if (mLocationOffsetVCenter == BADGE_OFFSET_NOT_SPECIFIED)
+ {
+ badge_center_y = owner_rect.mBottom + owner_rect.getHeight() * mLocationPercentVCenter;
+ }
+ else
+ {
+ badge_center_y = location_offset_vert;
+ }
+
+ //
+ // Draw button image, if available.
+ // Otherwise draw basic rectangular button.
+ //
+
+ F32 alpha = getDrawContext().mAlpha;
+
+ if (!mImage.isNull())
+ {
+ F32 badge_x = badge_center_x - badge_width * 0.5f;
+ F32 badge_y = badge_center_y - badge_height * 0.5f;
+
+ mImage->drawSolid((S32) badge_x, (S32) badge_y, (S32) badge_width, (S32) badge_height, mImageColor % alpha);
+
+ if (!mBorderImage.isNull())
+ {
+ mBorderImage->drawSolid((S32) badge_x, (S32) badge_y, (S32) badge_width, (S32) badge_height, mBorderColor % alpha);
+ }
+ }
+ else
+ {
+ lldebugs << "No image for badge " << getName() << " on owner " << owner_view->getName() << llendl;
+
+ renderBadgeBackground(badge_center_x, badge_center_y,
+ badge_width, badge_height,
+ mImageColor % alpha);
+ }
+
+ //
+ // Draw the label
+ //
+
+ mGLFont->render(badge_label_wstring,
+ badge_label_begin_offset,
+ badge_center_x + mLabelOffsetHoriz,
+ badge_center_y + mLabelOffsetVert,
+ mLabelColor % alpha,
+ LLFontGL::HCENTER, LLFontGL::VCENTER, // centered around the position
+ LLFontGL::NORMAL, // normal text (not bold, italics, etc.)
+ LLFontGL::DROP_SHADOW_SOFT,
+ badge_char_length, badge_pixel_length,
+ right_position_out, do_not_use_ellipses);
+ }
+ }
+}
+
+
+namespace LLInitParam
+{
+ void TypeValues<LLRelPos::Location>::declareValues()
+ {
+ declare("bottom", LLRelPos::BOTTOM);
+ declare("bottom_left", LLRelPos::BOTTOM_LEFT);
+ declare("bottom_right", LLRelPos::BOTTOM_RIGHT);
+ declare("center", LLRelPos::CENTER);
+ declare("left", LLRelPos::LEFT);
+ declare("right", LLRelPos::RIGHT);
+ declare("top", LLRelPos::TOP);
+ declare("top_left", LLRelPos::TOP_LEFT);
+ declare("top_right", LLRelPos::TOP_RIGHT);
+ }
+}
+
+
+// eof