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Diffstat (limited to 'indra/llui/llvirtualtrackball.cpp')
| -rw-r--r-- | indra/llui/llvirtualtrackball.cpp | 480 |
1 files changed, 480 insertions, 0 deletions
diff --git a/indra/llui/llvirtualtrackball.cpp b/indra/llui/llvirtualtrackball.cpp new file mode 100644 index 0000000000..723643dd25 --- /dev/null +++ b/indra/llui/llvirtualtrackball.cpp @@ -0,0 +1,480 @@ +/** +* @file LLVirtualTrackball.cpp +* @author Andrey Lihatskiy +* @brief Implementation for LLVirtualTrackball +* +* $LicenseInfo:firstyear=2001&license=viewerlgpl$ +* Second Life Viewer Source Code +* Copyright (C) 2018, 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 +* $/LicenseInfo$ +*/ + +// A control for positioning the sun and the moon in the celestial sphere. + +#include "linden_common.h" +#include "llvirtualtrackball.h" +#include "llstring.h" +#include "llrect.h" +#include "lluictrlfactory.h" +#include "llrender.h" + +// Globals +static LLDefaultChildRegistry::Register<LLVirtualTrackball> register_virtual_trackball("sun_moon_trackball"); + +const LLVector3 VectorZero(1.0f, 0.0f, 0.0f); + +LLVirtualTrackball::Params::Params() + : border("border"), + image_moon_back("image_moon_back"), + image_moon_front("image_moon_front"), + image_sphere("image_sphere"), + image_sun_back("image_sun_back"), + image_sun_front("image_sun_front"), + btn_rotate_top("button_rotate_top"), + btn_rotate_bottom("button_rotate_bottom"), + btn_rotate_left("button_rotate_left"), + btn_rotate_right("button_rotate_right"), + thumb_mode("thumb_mode"), + lbl_N("labelN"), + lbl_S("labelS"), + lbl_W("labelW"), + lbl_E("labelE"), + increment_angle_mouse("increment_angle_mouse", 0.5f), + increment_angle_btn("increment_angle_btn", 3.0f) +{ +} + +LLVirtualTrackball::LLVirtualTrackball(const LLVirtualTrackball::Params& p) + : LLUICtrl(p), + mImgMoonBack(p.image_moon_back), + mImgMoonFront(p.image_moon_front), + mImgSunBack(p.image_sun_back), + mImgSunFront(p.image_sun_front), + mImgSphere(p.image_sphere), + mThumbMode(p.thumb_mode() == "moon" ? ThumbMode::MOON : ThumbMode::SUN), + mIncrementMouse(DEG_TO_RAD * p.increment_angle_mouse()), + mIncrementBtn(DEG_TO_RAD * p.increment_angle_btn()) +{ + LLRect border_rect = getLocalRect(); + S32 centerX = border_rect.getCenterX(); + S32 centerY = border_rect.getCenterY(); + U32 btn_size = 32; // width & height + U32 axis_offset_lt = 16; // offset from the axis for left/top sides + U32 axis_offset_rb = btn_size - axis_offset_lt; // and for right/bottom + + LLViewBorder::Params border = p.border; + border.rect(border_rect); + mBorder = LLUICtrlFactory::create<LLViewBorder>(border); + addChild(mBorder); + + + LLButton::Params btn_rt = p.btn_rotate_top; + btn_rt.rect(LLRect(centerX - axis_offset_lt, border_rect.mTop, centerX + axis_offset_rb, border_rect.mTop - btn_size)); + btn_rt.click_callback.function(boost::bind(&LLVirtualTrackball::onRotateTopClick, this)); + btn_rt.mouse_held_callback.function(boost::bind(&LLVirtualTrackball::onRotateTopClick, this)); + btn_rt.mouseenter_callback.function(boost::bind(&LLVirtualTrackball::onRotateTopMouseEnter, this)); + mBtnRotateTop = LLUICtrlFactory::create<LLButton>(btn_rt); + addChild(mBtnRotateTop); + + LLTextBox::Params lbl_N = p.lbl_N; + LLRect rect_N = btn_rt.rect; + //rect_N.translate(btn_rt.rect().getWidth(), 0); + lbl_N.rect = rect_N; + lbl_N.initial_value(lbl_N.label()); + mLabelN = LLUICtrlFactory::create<LLTextBox>(lbl_N); + addChild(mLabelN); + + + LLButton::Params btn_rr = p.btn_rotate_right; + btn_rr.rect(LLRect(border_rect.mRight - btn_size, centerY + axis_offset_lt, border_rect.mRight, centerY - axis_offset_rb)); + btn_rr.click_callback.function(boost::bind(&LLVirtualTrackball::onRotateRightClick, this)); + btn_rr.mouse_held_callback.function(boost::bind(&LLVirtualTrackball::onRotateRightClick, this)); + btn_rr.mouseenter_callback.function(boost::bind(&LLVirtualTrackball::onRotateRightMouseEnter, this)); + mBtnRotateRight = LLUICtrlFactory::create<LLButton>(btn_rr); + addChild(mBtnRotateRight); + + LLTextBox::Params lbl_E = p.lbl_E; + LLRect rect_E = btn_rr.rect; + //rect_E.translate(0, -1 * btn_rr.rect().getHeight()); + lbl_E.rect = rect_E; + lbl_E.initial_value(lbl_E.label()); + mLabelE = LLUICtrlFactory::create<LLTextBox>(lbl_E); + addChild(mLabelE); + + + LLButton::Params btn_rb = p.btn_rotate_bottom; + btn_rb.rect(LLRect(centerX - axis_offset_lt, border_rect.mBottom + btn_size, centerX + axis_offset_rb, border_rect.mBottom)); + btn_rb.click_callback.function(boost::bind(&LLVirtualTrackball::onRotateBottomClick, this)); + btn_rb.mouse_held_callback.function(boost::bind(&LLVirtualTrackball::onRotateBottomClick, this)); + btn_rb.mouseenter_callback.function(boost::bind(&LLVirtualTrackball::onRotateBottomMouseEnter, this)); + mBtnRotateBottom = LLUICtrlFactory::create<LLButton>(btn_rb); + addChild(mBtnRotateBottom); + + LLTextBox::Params lbl_S = p.lbl_S; + LLRect rect_S = btn_rb.rect; + //rect_S.translate(btn_rb.rect().getWidth(), 0); + lbl_S.rect = rect_S; + lbl_S.initial_value(lbl_S.label()); + mLabelS = LLUICtrlFactory::create<LLTextBox>(lbl_S); + addChild(mLabelS); + + + LLButton::Params btn_rl = p.btn_rotate_left; + btn_rl.rect(LLRect(border_rect.mLeft, centerY + axis_offset_lt, border_rect.mLeft + btn_size, centerY - axis_offset_rb)); + btn_rl.click_callback.function(boost::bind(&LLVirtualTrackball::onRotateLeftClick, this)); + btn_rl.mouse_held_callback.function(boost::bind(&LLVirtualTrackball::onRotateLeftClick, this)); + btn_rl.mouseenter_callback.function(boost::bind(&LLVirtualTrackball::onRotateLeftMouseEnter, this)); + mBtnRotateLeft = LLUICtrlFactory::create<LLButton>(btn_rl); + addChild(mBtnRotateLeft); + + LLTextBox::Params lbl_W = p.lbl_W; + LLRect rect_W = btn_rl.rect; + //rect_W.translate(0, -1* btn_rl.rect().getHeight()); + lbl_W.rect = rect_W; + lbl_W.initial_value(lbl_W.label()); + mLabelW = LLUICtrlFactory::create<LLTextBox>(lbl_W); + addChild(mLabelW); + + + LLPanel::Params touch_area; + touch_area.rect = LLRect(centerX - mImgSphere->getWidth() / 2, + centerY + mImgSphere->getHeight() / 2, + centerX + mImgSphere->getWidth() / 2, + centerY - mImgSphere->getHeight() / 2); + mTouchArea = LLUICtrlFactory::create<LLPanel>(touch_area); + addChild(mTouchArea); +} + +LLVirtualTrackball::~LLVirtualTrackball() +{ +} + +BOOL LLVirtualTrackball::postBuild() +{ + return TRUE; +} + + +void LLVirtualTrackball::drawThumb(S32 x, S32 y, ThumbMode mode, bool upperHemi) +{ + LLUIImage* thumb; + if (mode == ThumbMode::SUN) + { + if (upperHemi) + { + thumb = mImgSunFront; + } + else + { + thumb = mImgSunBack; + } + } + else + { + if (upperHemi) + { + thumb = mImgMoonFront; + } + else + { + thumb = mImgMoonBack; + } + } + thumb->draw(LLRect(x - thumb->getWidth() / 2, + y + thumb->getHeight() / 2, + x + thumb->getWidth() / 2, + y - thumb->getHeight() / 2)); +} + +bool LLVirtualTrackball::pointInTouchCircle(S32 x, S32 y) const +{ + S32 centerX = mTouchArea->getRect().getCenterX(); + S32 centerY = mTouchArea->getRect().getCenterY(); + + bool in_circle = pow(x - centerX, 2) + pow(y - centerY, 2) <= pow(mTouchArea->getRect().getWidth() / 2, 2); + return in_circle; +} + +void LLVirtualTrackball::draw() +{ + LLVector3 draw_point = VectorZero * mValue; + + S32 halfwidth = mTouchArea->getRect().getWidth() / 2; + S32 halfheight = mTouchArea->getRect().getHeight() / 2; + draw_point.mV[VX] = (draw_point.mV[VX] + 1.0) * halfwidth + mTouchArea->getRect().mLeft; + draw_point.mV[VY] = (draw_point.mV[VY] + 1.0) * halfheight + mTouchArea->getRect().mBottom; + bool upper_hemisphere = (draw_point.mV[VZ] >= 0.f); + + mImgSphere->draw(mTouchArea->getRect(), upper_hemisphere ? UI_VERTEX_COLOR : UI_VERTEX_COLOR % 0.5f); + drawThumb(draw_point.mV[VX], draw_point.mV[VY], mThumbMode, upper_hemisphere); + + + if (LLView::sDebugRects) + { + gGL.color4fv(LLColor4::red.mV); + gl_circle_2d(mTouchArea->getRect().getCenterX(), mTouchArea->getRect().getCenterY(), mImgSphere->getWidth() / 2, 60, false); + gl_circle_2d(draw_point.mV[VX], draw_point.mV[VY], mImgSunFront->getWidth() / 2, 12, false); + } + + // hide the direction labels when disabled + BOOL enabled = isInEnabledChain(); + mLabelN->setVisible(enabled); + mLabelE->setVisible(enabled); + mLabelS->setVisible(enabled); + mLabelW->setVisible(enabled); + + LLView::draw(); +} + +void LLVirtualTrackball::onRotateTopClick() +{ + if (getEnabled()) + { + LLQuaternion delta; + delta.setAngleAxis(mIncrementBtn, 1, 0, 0); + mValue *= delta; + setValueAndCommit(mValue); + + make_ui_sound("UISndClick"); + } +} + +void LLVirtualTrackball::onRotateBottomClick() +{ + if (getEnabled()) + { + LLQuaternion delta; + delta.setAngleAxis(mIncrementBtn, -1, 0, 0); + mValue *= delta; + setValueAndCommit(mValue); + + make_ui_sound("UISndClick"); + } +} + +void LLVirtualTrackball::onRotateLeftClick() +{ + if (getEnabled()) + { + LLQuaternion delta; + delta.setAngleAxis(mIncrementBtn, 0, 1, 0); + mValue *= delta; + setValueAndCommit(mValue); + + make_ui_sound("UISndClick"); + } +} + +void LLVirtualTrackball::onRotateRightClick() +{ + if (getEnabled()) + { + LLQuaternion delta; + delta.setAngleAxis(mIncrementBtn, 0, -1, 0); + mValue *= delta; + setValueAndCommit(mValue); + + make_ui_sound("UISndClick"); + } +} + +void LLVirtualTrackball::onRotateTopMouseEnter() +{ + mBtnRotateTop->setHighlight(true); +} + +void LLVirtualTrackball::onRotateBottomMouseEnter() +{ + mBtnRotateBottom->setHighlight(true); +} + +void LLVirtualTrackball::onRotateLeftMouseEnter() +{ + mBtnRotateLeft->setHighlight(true); +} + +void LLVirtualTrackball::onRotateRightMouseEnter() +{ + mBtnRotateRight->setHighlight(true); +} + +void LLVirtualTrackball::setValue(const LLSD& value) +{ + if (value.isArray() && value.size() == 4) + { + mValue.setValue(value); + } +} + +void LLVirtualTrackball::setRotation(const LLQuaternion &value) +{ + mValue = value; +} + +void LLVirtualTrackball::setValue(F32 x, F32 y, F32 z, F32 w) +{ + mValue.set(x, y, z, w); +} + +void LLVirtualTrackball::setValueAndCommit(const LLQuaternion &value) +{ + mValue = value; + onCommit(); +} + +LLSD LLVirtualTrackball::getValue() const +{ + return mValue.getValue(); +} + +LLQuaternion LLVirtualTrackball::getRotation() const +{ + return mValue; +} + +BOOL LLVirtualTrackball::handleHover(S32 x, S32 y, MASK mask) +{ + if (hasMouseCapture()) + { + if (mDragMode == DRAG_SCROLL) + { // trackball (move to roll) mode + LLQuaternion delta; + + F32 rotX = x - mPrevX; + F32 rotY = y - mPrevY; + + if (abs(rotX) > 1) + { + F32 direction = (rotX < 0) ? -1 : 1; + delta.setAngleAxis(mIncrementMouse * abs(rotX), 0, direction, 0); // changing X - rotate around Y axis + mValue *= delta; + } + + if (abs(rotY) > 1) + { + F32 direction = (rotY < 0) ? 1 : -1; // reverse for Y (value increases from bottom to top) + delta.setAngleAxis(mIncrementMouse * abs(rotY), direction, 0, 0); // changing Y - rotate around X axis + mValue *= delta; + } + } + else + { // set on click mode + if (!pointInTouchCircle(x, y)) + { + return TRUE; // don't drag outside the circle + } + + F32 radius = mTouchArea->getRect().getWidth() / 2; + F32 xx = x - mTouchArea->getRect().getCenterX(); + F32 yy = y - mTouchArea->getRect().getCenterY(); + F32 dist = sqrt(pow(xx, 2) + pow(yy, 2)); + + F32 azimuth = llclamp(acosf(xx / dist), 0.0f, F_PI); + F32 altitude = llclamp(acosf(dist / radius), 0.0f, F_PI_BY_TWO); + + if (yy < 0) + { + azimuth = F_TWO_PI - azimuth; + } + + LLVector3 draw_point = VectorZero * mValue; + if (draw_point.mV[VZ] >= 0.f) + { + if (is_approx_zero(altitude)) // don't change the hemisphere + { + altitude = F_APPROXIMATELY_ZERO; + } + altitude *= -1; + } + + mValue.setAngleAxis(altitude, 0, 1, 0); + LLQuaternion az_quat; + az_quat.setAngleAxis(azimuth, 0, 0, 1); + mValue *= az_quat; + } + + mPrevX = x; + mPrevY = y; + onCommit(); + } + return TRUE; +} + +BOOL LLVirtualTrackball::handleMouseUp(S32 x, S32 y, MASK mask) +{ + if (hasMouseCapture()) + { + mPrevX = 0; + mPrevY = 0; + gFocusMgr.setMouseCapture(NULL); + make_ui_sound("UISndClickRelease"); + } + return LLView::handleMouseUp(x, y, mask); +} + +BOOL LLVirtualTrackball::handleMouseDown(S32 x, S32 y, MASK mask) +{ + if (pointInTouchCircle(x, y)) + { + mPrevX = x; + mPrevY = y; + gFocusMgr.setMouseCapture(this); + mDragMode = (mask == MASK_CONTROL) ? DRAG_SCROLL : DRAG_SET; + make_ui_sound("UISndClick"); + } + return LLView::handleMouseDown(x, y, mask); +} + +BOOL LLVirtualTrackball::handleRightMouseDown(S32 x, S32 y, MASK mask) +{ + if (pointInTouchCircle(x, y)) + { + + //make_ui_sound("UISndClick"); + } + return LLView::handleRightMouseDown(x, y, mask); +} + +BOOL LLVirtualTrackball::handleKeyHere(KEY key, MASK mask) +{ + BOOL handled = FALSE; + switch (key) + { + case KEY_DOWN: + onRotateTopClick(); + handled = TRUE; + break; + case KEY_LEFT: + onRotateRightClick(); + handled = TRUE; + break; + case KEY_UP: + onRotateBottomClick(); + handled = TRUE; + break; + case KEY_RIGHT: + onRotateLeftClick(); + handled = TRUE; + break; + default: + break; + } + return handled; +} + |