// virtual
void LLButton::draw()
{
F32 alpha = getDrawContext().mAlpha;
bool flash = FALSE;
static LLUICachedControl<F32> button_flash_rate("ButtonFlashRate", 0);
static LLUICachedControl<S32> button_flash_count("ButtonFlashCount", 0);
if( mFlashing )
{
F32 elapsed = mFlashingTimer.getElapsedTimeF32();
S32 flash_count = S32(elapsed * button_flash_rate * 2.f);
// flash on or off?
flash = (flash_count % 2 == 0) || flash_count > S32((F32)button_flash_count * 2.f);
}
bool pressed_by_keyboard = FALSE;
if (hasFocus())
{
pressed_by_keyboard = gKeyboard->getKeyDown(' ') || (mCommitOnReturn && gKeyboard->getKeyDown(KEY_RETURN));
}
// Unselected image assignments
bool enabled = isInEnabledChain();
bool pressed = pressed_by_keyboard
|| (hasMouseCapture() && mMouseOver)
|| mForcePressedState;
bool selected = getToggleState();
bool use_glow_effect = FALSE;
LLColor4 glow_color = LLColor4::white;
LLRender::eBlendType glow_type = LLRender::BT_ADD_WITH_ALPHA;
LLUIImage* imagep = NULL;
if (pressed)
{
imagep = selected ? mImagePressedSelected : mImagePressed;
}
else if ( mNeedsHighlight )
{
if (selected)
{
if (mImageHoverSelected)
{
imagep = mImageHoverSelected;
}
else
{
imagep = mImageSelected;
use_glow_effect = TRUE;
}
}
else
{
if (mImageHoverUnselected)
{
imagep = mImageHoverUnselected;
}
else
{
imagep = mImageUnselected;
use_glow_effect = TRUE;
}
}
}
else
{
imagep = selected ? mImageSelected : mImageUnselected;
}
// Override if more data is available
// HACK: Use gray checked state to mean either:
// enabled and tentative
// or
// disabled but checked
if (!mImageDisabledSelected.isNull()
&&
( (enabled && getTentative())
|| (!enabled && selected ) ) )
{
imagep = mImageDisabledSelected;
}
else if (!mImageDisabled.isNull()
&& !enabled
&& !selected)
{
imagep = mImageDisabled;
}
if (mFlashing)
{
// if button should flash and we have icon for flashing, use it as image for button
if(flash && mImageFlash)
{
// setting flash to false to avoid its further influence on glow
flash = false;
imagep = mImageFlash;
}
// else use usual flashing via flash_color
else
{
LLColor4 flash_color = mFlashBgColor.get();
use_glow_effect = TRUE;
glow_type = LLRender::BT_ALPHA; // blend the glow
if (mNeedsHighlight) // highlighted AND flashing
glow_color = (glow_color*0.5f + flash_color*0.5f) % 2.0f; // average between flash and highlight colour, with sum of the opacity
else
glow_color = flash_color;
}
}
if (mNeedsHighlight && !imagep)
{
use_glow_effect = TRUE;
}
// Figure out appropriate color for the text
LLColor4 label_color;
// label changes when button state changes, not when pressed
if ( enabled )
{
if ( getToggleState() )
{
label_color = mSelectedLabelColor.get();
}
else
{
label_color = mUnselectedLabelColor.get();
}
}
else
{
if ( getToggleState() )
{
label_color = mDisabledSelectedLabelColor.get();
}
else
{
label_color = mDisabledLabelColor.get();
}
}
// Unselected label assignments
LLWString label;
if( getToggleState() )
{
label = mSelectedLabel;
}
else
{
label = mUnselectedLabel;
}
// overlay with keyboard focus border
if (hasFocus())
{
F32 lerp_amt = gFocusMgr.getFocusFlashAmt();
drawBorder(imagep, gFocusMgr.getFocusColor() % alpha, llround(lerp(1.f, 3.f, lerp_amt)));
}
if (use_glow_effect)
{
mCurGlowStrength = lerp(mCurGlowStrength,
mFlashing ? (flash? 1.0 : 0.0)
: mHoverGlowStrength,
LLCriticalDamp::getInterpolant(0.05f));
}
else
{
mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLCriticalDamp::getInterpolant(0.05f));
}
// Draw button image, if available.
// Otherwise draw basic rectangular button.
if (imagep != NULL)
{
// apply automatic 50% alpha fade to disabled image
LLColor4 disabled_color = mFadeWhenDisabled ? mDisabledImageColor.get() % 0.5f : mDisabledImageColor.get();
if ( mScaleImage)
{
imagep->draw(getLocalRect(), (enabled ? mImageColor.get() : disabled_color) % alpha );
if (mCurGlowStrength > 0.01f)
{
gGL.setSceneBlendType(glow_type);
imagep->drawSolid(0, 0, getRect().getWidth(), getRect().getHeight(), glow_color % (mCurGlowStrength * alpha));
gGL.setSceneBlendType(LLRender::BT_ALPHA);
}
}
else
{
imagep->draw(0, 0, (enabled ? mImageColor.get() : disabled_color) % alpha );
if (mCurGlowStrength > 0.01f)
{
gGL.setSceneBlendType(glow_type);
imagep->drawSolid(0, 0, glow_color % (mCurGlowStrength * alpha));
gGL.setSceneBlendType(LLRender::BT_ALPHA);
}
}
}
else
{
// no image
lldebugs << "No image for button " << getName() << llendl;
// draw it in pink so we can find it
gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0, LLColor4::pink1 % alpha, FALSE);
}
// let overlay image and text play well together
S32 text_left = mLeftHPad;
S32 text_right = getRect().getWidth() - mRightHPad;
S32 text_width = getRect().getWidth() - mLeftHPad - mRightHPad;
// draw overlay image
if (mImageOverlay.notNull())
{
// get max width and height (discard level 0)
S32 overlay_width = mImageOverlay->getWidth();
S32 overlay_height = mImageOverlay->getHeight();
F32 scale_factor = llmin((F32)getRect().getWidth() / (F32)overlay_width, (F32)getRect().getHeight() / (F32)overlay_height, 1.f);
overlay_width = llround((F32)overlay_width * scale_factor);
overlay_height = llround((F32)overlay_height * scale_factor);
S32 center_x = getLocalRect().getCenterX();
S32 center_y = getLocalRect().getCenterY();
//FUGLY HACK FOR "DEPRESSED" BUTTONS
if (pressed)
{
center_y--;
center_x++;
}
center_y += (mImageOverlayBottomPad - mImageOverlayTopPad);
// fade out overlay images on disabled buttons
LLColor4 overlay_color = mImageOverlayColor.get();
if (!enabled)
{
overlay_color.mV[VALPHA] = 0.5f;
}
overlay_color.mV[VALPHA] *= alpha;
switch(mImageOverlayAlignment)
{
case LLFontGL::LEFT:
text_left += overlay_width + mImgOverlayLabelSpace;
mImageOverlay->draw(
mLeftHPad,
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
case LLFontGL::HCENTER:
mImageOverlay->draw(
center_x - (overlay_width / 2),
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
case LLFontGL::RIGHT:
text_right -= overlay_width + mImgOverlayLabelSpace;
mImageOverlay->draw(
getRect().getWidth() - mRightHPad - overlay_width,
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
default:
// draw nothing
break;
}
}
// Draw label
if( !label.empty() )
{
LLWStringUtil::trim(label);
S32 x;
switch( mHAlign )
{
case LLFontGL::RIGHT:
x = text_right;
break;
case LLFontGL::HCENTER:
x = text_left + (text_width / 2);
break;
case LLFontGL::LEFT:
default:
x = text_left;
break;
}
S32 y_offset = 2 + (getRect().getHeight() - 20)/2;
if (pressed)
{
y_offset--;
x++;
}
// *NOTE: mantipov: before mUseEllipses is implemented in EXT-279 U32_MAX has been passed as
// max_chars.
// LLFontGL::render expects S32 max_chars variable but process in a separate way -1 value.
// Due to U32_MAX is equal to S32 -1 value I have rest this value for non-ellipses mode.
// Not sure if it is really needed. Probably S32_MAX should be always passed as max_chars.
mLastDrawCharsCount = mGLFont->render(label, 0,
(F32)x,
(F32)(mBottomVPad + y_offset),
label_color % alpha,
mHAlign, LLFontGL::BOTTOM,
LLFontGL::NORMAL,
mDropShadowedText ? LLFontGL::DROP_SHADOW_SOFT : LLFontGL::NO_SHADOW,
S32_MAX, text_width,
NULL, mUseEllipses);
}
LLUICtrl::draw();
}
// virtual
void LLButton::draw()
{
static LLCachedControl<bool> sEnableButtonFlashing(*LLUI::sSettingGroups["config"], "EnableButtonFlashing", true);
F32 alpha = mUseDrawContextAlpha ? getDrawContext().mAlpha : getCurrentTransparency();
bool pressed_by_keyboard = FALSE;
if (hasFocus())
{
pressed_by_keyboard = gKeyboard->getKeyDown(' ') || (mCommitOnReturn && gKeyboard->getKeyDown(KEY_RETURN));
}
bool mouse_pressed_and_over = false;
if (hasMouseCapture())
{
S32 local_mouse_x ;
S32 local_mouse_y;
LLUI::getMousePositionLocal(this, &local_mouse_x, &local_mouse_y);
mouse_pressed_and_over = pointInView(local_mouse_x, local_mouse_y);
}
bool enabled = isInEnabledChain();
bool pressed = pressed_by_keyboard
|| mouse_pressed_and_over
|| mForcePressedState;
bool selected = getToggleState();
bool use_glow_effect = FALSE;
LLColor4 highlighting_color = LLColor4::white;
LLColor4 glow_color = LLColor4::white;
LLRender::eBlendType glow_type = LLRender::BT_ADD_WITH_ALPHA;
LLUIImage* imagep = NULL;
// Cancel sticking of color, if the button is pressed,
// or when a flashing of the previously selected button is ended
if (mFlashingTimer
&& ((selected && !mFlashingTimer->isFlashingInProgress() && !mForceFlashing) || pressed))
{
mFlashing = false;
}
bool flash = mFlashing && sEnableButtonFlashing;
if (pressed && mDisplayPressedState)
{
imagep = selected ? mImagePressedSelected : mImagePressed;
}
else if ( mNeedsHighlight )
{
if (selected)
{
if (mImageHoverSelected)
{
imagep = mImageHoverSelected;
}
else
{
imagep = mImageSelected;
use_glow_effect = TRUE;
}
}
else
{
if (mImageHoverUnselected)
{
imagep = mImageHoverUnselected;
}
else
{
imagep = mImageUnselected;
use_glow_effect = TRUE;
}
}
}
else
{
imagep = selected ? mImageSelected : mImageUnselected;
}
// Override if more data is available
// HACK: Use gray checked state to mean either:
// enabled and tentative
// or
// disabled but checked
if (!mImageDisabledSelected.isNull()
&&
( (enabled && getTentative())
|| (!enabled && selected ) ) )
{
imagep = mImageDisabledSelected;
}
else if (!mImageDisabled.isNull()
&& !enabled
&& !selected)
{
imagep = mImageDisabled;
}
if (mFlashing)
{
// if button should flash and we have icon for flashing, use it as image for button
if(flash && mImageFlash)
{
// setting flash to false to avoid its further influence on glow
flash = false;
imagep = mImageFlash;
}
// else use usual flashing via flash_color
else if (mFlashingTimer)
{
LLColor4 flash_color = mFlashBgColor.get();
use_glow_effect = TRUE;
glow_type = LLRender::BT_ALPHA; // blend the glow
if (mFlashingTimer->isCurrentlyHighlighted() || !mFlashingTimer->isFlashingInProgress())
{
glow_color = flash_color;
}
else if (mNeedsHighlight)
{
glow_color = highlighting_color;
}
}
}
if (mNeedsHighlight && !imagep)
{
use_glow_effect = TRUE;
}
// Figure out appropriate color for the text
LLColor4 label_color;
// label changes when button state changes, not when pressed
if ( enabled )
{
if ( getToggleState() )
{
label_color = mSelectedLabelColor.get();
}
else
{
label_color = mUnselectedLabelColor.get();
}
}
else
{
if ( getToggleState() )
{
label_color = mDisabledSelectedLabelColor.get();
}
else
{
label_color = mDisabledLabelColor.get();
}
}
// <FS::ND> Highlight if needed
if( nd::ui::SearchableControl::getHighlighted() )
label_color = nd::ui::SearchableControl::getHighlightColor();
// </FS:ND>
// Unselected label assignments
LLWString label = getCurrentLabel();
// overlay with keyboard focus border
if (hasFocus())
{
F32 lerp_amt = gFocusMgr.getFocusFlashAmt();
drawBorder(imagep, gFocusMgr.getFocusColor() % alpha, ll_round(lerp(1.f, 3.f, lerp_amt)));
}
if (use_glow_effect)
{
mCurGlowStrength = lerp(mCurGlowStrength,
// <FS:Ansariel> Crash fix; Calling setFlashing can cause mFlashing being true while is mFlashingTimer is NULL
//mFlashing ? (mFlashingTimer->isCurrentlyHighlighted() || !mFlashingTimer->isFlashingInProgress() || mNeedsHighlight? 1.0 : 0.0) : mHoverGlowStrength,
(mFlashing && mFlashingTimer) ? (mFlashingTimer->isCurrentlyHighlighted() || !mFlashingTimer->isFlashingInProgress() || mNeedsHighlight? 1.0 : 0.0) : mHoverGlowStrength,
LLSmoothInterpolation::getInterpolant(0.05f));
}
else
{
mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLSmoothInterpolation::getInterpolant(0.05f));
}
// Draw button image, if available.
// Otherwise draw basic rectangular button.
if (imagep != NULL)
{
// apply automatic 50% alpha fade to disabled image
LLColor4 disabled_color = mFadeWhenDisabled ? mDisabledImageColor.get() % 0.5f : mDisabledImageColor.get();
if ( mScaleImage)
{
imagep->draw(getLocalRect(), (enabled ? mImageColor.get() : disabled_color) % alpha );
if (mCurGlowStrength > 0.01f)
{
gGL.setSceneBlendType(glow_type);
imagep->drawSolid(0, 0, getRect().getWidth(), getRect().getHeight(), glow_color % (mCurGlowStrength * alpha));
gGL.setSceneBlendType(LLRender::BT_ALPHA);
}
}
else
{
imagep->draw(0, 0, (enabled ? mImageColor.get() : disabled_color) % alpha );
if (mCurGlowStrength > 0.01f)
{
gGL.setSceneBlendType(glow_type);
imagep->drawSolid(0, 0, glow_color % (mCurGlowStrength * alpha));
gGL.setSceneBlendType(LLRender::BT_ALPHA);
}
}
}
else
{
// no image
LL_DEBUGS() << "No image for button " << getName() << LL_ENDL;
// draw it in pink so we can find it
gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0, LLColor4::pink1 % alpha, FALSE);
}
// let overlay image and text play well together
S32 text_left = mLeftHPad;
S32 text_right = getRect().getWidth() - mRightHPad;
S32 text_width = getRect().getWidth() - mLeftHPad - mRightHPad;
// draw overlay image
if (mImageOverlay.notNull())
{
// get max width and height (discard level 0)
S32 overlay_width;
S32 overlay_height;
getOverlayImageSize(overlay_width, overlay_height);
S32 center_x = getLocalRect().getCenterX();
S32 center_y = getLocalRect().getCenterY();
//FUGLY HACK FOR "DEPRESSED" BUTTONS
if (pressed && mDisplayPressedState)
{
center_y--;
center_x++;
}
center_y += (mImageOverlayBottomPad - mImageOverlayTopPad);
// fade out overlay images on disabled buttons
LLColor4 overlay_color = mImageOverlayColor.get();
if (!enabled)
{
overlay_color = mImageOverlayDisabledColor.get();
}
else if (getToggleState())
{
overlay_color = mImageOverlaySelectedColor.get();
}
overlay_color.mV[VALPHA] *= alpha;
switch(mImageOverlayAlignment)
{
case LLFontGL::LEFT:
text_left += overlay_width + mImgOverlayLabelSpace;
text_width -= overlay_width + mImgOverlayLabelSpace;
mImageOverlay->draw(
mLeftHPad,
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
case LLFontGL::HCENTER:
mImageOverlay->draw(
center_x - (overlay_width / 2),
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
case LLFontGL::RIGHT:
text_right -= overlay_width + mImgOverlayLabelSpace;
text_width -= overlay_width + mImgOverlayLabelSpace;
mImageOverlay->draw(
getRect().getWidth() - mRightHPad - overlay_width,
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
default:
// draw nothing
break;
}
}
// Draw label
if( !label.empty() )
{
LLWStringUtil::trim(label);
S32 x;
switch( mHAlign )
{
case LLFontGL::RIGHT:
x = text_right;
break;
case LLFontGL::HCENTER:
x = text_left + (text_width / 2);
break;
case LLFontGL::LEFT:
default:
x = text_left;
break;
}
S32 y_offset = 2 + (getRect().getHeight() - 20)/2;
if (pressed && mDisplayPressedState)
{
y_offset--;
x++;
}
// *NOTE: mantipov: before mUseEllipses is implemented in EXT-279 U32_MAX has been passed as
// max_chars.
// LLFontGL::render expects S32 max_chars variable but process in a separate way -1 value.
// Due to U32_MAX is equal to S32 -1 value I have rest this value for non-ellipses mode.
// Not sure if it is really needed. Probably S32_MAX should be always passed as max_chars.
mLastDrawCharsCount = mGLFont->render(label, 0,
(F32)x,
(F32)(getRect().getHeight() / 2 + mBottomVPad),
label_color % alpha,
mHAlign, LLFontGL::VCENTER,
LLFontGL::NORMAL,
mDropShadowedText ? LLFontGL::DROP_SHADOW_SOFT : LLFontGL::NO_SHADOW,
S32_MAX, text_width,
NULL, mUseEllipses);
}
// <FS:Zi> Add checkbox control toggle
if(mCheckboxControlPanel)
{
mCheckboxControlPanel->setOrigin(0,0);
mCheckboxControlPanel->reshape(getRect().getWidth(),getRect().getHeight());
mCheckboxControlPanel->draw();
}
// <FS:Zi>
LLUICtrl::draw();
}