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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "GUIFadeLabelControl.h"
#include "GUIMessage.h"
#include "utils/Random.h"
using namespace KODI::GUILIB;
CGUIFadeLabelControl::CGUIFadeLabelControl(int parentID, int controlID, float posX, float posY, float width, float height, const CLabelInfo& labelInfo, bool scrollOut, unsigned int timeToDelayAtEnd, bool resetOnLabelChange, bool randomized)
: CGUIControl(parentID, controlID, posX, posY, width, height), m_label(labelInfo), m_scrollInfo(50, labelInfo.offsetX, labelInfo.scrollSpeed)
, m_textLayout(labelInfo.font, false)
, m_fadeAnim(CAnimation::CreateFader(100, 0, timeToDelayAtEnd, 200))
{
m_currentLabel = 0;
ControlType = GUICONTROL_FADELABEL;
m_scrollOut = scrollOut;
m_fadeAnim.ApplyAnimation();
m_lastLabel = -1;
m_scrollSpeed = labelInfo.scrollSpeed; // save it for later
m_resetOnLabelChange = resetOnLabelChange;
m_shortText = true;
m_scroll = true;
m_randomized = randomized;
}
CGUIFadeLabelControl::CGUIFadeLabelControl(const CGUIFadeLabelControl &from)
: CGUIControl(from), m_infoLabels(from.m_infoLabels), m_label(from.m_label), m_scrollInfo(from.m_scrollInfo), m_textLayout(from.m_textLayout),
m_fadeAnim(from.m_fadeAnim)
{
m_scrollOut = from.m_scrollOut;
m_scrollSpeed = from.m_scrollSpeed;
m_resetOnLabelChange = from.m_resetOnLabelChange;
m_fadeAnim.ApplyAnimation();
m_currentLabel = 0;
m_lastLabel = -1;
ControlType = GUICONTROL_FADELABEL;
m_shortText = from.m_shortText;
m_scroll = from.m_scroll;
m_randomized = from.m_randomized;
m_allLabelsShown = from.m_allLabelsShown;
}
CGUIFadeLabelControl::~CGUIFadeLabelControl(void) = default;
void CGUIFadeLabelControl::SetInfo(const std::vector<GUIINFO::CGUIInfoLabel> &infoLabels)
{
m_lastLabel = -1;
m_infoLabels = infoLabels;
m_allLabelsShown = m_infoLabels.empty();
if (m_randomized)
KODI::UTILS::RandomShuffle(m_infoLabels.begin(), m_infoLabels.end());
}
void CGUIFadeLabelControl::AddLabel(const std::string &label)
{
m_infoLabels.emplace_back(label, "", GetParentID());
m_allLabelsShown = false;
}
void CGUIFadeLabelControl::Process(unsigned int currentTime, CDirtyRegionList &dirtyregions)
{
if (m_infoLabels.empty() || !m_label.font)
{
CGUIControl::Process(currentTime, dirtyregions);
return;
}
if (m_currentLabel >= m_infoLabels.size() )
m_currentLabel = 0;
if (m_textLayout.Update(GetLabel()))
{ // changed label - update our suffix based on length of available text
float width, height;
m_textLayout.GetTextExtent(width, height);
float spaceWidth = m_label.font->GetCharWidth(L' ');
unsigned int numSpaces = (unsigned int)(m_width / spaceWidth) + 1;
if (width < m_width) // append spaces for scrolling
numSpaces += (unsigned int)((m_width - width) / spaceWidth) + 1;
m_shortText = (width + m_label.offsetX) < m_width;
m_scrollInfo.m_suffix.assign(numSpaces, ' ');
if (m_resetOnLabelChange)
{
m_scrollInfo.Reset();
m_fadeAnim.ResetAnimation();
}
MarkDirtyRegion();
}
if (m_shortText && m_infoLabels.size() == 1)
m_allLabelsShown = true;
if (m_currentLabel != m_lastLabel)
{ // new label - reset scrolling
m_scrollInfo.Reset();
m_fadeAnim.QueueAnimation(ANIM_PROCESS_REVERSE);
m_lastLabel = m_currentLabel;
MarkDirtyRegion();
}
if (m_infoLabels.size() > 1 || !m_shortText)
{ // have scrolling text
bool moveToNextLabel = false;
if (!m_scrollOut)
{
if (m_scrollInfo.m_pixelPos + m_width > m_scrollInfo.m_textWidth)
{
if (m_fadeAnim.GetProcess() != ANIM_PROCESS_NORMAL)
m_fadeAnim.QueueAnimation(ANIM_PROCESS_NORMAL);
moveToNextLabel = true;
}
}
else if (m_scrollInfo.m_pixelPos > m_scrollInfo.m_textWidth)
moveToNextLabel = true;
if (m_scrollInfo.m_pixelSpeed || m_fadeAnim.GetState() == ANIM_STATE_IN_PROCESS)
MarkDirtyRegion();
// apply the fading animation
TransformMatrix matrix;
m_fadeAnim.Animate(currentTime, true);
m_fadeAnim.RenderAnimation(matrix);
m_fadeMatrix = CServiceBroker::GetWinSystem()->GetGfxContext().AddTransform(matrix);
if (m_fadeAnim.GetState() == ANIM_STATE_APPLIED)
m_fadeAnim.ResetAnimation();
m_scrollInfo.SetSpeed((m_fadeAnim.GetProcess() == ANIM_PROCESS_NONE) ? m_scrollSpeed : 0);
if (moveToNextLabel)
{ // increment the label and reset scrolling
if (m_fadeAnim.GetProcess() != ANIM_PROCESS_NORMAL)
{
if (++m_currentLabel >= m_infoLabels.size())
{
m_currentLabel = 0;
m_allLabelsShown = true;
}
m_scrollInfo.Reset();
m_fadeAnim.QueueAnimation(ANIM_PROCESS_REVERSE);
}
}
if (m_scroll)
{
m_textLayout.UpdateScrollinfo(m_scrollInfo);
MarkDirtyRegion();
}
CServiceBroker::GetWinSystem()->GetGfxContext().RemoveTransform();
}
CGUIControl::Process(currentTime, dirtyregions);
}
bool CGUIFadeLabelControl::UpdateColors(const CGUIListItem* item)
{
bool changed = CGUIControl::UpdateColors(nullptr);
changed |= m_label.UpdateColors();
return changed;
}
void CGUIFadeLabelControl::Render()
{
if (!m_label.font)
{ // nothing to render
CGUIControl::Render();
return ;
}
float posY = m_posY;
if (m_label.align & XBFONT_CENTER_Y)
posY += m_height * 0.5f;
if (m_infoLabels.size() == 1 && m_shortText)
{ // single label set and no scrolling required - just display
float posX = m_posX + m_label.offsetX;
if (m_label.align & XBFONT_CENTER_X)
posX = m_posX + m_width * 0.5f;
else if (m_label.align & XBFONT_RIGHT)
posX = m_posX + m_width;
m_textLayout.Render(posX, posY, m_label.angle, m_label.textColor, m_label.shadowColor, m_label.align, m_width - m_label.offsetX);
CGUIControl::Render();
return;
}
// render the scrolling text
CServiceBroker::GetWinSystem()->GetGfxContext().SetTransform(m_fadeMatrix);
if (!m_scroll || (!m_scrollOut && m_shortText))
{
float posX = m_posX + m_label.offsetX;
if (m_label.align & XBFONT_CENTER_X)
posX = m_posX + m_width * 0.5f;
else if (m_label.align & XBFONT_RIGHT)
posX = m_posX + m_width;
m_textLayout.Render(posX, posY, 0, m_label.textColor, m_label.shadowColor, m_label.align, m_width);
}
else
m_textLayout.RenderScrolling(m_posX, posY, 0, m_label.textColor, m_label.shadowColor, (m_label.align & ~3), m_width, m_scrollInfo);
CServiceBroker::GetWinSystem()->GetGfxContext().RemoveTransform();
CGUIControl::Render();
}
bool CGUIFadeLabelControl::CanFocus() const
{
return false;
}
bool CGUIFadeLabelControl::OnMessage(CGUIMessage& message)
{
if ( message.GetControlId() == GetID() )
{
if (message.GetMessage() == GUI_MSG_LABEL_ADD)
{
AddLabel(message.GetLabel());
return true;
}
if (message.GetMessage() == GUI_MSG_LABEL_RESET)
{
m_lastLabel = -1;
m_infoLabels.clear();
m_allLabelsShown = true;
m_scrollInfo.Reset();
return true;
}
if (message.GetMessage() == GUI_MSG_LABEL_SET)
{
m_lastLabel = -1;
m_infoLabels.clear();
m_allLabelsShown = true;
m_scrollInfo.Reset();
AddLabel(message.GetLabel());
return true;
}
}
return CGUIControl::OnMessage(message);
}
std::string CGUIFadeLabelControl::GetDescription() const
{
return (m_currentLabel < m_infoLabels.size()) ? m_infoLabels[m_currentLabel].GetLabel(m_parentID) : "";
}
std::string CGUIFadeLabelControl::GetLabel()
{
if (m_currentLabel > m_infoLabels.size())
m_currentLabel = 0;
unsigned int numTries = 0;
std::string label(m_infoLabels[m_currentLabel].GetLabel(m_parentID));
while (label.empty() && ++numTries < m_infoLabels.size())
{
if (++m_currentLabel >= m_infoLabels.size())
m_currentLabel = 0;
label = m_infoLabels[m_currentLabel].GetLabel(m_parentID);
}
return label;
}
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