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Diffstat (limited to '')
| -rw-r--r-- | xbmc/guilib/GUIFadeLabelControl.cpp | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/xbmc/guilib/GUIFadeLabelControl.cpp b/xbmc/guilib/GUIFadeLabelControl.cpp new file mode 100644 index 0000000..5855f3c --- /dev/null +++ b/xbmc/guilib/GUIFadeLabelControl.cpp @@ -0,0 +1,267 @@ +/* + * 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; +} |