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textscroller.c
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textscroller.c
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/*
* Skin flatPlus: A plugin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
* $Id$
*/
#include "./textscroller.h"
void cTextScroll::SetText(const char *text, cRect position, tColor colorFg, tColor colorBg, cFont *font,
tColor colorExtraTextFg) {
// if (!m_Osd) return;
Text.reserve(sizeof(text)); // Defined in 'textscroller.h'
Text = text;
Font = font;
Position = position;
ColorFg = colorFg; ColorBg = colorBg; ColorExtraTextFg = colorExtraTextFg;
const cRect DrawPort(0, 0, font->Width(text), position.Height());
m_Osd->DestroyPixmap(Pixmap);
Pixmap = CreatePixmap(m_Osd, "Pixmap", Layer, position, DrawPort);
// dsyslog("flatPlus: TextScrollerPixmap left: %d top: %d width: %d height: %d",
// Position.Left(), Position.Top(), Position.Width(), Position.Height());
// dsyslog("flatPlus: TextScrollerPixmap DrawPort left: %d top: %d width: %d height: %d",
// DrawPort.Left(), DrawPort.Top(), DrawPort.Width(), DrawPort.Height());
PixmapFill(Pixmap, colorBg);
Draw();
}
void cTextScroll::UpdateViewPortWidth(int w) {
if (!Pixmap) return;
cRect ViewPort {Pixmap->ViewPort()};
ViewPort.SetWidth(ViewPort.Width() - w);
Pixmap->SetViewPort(ViewPort);
}
void cTextScroll::Reset() {
if (!Pixmap) return;
Pixmap->SetDrawPortPoint(cPoint(0, 0));
WaitSteps = WAITSTEPS;
}
void cTextScroll::Draw() {
if (!Pixmap) return;
if (ColorExtraTextFg) {
std::string_view tilde {Text};
const std::size_t found {tilde.find('~')}; // Search for ~
if (found != std::string::npos) {
std::string_view sv1 {tilde.substr(0, found)};
std::string_view sv2 {tilde.substr(found + 1)}; // Default end is npos
const std::string first {rtrim(sv1)}; // Trim possible space at end
const std::string second {ltrim(sv2)}; // Trim possible space at begin
Pixmap->DrawText(cPoint(0, 0), first.c_str(), ColorFg, ColorBg, Font);
const int l {Font->Width(first.c_str()) + Font->Width('X')};
Pixmap->DrawText(cPoint(l, 0), second.c_str(), ColorExtraTextFg, ColorBg, Font);
} else { // ~ not found
Pixmap->DrawText(cPoint(0, 0), Text.c_str(), ColorFg, ColorBg, Font);
}
} else { // No extra color defined
Pixmap->DrawText(cPoint(0, 0), Text.c_str(), ColorFg, ColorBg, Font);
}
}
void cTextScroll::DoStep() {
if (!Pixmap) return;
if (WaitSteps > 0) { // Wait at the beginning for better read
--WaitSteps;
return;
}
if (ResetX) { // Wait after return to the front
ResetX = false;
Pixmap->SetDrawPortPoint(cPoint(0, 0));
WaitSteps = WAITSTEPS;
return;
}
int DrawPortX {Pixmap->DrawPort().X()};
if (IsReserveStep)
DrawPortX += PixelsPerStep;
else
DrawPortX -= PixelsPerStep;
int maxX {Pixmap->DrawPort().Width() - Pixmap->ViewPort().Width()};
maxX *= -1;
if (ScrollType == 0) {
if (DrawPortX <= maxX) {
DrawPortX += PixelsPerStep;
ResetX = true;
WaitSteps = WAITSTEPS;
}
} else if (ScrollType == 1) {
if (DrawPortX <= maxX) {
IsReserveStep = true;
WaitSteps = WAITSTEPS;
} else if (DrawPortX > 0) {
IsReserveStep = false;
WaitSteps = WAITSTEPS;
}
}
Pixmap->SetDrawPortPoint(cPoint(DrawPortX, 0));
}
cTextScrollers::cTextScrollers() {
Layer = 2;
Scrollers.reserve(16);
}
cTextScrollers::~cTextScrollers() {}
void cTextScrollers::Clear() {
Cancel(-1);
while (Active())
cCondWait::SleepMs(10);
std::vector<cTextScroll *>::iterator it, end = Scrollers.end();
for (it = Scrollers.begin(); it != end; ++it) {
delete *it;
}
Scrollers.clear();
}
void cTextScrollers::AddScroller(const char *text, cRect position, tColor colorFg, tColor colorBg, cFont *m_Font,
tColor ColorExtraTextFg) {
Cancel(-1);
while (Active())
cCondWait::SleepMs(10);
Scrollers.emplace_back(new cTextScroll(m_Osd, ScrollType, ScrollStep,
static_cast<int>(WAITDELAY * 1.0 / ScrollDelay), Layer));
Scrollers.back()->SetText(text, position, colorFg, colorBg, m_Font, ColorExtraTextFg);
StartScrolling();
}
void cTextScrollers::UpdateViewPortWidth(int w) {
std::vector<cTextScroll *>::iterator it, end = Scrollers.end();
for (it = Scrollers.begin(); it != end; ++it) {
cPixmap::Lock();
(*it)->UpdateViewPortWidth(w);
cPixmap::Unlock();
}
}
void cTextScrollers::StartScrolling() {
if (!Running() && Scrollers.size() > 0)
Start();
}
void cTextScrollers::Action() {
// Wait 1 second so the osd is finished
for (uint i {0}; i < 100 && Running(); ++i) {
cCondWait::SleepMs(10);
}
if (!Running()) return;
std::vector<cTextScroll *>::iterator it, end = Scrollers.end();
for (it = Scrollers.begin(); it != end; ++it) {
if (!Running()) return;
cPixmap::Lock();
(*it)->Reset();
cPixmap::Unlock();
}
while (Running()) {
if (Running())
cCondWait::SleepMs(ScrollDelay);
std::vector<cTextScroll *>::iterator it, end = Scrollers.end();
for (it = Scrollers.begin(); it != end; ++it) {
if (!Running()) return;
cPixmap::Lock();
(*it)->DoStep();
cPixmap::Unlock();
}
if (Running())
m_Osd->Flush();
}
}