mirror/JUCE
1
0
Fork 0
mirror of https://github.com/juce-framework/JUCE.git synced 2026-01-11 23:54:18 +00:00
Code Activity

Projucer: added drawProgressBar() method to ProjucerLookAndFeel to draw spinning progress indicator

Browse source
This commit is contained in:
ed 2017-05-08 12:49:11 +01:00
parent 8ab39ef354
commit 73828a8cec
2 changed files with 68 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

66
extras/Projucer/Source/Utility/jucer_ProjucerLookAndFeel.cpp
View file

@ -364,6 +364,72 @@ void ProjucerLookAndFeel::drawTreeviewPlusMinusBox (Graphics& g, const Rectangle
g.strokePath (getArrowPath (area, isOpen ? 2 : 1, false, Justification::centredRight), PathStrokeType (2.0f));
}
void ProjucerLookAndFeel::drawProgressBar (Graphics& g, ProgressBar& progressBar,
int width, int height, double progress, const String& textToShow)
{
ignoreUnused (width, height, progress);
const auto background = progressBar.findColour (ProgressBar::backgroundColourId);
const auto foreground = progressBar.findColour (defaultButtonBackgroundColourId);
const auto sideLength = jmin (width, height);
auto barBounds = progressBar.getLocalBounds().withSizeKeepingCentre (sideLength, sideLength).reduced (1).toFloat();
auto rotationInDegrees = static_cast<float> ((Time::getMillisecondCounter() / 10) % 360);
auto normalisedRotation = rotationInDegrees / 360.0f;
const auto rotationOffset = 22.5f;
const auto maxRotation = 315.0f;
auto startInDegrees = rotationInDegrees;
auto endInDegrees = startInDegrees + rotationOffset;
if (normalisedRotation >= 0.25f && normalisedRotation < 0.5f)
{
const auto rescaledRotation = (normalisedRotation * 4.0f) - 1.0f;
endInDegrees = startInDegrees + rotationOffset + (maxRotation * rescaledRotation);
}
else if (normalisedRotation >= 0.5f && normalisedRotation <= 1.0f)
{
endInDegrees = startInDegrees + rotationOffset + maxRotation;
const auto rescaledRotation = 1.0f - ((normalisedRotation * 2.0f) - 1.0f);
startInDegrees = endInDegrees - rotationOffset - (maxRotation * rescaledRotation);
}
g.setColour (background);
Path arcPath2;
arcPath2.addCentredArc (barBounds.getCentreX(),
barBounds.getCentreY(),
barBounds.getWidth() * 0.5f,
barBounds.getHeight() * 0.5f, 0.0f,
0.0f,
2.0f * float_Pi,
true);
g.strokePath (arcPath2, PathStrokeType (2.0f));
g.setColour (foreground);
Path arcPath;
arcPath.addCentredArc (barBounds.getCentreX(),
barBounds.getCentreY(),
barBounds.getWidth() * 0.5f,
barBounds.getHeight() * 0.5f,
0.0f,
degreesToRadians (startInDegrees),
degreesToRadians (endInDegrees),
true);
arcPath.applyTransform (AffineTransform::rotation (normalisedRotation * float_Pi * 2.25f, barBounds.getCentreX(), barBounds.getCentreY()));
g.strokePath (arcPath, PathStrokeType (2.0f));
if (textToShow.isNotEmpty())
{
g.setColour (progressBar.findColour (TextButton::textColourOffId));
g.setFont (Font (12.0f, 2));
g.drawText (textToShow, barBounds, Justification::centred, false);
}
}
//==============================================================================
Path ProjucerLookAndFeel::getArrowPath (Rectangle<float> arrowZone, const int direction,
bool filled, const Justification justification)

2
extras/Projucer/Source/Utility/jucer_ProjucerLookAndFeel.h
View file

@ -75,6 +75,8 @@ public:
void drawTreeviewPlusMinusBox (Graphics&, const Rectangle<float>& area,
Colour backgroundColour, bool isItemOpen, bool isMouseOver) override;
void drawProgressBar (Graphics&, ProgressBar&, int width, int height, double progress, const String& textToShow) override;
//==============================================================================
static Path getArrowPath (Rectangle<float> arrowZone, const int direction,
const bool filled, const Justification justification);