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Add tests of setting clipping region and retrieving clipping box

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These new tests are about setting clipping region and retrieving clipping box for wxDC and wxGCDC with applied transformations.

See #17646
This commit is contained in:
Artur Wieczorek
2016-09-01 20:35:08 +02:00
parent 378aa9dc39
commit a37ed9a2b5
1 changed files with 280 additions and 46 deletions
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326
tests/graphics/clippingbox.cpp
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@@ -30,6 +30,7 @@
static const wxSize s_dcSize(100, 120);
static const wxColour s_bgColour(*wxWHITE); // colour to draw outside clipping box
static const wxColour s_fgColour(*wxGREEN); // colour to draw inside clipping box
static const wxColour s_tmpColour(*wxBLUE);
#if wxUSE_IMAGE
static bool CompareImageFuzzy(const wxImage& img1, const wxImage& img2, int posTolerance = 0)
@@ -129,7 +130,8 @@ public:
protected:
void CheckClipPos(int x, int y, int width, int height, int posTolerance = 0);
void CheckClipBox(int x, int y, int width, int height);
void CheckClipBox(int x, int y, int width, int height,
int devX, int devY, int devWidth, int devHeight);
void CheckClipShape(const wxBitmap& bmpRef, int posTolerance);
void InitialState();
@@ -141,7 +143,8 @@ protected:
void OneRegionNegDim();
void OneRegionAndReset();
void OneRegionAndEmpty();
void OneRegionWithTransformedDC();
void OneRegionOverTransformedDC();
void OneRegionAndDCTransformation();
void TwoRegionsOverlapping();
void TwoRegionsOverlappingNegDim();
void TwoRegionsNonOverlapping();
@@ -153,6 +156,8 @@ protected:
void OneDevRegionNonRect();
void OneDevRegionAndReset();
void OneDevRegionAndEmpty();
void OneDevRegionOverTransformedDC();
void OneDevRegionAndDCTransformation();
void TwoDevRegionsOverlapping();
void TwoDevRegionsOverlappingNegDim();
void TwoDevRegionsNonOverlapping();
@@ -210,7 +215,8 @@ private:
CPPUNIT_TEST( OneRegionNegDim );
CPPUNIT_TEST( OneRegionAndReset );
CPPUNIT_TEST( OneRegionAndEmpty );
CPPUNIT_TEST( OneRegionWithTransformedDC );
CPPUNIT_TEST( OneRegionOverTransformedDC );
CPPUNIT_TEST( OneRegionAndDCTransformation );
CPPUNIT_TEST( TwoRegionsOverlapping );
CPPUNIT_TEST( TwoRegionsOverlappingNegDim );
CPPUNIT_TEST( TwoRegionsNonOverlapping );
@@ -222,6 +228,8 @@ private:
CPPUNIT_TEST( OneDevRegionNonRect );
CPPUNIT_TEST( OneDevRegionAndReset);
CPPUNIT_TEST( OneDevRegionAndEmpty );
CPPUNIT_TEST( OneDevRegionOverTransformedDC);
CPPUNIT_TEST( OneDevRegionAndDCTransformation );
CPPUNIT_TEST( TwoDevRegionsOverlapping );
CPPUNIT_TEST( TwoDevRegionsOverlappingNegDim);
CPPUNIT_TEST( TwoDevRegionsNonOverlapping );
@@ -304,7 +312,8 @@ private:
CPPUNIT_TEST( OneRegionNegDim );
CPPUNIT_TEST( OneRegionAndReset );
CPPUNIT_TEST( OneRegionAndEmpty );
CPPUNIT_TEST( OneRegionWithTransformedDC );
CPPUNIT_TEST( OneRegionOverTransformedDC );
CPPUNIT_TEST( OneRegionAndDCTransformation );
CPPUNIT_TEST( TwoRegionsOverlapping );
CPPUNIT_TEST( TwoRegionsOverlappingNegDim );
CPPUNIT_TEST( TwoRegionsNonOverlapping );
@@ -316,6 +325,8 @@ private:
CPPUNIT_TEST( OneDevRegionNonRect );
CPPUNIT_TEST( OneDevRegionAndReset);
CPPUNIT_TEST( OneDevRegionAndEmpty );
CPPUNIT_TEST( OneDevRegionOverTransformedDC);
CPPUNIT_TEST( OneDevRegionAndDCTransformation );
CPPUNIT_TEST( TwoDevRegionsOverlapping );
CPPUNIT_TEST( TwoDevRegionsOverlappingNegDim);
CPPUNIT_TEST( TwoDevRegionsNonOverlapping );
@@ -366,7 +377,8 @@ private:
CPPUNIT_TEST( OneRegionNegDim );
CPPUNIT_TEST( OneRegionAndReset );
CPPUNIT_TEST( OneRegionAndEmpty );
CPPUNIT_TEST( OneRegionWithTransformedDC );
CPPUNIT_TEST( OneRegionOverTransformedDC );
CPPUNIT_TEST( OneRegionAndDCTransformation );
CPPUNIT_TEST( TwoRegionsOverlapping );
CPPUNIT_TEST( TwoRegionsOverlappingNegDim );
CPPUNIT_TEST( TwoRegionsNonOverlapping );
@@ -378,6 +390,8 @@ private:
CPPUNIT_TEST( OneDevRegionNonRect );
CPPUNIT_TEST( OneDevRegionAndReset);
CPPUNIT_TEST( OneDevRegionAndEmpty );
CPPUNIT_TEST( OneDevRegionOverTransformedDC);
CPPUNIT_TEST( OneDevRegionAndDCTransformation );
CPPUNIT_TEST( TwoDevRegionsOverlapping );
CPPUNIT_TEST( TwoDevRegionsOverlappingNegDim);
CPPUNIT_TEST( TwoDevRegionsNonOverlapping );
@@ -432,7 +446,8 @@ private:
CPPUNIT_TEST( OneRegionNegDim );
CPPUNIT_TEST( OneRegionAndReset );
CPPUNIT_TEST( OneRegionAndEmpty );
CPPUNIT_TEST( OneRegionWithTransformedDC );
CPPUNIT_TEST( OneRegionOverTransformedDC );
CPPUNIT_TEST( OneRegionAndDCTransformation );
CPPUNIT_TEST( TwoRegionsOverlapping );
CPPUNIT_TEST( TwoRegionsOverlappingNegDim );
CPPUNIT_TEST( TwoRegionsNonOverlapping );
@@ -444,6 +459,8 @@ private:
CPPUNIT_TEST( OneDevRegionNonRect );
CPPUNIT_TEST( OneDevRegionAndReset);
CPPUNIT_TEST( OneDevRegionAndEmpty );
CPPUNIT_TEST( OneDevRegionOverTransformedDC);
CPPUNIT_TEST( OneDevRegionAndDCTransformation );
CPPUNIT_TEST( TwoDevRegionsOverlapping );
CPPUNIT_TEST( TwoDevRegionsOverlappingNegDim);
CPPUNIT_TEST( TwoDevRegionsNonOverlapping );
@@ -490,7 +507,8 @@ private:
CPPUNIT_TEST( OneRegionNegDim );
CPPUNIT_TEST( OneRegionAndReset );
CPPUNIT_TEST( OneRegionAndEmpty );
CPPUNIT_TEST( OneRegionWithTransformedDC );
CPPUNIT_TEST( OneRegionOverTransformedDC );
CPPUNIT_TEST( OneRegionAndDCTransformation );
CPPUNIT_TEST( TwoRegionsOverlapping );
CPPUNIT_TEST( TwoRegionsOverlappingNegDim );
CPPUNIT_TEST( TwoRegionsNonOverlapping );
@@ -502,6 +520,8 @@ private:
CPPUNIT_TEST( OneDevRegionNonRect );
CPPUNIT_TEST( OneDevRegionAndReset);
CPPUNIT_TEST( OneDevRegionAndEmpty );
CPPUNIT_TEST( OneDevRegionOverTransformedDC);
CPPUNIT_TEST( OneDevRegionAndDCTransformation );
CPPUNIT_TEST( TwoDevRegionsOverlapping );
CPPUNIT_TEST( TwoDevRegionsOverlappingNegDim);
CPPUNIT_TEST( TwoDevRegionsNonOverlapping );
@@ -612,7 +632,7 @@ void ClippingBoxTestCaseBase::CheckClipRect(int x, int y, int width, int height)
corners[3] = wxPoint(x+width-1, y+height-1); // bottom-right corner
// Check area near every corner
for ( int c = 0; c < WXSIZEOF(corners); c++ )
for ( unsigned int c = 0; c < WXSIZEOF(corners); c++ )
{
int ymin = corners[c].y-1;
int xmin = corners[c].x-1;
@@ -709,7 +729,8 @@ void ClippingBoxTestCaseDCBase::CheckClipPos(int x, int y, int width, int height
CheckBoxPosition(clipX, clipY, clipW, clipH, x, y, width, height, posTolerance);
}
void ClippingBoxTestCaseDCBase::CheckClipBox(int x, int y, int width, int height)
void ClippingBoxTestCaseDCBase::CheckClipBox(int x, int y, int width, int height,
int devX, int devY, int devWidth, int devHeight)
{
// Check clipping box boundaries.
int clipX, clipY, clipW, clipH;
@@ -717,21 +738,16 @@ void ClippingBoxTestCaseDCBase::CheckClipBox(int x, int y, int width, int height
CheckBoxPosition(clipX, clipY, clipW, clipH, x, y, width, height);
// We will examine pixels directly in the underlying bitmap
// so we need to get device coordinates of examined area.
x = m_dc->LogicalToDeviceX(x);
y = m_dc->LogicalToDeviceY(y);
width = m_dc->LogicalToDeviceXRel(width);
height = m_dc->LogicalToDeviceYRel(height);
// Update wxDC contents.
FlushDC();
// We will examine pixels directly in the underlying bitmap
// so we need to use device coordinates of the examined area.
#if wxUSE_IMAGE
// We check whether diagonal corners
// of the rectangular clipping box are actually
// drawn at the edge of the clipping region.
CheckClipRect(x, y, width, height);
CheckClipRect(devX, devY, devWidth, devHeight);
#endif // wxUSE_IMAGE
}
@@ -756,7 +772,8 @@ void ClippingBoxTestCaseDCBase::InitialState()
// Initial clipping box should be the same as the entire DC surface.
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight(),
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
}
void ClippingBoxTestCaseDCBase::InitialStateWithTransformedDC()
@@ -768,25 +785,77 @@ void ClippingBoxTestCaseDCBase::InitialStateWithTransformedDC()
m_dc->SetLogicalOrigin(-15, -20);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(m_dc->DeviceToLogicalX(0),
m_dc->DeviceToLogicalY(0),
CheckClipBox(m_dc->DeviceToLogicalX(0), m_dc->DeviceToLogicalY(0),
m_dc->DeviceToLogicalXRel(s_dcSize.GetWidth()),
m_dc->DeviceToLogicalYRel(s_dcSize.GetHeight()));
m_dc->DeviceToLogicalYRel(s_dcSize.GetHeight()),
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
}
void ClippingBoxTestCaseDCBase::InitialStateWithRotatedDC()
{
#if wxUSE_DC_TRANSFORM_MATRIX
// Initial clipping box with rotated DC.
#if wxUSE_DC_TRANSFORM_MATRIX
int clipX, clipY, clipW, clipH;
if ( m_dc->CanUseTransformMatrix() )
{
// Apply rotation to DC.
wxAffineMatrix2D m = m_dc->GetTransformMatrix();
m.Rotate(6*M_PI/180.0);
m_dc->SetTransformMatrix(m);
// Calculate expected clipping box.
m.Invert();
double x1, y1, x2, y2;
double x, y;
// Top-left corner
x = 0.0;
y = 0.0;
m.TransformPoint(&x, &y);
x1 = x;
y1 = y;
x2 = x;
y2 = y;
// Top-right corner
x = s_dcSize.GetWidth();
y = 0.0;
m.TransformPoint(&x, &y);
x1 = wxMin(x1, x);
y1 = wxMin(y1, y);
x2 = wxMax(x2, x);
y2 = wxMax(y2, y);
// Bottom-right corner
x = s_dcSize.GetWidth();
y = s_dcSize.GetHeight();
m.TransformPoint(&x, &y);
x1 = wxMin(x1, x);
y1 = wxMin(y1, y);
x2 = wxMax(x2, x);
y2 = wxMax(y2, y);
// Bottom-left corner
x = 0.0;
y = s_dcSize.GetHeight();
m.TransformPoint(&x, &y);
x1 = wxMin(x1, x);
y1 = wxMin(y1, y);
x2 = wxMax(x2, x);
y2 = wxMax(y2, y);
clipX = wxRound(x1);
clipY = wxRound(y1);
clipW = wxRound(x2)-wxRound(x1);
clipH = wxRound(y2)-wxRound(y1);
}
else
{
clipX = 0;
clipY = 0;
clipW = s_dcSize.GetWidth();
clipH = s_dcSize.GetHeight();
}
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
CheckClipBox(clipX, clipY, clipW, clipH,
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
#endif // wxUSE_DC_TRANSFORM_MATRIX
}
@@ -801,7 +870,8 @@ void ClippingBoxTestCaseDCBase::OneRegion()
m_dc->SetClippingRegion(x, y, w, h);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(x, y, w, h);
CheckClipBox(x, y, w, h,
x, y, w, h);
}
void ClippingBoxTestCaseDCBase::OneLargeRegion()
@@ -812,7 +882,8 @@ void ClippingBoxTestCaseDCBase::OneLargeRegion()
s_dcSize.GetWidth()+30, s_dcSize.GetHeight()+50);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight(),
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
}
void ClippingBoxTestCaseDCBase::OneOuterRegion()
@@ -822,7 +893,8 @@ void ClippingBoxTestCaseDCBase::OneOuterRegion()
m_dc->SetClippingRegion(-100, -80, 20, 40);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
void ClippingBoxTestCaseDCBase::OneRegionNegDim()
@@ -842,6 +914,8 @@ void ClippingBoxTestCaseDCBase::OneRegionNegDim()
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight(),
r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight());
}
@@ -853,7 +927,8 @@ void ClippingBoxTestCaseDCBase::OneRegionAndReset()
m_dc->DestroyClippingRegion();
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight(),
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
}
void ClippingBoxTestCaseDCBase::OneRegionAndEmpty()
@@ -864,10 +939,11 @@ void ClippingBoxTestCaseDCBase::OneRegionAndEmpty()
m_dc->SetClippingRegion(0, 0, 0, 0);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
void ClippingBoxTestCaseDCBase::OneRegionWithTransformedDC()
void ClippingBoxTestCaseDCBase::OneRegionOverTransformedDC()
{
// Setting one clipping region inside DC area
// with applied some transformations.
@@ -886,10 +962,46 @@ void ClippingBoxTestCaseDCBase::OneRegionWithTransformedDC()
m_dc->DeviceToLogicalYRel(s_dcSize.GetHeight()));
wxRect r = r1.Intersect(r2);
wxASSERT( !r.IsEmpty() );
CheckClipBox(r.GetLeft(),
r.GetTop(),
r.GetWidth(),
r.GetHeight());
CheckClipBox(r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight(),
m_dc->LogicalToDeviceX(r.GetLeft()),
m_dc->LogicalToDeviceY(r.GetTop()),
m_dc->LogicalToDeviceXRel(r.GetWidth()),
m_dc->LogicalToDeviceYRel(r.GetHeight()));
}
void ClippingBoxTestCaseDCBase::OneRegionAndDCTransformation()
{
// Setting one clipping region inside DC area
// and applying DC transformation afterwards.
wxRect r(-10, -21, 26, 21);
m_dc->SetDeviceOrigin(10, 15);
m_dc->SetUserScale(0.5, 1.5);
m_dc->SetLogicalScale(4.0, 2.0);
m_dc->SetLogicalOrigin(-16, -21);
m_dc->SetClippingRegion(r);
m_dc->SetBackground(wxBrush(s_tmpColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
m_dc->SetDeviceOrigin(16, 24);
// This should entirely overpaint previous clipping area.
wxCoord x, y, w, h;
m_dc->GetClippingBox(&x, &y, &w, &h);
m_dc->SetClippingRegion(x, y, w, h);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
const int clipX = -13;
const int clipY = -24;
const int clipW = 26;
const int clipH = 21;
CheckClipBox(clipX, clipY, clipW, clipH,
m_dc->LogicalToDeviceX(clipX),
m_dc->LogicalToDeviceY(clipY),
m_dc->LogicalToDeviceXRel(clipW),
m_dc->LogicalToDeviceYRel(clipH));
}
void ClippingBoxTestCaseDCBase::TwoRegionsOverlapping()
@@ -906,6 +1018,8 @@ void ClippingBoxTestCaseDCBase::TwoRegionsOverlapping()
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight(),
r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight());
}
@@ -933,6 +1047,8 @@ void ClippingBoxTestCaseDCBase::TwoRegionsOverlappingNegDim()
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight(),
r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight());
}
@@ -948,7 +1064,8 @@ void ClippingBoxTestCaseDCBase::TwoRegionsNonOverlapping()
m_dc->SetClippingRegion(r2);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
void ClippingBoxTestCaseDCBase::TwoRegionsNonOverlappingNegDim()
@@ -973,7 +1090,8 @@ void ClippingBoxTestCaseDCBase::TwoRegionsNonOverlappingNegDim()
m_dc->SetClippingRegion(x2, y2, w2, h2);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
void ClippingBoxTestCaseDCBase::OneDevRegion()
@@ -996,7 +1114,8 @@ void ClippingBoxTestCaseDCBase::OneDevRegion()
CheckClipBox(m_dc->DeviceToLogicalX(x),
m_dc->DeviceToLogicalY(y),
m_dc->DeviceToLogicalXRel(w),
m_dc->DeviceToLogicalYRel(h));
m_dc->DeviceToLogicalYRel(h),
x, y, w, h);
}
void ClippingBoxTestCaseDCBase::OneLargeDevRegion()
@@ -1015,7 +1134,8 @@ void ClippingBoxTestCaseDCBase::OneLargeDevRegion()
CheckClipBox(m_dc->DeviceToLogicalX(0),
m_dc->DeviceToLogicalY(0),
m_dc->DeviceToLogicalXRel(s_dcSize.GetWidth()),
m_dc->DeviceToLogicalYRel(s_dcSize.GetHeight()));
m_dc->DeviceToLogicalYRel(s_dcSize.GetHeight()),
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
}
void ClippingBoxTestCaseDCBase::OneOuterDevRegion()
@@ -1031,7 +1151,8 @@ void ClippingBoxTestCaseDCBase::OneOuterDevRegion()
m_dc->SetDeviceClippingRegion(reg);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
void ClippingBoxTestCaseDCBase::OneDevRegionNegDim()
@@ -1059,7 +1180,8 @@ void ClippingBoxTestCaseDCBase::OneDevRegionNegDim()
CheckClipBox(m_dc->DeviceToLogicalX(r.GetLeft()),
m_dc->DeviceToLogicalY(r.GetTop()),
m_dc->DeviceToLogicalXRel(r.GetWidth()),
m_dc->DeviceToLogicalYRel(r.GetHeight()));
m_dc->DeviceToLogicalYRel(r.GetHeight()),
r.GetLeft(), r.GetTop(), r.GetWidth(), r.GetHeight());
}
void ClippingBoxTestCaseDCBase::OneDevRegionNonRect()
@@ -1127,7 +1249,8 @@ void ClippingBoxTestCaseDCBase::OneDevRegionAndReset()
CheckClipBox(m_dc->DeviceToLogicalX(0),
m_dc->DeviceToLogicalY(0),
m_dc->DeviceToLogicalXRel(s_dcSize.GetWidth()),
m_dc->DeviceToLogicalYRel(s_dcSize.GetHeight()));
m_dc->DeviceToLogicalYRel(s_dcSize.GetHeight()),
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
}
void ClippingBoxTestCaseDCBase::OneDevRegionAndEmpty()
@@ -1145,7 +1268,68 @@ void ClippingBoxTestCaseDCBase::OneDevRegionAndEmpty()
m_dc->SetDeviceClippingRegion(reg2);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
void ClippingBoxTestCaseDCBase::OneDevRegionOverTransformedDC()
{
// Set one clipping region in device coordinates inside
// DC area with applied some transformations.
wxRect r1(8, 15, 60, 75);
m_dc->SetDeviceOrigin(10, 15);
m_dc->SetUserScale(0.5, 1.5);
m_dc->SetLogicalScale(4.0, 2.0);
m_dc->SetLogicalOrigin(-15, -20);
wxRegion reg(r1);
m_dc->SetDeviceClippingRegion(reg);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
wxRect r2(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
wxRect r = r1.Intersect(r2);
wxASSERT( !r.IsEmpty() );
CheckClipBox(m_dc->DeviceToLogicalX(r.GetLeft()),
m_dc->DeviceToLogicalY(r.GetTop()),
m_dc->DeviceToLogicalXRel(r.GetWidth()),
m_dc->DeviceToLogicalYRel(r.GetHeight()),
r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight());
}
void ClippingBoxTestCaseDCBase::OneDevRegionAndDCTransformation()
{
// Set one clipping region in device coordinates inside
// DC area and apply DC transformation afterwards.
wxRect r1(8, 15, 60, 75);
m_dc->SetDeviceOrigin(10, 15);
m_dc->SetUserScale(0.5, 1.5);
m_dc->SetLogicalScale(4.0, 2.0);
m_dc->SetLogicalOrigin(-16, -21);
wxRegion reg(r1);
m_dc->SetDeviceClippingRegion(reg);
m_dc->SetBackground(wxBrush(s_tmpColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
m_dc->SetDeviceOrigin(16, 24);
// This should entirely overpaint previous clipping area.
wxCoord x, y, w, h;
m_dc->GetClippingBox(&x, &y, &w, &h);
m_dc->SetClippingRegion(x, y, w, h);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
wxRect r2(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
wxRect r = r1.Intersect(r2);
wxASSERT( !r.IsEmpty() );
CheckClipBox(m_dc->DeviceToLogicalX(r.GetLeft()),
m_dc->DeviceToLogicalY(r.GetTop()),
m_dc->DeviceToLogicalXRel(r.GetWidth()),
m_dc->DeviceToLogicalYRel(r.GetHeight()),
r.GetLeft(), r.GetTop(),
r.GetWidth(), r.GetHeight());
}
void ClippingBoxTestCaseDCBase::TwoDevRegionsOverlapping()
@@ -1171,7 +1355,8 @@ void ClippingBoxTestCaseDCBase::TwoDevRegionsOverlapping()
CheckClipBox(m_dc->DeviceToLogicalX(r.GetLeft()),
m_dc->DeviceToLogicalY(r.GetTop()),
m_dc->DeviceToLogicalXRel(r.GetWidth()),
m_dc->DeviceToLogicalYRel(r.GetHeight()));
m_dc->DeviceToLogicalYRel(r.GetHeight()),
r.GetLeft(), r.GetTop(), r.GetWidth(), r.GetHeight());
}
void ClippingBoxTestCaseDCBase::TwoDevRegionsOverlappingNegDim()
@@ -1207,7 +1392,8 @@ void ClippingBoxTestCaseDCBase::TwoDevRegionsOverlappingNegDim()
CheckClipBox(m_dc->DeviceToLogicalX(r.GetLeft()),
m_dc->DeviceToLogicalY(r.GetTop()),
m_dc->DeviceToLogicalXRel(r.GetWidth()),
m_dc->DeviceToLogicalYRel(r.GetHeight()));
m_dc->DeviceToLogicalYRel(r.GetHeight()),
r.GetLeft(), r.GetTop(), r.GetWidth(), r.GetHeight());
}
void ClippingBoxTestCaseDCBase::TwoDevRegionsNonOverlapping()
@@ -1229,7 +1415,8 @@ void ClippingBoxTestCaseDCBase::TwoDevRegionsNonOverlapping()
m_dc->SetDeviceClippingRegion(reg2);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
void ClippingBoxTestCaseDCBase::TwoDevRegionsNonOverlappingNegDim()
@@ -1260,7 +1447,8 @@ void ClippingBoxTestCaseDCBase::TwoDevRegionsNonOverlappingNegDim()
m_dc->SetDeviceClippingRegion(reg2);
m_dc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_dc->Clear();
CheckClipBox(0, 0, 0, 0);
CheckClipBox(0, 0, 0, 0,
0, 0, 0, 0);
}
// Tests specific to wxGCDC
@@ -1273,7 +1461,53 @@ void ClippingBoxTestCaseGCDC::InitialStateWithRotatedGCForDC()
m_gcdc->SetBackground(wxBrush(s_fgColour, wxBRUSHSTYLE_SOLID));
m_gcdc->Clear();
CheckClipBox(0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
// Calculate expected clipping box.
int clipX, clipY, clipW, clipH;
wxGraphicsMatrix m = gc->GetTransform();
m.Invert();
double x1, y1, x2, y2;
double x, y;
// Top-left corner
x = 0.0;
y = 0.0;
m.TransformPoint(&x, &y);
x1 = x;
y1 = y;
x2 = x;
y2 = y;
// Top-right corner
x = s_dcSize.GetWidth();
y = 0.0;
m.TransformPoint(&x, &y);
x1 = wxMin(x1, x);
y1 = wxMin(y1, y);
x2 = wxMax(x2, x);
y2 = wxMax(y2, y);
// Bottom-right corner
x = s_dcSize.GetWidth();
y = s_dcSize.GetHeight();
m.TransformPoint(&x, &y);
x1 = wxMin(x1, x);
y1 = wxMin(y1, y);
x2 = wxMax(x2, x);
y2 = wxMax(y2, y);
// Bottom-left corner
x = 0.0;
y = s_dcSize.GetHeight();
m.TransformPoint(&x, &y);
x1 = wxMin(x1, x);
y1 = wxMin(y1, y);
x2 = wxMax(x2, x);
y2 = wxMax(y2, y);
clipX = wxRound(x1);
clipY = wxRound(y1);
clipW = wxRound(x2)-wxRound(x1);
clipH = wxRound(y2)-wxRound(y1);
CheckClipBox(clipX, clipY, clipW, clipH,
0, 0, s_dcSize.GetWidth(), s_dcSize.GetHeight());
}
#endif // wxUSE_GRAPHICS_CONTEXT