static void
draw_text (cairo_t *cr)
{
cairo_matrix_t tm;
/* skew */
cairo_matrix_init (&tm, 1, 0,
-0.25, 1,
0, 0);
cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE);
cairo_set_font_matrix (cr, &tm);
cairo_new_path (cr);
cairo_move_to (cr, 50, SIZE-PAD);
cairo_show_text (cr, "A");
/* rotate and scale */
cairo_matrix_init_rotate (&tm, M_PI / 2);
cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE * 2.0);
cairo_set_font_matrix (cr, &tm);
cairo_new_path (cr);
cairo_move_to (cr, PAD, PAD + 25);
cairo_show_text (cr, "A");
cairo_matrix_init_rotate (&tm, M_PI / 2);
cairo_matrix_scale (&tm, FONT_SIZE * 2.0, FONT_SIZE);
cairo_set_font_matrix (cr, &tm);
cairo_new_path (cr);
cairo_move_to (cr, PAD, PAD + 50);
cairo_show_text (cr, "A");
}
void
ge_cairo_mirror (cairo_t *cr,
CairoMirror mirror,
gint *x,
gint *y,
gint *width,
gint *height)
{
cairo_matrix_t matrix;
cairo_matrix_init_identity (&matrix);
cairo_translate (cr, *x, *y);
*x = 0;
*y = 0;
if (mirror & CR_MIRROR_HORIZONTAL)
{
cairo_matrix_scale (&matrix, -1, 1);
*x = -*width;
}
if (mirror & CR_MIRROR_VERTICAL)
{
cairo_matrix_scale (&matrix, 1, -1);
*y = -*height;
}
cairo_transform (cr, &matrix);
}
void wxGISDisplay::InitTransformMatrix(void)
{
m_dFrameCenterX = m_oDeviceFrameRect.GetWidth() / 2;
m_dFrameCenterY = m_oDeviceFrameRect.GetHeight() / 2;
double dWorldCenterX = (m_CurrentBounds.MaxX - m_CurrentBounds.MinX) / 2;
double dWorldCenterY = (m_CurrentBounds.MaxY - m_CurrentBounds.MinY) / 2;
//origin (UL corner)
m_dOrigin_X = m_dCacheCenterX - m_dFrameCenterX;
m_dOrigin_Y = m_dCacheCenterY - m_dFrameCenterY;
//get scale
double dScaleX = fabs(m_dFrameCenterX / dWorldCenterX);
double dScaleY = fabs(m_dFrameCenterY / dWorldCenterY);
m_dScale = wxMin(dScaleX, dScaleY);
double dWorldDeltaX = dWorldCenterX + m_CurrentBounds.MinX;
double dWorldDeltaY = dWorldCenterY + m_CurrentBounds.MinY;
double dWorldDeltaXSt = m_dScale * dWorldDeltaX;// + m_dAngleRad * dWorldDeltaY;
double dWorldDeltaYSt = m_dScale * dWorldDeltaY;//m_dAngleRad * dWorldDeltaX +
//double dCenterX = m_dCacheCenterX - dWorldDeltaXSt;//(dWorldCenterX + m_CurrentBounds.MinX) * dScale;//
//double dCenterY = m_dCacheCenterY + dWorldDeltaYSt;//(dWorldCenterY + m_CurrentBounds.MinY) * dScale;//
m_dFrameXShift = m_dFrameCenterX - dWorldDeltaXSt;//(dWorldCenterX + m_CurrentBounds.MinX) * dScale;//
m_dFrameYShift = m_dFrameCenterY + dWorldDeltaYSt;//(dWorldCenterY + m_CurrentBounds.MinY) * dScale;//
// cairo_matrix_init (m_pMatrix, 1, 0, 0, 1, m_dCacheCenterX, m_dCacheCenterY);
//cairo_matrix_init (m_pMatrix, dScale, 0.0, 0.0, -dScale, dCenterX, dCenterY);
cairo_matrix_init_translate (m_pMatrix, m_dCacheCenterX, m_dCacheCenterY);
//rotate
//cairo_matrix_rotate(m_pMatrix, 45.0 * M_PI / 180.0);
if(!IsDoubleEquil(m_dAngleRad, 0.0))
//{
//cairo_matrix_translate(m_pMatrix, dWorldDeltaXSt, dWorldDeltaYSt);
cairo_matrix_rotate(m_pMatrix, m_dAngleRad);
//cairo_matrix_translate(m_pMatrix, -dWorldDeltaXSt, dWorldDeltaYSt);
//}
//else
cairo_matrix_translate(m_pMatrix, -dWorldDeltaXSt, dWorldDeltaYSt);
cairo_matrix_scale(m_pMatrix, m_dScale, -m_dScale);
//init matrix for Wld2DC & DC2Wld
cairo_matrix_init_translate (m_pDisplayMatrix, m_dFrameCenterX, m_dFrameCenterY);
if(!IsDoubleEquil(m_dAngleRad, 0.0))
cairo_matrix_rotate(m_pDisplayMatrix, m_dAngleRad);
cairo_matrix_translate(m_pDisplayMatrix, -dWorldDeltaXSt, dWorldDeltaYSt);
cairo_matrix_scale(m_pDisplayMatrix, m_dScale, -m_dScale);
//init matrix for TransformRect
cairo_matrix_init_translate (m_pDisplayMatrixNoRotate, m_dFrameCenterX, m_dFrameCenterY);
cairo_matrix_translate(m_pDisplayMatrixNoRotate, -dWorldDeltaXSt, dWorldDeltaYSt);
cairo_matrix_scale(m_pDisplayMatrixNoRotate, m_dScale, -m_dScale);
//set matrix to all caches
for(size_t i = 0; i < m_saLayerCaches.size(); ++i)
cairo_set_matrix (m_saLayerCaches[i].pCairoContext, m_pMatrix);
}
void
draw_gdk_apply_netstate_transformation (cairo_matrix_t *fullMatrix, cairo_matrix_t *scaleMatrix,
gerbv_netstate_t *state) {
/* apply scale factor */
cairo_matrix_scale (fullMatrix, state->scaleA, state->scaleB);
cairo_matrix_scale (scaleMatrix, state->scaleA, state->scaleB);
/* apply offset */
cairo_matrix_translate (fullMatrix, state->offsetA, state->offsetB);
/* apply mirror */
switch (state->mirrorState) {
case GERBV_MIRROR_STATE_FLIPA:
cairo_matrix_scale (fullMatrix, -1, 1);
cairo_matrix_scale (scaleMatrix, -1, 1);
break;
case GERBV_MIRROR_STATE_FLIPB:
cairo_matrix_scale (fullMatrix, 1, -1);
cairo_matrix_scale (scaleMatrix, -1, 1);
break;
case GERBV_MIRROR_STATE_FLIPAB:
cairo_matrix_scale (fullMatrix, -1, -1);
cairo_matrix_scale (scaleMatrix, -1, 1);
break;
default:
break;
}
/* finally, apply axis select */
if (state->axisSelect == GERBV_AXIS_SELECT_SWAPAB) {
/* we do this by rotating 270 (counterclockwise, then mirroring
the Y axis */
cairo_matrix_rotate (fullMatrix, 3 * M_PI / 2);
cairo_matrix_scale (fullMatrix, 1, -1);
}
}
void
_cairo_draw_film_foreground (cairo_t *cr,
int x,
int y,
int width,
int height,
int thumbnail_size)
{
cairo_pattern_t *pattern;
double film_scale;
cairo_matrix_t matrix;
double film_strip;
/* left film strip */
pattern = _cairo_film_pattern_create ();
if (thumbnail_size > 128)
film_scale = 256.0 / thumbnail_size;
else
film_scale = 128.0 / thumbnail_size;
film_strip = 9.0 / film_scale;
cairo_matrix_init_identity (&matrix);
cairo_matrix_scale (&matrix, film_scale, film_scale);
cairo_matrix_translate (&matrix, -x, 0);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_set_source (cr, pattern);
cairo_rectangle (cr,
x,
y,
film_strip,
height);
cairo_fill (cr);
/* right film strip */
x = x + width - film_strip;
cairo_matrix_init_identity (&matrix);
cairo_matrix_scale (&matrix, film_scale, film_scale);
cairo_matrix_translate (&matrix, -x, 0);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_set_source (cr, pattern);
cairo_rectangle (cr,
x,
y,
film_strip,
height);
cairo_fill (cr);
cairo_pattern_destroy (pattern);
}
static cairo_test_status_t
source (cairo_t *cr, int width, int height)
{
cairo_pattern_t *pattern;
cairo_matrix_t mat;
cairo_translate (cr, PAD, PAD);
pattern = create_pattern (cr);
cairo_matrix_init_identity (&mat);
cairo_matrix_scale (&mat, 2, 1.5);
cairo_matrix_rotate (&mat, 1);
cairo_matrix_translate (&mat, -PAT_WIDTH/4.0, -PAT_WIDTH/2.0);
cairo_pattern_set_matrix (pattern, &mat);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE);
cairo_set_source (cr, pattern);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_paint (cr);
cairo_pattern_destroy (pattern);
return CAIRO_TEST_SUCCESS;
}
void FontPlatformData::initializeWithFontFace(cairo_font_face_t* fontFace)
{
cairo_font_options_t* options = getDefaultFontOptions();
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
// Scaling a font with width zero size leads to a failed cairo_scaled_font_t instantiations.
// Instead we scale we scale the font to a very tiny size and just abort rendering later on.
float realSize = m_size ? m_size : 1;
cairo_matrix_t fontMatrix;
if (!m_pattern)
cairo_matrix_init_scale(&fontMatrix, realSize, realSize);
else {
setCairoFontOptionsFromFontConfigPattern(options, m_pattern.get());
// FontConfig may return a list of transformation matrices with the pattern, for instance,
// for fonts that are oblique. We use that to initialize the cairo font matrix.
FcMatrix fontConfigMatrix, *tempFontConfigMatrix;
FcMatrixInit(&fontConfigMatrix);
// These matrices may be stacked in the pattern, so it's our job to get them all and multiply them.
for (int i = 0; FcPatternGetMatrix(m_pattern.get(), FC_MATRIX, i, &tempFontConfigMatrix) == FcResultMatch; i++)
FcMatrixMultiply(&fontConfigMatrix, &fontConfigMatrix, tempFontConfigMatrix);
cairo_matrix_init(&fontMatrix, fontConfigMatrix.xx, -fontConfigMatrix.yx,
-fontConfigMatrix.xy, fontConfigMatrix.yy, 0, 0);
// The matrix from FontConfig does not include the scale.
cairo_matrix_scale(&fontMatrix, realSize, realSize);
}
m_scaledFont = cairo_scaled_font_create(fontFace, &fontMatrix, &ctm, options);
cairo_font_options_destroy(options);
}
static cairo_status_t
_cairo_type3_glyph_surface_emit_image_pattern (cairo_type3_glyph_surface_t *surface,
cairo_image_surface_t *image,
cairo_matrix_t *pattern_matrix)
{
cairo_matrix_t mat, upside_down;
cairo_status_t status;
if (image->width == 0 || image->height == 0)
return CAIRO_STATUS_SUCCESS;
mat = *pattern_matrix;
/* Get the pattern space to user space matrix */
status = cairo_matrix_invert (&mat);
/* cairo_pattern_set_matrix ensures the matrix is invertible */
assert (status == CAIRO_STATUS_SUCCESS);
/* Make this a pattern space to Type 3 font space matrix */
cairo_matrix_multiply (&mat, &mat, &surface->cairo_to_pdf);
/* PDF images are in a 1 unit by 1 unit image space. Turn the 1 by
* 1 image upside down to convert to flip the Y-axis going from
* cairo to PDF. Then scale the image up to the required size. */
cairo_matrix_scale (&mat, image->width, image->height);
cairo_matrix_init (&upside_down, 1, 0, 0, -1, 0, 1);
cairo_matrix_multiply (&mat, &upside_down, &mat);
return _cairo_type3_glyph_surface_emit_image (surface, image, &mat);
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_font_face_t *font_face;
cairo_font_options_t *font_options;
cairo_scaled_font_t *scaled_font;
cairo_matrix_t identity;
cairo_matrix_t zero;
cairo_matrix_init_identity(&identity);
zero = identity;
cairo_matrix_scale(&zero, 0, 0);
font_face = cairo_get_font_face (cr);
font_options = cairo_font_options_create ();
cairo_get_font_options (cr, font_options);
scaled_font = cairo_scaled_font_create (font_face,
&identity,
&zero,
font_options);
cairo_set_scaled_font (cr, scaled_font);
cairo_show_text (cr, "Hello");
cairo_scaled_font_destroy (scaled_font);
cairo_font_options_destroy (font_options);
return cairo_test_status_from_status (cairo_test_get_context (cr),
cairo_status(cr));
}
void FontPlatformData::initializeWithFontFace(cairo_font_face_t* fontFace)
{
cairo_font_options_t* options = cairo_font_options_copy(getDefaultFontOptions());
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
cairo_matrix_t fontMatrix;
if (!m_pattern)
cairo_matrix_init_scale(&fontMatrix, m_size, m_size);
else {
setCairoFontOptionsFromFontConfigPattern(options, m_pattern.get());
// FontConfig may return a list of transformation matrices with the pattern, for instance,
// for fonts that are oblique. We use that to initialize the cairo font matrix.
FcMatrix fontConfigMatrix, *tempFontConfigMatrix;
FcMatrixInit(&fontConfigMatrix);
// These matrices may be stacked in the pattern, so it's our job to get them all and multiply them.
for (int i = 0; FcPatternGetMatrix(m_pattern.get(), FC_MATRIX, i, &tempFontConfigMatrix) == FcResultMatch; i++)
FcMatrixMultiply(&fontConfigMatrix, &fontConfigMatrix, tempFontConfigMatrix);
cairo_matrix_init(&fontMatrix, fontConfigMatrix.xx, -fontConfigMatrix.yx,
-fontConfigMatrix.xy, fontConfigMatrix.yy, 0, 0);
// The matrix from FontConfig does not include the scale.
cairo_matrix_scale(&fontMatrix, m_size, m_size);
}
m_scaledFont = adoptPlatformRef(cairo_scaled_font_create(fontFace, &fontMatrix, &ctm, options));
cairo_font_options_destroy(options);
}
static SeedValue
seed_cairo_matrix_scale (SeedContext ctx,
SeedObject function,
SeedObject this_object,
gsize argument_count,
const SeedValue arguments[],
SeedException *exception)
{
gdouble x, y;
cairo_matrix_t m;
if (argument_count != 3)
{
EXPECTED_EXCEPTION("scale", "3 arguments");
}
if (!seed_value_to_cairo_matrix (ctx, arguments[0], &m, exception))
{
seed_make_exception (ctx, exception, "ArgumentError", "scale needs an array [xx, yx, xy, yy, x0, y0]");
}
x = seed_value_to_double (ctx, arguments[1], exception);
y = seed_value_to_double (ctx, arguments[2], exception);
cairo_matrix_scale (&m, x, y);
return seed_value_from_cairo_matrix (ctx, &m, exception);
}
/**
* adg_gtk_area_reset:
* @area: an #AdgGtkArea
*
* Forcibly resets the zoom ratio and position of the canvas bound
* to @area. This means the canvas will be scaled and centered on
* the current available space.
**/
void
adg_gtk_area_reset(AdgGtkArea *area)
{
AdgGtkAreaPrivate *data;
GtkWidget *parent;
const CpmlExtents *sheet;
GtkAllocation allocation;
CpmlPair size;
gdouble zoom;
g_return_if_fail(ADG_GTK_IS_AREA(area));
data = adg_gtk_area_get_instance_private(area);
cairo_matrix_init_identity(&data->render_map);
sheet = _adg_get_extents(area);
if (!sheet->is_defined || sheet->size.x <= 0 || sheet->size.y <= 0)
return;
parent = gtk_widget_get_parent((GtkWidget *) area);
gtk_widget_get_allocation(parent, &allocation);
size.x = allocation.width;
size.y = allocation.height;
zoom = MIN(size.x / sheet->size.x, size.y / sheet->size.y);
cairo_matrix_scale(&data->render_map, zoom, zoom);
cairo_matrix_translate(&data->render_map,
(size.x / zoom - sheet->size.x) / 2 - sheet->org.x,
(size.y / zoom - sheet->size.y) / 2 - sheet->org.y);
/* Trigger a resize trying to hide the scrollbars on the parent */
gtk_widget_queue_resize(parent);
}
JNIEXPORT void JNICALL
Java_org_freedesktop_cairo_CairoMatrix_cairo_1matrix_1scale
(
JNIEnv* env,
jclass cls,
jlong _self,
jdouble _sx,
jdouble _sy
)
{
cairo_matrix_t* self;
double sx;
double sy;
// convert parameter self
self = (cairo_matrix_t*) _self;
// convert parameter sx
sx = (double) _sx;
// convert parameter sy
sy = (double) _sy;
// call function
cairo_matrix_scale(self, sx, sy);
// cleanup parameter self
// cleanup parameter sx
// cleanup parameter sy
}
static int
cairmat_scale (lua_State *L) {
cairo_matrix_t mat;
from_lua_matrix(L, &mat, 1);
cairo_matrix_scale(&mat, luaL_checknumber(L, 2), luaL_checknumber(L, 3));
to_lua_matrix(L, &mat, 1);
return 0;
}
static int m_cairo_matrix_scale(lua_State * L)
{
cairo_matrix_t * matrix = luaL_checkudata(L, 1, MT_NAME_CAIRO_MATRIX);
double sx = luaL_checknumber(L, 2);
double sy = luaL_checknumber(L, 3);
cairo_matrix_scale(matrix, sx, sy);
return 0;
}
void ofCairoRenderer::scale(float xAmnt, float yAmnt, float zAmnt ){
if(!surface || !cr) return;
cairo_matrix_scale(getCairoMatrix(),xAmnt,yAmnt);
setCairoMatrix();
if(!b3D) return;
modelView.glScale(xAmnt,yAmnt,zAmnt);
}
static cairo_status_t
_cairo_skia_context_scale (void *abstract_cr,
double sx,
double sy)
{
cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
cairo_matrix_scale (&cr->matrix, sx, sy);
return CAIRO_STATUS_SUCCESS;
}
//----------------------------------------------------------
void ofCairoRenderer::scale(float xAmnt, float yAmnt, float zAmnt ){
if(!surface || !cr) return;
cairo_matrix_t matrix;
cairo_get_matrix(cr,&matrix);
cairo_matrix_scale(&matrix,xAmnt,yAmnt);
cairo_set_matrix(cr,&matrix);
if(!b3D) return;
modelView.glScale(xAmnt,yAmnt,zAmnt);
}
static PyObject *
matrix_scale (PycairoMatrix *o, PyObject *args) {
double sx, sy;
if (!PyArg_ParseTuple(args, "dd:Matrix.scale", &sx, &sy))
return NULL;
cairo_matrix_scale (&o->matrix, sx, sy);
Py_RETURN_NONE;
}
/**
* goo_canvas_item_model_scale:
* @model: an item model.
* @sx: the amount to scale the horizontal axis.
* @sy: the amount to scale the vertical axis.
*
* Scales the model's coordinate system by the given amounts.
**/
void
goo_canvas_item_model_scale (GooCanvasItemModel *model,
gdouble sx,
gdouble sy)
{
GooCanvasItemModelIface *iface = GOO_CANVAS_ITEM_MODEL_GET_IFACE (model);
cairo_matrix_t new_matrix = { 1, 0, 0, 1, 0, 0 };
iface->get_transform (model, &new_matrix);
cairo_matrix_scale (&new_matrix, sx, sy);
iface->set_transform (model, &new_matrix);
}
static cairo_scaled_font_t *
create_scaled_font (cairo_t * cr)
{
FcPattern *pattern, *resolved;
FcResult result;
cairo_font_face_t *font_face;
cairo_scaled_font_t *scaled_font;
cairo_font_options_t *font_options;
cairo_matrix_t font_matrix, ctm;
double pixel_size;
font_options = cairo_font_options_create ();
cairo_get_font_options (cr, font_options);
pattern = FcPatternCreate ();
FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *)"Bitstream Vera Sans");
FcPatternAddDouble (pattern, FC_PIXEL_SIZE, TEXT_SIZE);
FcConfigSubstitute (NULL, pattern, FcMatchPattern);
cairo_ft_font_options_substitute (font_options, pattern);
FcDefaultSubstitute (pattern);
resolved = FcFontMatch (NULL, pattern, &result);
/* set layout to vertical */
FcPatternDel (resolved, FC_VERTICAL_LAYOUT);
FcPatternAddBool (resolved, FC_VERTICAL_LAYOUT, FcTrue);
FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size);
font_face = cairo_ft_font_face_create_for_pattern (resolved);
cairo_matrix_init_translate (&font_matrix, 10, 30);
cairo_matrix_rotate (&font_matrix, M_PI_2/3);
cairo_matrix_scale (&font_matrix, pixel_size, pixel_size);
cairo_get_matrix (cr, &ctm);
scaled_font = cairo_scaled_font_create (font_face,
&font_matrix,
&ctm,
font_options);
cairo_font_options_destroy (font_options);
cairo_font_face_destroy (font_face);
FcPatternDestroy (pattern);
FcPatternDestroy (resolved);
return scaled_font;
}
void
S9xGTKDisplayDriver::output (void *src,
int src_pitch,
int x,
int y,
int width,
int height,
int dst_width,
int dst_height)
{
if (last_known_width != dst_width || last_known_height != dst_height)
{
clear ();
last_known_width = dst_width;
last_known_height = dst_height;
}
cairo_t *cr = window->get_cairo ();
cairo_surface_t *surface;
surface = cairo_image_surface_create_for_data ((unsigned char *) src, CAIRO_FORMAT_RGB16_565, width, height, src_pitch);
cairo_set_source_surface (cr, surface, 0, 0);
if (width != dst_width || height != dst_height)
{
cairo_matrix_t matrix;
cairo_pattern_t *pattern = cairo_get_source (cr);;
cairo_matrix_init_identity (&matrix);
cairo_matrix_scale (&matrix,
(double) width / (double) dst_width,
(double) height / (double) dst_height);
cairo_matrix_translate (&matrix, -x, -y);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_pattern_set_filter (pattern,
Settings.BilinearFilter
? CAIRO_FILTER_BILINEAR
: CAIRO_FILTER_NEAREST);
}
cairo_rectangle (cr, x, y, dst_width, dst_height);
cairo_fill (cr);
cairo_surface_finish (surface);
cairo_surface_destroy (surface);
window->release_cairo ();
window->set_mouseable_area (x, y, width, height);
}
void FontPlatformData::initializeWithFontFace(cairo_font_face_t* fontFace, const FontDescription& fontDescription)
{
cairo_font_options_t* options = getDefaultFontOptions();
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
// Scaling a font with width zero size leads to a failed cairo_scaled_font_t instantiations.
// Instead we scale we scale the font to a very tiny size and just abort rendering later on.
float realSize = m_size ? m_size : 1;
cairo_matrix_t fontMatrix;
if (!m_pattern)
cairo_matrix_init_scale(&fontMatrix, realSize, realSize);
else {
setCairoFontOptionsFromFontConfigPattern(options, m_pattern.get());
// FontConfig may return a list of transformation matrices with the pattern, for instance,
// for fonts that are oblique. We use that to initialize the cairo font matrix.
FcMatrix fontConfigMatrix, *tempFontConfigMatrix;
FcMatrixInit(&fontConfigMatrix);
// These matrices may be stacked in the pattern, so it's our job to get them all and multiply them.
for (int i = 0; FcPatternGetMatrix(m_pattern.get(), FC_MATRIX, i, &tempFontConfigMatrix) == FcResultMatch; i++)
FcMatrixMultiply(&fontConfigMatrix, &fontConfigMatrix, tempFontConfigMatrix);
cairo_matrix_init(&fontMatrix, fontConfigMatrix.xx, -fontConfigMatrix.yx,
-fontConfigMatrix.xy, fontConfigMatrix.yy, 0, 0);
// We requested an italic font, but Fontconfig gave us one that was neither oblique nor italic.
int actualFontSlant;
if (fontDescription.italic() && FcPatternGetInteger(m_pattern.get(), FC_SLANT, 0, &actualFontSlant) == FcResultMatch)
m_syntheticOblique = actualFontSlant == FC_SLANT_ROMAN;
// The matrix from FontConfig does not include the scale.
cairo_matrix_scale(&fontMatrix, realSize, realSize);
}
if (syntheticOblique()) {
static const float syntheticObliqueSkew = -tanf(14 * acosf(0) / 90);
cairo_matrix_t skew = {1, 0, syntheticObliqueSkew, 1, 0, 0};
cairo_matrix_multiply(&fontMatrix, &skew, &fontMatrix);
}
m_horizontalOrientationMatrix = fontMatrix;
if (m_orientation == Vertical)
rotateCairoMatrixForVerticalOrientation(&fontMatrix);
m_scaledFont = cairo_scaled_font_create(fontFace, &fontMatrix, &ctm, options);
cairo_font_options_destroy(options);
}
/*!
* \brief Scale in the coordinate system of the shape, afterwards rotate
* @param m matrix
* @param a angle in radians
* @param sx horizontal scale
* @param sy vertical scale
* \extends _DiaMatrix
*/
void
dia_matrix_set_angle_and_scales (DiaMatrix *m,
real a,
real sx,
real sy)
{
real dx = m->x0;
real dy = m->y0;
cairo_matrix_init_rotate ((cairo_matrix_t *)m, a);
cairo_matrix_scale ((cairo_matrix_t *)m, sx, sy);
m->x0 = dx;
m->y0 = dy;
}
static void
ar_card_theme_kde_paint_card (ArCardTheme *card_theme,
cairo_t *cr,
int card_id)
{
ArCardThemePreimage *preimage_card_theme = (ArCardThemePreimage *) card_theme;
ArCardThemeKDE *theme = (ArCardThemeKDE *) card_theme;
ArSvg *svg = preimage_card_theme->cards_svg;
char node[32];
cairo_rectangle_t *card_extents;
cairo_matrix_t matrix;
cairo_font_options_t *font_options;
if (G_UNLIKELY (card_id == AR_CARD_SLOT)) {
ar_svg_render_cairo (preimage_card_theme->slot_preimage,
cr,
preimage_card_theme->card_size.width,
preimage_card_theme->card_size.height);
return;
}
if (theme->legacy)
ar_card_get_legacy_node_by_id_snprintf (node, sizeof (node), card_id);
else
ar_card_get_node_by_id_snprintf (node, sizeof (node), card_id);
card_extents = ar_card_theme_kde_get_card_extents (theme, card_id, node);
if (!card_extents)
return;
cairo_save (cr);
font_options = ar_svg_get_font_options (svg);
if (font_options) {
cairo_set_antialias (cr, cairo_font_options_get_antialias (font_options));
cairo_set_font_options (cr, font_options);
}
cairo_matrix_init_identity (&matrix);
cairo_matrix_scale (&matrix,
preimage_card_theme->card_size.width / card_extents->width,
preimage_card_theme->card_size.height / card_extents->height);
cairo_matrix_translate (&matrix, -card_extents->x, -card_extents->y);
cairo_set_matrix (cr, &matrix);
rsvg_handle_render_cairo_sub (RSVG_HANDLE (svg), cr, node);
cairo_restore (cr);
}
/**
* goo_canvas_item_model_set_simple_transform:
* @model: an item model.
* @x: the x coordinate of the origin of the model's coordinate space.
* @y: the y coordinate of the origin of the model's coordinate space.
* @scale: the scale of the model.
* @rotation: the clockwise rotation of the model, in degrees.
*
* A convenience function to set the item model's transformation matrix.
**/
void
goo_canvas_item_model_set_simple_transform (GooCanvasItemModel *model,
gdouble x,
gdouble y,
gdouble scale,
gdouble rotation)
{
GooCanvasItemModelIface *iface = GOO_CANVAS_ITEM_MODEL_GET_IFACE (model);
cairo_matrix_t new_matrix = { 1, 0, 0, 1, 0, 0 };
cairo_matrix_translate (&new_matrix, x, y);
cairo_matrix_scale (&new_matrix, scale, scale);
cairo_matrix_rotate (&new_matrix, rotation * (M_PI / 180));
iface->set_transform (model, &new_matrix);
}
void uiDrawMatrixScale(uiDrawMatrix *m, double xCenter, double yCenter, double x, double y)
{
cairo_matrix_t c;
double xt, yt;
m2c(m, &c);
// TODO explain why the translation must come first
xt = x;
yt = y;
scaleCenter(xCenter, yCenter, &xt, &yt);
cairo_matrix_translate(&c, xt, yt);
cairo_matrix_scale(&c, x, y);
// TODO undo the translation?
c2m(&c, m);
}
void QCairoPaintEngine::drawImage(const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags /*flags*/)
{
//qDebug()<<"drawImage r="<<r<<" sr="<<sr;
double w, h;
cairo_surface_t *image;
QImage img;
QRect sri=sr.toRect();
if (sri.isValid() && (sri.x()!=0 || sri.y()!=0 || sri.size()!=sri.size())) {
img=pm.copy(sri).convertToFormat(QImage::Format_ARGB32);
} else {
img=pm.convertToFormat(QImage::Format_ARGB32);
}
if (!img.isNull()) {
cairo_format_t imgformat=CAIRO_FORMAT_ARGB32;
updateMatrix();
image = cairo_image_surface_create_for_data(img.bits(), imgformat, img.width(), img.height(), img.bytesPerLine());
w = img.width();
h = img.height();
cairo_matrix_t cm;
cairo_matrix_init_identity(&cm);
cairo_matrix_translate (&cm, r.x(), r.y());
if (sr.isValid()) cairo_matrix_scale(&cm, r.width() / sr.width(), r.height() / sr.height());
//cairo_matrix_translate (&cm, -sr.x(), -sr.y());
cairo_matrix_invert(&cm);
cairo_pattern_t* brush=cairo_pattern_create_for_surface(image);
cairo_pattern_set_matrix(brush, &cm);
cairo_pattern_set_extend(brush, CAIRO_EXTEND_NONE);
cairo_rectangle(cr, r.x(), r.y(), r.width(), r.height());
cairo_set_source(cr, brush);
cairo_fill_preserve(cr);
cairo_set_source_rgba(cr, 0,0,0,0);
cairo_set_line_width(cr, 0.0);
cairo_stroke(cr);
//cairo_fill(cr);
//cairo_set_source_surface (cr, image, 0, 0);
//cairo_paint(cr);
releasePattern(brush);
updateMatrix();
}
}
/* Scale the matrix so the largest absolute value of the non
* translation components is 1.0. Return the scale required to restore
* the matrix to the original values.
*
* eg the matrix [ 100 0 0 50 20 10 ]
*
* is rescaled to [ 1 0 0 0.5 0.2 0.1 ]
* and the scale returned is 100
*/
static void
_cairo_matrix_factor_out_scale (cairo_matrix_t *m, double *scale)
{
double s;
s = fabs (m->xx);
if (fabs (m->xy) > s)
s = fabs (m->xy);
if (fabs (m->yx) > s)
s = fabs (m->yx);
if (fabs (m->yy) > s)
s = fabs (m->yy);
*scale = s;
s = 1.0/s;
cairo_matrix_scale (m, s, s);
}
void Context::copySurface( const SurfaceBase &surface, const Area &srcArea, const Rectf &dstRect )
{
if( ( dstRect.getWidth() == 0 ) || ( dstRect.getHeight() == 0 ) )
return;
save();
cairo_set_source_surface( mCairo, const_cast<SurfaceBase&>( surface ).getCairoSurface(), 0, 0 );
cairo_pattern_t *sourcePattern = cairo_get_source( mCairo );
cairo_matrix_t m;
cairo_matrix_init_identity( &m );
cairo_matrix_scale( &m, srcArea.getWidth() / (float)dstRect.getWidth(), srcArea.getHeight() / (float)dstRect.getHeight() );
cairo_matrix_translate( &m, srcArea.getX1() - dstRect.getX1(), srcArea.getY1() - dstRect.getY1() );
cairo_pattern_set_matrix( sourcePattern, &m );
cairo_rectangle( mCairo, dstRect.getX1(), dstRect.getY1(), dstRect.getWidth(), dstRect.getHeight() );
cairo_fill( mCairo );
restore();
}