sem_success sem_render_default_style(sem_render_style* style) {
style->canvas = cairo_pattern_create_rgb(0.0, 0.53125, 0.26525);
style->track_front_color = cairo_pattern_create_rgb(0.53125, 0.796875, 0.796875);
style->points_highlight_color = cairo_pattern_create_rgb(0.2, 1.0, 1.0);
style->buffer_color = cairo_pattern_create_rgb(1.0, 0.2, 0.2);
style->signal_red = cairo_pattern_create_rgb(1.0, 0.2, 0.2);
style->signal_amber = cairo_pattern_create_rgb(1.0, 0.75, 0.0);
style->signal_green = cairo_pattern_create_rgb(0.0, 1.0, 0.0);
style->station_color = cairo_pattern_create_rgb(0.26667, 0.26667, 0.26667);
style->siding_color = cairo_pattern_create_rgb(0.2588, 0.3412, 0.4784);
style->track_back_width = 0.2;
style->track_front_width = 0.1;
style->track_crossing_width = 0.04;
style->station_front_width = 0.3;
style->depot_back_width = 0.5;
style->depot_front_width = 0.4;
style->points_highlight_width = 0.05;
style->signal_main_radius = 0.18;
style->signal_main_offset = 0.26;
style->signal_main_manual_extra_radius = 0.0625;
style->signal_main_manual_extra_offset_x = 0.35;
style->signal_main_manual_extra_offset_y = 0.26;
style->signal_main_manual_rect_width = style->signal_main_manual_extra_offset_x*2;
style->signal_main_manual_rect_height = style->signal_main_manual_extra_offset_y*2;
style->signal_main_manual_rect_radius = 0.35;
style->signal_sub_major_width = 0.3;
style->signal_sub_major_height = 0.2;
style->signal_sub_minor_width = 0.22;
style->signal_sub_minor_height = 0.15;
style->buffer_size = 0.4;
return SEM_OK;
}
static void
window_draw_decorations(struct window *window)
{
cairo_t *cr;
cairo_text_extents_t extents;
cairo_pattern_t *outline, *bright, *dim;
cairo_surface_t *frame;
int width, height, shadow_dx = 3, shadow_dy = 3;
window_create_surface(window);
width = window->allocation.width;
height = window->allocation.height;
outline = cairo_pattern_create_rgb(0.1, 0.1, 0.1);
bright = cairo_pattern_create_rgb(0.8, 0.8, 0.8);
dim = cairo_pattern_create_rgb(0.4, 0.4, 0.4);
cr = cairo_create(window->cairo_surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0);
cairo_paint(cr);
cairo_set_source_rgba(cr, 0, 0, 0, 0.6);
tile_mask(cr, window->display->shadow,
shadow_dx, shadow_dy, width, height,
window->margin + 10 - shadow_dx,
window->margin + 10 - shadow_dy);
if (window->keyboard_device)
frame = window->display->active_frame;
else
frame = window->display->inactive_frame;
tile_source(cr, frame, 0, 0, width, height,
window->margin + 10, window->margin + 50);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_font_size(cr, 14);
cairo_text_extents(cr, window->title, &extents);
cairo_move_to(cr, (width - extents.width) / 2, 32 - extents.y_bearing);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_set_line_width (cr, 4);
if (window->keyboard_device)
cairo_set_source_rgb(cr, 0, 0, 0);
else
cairo_set_source_rgb(cr, 0.8, 0.8, 0.8);
cairo_show_text(cr, window->title);
cairo_destroy(cr);
cairo_device_flush (window->display->device);
}
static void
cinnamon_tray_manager_child_on_realize (GtkWidget *widget,
CinnamonTrayManagerChild *child)
{
/* If the tray child is using an RGBA colormap (and so we have real
* transparency), we don't need to worry about the background. If
* not, we obey the bg-color property by creating a cairo pattern of
* that color and setting it as our background. Then "parent-relative"
* background on the socket and the plug within that will cause
* the icons contents to appear on top of our background color.
*/
if (!na_tray_child_has_alpha (NA_TRAY_CHILD (child->socket)))
{
ClutterColor color = child->manager->priv->bg_color;
cairo_pattern_t *bg_pattern;
bg_pattern = cairo_pattern_create_rgb (color.red / 255.,
color.green / 255.,
color.blue / 255.);
gdk_window_set_background_pattern (gtk_widget_get_window (widget),
bg_pattern);
cairo_pattern_destroy (bg_pattern);
}
}
static int new_SolidPattern (lua_State *L)
{
double red;
double green;
double blue;
double alpha;
cairo_pattern_t* cp = NULL;
lua_remove(L, 1); // remove cairo.SolidPattern
//{"create_rgb", l_cairo_pattern_create_rgb},
//{"create_rgba", l_cairo_pattern_create_rgba},
red = luaL_checknumber(L, 1);
green = luaL_checknumber(L, 2);
blue = luaL_checknumber(L, 3);
alpha = luaL_optnumber(L, 4, -1);
if (alpha < 0)
cp = cairo_pattern_create_rgb (red, green, blue);
else
cp = cairo_pattern_create_rgba (red, green, blue, alpha);
return new_Pattern(L, LUACAIRO ".SolidPattern.mt", cp, CAIRO_PATTERN_TYPE_SOLID, 1);
}
static cairo_pattern_t *
sp_paint_server_create_dummy_pattern(SPPaintServer */*ps*/,
cairo_t */* ct */,
Geom::OptRect const &/*bbox*/,
double /* opacity */)
{
cairo_pattern_t *cp = cairo_pattern_create_rgb(1.0, 0.0, 1.0);
return cp;
}
int l_cairo_pattern_create_rgb(lua_State * L)
{
double red = luaL_checknumber(L, 1);
double green = luaL_checknumber(L, 2);
double blue = luaL_checknumber(L, 3);
cairo_pattern_t ** pattern = lua_newuserdata(L, sizeof(cairo_pattern_t *));
*pattern = cairo_pattern_create_rgb(red, green, blue);
luaL_setmetatable(L, MT_NAME_CAIRO_PATTERN);
return 1;
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_pattern_t *blue;
cairo_pattern_t *red;
blue = cairo_pattern_create_rgb (0.0, 0.0, 1.0);
red = cairo_pattern_create_rgb (1.0, 0.0, 0.0);
cairo_test_paint_checkered (cr);
fill_and_stroke_alpha (cr, rectangle, blue, red, 0.5);
cairo_translate (cr, SIZE + 2 * PAD, 0);
fill_and_stroke_alpha (cr, circle, red, blue, 0.5);
cairo_pattern_destroy (blue);
cairo_pattern_destroy (red);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
cairo_test_context_t ctx;
cairo_surface_t *surface;
cairo_pattern_t *solid_rgb, *solid_rgba, *surface_pattern, *linear, *radial;
cairo_test_status_t result = CAIRO_TEST_SUCCESS;
cairo_test_init (&ctx, "pattern-get-type");
cairo_test_log (&ctx, "Creating patterns of all types\n");
solid_rgb = cairo_pattern_create_rgb (0.0, 0.1, 0.2);
solid_rgba = cairo_pattern_create_rgba (0.3, 0.4, 0.5, 0.6);
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
1, 1);
surface_pattern = cairo_pattern_create_for_surface (surface);
linear = cairo_pattern_create_linear (0.0, 0.0, 10.0, 10.0);
radial = cairo_pattern_create_radial (10.0, 10.0, 0.1,
10.0, 10.0, 1.0);
cairo_test_log (&ctx, "Verifying return values of cairo_pattern_get_type\n");
if (cairo_pattern_get_type (solid_rgb) != CAIRO_PATTERN_TYPE_SOLID)
result = CAIRO_TEST_FAILURE;
if (cairo_pattern_get_type (solid_rgba) != CAIRO_PATTERN_TYPE_SOLID)
result = CAIRO_TEST_FAILURE;
if (cairo_pattern_get_type (surface_pattern) != CAIRO_PATTERN_TYPE_SURFACE)
result = CAIRO_TEST_FAILURE;
if (cairo_pattern_get_type (linear) != CAIRO_PATTERN_TYPE_LINEAR)
result = CAIRO_TEST_FAILURE;
if (cairo_pattern_get_type (radial) != CAIRO_PATTERN_TYPE_RADIAL)
result = CAIRO_TEST_FAILURE;
cairo_test_log (&ctx, "Cleaning up\n");
cairo_pattern_destroy (solid_rgb);
cairo_pattern_destroy (solid_rgba);
cairo_pattern_destroy (surface_pattern);
cairo_surface_destroy (surface);
cairo_pattern_destroy (linear);
cairo_pattern_destroy (radial);
cairo_test_fini (&ctx);
return result;
}
virtual pattern_attached_t create_detached
(double r, double g, double b, double a = -1) const {
pattern_attached_t detached = 0;
if ((a < 0)) {
if (!(detached = cairo_pattern_create_rgb(r,g,b))) {
LAMNA_LOG_ERROR("failed on cairo_pattern_create_rgb()");
}
} else {
if (!(a > 1)) {
if (!(detached = cairo_pattern_create_rgba(r,g,b,a))) {
LAMNA_LOG_ERROR("failed on cairo_pattern_create_rgba()");
}
}
}
return detached;
}
static int cairo_pattern_create_rgb_l( lua_State* L )
{
double red = luaL_checknumber( L, 1 );
double green = luaL_checknumber( L, 2 );
double blue = luaL_checknumber( L, 3 );
lua_cairo_pattern_t* lcp = (lua_cairo_pattern_t*)lua_newuserdata( L, sizeof( lua_cairo_pattern_t ) );
memset( lcp, 0, sizeof( lua_cairo_pattern_t ) );
luaL_getmetatable( L, "lua_cairo_pattern_t" );
lua_setmetatable( L, -2 );
lcp->pattern = cairo_pattern_create_rgb( red, green, blue );
return( 1 );
}
void icCanvasManager::CanvasView::draw(cairo_t *ctxt, cairo_rectangle_list_t *rectList) {
auto clear_ptn = cairo_pattern_create_rgb(1.0f, 1.0f, 1.0f);
//Phase 0: Clear the surface
cairo_save(ctxt);
cairo_set_source(ctxt, clear_ptn);
cairo_paint(ctxt);
cairo_pattern_destroy(clear_ptn);
for (int i = 0; i < rectList->num_rectangles; i++) {
this->request_tiles(&rectList->rectangles[i]);
}
for (int i = 0; i < rectList->num_rectangles; i++) {
this->draw_tiles(ctxt, &rectList->rectangles[i]);
}
cairo_restore(ctxt);
};
value lime_cairo_pattern_create_rgb (double r, double g, double b) {
cairo_pattern_t* pattern = cairo_pattern_create_rgb (r, g, b);
return CFFIPointer (pattern, gc_cairo_pattern);
}
double lime_cairo_pattern_create_rgb (double r, double g, double b) {
return (intptr_t)cairo_pattern_create_rgb (r, g, b);
}
static VALUE
cr_solid_pattern_initialize (int argc, VALUE *argv, VALUE self)
{
VALUE red, green, blue, alpha;
int n;
cairo_pattern_t *pattern;
n = rb_scan_args (argc, argv, "13", &red, &green, &blue, &alpha);
if (n == 1)
{
VALUE color = red;
color = cr_color_parse (color);
if (rb_cairo__is_kind_of (color, rb_cCairo_Color_Base))
red = rb_funcall (rb_funcall (color, id_to_rgb, 0), id_to_a, 0);
}
if (n == 1 && rb_cairo__is_kind_of (red, rb_cArray) &&
(RARRAY_LEN (red) == 3 || RARRAY_LEN (red) == 4))
{
VALUE ary = red;
n = RARRAY_LEN (ary);
red = rb_ary_entry (ary, 0);
green = rb_ary_entry (ary, 1);
blue = rb_ary_entry (ary, 2);
alpha = rb_ary_entry (ary, 3);
}
if (n == 3)
{
pattern = cairo_pattern_create_rgb (NUM2DBL (red),
NUM2DBL (green),
NUM2DBL (blue));
}
else if (n == 4)
{
pattern = cairo_pattern_create_rgba (NUM2DBL (red),
NUM2DBL (green),
NUM2DBL (blue),
NUM2DBL (alpha));
}
else
{
VALUE inspected;
inspected = rb_funcall (argc == 1 ? red : rb_ary_new4 (argc, argv),
id_inspect, 0);
rb_raise (rb_eArgError,
"invalid argument: %s (expect "
"(color_name), "
"(color_hex_triplet), "
"(Cairo::Color::RGB), "
"(Cairo::Color::CMYK), "
"(Cairo::Color::HSV), "
"(red, green, blue), "
"([red, green, blue]), "
"(red, green, blue, alpha) or "
"([red, green, blue, alpha])"
")",
RVAL2CSTR (inspected));
}
cr_pattern_check_status (pattern);
DATA_PTR (self) = pattern;
return Qnil;
}
gboolean draw_callback
(GtkWidget *widget, GdkEventExpose *event, UNUSED gpointer data)
{
guint width, height;
cairo_pattern_t *color;
cairo_path_t *bolt, *fill, *text;
// Grab our widget size
width = widget->allocation.width;
height = widget->allocation.height;
// Set up Cairo
cairo_t *cr = gdk_cairo_create(widget->window);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_BEST);
// Clear canvas
#ifdef BACKGROUND_FILL_ENTIRE_WIDGET
cairo_rectangle(cr, 0, 0, width, height);
#else
cairo_rectangle(cr, (MARGIN / 2) + STROKE_WIDTH, (MARGIN / 2) + STROKE_WIDTH, BATTERY_WIDTH, BATTERY_HEIGHT);
#endif
cairo_set_source_rgba(cr, COLOR_BACKGROUND, OPACITY_BACKGROUND);
cairo_fill(cr);
// Decide on a color
color = cairo_pattern_create_rgb(COLOR_DEFAULT);
if (battery_get_charging())
color = cairo_pattern_create_rgb(COLOR_CHARGING);
if (battery_get_critical())
color = cairo_pattern_create_rgb(COLOR_CRITICAL);
battery_border_draw(cr, color, (int)CENTERED(width, BATTERY_WIDTH),
(int)CENTERED(height, BATTERY_HEIGHT),
BATTERY_WIDTH,
BATTERY_HEIGHT,
STROKE_WIDTH,
PEG_WIDTH,
PEG_HEIGHT);
int fill_x = CENTERED(width, BATTERY_WIDTH);
int fill_y = CENTERED(height, BATTERY_HEIGHT);
// Set fill style
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
// Generate battery fill
fill = battery_fill_generate(BATTERY_WIDTH, BATTERY_HEIGHT, battery_get_percent());
cairo_translate(cr, fill_x, fill_y);
cairo_append_path(cr, fill);
if (battery_get_charging()) {
int bolt_x = CENTERED(BATTERY_WIDTH, BOLT_WIDTH);
int bolt_y = CENTERED(BATTERY_HEIGHT, BOLT_HEIGHT);
cairo_translate(cr, bolt_x, bolt_y);
bolt = battery_bolt_generate(BOLT_WIDTH, BOLT_HEIGHT);
cairo_append_path(cr, bolt);
cairo_translate(cr, bolt_x, bolt_y);
} else {
cairo_text_extents_t extents;
char strpercent[5];
snprintf(strpercent, 5, "%i%%", (int)(battery_get_percent() * 100));
cairo_select_font_face(cr, FONT_FACE, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cr, FONT_SIZE);
cairo_text_extents(cr, strpercent, &extents);
int text_x = CENTERED(BATTERY_WIDTH, extents.width);
int text_y = CENTERED(BATTERY_HEIGHT, extents.height + extents.y_bearing*2);
text = battery_text_generate(strpercent, FONT_FACE, FONT_SIZE);
cairo_translate(cr, text_x, text_y);
cairo_append_path(cr, text);
cairo_translate(cr, -text_x, -text_y);
}
cairo_translate(cr, -fill_x, -fill_y);
cairo_set_source(cr, color);
cairo_fill(cr);
return FALSE;
}
static void _GraphicsScreen_cellArrayOrImage (GraphicsScreen me, double **z_float, double_rgbt **z_rgbt, unsigned char **z_byte,
long ix1, long ix2, long x1DC, long x2DC,
long iy1, long iy2, long y1DC, long y2DC,
double minimum, double maximum,
long clipx1, long clipx2, long clipy1, long clipy2, int interpolate)
{
/*long t=clock();*/
long nx = ix2 - ix1 + 1; /* The number of cells along the horizontal axis. */
long ny = iy2 - iy1 + 1; /* The number of cells along the vertical axis. */
double dx = (double) (x2DC - x1DC) / (double) nx; /* Horizontal pixels per cell. Positive. */
double dy = (double) (y2DC - y1DC) / (double) ny; /* Vertical pixels per cell. Negative. */
double scale = 255.0 / (maximum - minimum), offset = 255.0 + minimum * scale;
if (x2DC <= x1DC || y1DC <= y2DC) return;
trace ("scale %f", scale);
/* Clip by the intersection of the world window and the outline of the cells. */
//Melder_casual ("clipy1 %ld clipy2 %ld", clipy1, clipy2);
if (clipx1 < x1DC) clipx1 = x1DC;
if (clipx2 > x2DC) clipx2 = x2DC;
if (clipy1 > y1DC) clipy1 = y1DC;
if (clipy2 < y2DC) clipy2 = y2DC;
/*
* The first decision is whether we are going to use the standard rectangle drawing
* (cellArray only), or whether we are going to write into a bitmap.
* The standard drawing is best for small numbers of cells,
* provided that some cells are larger than a pixel.
*/
if (! interpolate && nx * ny < 3000 && (dx > 1.0 || dy < -1.0)) {
try {
/*unsigned int cellWidth = (unsigned int) dx + 1;*/
unsigned int cellHeight = (unsigned int) (- (int) dy) + 1;
long ix, iy;
#if cairo
cairo_pattern_t *grey [256];
for (int igrey = 0; igrey < sizeof (grey) / sizeof (*grey); igrey ++) {
double v = igrey / ((double) (sizeof (grey) / sizeof (*grey)) - 1.0);
grey [igrey] = cairo_pattern_create_rgb (v, v, v);
}
#elif win
static HBRUSH greyBrush [256];
RECT rect;
if (! greyBrush [0])
for (int igrey = 0; igrey <= 255; igrey ++)
greyBrush [igrey] = CreateSolidBrush (RGB (igrey, igrey, igrey)); // once
#elif mac
GraphicsQuartz_initDraw (me);
CGContextSetAlpha (my d_macGraphicsContext, 1.0);
CGContextSetBlendMode (my d_macGraphicsContext, kCGBlendModeNormal);
#endif
autoNUMvector <long> lefts (ix1, ix2 + 1);
for (ix = ix1; ix <= ix2 + 1; ix ++)
lefts [ix] = x1DC + (long) ((ix - ix1) * dx);
for (iy = iy1; iy <= iy2; iy ++) {
long bottom = y1DC + (long) ((iy - iy1) * dy), top = bottom - cellHeight;
if (top > clipy1 || bottom < clipy2) continue;
if (top < clipy2) top = clipy2;
if (bottom > clipy1) bottom = clipy1;
#if win
rect. bottom = bottom; rect. top = top;
#endif
for (ix = ix1; ix <= ix2; ix ++) {
long left = lefts [ix], right = lefts [ix + 1];
if (right < clipx1 || left > clipx2) continue;
if (left < clipx1) left = clipx1;
if (right > clipx2) right = clipx2;
if (z_rgbt) {
#if cairo
// NYI
#elif win
// NYI
#elif mac
double red = z_rgbt [iy] [ix]. red;
double green = z_rgbt [iy] [ix]. green;
double blue = z_rgbt [iy] [ix]. blue;
double transparency = z_rgbt [iy] [ix]. transparency;
red = ( red <= 0.0 ? 0.0 : red >= 1.0 ? 1.0 : red );
green = ( green <= 0.0 ? 0.0 : green >= 1.0 ? 1.0 : green );
blue = ( blue <= 0.0 ? 0.0 : blue >= 1.0 ? 1.0 : blue );
CGContextSetRGBFillColor (my d_macGraphicsContext, red, green, blue, 1.0 - transparency);
CGContextFillRect (my d_macGraphicsContext, CGRectMake (left, top, right - left, bottom - top));
#endif
} else {
#if cairo
long value = offset - scale * ( z_float ? z_float [iy] [ix] : z_byte [iy] [ix] );
cairo_set_source (my d_cairoGraphicsContext, grey [value <= 0 ? 0 : value >= sizeof (grey) / sizeof (*grey) ? sizeof (grey) / sizeof (*grey) : value]);
cairo_rectangle (my d_cairoGraphicsContext, left, top, right - left, bottom - top);
cairo_fill (my d_cairoGraphicsContext);
#elif win
long value = offset - scale * ( z_float ? z_float [iy] [ix] : z_byte [iy] [ix] );
rect. left = left; rect. right = right;
FillRect (my d_gdiGraphicsContext, & rect, greyBrush [value <= 0 ? 0 : value >= 255 ? 255 : value]);
#elif mac
double value = offset - scale * ( z_float ? z_float [iy] [ix] : z_byte [iy] [ix] );
double igrey = ( value <= 0 ? 0 : value >= 255 ? 255 : value ) / 255.0;
CGContextSetRGBFillColor (my d_macGraphicsContext, igrey, igrey, igrey, 1.0);
CGContextFillRect (my d_macGraphicsContext, CGRectMake (left, top, right - left, bottom - top));
#endif
}
}
}
#if cairo
for (int igrey = 0; igrey < sizeof (grey) / sizeof (*grey); igrey ++)
cairo_pattern_destroy (grey [igrey]);
#elif mac
CGContextSetRGBFillColor (my d_macGraphicsContext, 0.0, 0.0, 0.0, 1.0);
GraphicsQuartz_exitDraw (me);
#endif
} catch (MelderError) { }
} else {
long xDC, yDC;
long undersampling = 1;
/*
* Prepare for off-screen bitmap drawing.
*/
#if cairo
long arrayWidth = clipx2 - clipx1;
long arrayHeight = clipy1 - clipy2;
trace ("arrayWidth %f, arrayHeight %f", (double) arrayWidth, (double) arrayHeight);
cairo_surface_t *sfc = cairo_image_surface_create (CAIRO_FORMAT_RGB24, arrayWidth, arrayHeight);
unsigned char *bits = cairo_image_surface_get_data (sfc);
int scanLineLength = cairo_image_surface_get_stride (sfc);
unsigned char grey [256];
trace ("image surface address %p, bits address %p, scanLineLength %d, numberOfGreys %d", sfc, bits, scanLineLength, sizeof(grey)/sizeof(*grey));
for (int igrey = 0; igrey < sizeof (grey) / sizeof (*grey); igrey++)
grey [igrey] = 255 - (unsigned char) (igrey * 255.0 / (sizeof (grey) / sizeof (*grey) - 1));
#elif win
long bitmapWidth = clipx2 - clipx1, bitmapHeight = clipy1 - clipy2;
int igrey;
/*
* Create a device-independent bitmap, 32 bits deep.
*/
struct { BITMAPINFOHEADER header; } bitmapInfo;
long scanLineLength = bitmapWidth * 4; // for 24 bits: (bitmapWidth * 3 + 3) & ~3L;
HBITMAP bitmap;
unsigned char *bits; // a pointer to memory allocated by VirtualAlloc or by CreateDIBSection ()
bitmapInfo. header.biSize = sizeof (BITMAPINFOHEADER);
bitmapInfo. header.biWidth = bitmapWidth; // scanLineLength;
bitmapInfo. header.biHeight = bitmapHeight;
bitmapInfo. header.biPlanes = 1;
bitmapInfo. header.biBitCount = 32;
bitmapInfo. header.biCompression = 0;
bitmapInfo. header.biSizeImage = 0;
bitmapInfo. header.biXPelsPerMeter = 0;
bitmapInfo. header.biYPelsPerMeter = 0;
bitmapInfo. header.biClrUsed = 0;
bitmapInfo. header.biClrImportant = 0;
bitmap = CreateDIBSection (my d_gdiGraphicsContext /* ignored */, (CONST BITMAPINFO *) & bitmapInfo,
DIB_RGB_COLORS, (VOID **) & bits, NULL, 0);
#elif mac
long bytesPerRow = (clipx2 - clipx1) * 4;
Melder_assert (bytesPerRow > 0);
long numberOfRows = clipy1 - clipy2;
Melder_assert (numberOfRows > 0);
unsigned char *imageData = Melder_malloc_f (unsigned char, bytesPerRow * numberOfRows);
#endif
/*
* Draw into the bitmap.
*/
#if cairo
#define ROW_START_ADDRESS (bits + (clipy1 - 1 - yDC) * scanLineLength)
#define PUT_PIXEL \
if (1) { \
unsigned char kar = value <= 0 ? 0 : value >= 255 ? 255 : (int) value; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = 0; \
}
#elif win
#define ROW_START_ADDRESS (bits + (clipy1 - 1 - yDC) * scanLineLength)
#define PUT_PIXEL \
if (1) { \
unsigned char kar = value <= 0 ? 0 : value >= 255 ? 255 : (int) value; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = 0; \
}
#elif mac
#define ROW_START_ADDRESS (imageData + (clipy1 - 1 - yDC) * bytesPerRow)
#define PUT_PIXEL \
if (my colourScale == kGraphics_colourScale_GREY) { \
unsigned char kar = value <= 0 ? 0 : value >= 255 ? 255 : (int) value; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = kar; \
*pixelAddress ++ = 0; \
} else if (my colourScale == kGraphics_colourScale_BLUE_TO_RED) { \
if (value < 0.0) { \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 63; \
*pixelAddress ++ = 0; \
} else if (value < 64.0) { \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = (int) (value * 3 + 63.999); \
*pixelAddress ++ = 0; \
} else if (value < 128.0) { \
*pixelAddress ++ = (int) (value * 4 - 256.0); \
*pixelAddress ++ = (int) (value * 4 - 256.0); \
*pixelAddress ++ = 255; \
*pixelAddress ++ = 0; \
} else if (value < 192.0) { \
*pixelAddress ++ = 255; \
*pixelAddress ++ = (int) ((256.0 - value) * 4 - 256.0); \
*pixelAddress ++ = (int) ((256.0 - value) * 4 - 256.0); \
*pixelAddress ++ = 0; \
} else if (value < 256.0) { \
*pixelAddress ++ = (int) ((256.0 - value) * 3 + 63.999); \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
} else { \
*pixelAddress ++ = 63; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
*pixelAddress ++ = 0; \
} \
}
#else
#define ROW_START_ADDRESS NULL
#define PUT_PIXEL
#endif
if (interpolate) {
try {
autoNUMvector <long> ileft (clipx1, clipx2);
autoNUMvector <long> iright (clipx1, clipx2);
autoNUMvector <double> rightWeight (clipx1, clipx2);
autoNUMvector <double> leftWeight (clipx1, clipx2);
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double ix_real = ix1 - 0.5 + ((double) nx * (xDC - x1DC)) / (x2DC - x1DC);
ileft [xDC] = floor (ix_real), iright [xDC] = ileft [xDC] + 1;
rightWeight [xDC] = ix_real - ileft [xDC], leftWeight [xDC] = 1.0 - rightWeight [xDC];
if (ileft [xDC] < ix1) ileft [xDC] = ix1;
if (iright [xDC] > ix2) iright [xDC] = ix2;
}
for (yDC = clipy2; yDC < clipy1; yDC += undersampling) {
double iy_real = iy2 + 0.5 - ((double) ny * (yDC - y2DC)) / (y1DC - y2DC);
long itop = ceil (iy_real), ibottom = itop - 1;
double bottomWeight = itop - iy_real, topWeight = 1.0 - bottomWeight;
unsigned char *pixelAddress = ROW_START_ADDRESS;
if (itop > iy2) itop = iy2;
if (ibottom < iy1) ibottom = iy1;
if (z_float) {
double *ztop = z_float [itop], *zbottom = z_float [ibottom];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double interpol =
rightWeight [xDC] *
(topWeight * ztop [iright [xDC]] + bottomWeight * zbottom [iright [xDC]]) +
leftWeight [xDC] *
(topWeight * ztop [ileft [xDC]] + bottomWeight * zbottom [ileft [xDC]]);
double value = offset - scale * interpol;
PUT_PIXEL
}
} else if (z_rgbt) {
double_rgbt *ztop = z_rgbt [itop], *zbottom = z_rgbt [ibottom];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double red =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. red + bottomWeight * zbottom [iright [xDC]]. red) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. red + bottomWeight * zbottom [ileft [xDC]]. red);
double green =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. green + bottomWeight * zbottom [iright [xDC]]. green) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. green + bottomWeight * zbottom [ileft [xDC]]. green);
double blue =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. blue + bottomWeight * zbottom [iright [xDC]]. blue) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. blue + bottomWeight * zbottom [ileft [xDC]]. blue);
double transparency =
rightWeight [xDC] * (topWeight * ztop [iright [xDC]]. transparency + bottomWeight * zbottom [iright [xDC]]. transparency) +
leftWeight [xDC] * (topWeight * ztop [ileft [xDC]]. transparency + bottomWeight * zbottom [ileft [xDC]]. transparency);
if (red < 0.0) red = 0.0; else if (red > 1.0) red = 1.0;
if (green < 0.0) green = 0.0; else if (green > 1.0) green = 1.0;
if (blue < 0.0) blue = 0.0; else if (blue > 1.0) blue = 1.0;
if (transparency < 0.0) transparency = 0.0; else if (transparency > 1.0) transparency = 1.0;
#if win
*pixelAddress ++ = blue * 255.0;
*pixelAddress ++ = green * 255.0;
*pixelAddress ++ = red * 255.0;
*pixelAddress ++ = 0;
#elif mac
*pixelAddress ++ = red * 255.0;
*pixelAddress ++ = green * 255.0;
*pixelAddress ++ = blue * 255.0;
*pixelAddress ++ = transparency * 255.0;
#elif cairo
*pixelAddress ++ = blue * 255.0;
*pixelAddress ++ = green * 255.0;
*pixelAddress ++ = red * 255.0;
*pixelAddress ++ = transparency * 255.0;
#endif
}
} else {
unsigned char *ztop = z_byte [itop], *zbottom = z_byte [ibottom];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double interpol =
rightWeight [xDC] *
(topWeight * ztop [iright [xDC]] + bottomWeight * zbottom [iright [xDC]]) +
leftWeight [xDC] *
(topWeight * ztop [ileft [xDC]] + bottomWeight * zbottom [ileft [xDC]]);
double value = offset - scale * interpol;
PUT_PIXEL
}
}
}
} catch (MelderError) { Melder_clearError (); }
} else {
try {
autoNUMvector <long> ix (clipx1, clipx2);
for (xDC = clipx1; xDC < clipx2; xDC += undersampling)
ix [xDC] = floor (ix1 + (nx * (xDC - x1DC)) / (x2DC - x1DC));
for (yDC = clipy2; yDC < clipy1; yDC += undersampling) {
long iy = ceil (iy2 - (ny * (yDC - y2DC)) / (y1DC - y2DC));
unsigned char *pixelAddress = ROW_START_ADDRESS;
Melder_assert (iy >= iy1 && iy <= iy2);
if (z_float) {
double *ziy = z_float [iy];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double value = offset - scale * ziy [ix [xDC]];
PUT_PIXEL
}
} else {
unsigned char *ziy = z_byte [iy];
for (xDC = clipx1; xDC < clipx2; xDC += undersampling) {
double value = offset - scale * ziy [ix [xDC]];
PUT_PIXEL
}
}
}
} catch (MelderError) { Melder_clearError (); }
}
/*
* Copy the bitmap to the screen.
*/
#if cairo
cairo_matrix_t clip_trans;
cairo_matrix_init_identity (& clip_trans);
cairo_matrix_scale (& clip_trans, 1, -1); // we painted in the reverse y-direction
cairo_matrix_translate (& clip_trans, - clipx1, - clipy1);
cairo_pattern_t *bitmap_pattern = cairo_pattern_create_for_surface (sfc);
trace ("bitmap pattern %p", bitmap_pattern);
if (cairo_status_t status = cairo_pattern_status (bitmap_pattern)) {
Melder_casual ("bitmap pattern status: %s", cairo_status_to_string (status));
} else {
cairo_pattern_set_matrix (bitmap_pattern, & clip_trans);
cairo_save (my d_cairoGraphicsContext);
cairo_set_source (my d_cairoGraphicsContext, bitmap_pattern);
cairo_paint (my d_cairoGraphicsContext);
cairo_restore (my d_cairoGraphicsContext);
}
cairo_pattern_destroy (bitmap_pattern);
#elif win
SetDIBitsToDevice (my d_gdiGraphicsContext, clipx1, clipy2, bitmapWidth, bitmapHeight, 0, 0, 0, bitmapHeight,
bits, (CONST BITMAPINFO *) & bitmapInfo, DIB_RGB_COLORS);
//StretchDIBits (my d_gdiGraphicsContext, clipx1, clipy2, bitmapWidth, bitmapHeight, 0, 0, 0, bitmapHeight,
// bits, (CONST BITMAPINFO *) & bitmapInfo, DIB_RGB_COLORS, SRCCOPY);
#elif mac
CGImageRef image;
static CGColorSpaceRef colourSpace = NULL;
if (colourSpace == NULL) {
colourSpace = CGColorSpaceCreateWithName (kCGColorSpaceGenericRGB); // used to be kCGColorSpaceUserRGB
Melder_assert (colourSpace != NULL);
}
if (1) {
CGDataProviderRef dataProvider = CGDataProviderCreateWithData (NULL,
imageData,
bytesPerRow * numberOfRows,
_mac_releaseDataCallback // we need this because we cannot release the image data immediately after drawing,
// because in PDF files the imageData has to stay available through EndPage
);
Melder_assert (dataProvider != NULL);
image = CGImageCreate (clipx2 - clipx1, numberOfRows,
8, 32, bytesPerRow, colourSpace, kCGImageAlphaNone, dataProvider, NULL, false, kCGRenderingIntentDefault);
CGDataProviderRelease (dataProvider);
} else if (0) {
Melder_assert (CGBitmapContextCreate != NULL);
CGContextRef bitmaptest = CGBitmapContextCreate (imageData, 100, 100,
8, 800, colourSpace, 0);
Melder_assert (bitmaptest != NULL);
CGContextRef bitmap = CGBitmapContextCreate (NULL/*imageData*/, clipx2 - clipx1, numberOfRows,
8, bytesPerRow, colourSpace, kCGImageAlphaLast);
Melder_assert (bitmap != NULL);
image = CGBitmapContextCreateImage (bitmap);
// release bitmap?
}
Melder_assert (image != NULL);
GraphicsQuartz_initDraw (me);
CGContextDrawImage (my d_macGraphicsContext, CGRectMake (clipx1, clipy2, clipx2 - clipx1, clipy1 - clipy2), image);
GraphicsQuartz_exitDraw (me);
//CGColorSpaceRelease (colourSpace);
CGImageRelease (image);
#endif
/*
* Clean up.
*/
#if cairo
cairo_surface_destroy (sfc);
#elif win
DeleteBitmap (bitmap);
#endif
}
PatternSolid::PatternSolid( const Color &color )
: Pattern( cairo_pattern_create_rgb( color.r, color.g, color.b ) )
{
}
