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ultimatepp/uppdev/plugin/cairo/lib/cairo-win32-printing-surface.c
cxl b5691c2c44 Sdraw... 
git-svn-id: svn://ultimatepp.org/upp/trunk@733 f0d560ea-af0d-0410-9eb7-867de7ffcac7
2009-01-06 22:20:15 +00:00

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/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
/* Cairo - a vector graphics library with display and print output
*
* Copyright © 2007 Adrian Johnson
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Adrian Johnson.
*
* Contributor(s):
* Adrian Johnson <ajohnson@redneon.com>
* Vladimir Vukicevic <vladimir@pobox.com>
*/
#define WIN32_LEAN_AND_MEAN
/* We require Windows 2000 features such as ETO_PDY */
#if !defined(WINVER) || (WINVER < 0x0500)
# define WINVER 0x0500
#endif
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
# define _WIN32_WINNT 0x0500
#endif
#include "cairoint.h"
#include "cairo-paginated-private.h"
#include "cairo-clip-private.h"
#include "cairo-win32-private.h"
#include "cairo-meta-surface-private.h"
#include "cairo-scaled-font-subsets-private.h"
#include <windows.h>
#if !defined(POSTSCRIPT_IDENTIFY)
# define POSTSCRIPT_IDENTIFY 0x1015
#endif
#if !defined(PSIDENT_GDICENTRIC)
# define PSIDENT_GDICENTRIC 0x0000
#endif
#if !defined(GET_PS_FEATURESETTING)
# define GET_PS_FEATURESETTING 0x1019
#endif
#if !defined(FEATURESETTING_PSLEVEL)
# define FEATURESETTING_PSLEVEL 0x0002
#endif
#if !defined(GRADIENT_FILL_RECT_H)
# define GRADIENT_FILL_RECT_H 0x00
#endif
#define PELS_72DPI ((LONG)(72. / 0.0254))
static const cairo_surface_backend_t cairo_win32_printing_surface_backend;
static const cairo_paginated_surface_backend_t cairo_win32_surface_paginated_backend;
static void
_cairo_win32_printing_surface_init_ps_mode (cairo_win32_surface_t *surface)
{
DWORD word;
INT ps_feature, ps_level;
word = PSIDENT_GDICENTRIC;
if (ExtEscape (surface->dc, POSTSCRIPT_IDENTIFY, sizeof(DWORD), (char *)&word, 0, (char *)NULL) <= 0)
return;
ps_feature = FEATURESETTING_PSLEVEL;
if (ExtEscape (surface->dc, GET_PS_FEATURESETTING, sizeof(INT),
(char *)&ps_feature, sizeof(INT), (char *)&ps_level) <= 0)
return;
if (ps_level >= 3)
surface->flags |= CAIRO_WIN32_SURFACE_CAN_RECT_GRADIENT;
}
static cairo_int_status_t
analyze_surface_pattern_transparency (cairo_surface_pattern_t *pattern)
{
cairo_image_surface_t *image;
void *image_extra;
cairo_int_status_t status;
int x, y;
status = _cairo_surface_acquire_source_image (pattern->surface,
&image,
&image_extra);
if (status)
return status;
if (image->base.status)
return image->base.status;
if (image->format == CAIRO_FORMAT_RGB24) {
status = CAIRO_STATUS_SUCCESS;
goto RELEASE_SOURCE;
}
if (image->format != CAIRO_FORMAT_ARGB32) {
/* If the surface does not support the image format, assume
* that it does have alpha. The image will be converted to
* rgb24 when the surface blends the image into the page
* color to remove the transparency. */
status = CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY;
goto RELEASE_SOURCE;
}
for (y = 0; y < image->height; y++) {
int a;
uint32_t *pixel = (uint32_t *) (image->data + y * image->stride);
for (x = 0; x < image->width; x++, pixel++) {
a = (*pixel & 0xff000000) >> 24;
if (a != 255) {
status = CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY;
goto RELEASE_SOURCE;
}
}
}
status = CAIRO_STATUS_SUCCESS;
RELEASE_SOURCE:
_cairo_surface_release_source_image (pattern->surface, image, image_extra);
return status;
}
static cairo_bool_t
surface_pattern_supported (const cairo_surface_pattern_t *pattern)
{
cairo_extend_t extend;
if (_cairo_surface_is_meta (pattern->surface))
return TRUE;
if (cairo_surface_get_type (pattern->surface) != CAIRO_SURFACE_TYPE_WIN32 &&
pattern->surface->backend->acquire_source_image == NULL)
{
return FALSE;
}
extend = cairo_pattern_get_extend ((cairo_pattern_t*)&pattern->base);
switch (extend) {
case CAIRO_EXTEND_NONE:
case CAIRO_EXTEND_REPEAT:
case CAIRO_EXTEND_REFLECT:
/* There's no point returning FALSE for EXTEND_PAD, as the image
* surface does not currently implement it either */
case CAIRO_EXTEND_PAD:
return TRUE;
}
ASSERT_NOT_REACHED;
return FALSE;
}
static cairo_bool_t
pattern_supported (cairo_win32_surface_t *surface, const cairo_pattern_t *pattern)
{
if (pattern->type == CAIRO_PATTERN_TYPE_SOLID)
return TRUE;
if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE)
return surface_pattern_supported ((const cairo_surface_pattern_t *) pattern);
if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR)
return surface->flags & CAIRO_WIN32_SURFACE_CAN_RECT_GRADIENT;
return FALSE;
}
static cairo_int_status_t
_cairo_win32_printing_surface_analyze_operation (cairo_win32_surface_t *surface,
cairo_operator_t op,
const cairo_pattern_t *pattern)
{
if (! pattern_supported (surface, pattern))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (!(op == CAIRO_OPERATOR_SOURCE ||
op == CAIRO_OPERATOR_OVER ||
op == CAIRO_OPERATOR_CLEAR))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) {
cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern;
if ( _cairo_surface_is_meta (surface_pattern->surface))
return CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN;
}
if (op == CAIRO_OPERATOR_SOURCE ||
op == CAIRO_OPERATOR_CLEAR)
return CAIRO_STATUS_SUCCESS;
/* CAIRO_OPERATOR_OVER is only supported for opaque patterns. If
* the pattern contains transparency, we return
* CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY to the analysis
* surface. If the analysis surface determines that there is
* anything drawn under this operation, a fallback image will be
* used. Otherwise the operation will be replayed during the
* render stage and we blend the transarency into the white
* background to convert the pattern to opaque.
*/
if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) {
cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern;
return analyze_surface_pattern_transparency (surface_pattern);
}
if (_cairo_pattern_is_opaque (pattern))
return CAIRO_STATUS_SUCCESS;
else
return CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY;
}
static cairo_bool_t
_cairo_win32_printing_surface_operation_supported (cairo_win32_surface_t *surface,
cairo_operator_t op,
const cairo_pattern_t *pattern)
{
if (_cairo_win32_printing_surface_analyze_operation (surface, op, pattern) != CAIRO_INT_STATUS_UNSUPPORTED)
return TRUE;
else
return FALSE;
}
static void
_cairo_win32_printing_surface_init_clear_color (cairo_win32_surface_t *surface,
cairo_solid_pattern_t *color)
{
if (surface->content == CAIRO_CONTENT_COLOR_ALPHA)
_cairo_pattern_init_solid (color, CAIRO_COLOR_WHITE, CAIRO_CONTENT_COLOR);
else
_cairo_pattern_init_solid (color, CAIRO_COLOR_BLACK, CAIRO_CONTENT_COLOR);
}
static COLORREF
_cairo_win32_printing_surface_flatten_transparency (cairo_win32_surface_t *surface,
const cairo_color_t *color)
{
COLORREF c;
BYTE red, green, blue;
red = color->red_short >> 8;
green = color->green_short >> 8;
blue = color->blue_short >> 8;
if (!CAIRO_COLOR_IS_OPAQUE(color)) {
if (surface->content == CAIRO_CONTENT_COLOR_ALPHA) {
/* Blend into white */
uint8_t one_minus_alpha = 255 - (color->alpha_short >> 8);
red = (color->red_short >> 8) + one_minus_alpha;
green = (color->green_short >> 8) + one_minus_alpha;
blue = (color->blue_short >> 8) + one_minus_alpha;
} else {
/* Blend into black */
red = (color->red_short >> 8);
green = (color->green_short >> 8);
blue = (color->blue_short >> 8);
}
}
c = RGB (red, green, blue);
return c;
}
static cairo_status_t
_cairo_win32_printing_surface_select_solid_brush (cairo_win32_surface_t *surface,
cairo_pattern_t *source)
{
cairo_solid_pattern_t *pattern = (cairo_solid_pattern_t *) source;
COLORREF color;
color = _cairo_win32_printing_surface_flatten_transparency (surface,
&pattern->color);
surface->brush = CreateSolidBrush (color);
if (!surface->brush)
return _cairo_win32_print_gdi_error ("_cairo_win32_surface_select_solid_brush(CreateSolidBrush)");
surface->old_brush = SelectObject (surface->dc, surface->brush);
return CAIRO_STATUS_SUCCESS;
}
static void
_cairo_win32_printing_surface_done_solid_brush (cairo_win32_surface_t *surface)
{
if (surface->old_brush) {
SelectObject (surface->dc, surface->old_brush);
DeleteObject (surface->brush);
surface->old_brush = NULL;
}
}
static cairo_status_t
_cairo_win32_printing_surface_get_ctm_clip_box (cairo_win32_surface_t *surface,
RECT *clip)
{
XFORM xform;
_cairo_matrix_to_win32_xform (&surface->ctm, &xform);
if (!SetWorldTransform (surface->dc, &xform))
return _cairo_win32_print_gdi_error ("_cairo_win32_printing_surface_get_clip_box:SetWorldTransform");
GetClipBox (surface->dc, clip);
if (!ModifyWorldTransform (surface->dc, &xform, MWT_IDENTITY))
return _cairo_win32_print_gdi_error ("_cairo_win32_printing_surface_get_clip_box:ModifyWorldTransform");
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_win32_printing_surface_paint_solid_pattern (cairo_win32_surface_t *surface,
cairo_pattern_t *pattern)
{
RECT clip;
cairo_status_t status;
GetClipBox (surface->dc, &clip);
status = _cairo_win32_printing_surface_select_solid_brush (surface, pattern);
if (status)
return status;
FillRect (surface->dc, &clip, surface->brush);
_cairo_win32_printing_surface_done_solid_brush (surface);
return 0;
}
static cairo_status_t
_cairo_win32_printing_surface_paint_meta_pattern (cairo_win32_surface_t *surface,
cairo_surface_pattern_t *pattern)
{
cairo_content_t old_content;
cairo_matrix_t old_ctm;
cairo_bool_t old_has_ctm;
cairo_rectangle_int_t meta_extents;
cairo_status_t status;
cairo_extend_t extend;
cairo_matrix_t p2d;
XFORM xform;
int x_tile, y_tile, left, right, top, bottom;
RECT clip;
cairo_surface_t *meta_surface = pattern->surface;
extend = cairo_pattern_get_extend (&pattern->base);
p2d = pattern->base.matrix;
status = cairo_matrix_invert (&p2d);
/* _cairo_pattern_set_matrix guarantees invertibility */
assert (status == CAIRO_STATUS_SUCCESS);
old_ctm = surface->ctm;
old_has_ctm = surface->has_ctm;
cairo_matrix_multiply (&p2d, &p2d, &surface->ctm);
surface->ctm = p2d;
SaveDC (surface->dc);
_cairo_matrix_to_win32_xform (&p2d, &xform);
status = _cairo_surface_get_extents (meta_surface, &meta_extents);
if (status)
return status;
status = _cairo_win32_printing_surface_get_ctm_clip_box (surface, &clip);
if (status)
return status;
if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) {
left = (int) floor((double)clip.left/meta_extents.width);
right = (int) ceil((double)clip.right/meta_extents.width);
top = (int) floor((double)clip.top/meta_extents.height);
bottom = (int) ceil((double)clip.bottom/meta_extents.height);
} else {
left = 0;
right = 1;
top = 0;
bottom = 1;
}
old_content = surface->content;
if (cairo_surface_get_content (meta_surface) == CAIRO_CONTENT_COLOR) {
cairo_pattern_t *source;
cairo_solid_pattern_t black;
surface->content = CAIRO_CONTENT_COLOR;
_cairo_pattern_init_solid (&black, CAIRO_COLOR_BLACK, CAIRO_CONTENT_COLOR);
source = (cairo_pattern_t*) &black;
_cairo_win32_printing_surface_paint_solid_pattern (surface, source);
}
for (y_tile = top; y_tile < bottom; y_tile++) {
for (x_tile = left; x_tile < right; x_tile++) {
cairo_matrix_t m;
double x, y;
SaveDC (surface->dc);
m = p2d;
cairo_matrix_translate (&m,
x_tile*meta_extents.width,
y_tile*meta_extents.height);
if (extend == CAIRO_EXTEND_REFLECT) {
if (x_tile % 2) {
cairo_matrix_translate (&m, meta_extents.width, 0);
cairo_matrix_scale (&m, -1, 1);
}
if (y_tile % 2) {
cairo_matrix_translate (&m, 0, meta_extents.height);
cairo_matrix_scale (&m, 1, -1);
}
}
surface->ctm = m;
surface->has_ctm = !_cairo_matrix_is_identity (&surface->ctm);
/* Set clip path around bbox of the pattern. */
BeginPath (surface->dc);
x = 0;
y = 0;
cairo_matrix_transform_point (&surface->ctm, &x, &y);
MoveToEx (surface->dc, (int) x, (int) y, NULL);
x = meta_extents.width;
y = 0;
cairo_matrix_transform_point (&surface->ctm, &x, &y);
LineTo (surface->dc, (int) x, (int) y);
x = meta_extents.width;
y = meta_extents.height;
cairo_matrix_transform_point (&surface->ctm, &x, &y);
LineTo (surface->dc, (int) x, (int) y);
x = 0;
y = meta_extents.height;
cairo_matrix_transform_point (&surface->ctm, &x, &y);
LineTo (surface->dc, (int) x, (int) y);
CloseFigure (surface->dc);
EndPath (surface->dc);
SelectClipPath (surface->dc, RGN_AND);
SaveDC (surface->dc); /* Allow clip path to be reset during replay */
status = _cairo_meta_surface_replay_region (meta_surface, &surface->base,
CAIRO_META_REGION_NATIVE);
assert (status != CAIRO_INT_STATUS_UNSUPPORTED);
/* Restore both the clip save and our earlier path SaveDC */
RestoreDC (surface->dc, -2);
if (status)
return status;
}
}
surface->content = old_content;
surface->ctm = old_ctm;
surface->has_ctm = old_has_ctm;
RestoreDC (surface->dc, -1);
return status;
}
static cairo_status_t
_cairo_win32_printing_surface_paint_image_pattern (cairo_win32_surface_t *surface,
cairo_surface_pattern_t *pattern)
{
cairo_status_t status;
cairo_extend_t extend;
cairo_surface_attributes_t pat_attr;
cairo_image_surface_t *image;
void *image_extra;
cairo_surface_t *opaque_surface;
cairo_image_surface_t *opaque_image = NULL;
BITMAPINFO bi;
cairo_matrix_t m;
int oldmode;
XFORM xform;
int x_tile, y_tile, left, right, top, bottom;
RECT clip;
const cairo_color_t *background_color;
/* If we can't use StretchDIBits with this surface, we can't do anything
* here.
*/
if (!(surface->flags & CAIRO_WIN32_SURFACE_CAN_STRETCHDIB))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (surface->content == CAIRO_CONTENT_COLOR_ALPHA)
background_color = CAIRO_COLOR_WHITE;
else
background_color = CAIRO_COLOR_BLACK;
extend = cairo_pattern_get_extend (&pattern->base);
status = _cairo_surface_acquire_source_image (pattern->surface,
&image, &image_extra);
if (status)
return status;
if (image->base.status) {
status = image->base.status;
goto CLEANUP_IMAGE;
}
if (image->width == 0 || image->height == 0) {
status = CAIRO_STATUS_SUCCESS;
goto CLEANUP_IMAGE;
}
if (image->format != CAIRO_FORMAT_RGB24) {
cairo_surface_pattern_t opaque_pattern;
opaque_surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
image->width,
image->height);
if (opaque_surface->status) {
status = opaque_surface->status;
goto CLEANUP_OPAQUE_IMAGE;
}
_cairo_pattern_init_for_surface (&opaque_pattern, &image->base);
status = _cairo_surface_fill_rectangle (opaque_surface,
CAIRO_OPERATOR_SOURCE,
background_color,
0, 0,
image->width, image->height);
if (status) {
_cairo_pattern_fini (&opaque_pattern.base);
goto CLEANUP_OPAQUE_IMAGE;
}
status = _cairo_surface_composite (CAIRO_OPERATOR_OVER,
&opaque_pattern.base,
NULL,
opaque_surface,
0, 0,
0, 0,
0, 0,
image->width,
image->height);
if (status) {
_cairo_pattern_fini (&opaque_pattern.base);
goto CLEANUP_OPAQUE_IMAGE;
}
_cairo_pattern_fini (&opaque_pattern.base);
opaque_image = (cairo_image_surface_t *) opaque_surface;
} else {
opaque_surface = &image->base;
opaque_image = image;
}
bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bi.bmiHeader.biWidth = opaque_image->width;
bi.bmiHeader.biHeight = -opaque_image->height;
bi.bmiHeader.biSizeImage = 0;
bi.bmiHeader.biXPelsPerMeter = PELS_72DPI;
bi.bmiHeader.biYPelsPerMeter = PELS_72DPI;
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 32;
bi.bmiHeader.biCompression = BI_RGB;
bi.bmiHeader.biClrUsed = 0;
bi.bmiHeader.biClrImportant = 0;
m = pattern->base.matrix;
status = cairo_matrix_invert (&m);
/* _cairo_pattern_set_matrix guarantees invertibility */
assert (status == CAIRO_STATUS_SUCCESS);
cairo_matrix_multiply (&m, &m, &surface->ctm);
SaveDC (surface->dc);
_cairo_matrix_to_win32_xform (&m, &xform);
if (! SetWorldTransform (surface->dc, &xform)) {
status = _cairo_win32_print_gdi_error ("_win32_scaled_font_set_world_transform");
goto CLEANUP_OPAQUE_IMAGE;
}
oldmode = SetStretchBltMode(surface->dc, HALFTONE);
GetClipBox (surface->dc, &clip);
if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) {
left = (int) floor((double)clip.left/opaque_image->width);
right = (int) ceil((double)clip.right/opaque_image->width);
top = (int) floor((double)clip.top/opaque_image->height);
bottom = (int) ceil((double)clip.bottom/opaque_image->height);
} else {
left = 0;
right = 1;
top = 0;
bottom = 1;
}
for (y_tile = top; y_tile < bottom; y_tile++) {
for (x_tile = left; x_tile < right; x_tile++) {
if (!StretchDIBits (surface->dc,
x_tile*opaque_image->width,
y_tile*opaque_image->height,
opaque_image->width,
opaque_image->height,
0,
0,
opaque_image->width,
opaque_image->height,
opaque_image->data,
&bi,
DIB_RGB_COLORS,
SRCCOPY))
{
status = _cairo_win32_print_gdi_error ("_cairo_win32_printing_surface_paint(StretchDIBits)");
goto CLEANUP_OPAQUE_IMAGE;
}
}
}
SetStretchBltMode(surface->dc, oldmode);
RestoreDC (surface->dc, -1);
CLEANUP_OPAQUE_IMAGE:
if (opaque_image != image)
cairo_surface_destroy (opaque_surface);
CLEANUP_IMAGE:
_cairo_surface_release_source_image (pattern->surface, image, image_extra);
return status;
}
static cairo_status_t
_cairo_win32_printing_surface_paint_surface_pattern (cairo_win32_surface_t *surface,
cairo_surface_pattern_t *pattern)
{
if (_cairo_surface_is_meta (pattern->surface)) {
return _cairo_win32_printing_surface_paint_meta_pattern (surface,
pattern);
} else {
return _cairo_win32_printing_surface_paint_image_pattern (surface,
pattern);
}
}
static void
vertex_set_color (TRIVERTEX *vert, cairo_color_t *color)
{
/* MSDN says that the range here is 0x0000 .. 0xff00;
* that may well be a typo, but just chop the low bits
* here. */
vert->Alpha = 0xff00;
vert->Red = color->red_short & 0xff00;
vert->Green = color->green_short & 0xff00;
vert->Blue = color->blue_short & 0xff00;
}
static cairo_int_status_t
_cairo_win32_printing_surface_paint_linear_pattern (cairo_win32_surface_t *surface,
cairo_linear_pattern_t *pattern)
{
TRIVERTEX *vert;
GRADIENT_RECT *rect;
RECT clip;
XFORM xform;
int i, num_stops;
cairo_matrix_t mat, rot;
double p1x, p1y, p2x, p2y, xd, yd, d, sn, cs;
cairo_extend_t extend;
int range_start, range_stop, num_ranges, num_rects, stop;
int total_verts, total_rects;
cairo_status_t status;
extend = cairo_pattern_get_extend (&pattern->base.base);
SaveDC (surface->dc);
mat = pattern->base.base.matrix;
status = cairo_matrix_invert (&mat);
/* _cairo_pattern_set_matrix guarantees invertibility */
assert (status == CAIRO_STATUS_SUCCESS);
cairo_matrix_multiply (&mat, &surface->ctm, &mat);
p1x = _cairo_fixed_to_double (pattern->p1.x);
p1y = _cairo_fixed_to_double (pattern->p1.y);
p2x = _cairo_fixed_to_double (pattern->p2.x);
p2y = _cairo_fixed_to_double (pattern->p2.y);
cairo_matrix_translate (&mat, p1x, p1y);
xd = p2x - p1x;
yd = p2y - p1y;
d = sqrt (xd*xd + yd*yd);
sn = yd/d;
cs = xd/d;
cairo_matrix_init (&rot,
cs, sn,
-sn, cs,
0, 0);
cairo_matrix_multiply (&mat, &rot, &mat);
_cairo_matrix_to_win32_xform (&mat, &xform);
if (!SetWorldTransform (surface->dc, &xform))
return _cairo_win32_print_gdi_error ("_win32_printing_surface_paint_linear_pattern:SetWorldTransform2");
GetClipBox (surface->dc, &clip);
if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) {
range_start = (int) floor(clip.left/d);
range_stop = (int) ceil(clip.right/d);
} else {
range_start = 0;
range_stop = 1;
}
num_ranges = range_stop - range_start;
num_stops = pattern->base.n_stops;
num_rects = num_stops - 1;
/* Add an extra four points and two rectangles for EXTEND_PAD */
vert = malloc (sizeof (TRIVERTEX) * (num_rects*2*num_ranges + 4));
rect = malloc (sizeof (GRADIENT_RECT) * (num_rects*num_ranges + 2));
for (i = 0; i < num_ranges*num_rects; i++) {
vert[i*2].y = (LONG) clip.top;
if (i%num_rects == 0) {
stop = 0;
if (extend == CAIRO_EXTEND_REFLECT && (range_start+(i/num_rects))%2)
stop = num_rects;
vert[i*2].x = (LONG)(d*(range_start + i/num_rects));
vertex_set_color (&vert[i*2], &pattern->base.stops[stop].color);
} else {
vert[i*2].x = vert[i*2-1].x;
vert[i*2].Red = vert[i*2-1].Red;
vert[i*2].Green = vert[i*2-1].Green;
vert[i*2].Blue = vert[i*2-1].Blue;
vert[i*2].Alpha = vert[i*2-1].Alpha;
}
stop = i%num_rects + 1;
vert[i*2+1].x = (LONG)(d*(range_start + i/num_rects + pattern->base.stops[stop].offset));
vert[i*2+1].y = (LONG) clip.bottom;
if (extend == CAIRO_EXTEND_REFLECT && (range_start+(i/num_rects))%2)
stop = num_rects - stop;
vertex_set_color (&vert[i*2+1], &pattern->base.stops[stop].color);
rect[i].UpperLeft = i*2;
rect[i].LowerRight = i*2 + 1;
}
total_verts = 2*num_ranges*num_rects;
total_rects = num_ranges*num_rects;
if (extend == CAIRO_EXTEND_PAD) {
vert[i*2].x = vert[i*2-1].x;
vert[i*2].y = (LONG) clip.top;
vert[i*2].Red = vert[i*2-1].Red;
vert[i*2].Green = vert[i*2-1].Green;
vert[i*2].Blue = vert[i*2-1].Blue;
vert[i*2].Alpha = 0xff00;
vert[i*2+1].x = clip.right;
vert[i*2+1].y = (LONG) clip.bottom;
vert[i*2+1].Red = vert[i*2-1].Red;
vert[i*2+1].Green = vert[i*2-1].Green;
vert[i*2+1].Blue = vert[i*2-1].Blue;
vert[i*2+1].Alpha = 0xff00;
rect[i].UpperLeft = i*2;
rect[i].LowerRight = i*2 + 1;
i++;
vert[i*2].x = clip.left;
vert[i*2].y = (LONG) clip.top;
vert[i*2].Red = vert[0].Red;
vert[i*2].Green = vert[0].Green;
vert[i*2].Blue = vert[0].Blue;
vert[i*2].Alpha = 0xff00;
vert[i*2+1].x = vert[0].x;
vert[i*2+1].y = (LONG) clip.bottom;
vert[i*2+1].Red = vert[0].Red;
vert[i*2+1].Green = vert[0].Green;
vert[i*2+1].Blue = vert[0].Blue;
vert[i*2+1].Alpha = 0xff00;
rect[i].UpperLeft = i*2;
rect[i].LowerRight = i*2 + 1;
total_verts += 4;
total_rects += 2;
}
if (!GradientFill (surface->dc,
vert, total_verts,
rect, total_rects,
GRADIENT_FILL_RECT_H))
return _cairo_win32_print_gdi_error ("_win32_printing_surface_paint_linear_pattern:GradientFill");
free (rect);
free (vert);
RestoreDC (surface->dc, -1);
return 0;
}
static cairo_int_status_t
_cairo_win32_printing_surface_paint_pattern (cairo_win32_surface_t *surface,
cairo_pattern_t *pattern)
{
cairo_status_t status;
switch (pattern->type) {
case CAIRO_PATTERN_TYPE_SOLID:
status = _cairo_win32_printing_surface_paint_solid_pattern (surface, pattern);
if (status)
return status;
break;
case CAIRO_PATTERN_TYPE_SURFACE:
status = _cairo_win32_printing_surface_paint_surface_pattern (surface,
(cairo_surface_pattern_t *) pattern);
if (status)
return status;
break;
case CAIRO_PATTERN_TYPE_LINEAR:
status = _cairo_win32_printing_surface_paint_linear_pattern (surface, (cairo_linear_pattern_t *) pattern);
if (status)
return status;
break;
case CAIRO_PATTERN_TYPE_RADIAL:
return CAIRO_INT_STATUS_UNSUPPORTED;
break;
}
return CAIRO_STATUS_SUCCESS;
}
typedef struct _win32_print_path_info {
cairo_win32_surface_t *surface;
} win32_path_info_t;
static cairo_status_t
_cairo_win32_printing_surface_path_move_to (void *closure, cairo_point_t *point)
{
win32_path_info_t *path_info = closure;
if (path_info->surface->has_ctm) {
double x, y;
x = _cairo_fixed_to_double (point->x);
y = _cairo_fixed_to_double (point->y);
cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y);
MoveToEx (path_info->surface->dc, (int) x, (int) y, NULL);
} else {
MoveToEx (path_info->surface->dc,
_cairo_fixed_integer_part (point->x),
_cairo_fixed_integer_part (point->y),
NULL);
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_win32_printing_surface_path_line_to (void *closure, cairo_point_t *point)
{
win32_path_info_t *path_info = closure;
path_info->surface->path_empty = FALSE;
if (path_info->surface->has_ctm) {
double x, y;
x = _cairo_fixed_to_double (point->x);
y = _cairo_fixed_to_double (point->y);
cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y);
LineTo (path_info->surface->dc, (int) x, (int) y);
} else {
LineTo (path_info->surface->dc,
_cairo_fixed_integer_part (point->x),
_cairo_fixed_integer_part (point->y));
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_win32_printing_surface_path_curve_to (void *closure,
cairo_point_t *b,
cairo_point_t *c,
cairo_point_t *d)
{
win32_path_info_t *path_info = closure;
POINT points[3];
path_info->surface->path_empty = FALSE;
if (path_info->surface->has_ctm) {
double x, y;
x = _cairo_fixed_to_double (b->x);
y = _cairo_fixed_to_double (b->y);
cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y);
points[0].x = (LONG) x;
points[0].y = (LONG) y;
x = _cairo_fixed_to_double (c->x);
y = _cairo_fixed_to_double (c->y);
cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y);
points[1].x = (LONG) x;
points[1].y = (LONG) y;
x = _cairo_fixed_to_double (d->x);
y = _cairo_fixed_to_double (d->y);
cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y);
points[2].x = (LONG) x;
points[2].y = (LONG) y;
} else {
points[0].x = _cairo_fixed_integer_part (b->x);
points[0].y = _cairo_fixed_integer_part (b->y);
points[1].x = _cairo_fixed_integer_part (c->x);
points[1].y = _cairo_fixed_integer_part (c->y);
points[2].x = _cairo_fixed_integer_part (d->x);
points[2].y = _cairo_fixed_integer_part (d->y);
}
PolyBezierTo (path_info->surface->dc, points, 3);
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_win32_printing_surface_path_close_path (void *closure)
{
win32_path_info_t *path_info = closure;
CloseFigure (path_info->surface->dc);
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_win32_printing_surface_emit_path (cairo_win32_surface_t *surface,
cairo_path_fixed_t *path)
{
win32_path_info_t path_info;
cairo_status_t status;
path_info.surface = surface;
status = _cairo_path_fixed_interpret (path,
CAIRO_DIRECTION_FORWARD,
_cairo_win32_printing_surface_path_move_to,
_cairo_win32_printing_surface_path_line_to,
_cairo_win32_printing_surface_path_curve_to,
_cairo_win32_printing_surface_path_close_path,
&path_info);
return status;
}
static cairo_int_status_t
_cairo_win32_printing_surface_show_page (void *abstract_surface)
{
cairo_win32_surface_t *surface = abstract_surface;
/* Undo both SaveDC's that we did in start_page */
RestoreDC (surface->dc, -2);
return CAIRO_STATUS_SUCCESS;
}
static cairo_int_status_t
_cairo_win32_printing_surface_intersect_clip_path (void *abstract_surface,
cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias)
{
cairo_win32_surface_t *surface = abstract_surface;
cairo_status_t status;
if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
return CAIRO_STATUS_SUCCESS;
if (path == NULL) {
RestoreDC (surface->dc, -1);
SaveDC (surface->dc);
return CAIRO_STATUS_SUCCESS;
}
BeginPath (surface->dc);
status = _cairo_win32_printing_surface_emit_path (surface, path);
EndPath (surface->dc);
switch (fill_rule) {
case CAIRO_FILL_RULE_WINDING:
SetPolyFillMode (surface->dc, WINDING);
break;
case CAIRO_FILL_RULE_EVEN_ODD:
SetPolyFillMode (surface->dc, ALTERNATE);
break;
default:
ASSERT_NOT_REACHED;
}
SelectClipPath (surface->dc, RGN_AND);
return status;
}
static void
_cairo_win32_printing_surface_get_font_options (void *abstract_surface,
cairo_font_options_t *options)
{
_cairo_font_options_init_default (options);
cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE);
cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF);
cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_GRAY);
}
static cairo_int_status_t
_cairo_win32_printing_surface_paint (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source)
{
cairo_win32_surface_t *surface = abstract_surface;
cairo_solid_pattern_t clear;
if (op == CAIRO_OPERATOR_CLEAR) {
_cairo_win32_printing_surface_init_clear_color (surface, &clear);
source = (cairo_pattern_t*) &clear;
op = CAIRO_OPERATOR_SOURCE;
}
if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
return _cairo_win32_printing_surface_analyze_operation (surface, op, source);
assert (_cairo_win32_printing_surface_operation_supported (surface, op, source));
return _cairo_win32_printing_surface_paint_pattern (surface, source);
}
static int
_cairo_win32_line_cap (cairo_line_cap_t cap)
{
switch (cap) {
case CAIRO_LINE_CAP_BUTT:
return PS_ENDCAP_FLAT;
case CAIRO_LINE_CAP_ROUND:
return PS_ENDCAP_ROUND;
case CAIRO_LINE_CAP_SQUARE:
return PS_ENDCAP_SQUARE;
default:
ASSERT_NOT_REACHED;
return 0;
}
}
static int
_cairo_win32_line_join (cairo_line_join_t join)
{
switch (join) {
case CAIRO_LINE_JOIN_MITER:
return PS_JOIN_MITER;
case CAIRO_LINE_JOIN_ROUND:
return PS_JOIN_ROUND;
case CAIRO_LINE_JOIN_BEVEL:
return PS_JOIN_BEVEL;
default:
ASSERT_NOT_REACHED;
return 0;
}
}
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);
}
static cairo_int_status_t
_cairo_win32_printing_surface_stroke (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
cairo_path_fixed_t *path,
cairo_stroke_style_t *style,
cairo_matrix_t *stroke_ctm,
cairo_matrix_t *stroke_ctm_inverse,
double tolerance,
cairo_antialias_t antialias)
{
cairo_win32_surface_t *surface = abstract_surface;
cairo_int_status_t status;
HPEN pen;
LOGBRUSH brush;
COLORREF color;
XFORM xform;
DWORD pen_style;
DWORD *dash_array;
HGDIOBJ obj;
unsigned int i;
cairo_solid_pattern_t clear;
cairo_matrix_t mat;
double scale;
if (op == CAIRO_OPERATOR_CLEAR) {
_cairo_win32_printing_surface_init_clear_color (surface, &clear);
source = (cairo_pattern_t*) &clear;
op = CAIRO_OPERATOR_SOURCE;
}
if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) {
/* Win32 does not support a dash offset. */
if (style->num_dashes > 0 && style->dash_offset != 0.0)
return CAIRO_INT_STATUS_UNSUPPORTED;
return _cairo_win32_printing_surface_analyze_operation (surface, op, source);
}
assert (_cairo_win32_printing_surface_operation_supported (surface, op, source));
assert (!(style->num_dashes > 0 && style->dash_offset != 0.0));
cairo_matrix_multiply (&mat, stroke_ctm, &surface->ctm);
_cairo_matrix_factor_out_scale (&mat, &scale);
pen_style = PS_GEOMETRIC;
dash_array = NULL;
if (style->num_dashes) {
pen_style |= PS_USERSTYLE;
dash_array = calloc (sizeof (DWORD), style->num_dashes);
for (i = 0; i < style->num_dashes; i++) {
dash_array[i] = (DWORD) (scale * style->dash[i]);
}
} else {
pen_style |= PS_SOLID;
}
SetMiterLimit (surface->dc, (FLOAT) (style->miter_limit), NULL);
if (source->type == CAIRO_PATTERN_TYPE_SOLID) {
cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) source;
color = _cairo_win32_printing_surface_flatten_transparency (surface,
&solid->color);
} else {
/* Color not used as the pen will only be used by WidenPath() */
color = RGB (0,0,0);
}
brush.lbStyle = BS_SOLID;
brush.lbColor = color;
brush.lbHatch = 0;
pen_style |= _cairo_win32_line_cap (style->line_cap);
pen_style |= _cairo_win32_line_join (style->line_join);
pen = ExtCreatePen(pen_style,
scale * style->line_width,
&brush,
style->num_dashes,
dash_array);
if (pen == NULL)
return _cairo_win32_print_gdi_error ("_win32_surface_stroke:ExtCreatePen");
obj = SelectObject (surface->dc, pen);
if (obj == NULL)
return _cairo_win32_print_gdi_error ("_win32_surface_stroke:SelectObject");
BeginPath (surface->dc);
status = _cairo_win32_printing_surface_emit_path (surface, path);
EndPath (surface->dc);
if (status)
return status;
/*
* Switch to user space to set line parameters
*/
SaveDC (surface->dc);
_cairo_matrix_to_win32_xform (&mat, &xform);
xform.eDx = 0.0f;
xform.eDy = 0.0f;
if (!SetWorldTransform (surface->dc, &xform))
return _cairo_win32_print_gdi_error ("_win32_surface_stroke:SetWorldTransform");
if (source->type == CAIRO_PATTERN_TYPE_SOLID) {
StrokePath (surface->dc);
} else {
if (!WidenPath (surface->dc))
return _cairo_win32_print_gdi_error ("_win32_surface_stroke:WidenPath");
if (!SelectClipPath (surface->dc, RGN_AND))
return _cairo_win32_print_gdi_error ("_win32_surface_stroke:SelectClipPath");
/* Return to device space to paint the pattern */
if (!ModifyWorldTransform (surface->dc, &xform, MWT_IDENTITY))
return _cairo_win32_print_gdi_error ("_win32_surface_stroke:ModifyWorldTransform");
status = _cairo_win32_printing_surface_paint_pattern (surface, source);
}
RestoreDC (surface->dc, -1);
DeleteObject (pen);
if (dash_array)
free (dash_array);
return status;
}
static cairo_int_status_t
_cairo_win32_printing_surface_fill (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias)
{
cairo_win32_surface_t *surface = abstract_surface;
cairo_int_status_t status;
cairo_solid_pattern_t clear;
if (op == CAIRO_OPERATOR_CLEAR) {
_cairo_win32_printing_surface_init_clear_color (surface, &clear);
source = (cairo_pattern_t*) &clear;
op = CAIRO_OPERATOR_SOURCE;
}
if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE)
return _cairo_win32_printing_surface_analyze_operation (surface, op, source);
assert (_cairo_win32_printing_surface_operation_supported (surface, op, source));
surface->path_empty = TRUE;
BeginPath (surface->dc);
status = _cairo_win32_printing_surface_emit_path (surface, path);
EndPath (surface->dc);
switch (fill_rule) {
case CAIRO_FILL_RULE_WINDING:
SetPolyFillMode (surface->dc, WINDING);
break;
case CAIRO_FILL_RULE_EVEN_ODD:
SetPolyFillMode (surface->dc, ALTERNATE);
break;
default:
ASSERT_NOT_REACHED;
}
if (source->type == CAIRO_PATTERN_TYPE_SOLID) {
status = _cairo_win32_printing_surface_select_solid_brush (surface, source);
if (status)
return status;
FillPath (surface->dc);
_cairo_win32_printing_surface_done_solid_brush (surface);
} else if (surface->path_empty == FALSE) {
SaveDC (surface->dc);
SelectClipPath (surface->dc, RGN_AND);
status = _cairo_win32_printing_surface_paint_pattern (surface, source);
RestoreDC (surface->dc, -1);
}
fflush(stderr);
return status;
}
static cairo_int_status_t
_cairo_win32_printing_surface_show_glyphs (void *abstract_surface,
cairo_operator_t op,
cairo_pattern_t *source,
cairo_glyph_t *glyphs,
int num_glyphs,
cairo_scaled_font_t *scaled_font,
int *remaining_glyphs)
{
cairo_win32_surface_t *surface = abstract_surface;
cairo_status_t status = CAIRO_STATUS_SUCCESS;
cairo_scaled_glyph_t *scaled_glyph;
cairo_pattern_t *opaque = NULL;
int i;
cairo_matrix_t old_ctm;
cairo_bool_t old_has_ctm;
cairo_solid_pattern_t clear;
if (op == CAIRO_OPERATOR_CLEAR) {
_cairo_win32_printing_surface_init_clear_color (surface, &clear);
source = (cairo_pattern_t*) &clear;
op = CAIRO_OPERATOR_SOURCE;
}
if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) {
/* When printing bitmap fonts to a printer DC, Windows may
* substitute an outline font for bitmap font. As the win32
* font backend always uses a screen DC when obtaining the
* font metrics the metrics of the substituted font will not
* match the metrics that the win32 font backend returns.
*
* If we are printing a bitmap font, use fallback images to
* ensure the font is not substituted.
*/
if (cairo_scaled_font_get_type (scaled_font) == CAIRO_FONT_TYPE_WIN32) {
if (_cairo_win32_scaled_font_is_bitmap (scaled_font))
return CAIRO_INT_STATUS_UNSUPPORTED;
else
return _cairo_win32_printing_surface_analyze_operation (surface, op, source);
}
/* For non win32 fonts we need to check that each glyph has a
* path available. If a path is not available,
* _cairo_scaled_glyph_lookup() will return
* CAIRO_INT_STATUS_UNSUPPORTED and a fallback image will be
* used.
*/
for (i = 0; i < num_glyphs; i++) {
status = _cairo_scaled_glyph_lookup (scaled_font,
glyphs[i].index,
CAIRO_SCALED_GLYPH_INFO_PATH,
&scaled_glyph);
if (status)
return status;
}
return _cairo_win32_printing_surface_analyze_operation (surface, op, source);
}
if (source->type == CAIRO_PATTERN_TYPE_SOLID) {
cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) source;
COLORREF color;
color = _cairo_win32_printing_surface_flatten_transparency (surface,
&solid->color);
opaque = cairo_pattern_create_rgb (GetRValue (color) / 255.0,
GetGValue (color) / 255.0,
GetBValue (color) / 255.0);
if (opaque->status)
return opaque->status;
source = opaque;
}
if (cairo_scaled_font_get_type (scaled_font) == CAIRO_FONT_TYPE_WIN32 &&
source->type == CAIRO_PATTERN_TYPE_SOLID)
{
cairo_matrix_t ctm;
cairo_glyph_t *type1_glyphs = NULL;
cairo_scaled_font_subsets_glyph_t subset_glyph;
/* Calling ExtTextOutW() with ETO_GLYPH_INDEX and a Type 1
* font on a printer DC prints garbled text. The text displays
* correctly on a display DC. When using a printer
* DC, ExtTextOutW() only works with characters and not glyph
* indices.
*
* For Type 1 fonts the glyph indices are converted back to
* unicode characters before calling _cairo_win32_surface_show_glyphs().
*
* As _cairo_win32_scaled_font_index_to_ucs4() is a slow
* operation, the font subsetting function
* _cairo_scaled_font_subsets_map_glyph() is used to obtain
* the unicode value because it caches the reverse mapping in
* the subsets.
*/
if (_cairo_win32_scaled_font_is_type1 (scaled_font)) {
type1_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t));
if (type1_glyphs == NULL)
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
memcpy (type1_glyphs, glyphs, num_glyphs * sizeof (cairo_glyph_t));
for (i = 0; i < num_glyphs; i++) {
status = _cairo_scaled_font_subsets_map_glyph (surface->font_subsets,
scaled_font,
type1_glyphs[i].index,
NULL, 0,
&subset_glyph);
if (status)
return status;
type1_glyphs[i].index = subset_glyph.unicode;
}
glyphs = type1_glyphs;
}
if (surface->has_ctm) {
for (i = 0; i < num_glyphs; i++)
cairo_matrix_transform_point (&surface->ctm, &glyphs[i].x, &glyphs[i].y);
cairo_matrix_multiply (&ctm, &scaled_font->ctm, &surface->ctm);
scaled_font = cairo_scaled_font_create (scaled_font->font_face,
&scaled_font->font_matrix,
&ctm,
&scaled_font->options);
}
status = _cairo_win32_surface_show_glyphs (surface, op,
source, glyphs,
num_glyphs, scaled_font,
remaining_glyphs);
if (surface->has_ctm)
cairo_scaled_font_destroy (scaled_font);
if (type1_glyphs != NULL)
free (type1_glyphs);
return status;
}
SaveDC (surface->dc);
old_ctm = surface->ctm;
old_has_ctm = surface->has_ctm;
surface->has_ctm = TRUE;
surface->path_empty = TRUE;
BeginPath (surface->dc);
for (i = 0; i < num_glyphs; i++) {
status = _cairo_scaled_glyph_lookup (scaled_font,
glyphs[i].index,
CAIRO_SCALED_GLYPH_INFO_PATH,
&scaled_glyph);
if (status)
break;
surface->ctm = old_ctm;
cairo_matrix_translate (&surface->ctm, glyphs[i].x, glyphs[i].y);
status = _cairo_win32_printing_surface_emit_path (surface, scaled_glyph->path);
}
EndPath (surface->dc);
surface->ctm = old_ctm;
surface->has_ctm = old_has_ctm;
if (status == CAIRO_STATUS_SUCCESS && surface->path_empty == FALSE) {
if (source->type == CAIRO_PATTERN_TYPE_SOLID) {
status = _cairo_win32_printing_surface_select_solid_brush (surface, source);
if (status)
return status;
SetPolyFillMode (surface->dc, WINDING);
FillPath (surface->dc);
_cairo_win32_printing_surface_done_solid_brush (surface);
} else {
SelectClipPath (surface->dc, RGN_AND);
status = _cairo_win32_printing_surface_paint_pattern (surface, source);
}
}
RestoreDC (surface->dc, -1);
if (opaque)
cairo_pattern_destroy (opaque);
return status;
}
static cairo_surface_t *
_cairo_win32_printing_surface_create_similar (void *abstract_surface,
cairo_content_t content,
int width,
int height)
{
return _cairo_meta_surface_create (content, width, height);
}
static cairo_int_status_t
_cairo_win32_printing_surface_start_page (void *abstract_surface)
{
cairo_win32_surface_t *surface = abstract_surface;
XFORM xform;
double x_res, y_res;
cairo_matrix_t inverse_ctm;
cairo_status_t status;
SaveDC (surface->dc); /* Save application context first, before doing MWT */
SetGraphicsMode (surface->dc, GM_ADVANCED);
GetWorldTransform(surface->dc, &xform);
surface->ctm.xx = xform.eM11;
surface->ctm.xy = xform.eM21;
surface->ctm.yx = xform.eM12;
surface->ctm.yy = xform.eM22;
surface->ctm.x0 = xform.eDx;
surface->ctm.y0 = xform.eDy;
surface->has_ctm = !_cairo_matrix_is_identity (&surface->ctm);
inverse_ctm = surface->ctm;
status = cairo_matrix_invert (&inverse_ctm);
if (status)
return status;
x_res = (double) GetDeviceCaps(surface->dc, LOGPIXELSX);
y_res = (double) GetDeviceCaps(surface->dc, LOGPIXELSY);
cairo_matrix_transform_distance (&inverse_ctm, &x_res, &y_res);
_cairo_surface_set_resolution (&surface->base, x_res, y_res);
if (!ModifyWorldTransform (surface->dc, NULL, MWT_IDENTITY))
return _cairo_win32_print_gdi_error ("_cairo_win32_printing_surface_start_page:ModifyWorldTransform");
SaveDC (surface->dc); /* Then save Cairo's known-good clip state, so the clip path can be reset */
return CAIRO_STATUS_SUCCESS;
}
static void
_cairo_win32_printing_surface_set_paginated_mode (void *abstract_surface,
cairo_paginated_mode_t paginated_mode)
{
cairo_win32_surface_t *surface = abstract_surface;
surface->paginated_mode = paginated_mode;
}
static cairo_bool_t
_cairo_win32_printing_surface_supports_fine_grained_fallbacks (void *abstract_surface)
{
return TRUE;
}
/**
* cairo_win32_printing_surface_create:
* @hdc: the DC to create a surface for
*
* Creates a cairo surface that targets the given DC. The DC will be
* queried for its initial clip extents, and this will be used as the
* size of the cairo surface. The DC should be a printing DC;
* antialiasing will be ignored, and GDI will be used as much as
* possible to draw to the surface.
*
* The returned surface will be wrapped using the paginated surface to
* provide correct complex rendering behaviour; show_page() and
* associated methods must be used for correct output.
*
* Return value: the newly created surface
*
* Since: 1.6
**/
cairo_surface_t *
cairo_win32_printing_surface_create (HDC hdc)
{
cairo_win32_surface_t *surface;
cairo_surface_t *paginated;
RECT rect;
surface = malloc (sizeof (cairo_win32_surface_t));
if (surface == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
if (_cairo_win32_save_initial_clip (hdc, surface) != CAIRO_STATUS_SUCCESS) {
free (surface);
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
surface->image = NULL;
surface->format = CAIRO_FORMAT_RGB24;
surface->content = CAIRO_CONTENT_COLOR_ALPHA;
surface->dc = hdc;
surface->bitmap = NULL;
surface->is_dib = FALSE;
surface->saved_dc_bitmap = NULL;
surface->brush = NULL;
surface->old_brush = NULL;
surface->font_subsets = _cairo_scaled_font_subsets_create_scaled ();
if (surface->font_subsets == NULL) {
free (surface);
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
GetClipBox(hdc, &rect);
surface->extents.x = rect.left;
surface->extents.y = rect.top;
surface->extents.width = rect.right - rect.left;
surface->extents.height = rect.bottom - rect.top;
surface->flags = _cairo_win32_flags_for_dc (surface->dc);
surface->flags |= CAIRO_WIN32_SURFACE_FOR_PRINTING;
_cairo_win32_printing_surface_init_ps_mode (surface);
_cairo_surface_init (&surface->base, &cairo_win32_printing_surface_backend,
CAIRO_CONTENT_COLOR_ALPHA);
paginated = _cairo_paginated_surface_create (&surface->base,
CAIRO_CONTENT_COLOR_ALPHA,
surface->extents.width,
surface->extents.height,
&cairo_win32_surface_paginated_backend);
/* paginated keeps the only reference to surface now, drop ours */
cairo_surface_destroy (&surface->base);
return paginated;
}
cairo_bool_t
_cairo_surface_is_win32_printing (cairo_surface_t *surface)
{
return surface->backend == &cairo_win32_printing_surface_backend;
}
static const cairo_surface_backend_t cairo_win32_printing_surface_backend = {
CAIRO_SURFACE_TYPE_WIN32_PRINTING,
_cairo_win32_printing_surface_create_similar,
_cairo_win32_surface_finish,
NULL, /* acquire_source_image */
NULL, /* release_source_image */
NULL, /* acquire_dest_image */
NULL, /* release_dest_image */
_cairo_win32_surface_clone_similar,
NULL, /* composite */
NULL, /* fill_rectangles */
NULL, /* composite_trapezoids */
NULL, /* copy_page */
_cairo_win32_printing_surface_show_page,
NULL, /* set_clip_region */
_cairo_win32_printing_surface_intersect_clip_path,
_cairo_win32_surface_get_extents,
NULL, /* old_show_glyphs */
_cairo_win32_printing_surface_get_font_options,
NULL, /* flush */
NULL, /* mark_dirty_rectangle */
NULL, /* scaled_font_fini */
NULL, /* scaled_glyph_fini */
_cairo_win32_printing_surface_paint,
NULL, /* mask */
_cairo_win32_printing_surface_stroke,
_cairo_win32_printing_surface_fill,
_cairo_win32_printing_surface_show_glyphs,
NULL, /* snapshot */
NULL, /* is_similar */
NULL, /* reset */
NULL, /* fill_stroke */
};
static const cairo_paginated_surface_backend_t cairo_win32_surface_paginated_backend = {
_cairo_win32_printing_surface_start_page,
_cairo_win32_printing_surface_set_paginated_mode,
NULL, /* set_bounding_box */
NULL, /* _cairo_win32_printing_surface_has_fallback_images, */
_cairo_win32_printing_surface_supports_fine_grained_fallbacks,
};
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