--- /dev/null
+/*
+ * cssmetric.h
+ *
+ * Copyright (c) 2013 project bchan
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+ *
+ */
+
+#include <basic.h>
+
+/* Vendor name: */
+/* Functionality name: cssmetric */
+/* Detail name: */
+
+#ifndef __CSSMETRIC_H__
+#define __CSSMETRIC_H__
+
+struct cssmetric_point_t_ {
+ W x;
+ W y;
+};
+typedef struct cssmetric_point_t_ cssmetric_point_t;
+
+union cssmetric_rectangle_t_ {
+ struct {
+ W left;
+ W top;
+ W right;
+ W bottom;
+ } c;
+ struct {
+ cssmetric_point_t lefttop;
+ cssmetric_point_t rightbot;
+ } p;
+};
+typedef union cssmetric_rectangle_t_ cssmetric_rectangle_t;
+
+#endif
--- /dev/null
+/*
+ * cssrendering_box.c
+ *
+ * Copyright (c) 2013 project bchan
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+ *
+ */
+
+#include "cssrendering_box.h"
+
+#include <bstdio.h>
+#include <bsys/queue.h>
+
+#include "cssmetric.h"
+#include "treebase.h"
+
+#ifdef BCHAN_CONFIG_DEBUG
+# define DP(arg) printf arg
+# define DP_ER(msg, err) printf("%s (%d/%x)\n", msg, err>>16, err)
+#else
+# define DP(arg) /**/
+# define DP_ER(msg, err) /**/
+#endif
+
+LOCAL VOID cssrendering_basebox_appendchild(cssrendering_basebox_t *box, cssrendering_basebox_t *child)
+{
+ treebase_node_appendchild(&box->base, &child->base);
+ box->content_edge.c.left = 0;
+ box->content_edge.c.top = 0;
+ box->content_edge.c.right = 0;
+ box->content_edge.c.bottom = 0;
+}
+
+LOCAL VOID cssrendering_basebox_initialize(cssrendering_basebox_t *box, CSSRENDERING_BOX_TYPE type)
+{
+ treebase_node_initialize(&box->base);
+ box->type = type;
+}
+
+LOCAL VOID cssrendering_basebox_finalize(cssrendering_basebox_t *box)
+{
+ treebase_node_finalize(&box->base);
+}
+
+EXPORT VOID cssrendering_linebox_initialize(cssrendering_linebox_t *box)
+{
+ cssrendering_basebox_initialize(&box->base, CSSRENDEREING_BOX_TYPE_LINE);
+}
+
+EXPORT VOID cssrendering_linebox_finalize(cssrendering_linebox_t *box)
+{
+ cssrendering_basebox_finalize(&box->base);
+}
+
+/* cssrendering_anonymousbox */
+
+EXPORT VOID cssrendering_anonymousbox_appendchild(cssrendering_anonymousbox_t *box, cssrendering_linebox_t *child)
+{
+ cssrendering_basebox_appendchild(&box->base, &child->base);
+}
+
+EXPORT VOID cssrendering_anonymousbox_initialize(cssrendering_anonymousbox_t *box)
+{
+ cssrendering_basebox_initialize(&box->base, CSSRENDEREING_BOX_TYPE_ANONYMOUS);
+}
+
+EXPORT VOID cssrendering_anonymousbox_finalize(cssrendering_anonymousbox_t *box)
+{
+ cssrendering_basebox_finalize(&box->base);
+}
+
+/* cssrendering_blockbox */
+
+EXPORT VOID cssrendering_blockbox_appendanonymouschild(cssrendering_blockbox_t *box, cssrendering_anonymousbox_t *child)
+{
+ cssrendering_basebox_appendchild(&box->base, &child->base);
+}
+
+EXPORT VOID cssrendering_blockbox_appendblockchild(cssrendering_blockbox_t *box, cssrendering_blockbox_t *child)
+{
+ cssrendering_basebox_appendchild(&box->base, &child->base);
+}
+
+EXPORT VOID cssrendering_blockbox_initialize(cssrendering_blockbox_t *box)
+{
+ cssrendering_basebox_initialize(&box->base, CSSRENDEREING_BOX_TYPE_BLOCK);
+}
+
+EXPORT VOID cssrendering_blockbox_finalize(cssrendering_blockbox_t *box)
+{
+ cssrendering_basebox_finalize(&box->base);
+}
+
+/* cssrendering_drawtraversal */
+
+EXPORT Bool cssrendering_drawtraversal_next(cssrendering_drawtraversal_t *traversal, cssrendering_drawtraversal_result *result)
+{
+ Bool cont;
+ TREEBASE_TRAVERSAL_DIRECTION dir;
+ union {
+ cssrendering_basebox_t base;
+ cssrendering_linebox_t l;
+ cssrendering_anonymousbox_t a;
+ cssrendering_blockbox_t b;
+ } *box;
+
+ for (;;) {
+ cont = treebase_preordertraversal_next(&traversal->base, (treebase_node_t**)&box, &dir);
+ if (cont != False) {
+ if (dir == TREEBASE_TRAVERSAL_DIRECTION_DOWN) {
+ if ((box->base.type == CSSRENDEREING_BOX_TYPE_BLOCK)||(box->base.type == CSSRENDEREING_BOX_TYPE_ANONYMOUS)) {
+ traversal->origin.x += box->base.content_edge.c.left;
+ traversal->origin.y += box->base.content_edge.c.top;
+ } else if (box->base.type == CSSRENDEREING_BOX_TYPE_LINE) {
+ result->type = CSSRENDERING_DRAWTRAVERSAL_RESULTTYPE_TEXT;
+ result->data.text.fragment = &(box->l.text);
+ result->data.text.blstart.x = traversal->origin.x + box->base.content_edge.c.left;
+ result->data.text.blstart.y = traversal->origin.y + box->base.content_edge.c.top + box->l.baseline;
+ break;
+ }
+ } else {
+ if ((box->base.type == CSSRENDEREING_BOX_TYPE_BLOCK)||(box->base.type == CSSRENDEREING_BOX_TYPE_ANONYMOUS)) {
+ traversal->origin.x -= box->base.content_edge.c.left;
+ traversal->origin.y -= box->base.content_edge.c.top;
+ } else {
+ }
+ }
+ } else {
+ break;
+ }
+ }
+
+ return cont;
+}
+
+EXPORT VOID cssrendering_drawtraversal_initialize(cssrendering_drawtraversal_t *traversal, cssrendering_blockbox_t *root)
+{
+ treebase_preordertraversal_initialize(&traversal->base, &root->base.base);
+ traversal->origin.x = 0;
+ traversal->origin.y = 0;
+}
+
+EXPORT VOID cssrendering_drawtraversal_finalize(cssrendering_drawtraversal_t *traversal)
+{
+ treebase_preordertraversal_finalize(&traversal->base);
+}
--- /dev/null
+/*
+ * cssrendering_box.h
+ *
+ * Copyright (c) 2013 project bchan
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+ *
+ */
+
+#include <basic.h>
+
+#include "cssmetric.h"
+#include <coll/treebase.h>
+
+#ifndef __CSSRENDERING_BOX_H__
+#define __CSSRENDERING_BOX_H__
+
+/* Functionality name: cssrendering */
+/* Detail name: textfragment */
+struct cssrendering_textfragment_t_ {
+ TC *str;
+ W len;
+};
+typedef struct cssrendering_textfragment_t_ cssrendering_textfragment_t;
+
+/* Functionality name: cssrendering */
+/* Detail name: box */
+/* Data structure identifier: type */
+enum CSSRENDERING_BOX_TYPE_ {
+ CSSRENDEREING_BOX_TYPE_BLOCK,
+ CSSRENDEREING_BOX_TYPE_LINE,
+ CSSRENDEREING_BOX_TYPE_ANONYMOUS,
+};
+typedef enum CSSRENDERING_BOX_TYPE_ CSSRENDERING_BOX_TYPE;
+
+/* Functionality name: cssrendering */
+/* Detail name: basebox */
+struct cssrendering_basebox_t_ {
+ treebase_node_t base;
+ CSSRENDERING_BOX_TYPE type;
+ cssmetric_rectangle_t content_edge;
+};
+typedef struct cssrendering_basebox_t_ cssrendering_basebox_t;
+
+/* Functionality name: cssrendering */
+/* Detail name: linebox */
+struct cssrendering_linebox_t_ {
+ cssrendering_basebox_t base;
+ cssrendering_textfragment_t text;
+ W baseline;
+};
+typedef struct cssrendering_linebox_t_ cssrendering_linebox_t;
+
+/* Functionality name: cssrendering */
+/* Detail name: anonymousbox */
+struct cssrendering_anonymousbox_t_ {
+ cssrendering_basebox_t base;
+ cssmetric_rectangle_t view;
+};
+typedef struct cssrendering_anonymousbox_t_ cssrendering_anonymousbox_t;
+
+/* Functionality name: cssrendering */
+/* Detail name: blockbox */
+struct cssrendering_blockbox_t_ {
+ cssrendering_basebox_t base;
+ cssmetric_rectangle_t view;
+};
+typedef struct cssrendering_blockbox_t_ cssrendering_blockbox_t;
+
+/* Functionality name: cssrendering */
+/* Detail name: drawtraversal */
+struct cssrendering_drawtraversal_t_ {
+ treebase_preordertraversal_t base;
+ cssmetric_point_t origin;
+};
+typedef struct cssrendering_drawtraversal_t_ cssrendering_drawtraversal_t;
+
+/* Functionality name: cssrendering */
+/* Detail name: drawtraversal */
+/* Data structure identifier: result */
+struct cssrendering_drawtraversal_result_ {
+ enum {
+ CSSRENDERING_DRAWTRAVERSAL_RESULTTYPE_TEXT,
+ } type;
+ union {
+ struct {
+ cssrendering_textfragment_t *fragment;
+ cssmetric_point_t blstart; /* baseline start */
+ } text;
+ } data;
+};
+typedef struct cssrendering_drawtraversal_result_ cssrendering_drawtraversal_result;
+
+IMPORT VOID cssrendering_linebox_initialize(cssrendering_linebox_t *box);
+IMPORT VOID cssrendering_linebox_finalize(cssrendering_linebox_t *box);
+
+IMPORT VOID cssrendering_anonymousbox_initialize(cssrendering_anonymousbox_t *box);
+IMPORT VOID cssrendering_anonymousbox_finalize(cssrendering_anonymousbox_t *box);
+IMPORT VOID cssrendering_anonymousbox_appendchild(cssrendering_anonymousbox_t *box, cssrendering_linebox_t *child);
+
+IMPORT VOID cssrendering_blockbox_initialize(cssrendering_blockbox_t *box);
+IMPORT VOID cssrendering_blockbox_finalize(cssrendering_blockbox_t *box);
+IMPORT VOID cssrendering_blockbox_appendanonymouschild(cssrendering_blockbox_t *box, cssrendering_anonymousbox_t *child);
+
+IMPORT VOID cssrendering_drawtraversal_initialize(cssrendering_drawtraversal_t *traversal, cssrendering_blockbox_t *root);
+IMPORT VOID cssrendering_drawtraversal_finalize(cssrendering_drawtraversal_t *traversal);
+IMPORT Bool cssrendering_drawtraversal_next(cssrendering_drawtraversal_t *traversal, cssrendering_drawtraversal_result *result);
+
+#endif
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