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138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
/* -*-C-*-
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********************************************************************************
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*
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* File: render.cpp (Formerly render.c)
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* Description: Convert the various data type into line lists
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* Author: Mark Seaman, OCR Technology
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* Created: Fri Jul 28 13:14:48 1989
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* Modified: Mon Jul 15 10:23:37 1991 (Mark Seaman) marks@hpgrlt
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* Language: C
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* Package: N/A
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* Status: Experimental (Do Not Distribute)
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*
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* (c) Copyright 1989, Hewlett-Packard Company.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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*********************************************************************************/
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#include "render.h"
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#include "blobs.h"
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#ifdef __UNIX__
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#include <assert.h>
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#endif
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#include <math.h>
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#include "vecfuncs.h"
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// Include automatically generated configuration file if running autoconf.
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#ifdef HAVE_CONFIG_H
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#include "config_auto.h"
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#endif
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/*----------------------------------------------------------------------
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V a r i a b l e s
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----------------------------------------------------------------------*/
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ScrollView *blob_window = nullptr;
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C_COL color_list[] = {
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Red, Cyan, Yellow, Blue, Green, White
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};
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BOOL_VAR(wordrec_display_all_blobs, 0, "Display Blobs");
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BOOL_VAR(wordrec_display_all_words, 0, "Display Words");
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BOOL_VAR(wordrec_blob_pause, 0, "Blob pause");
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/*----------------------------------------------------------------------
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F u n c t i o n s
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----------------------------------------------------------------------*/
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#ifndef GRAPHICS_DISABLED
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/**********************************************************************
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* display_blob
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*
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* Macro to display blob in a window.
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**********************************************************************/
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void display_blob(TBLOB *blob, C_COL color) {
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/* Size of drawable */
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if (blob_window == nullptr) {
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blob_window = c_create_window ("Blobs", 520, 10,
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500, 256, -1000.0, 1000.0, 0.0, 256.0);
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}
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else {
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c_clear_window(blob_window);
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}
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render_blob(blob_window, blob, color);
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}
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/**********************************************************************
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* render_blob
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*
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* Create a list of line segments that represent the expanded outline
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* that was supplied as input.
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**********************************************************************/
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void render_blob(void *window, TBLOB *blob, C_COL color) {
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/* No outline */
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if (!blob)
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return;
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render_outline (window, blob->outlines, color);
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}
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/**********************************************************************
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* render_edgepts
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*
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* Create a list of line segments that represent the expanded outline
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* that was supplied as input.
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**********************************************************************/
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void render_edgepts(void *window, EDGEPT *edgept, C_COL color) {
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if (!edgept)
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return;
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float x = edgept->pos.x;
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float y = edgept->pos.y;
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EDGEPT *this_edge = edgept;
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c_line_color_index(window, color);
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c_move(window, x, y);
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do {
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this_edge = this_edge->next;
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x = this_edge->pos.x;
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y = this_edge->pos.y;
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c_draw(window, x, y);
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}
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while (edgept != this_edge);
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}
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/**********************************************************************
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* render_outline
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*
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* Create a list of line segments that represent the expanded outline
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* that was supplied as input.
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**********************************************************************/
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void render_outline(void *window,
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TESSLINE *outline,
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C_COL color) {
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/* No outline */
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if (!outline)
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return;
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/* Draw Compact outline */
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if (outline->loop)
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render_edgepts (window, outline->loop, color);
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/* Add on next outlines */
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render_outline (window, outline->next, color);
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}
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#endif // GRAPHICS_DISABLED
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