| /* -*-C-*- |
| ******************************************************************************** |
| * |
| * File: render.c (Formerly render.c) |
| * Description: Convert the various data type into line lists |
| * Author: Mark Seaman, OCR Technology |
| * Created: Fri Jul 28 13:14:48 1989 |
| * Modified: Mon Jul 15 10:23:37 1991 (Mark Seaman) marks@hpgrlt |
| * Language: C |
| * Package: N/A |
| * Status: Experimental (Do Not Distribute) |
| * |
| * (c) Copyright 1989, Hewlett-Packard Company. |
| ** Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| * |
| *********************************************************************************/ |
| #include "render.h" |
| #include "blobs.h" |
| |
| #ifdef __UNIX__ |
| #include <assert.h> |
| #endif |
| #include <math.h> |
| |
| #include "vecfuncs.h" |
| #include "debug.h" |
| |
| /*---------------------------------------------------------------------- |
| V a r i a b l e s |
| ----------------------------------------------------------------------*/ |
| ScrollView *blob_window = NULL; |
| |
| C_COL color_list[] = { |
| Red, Cyan, Yellow, Blue, Green, White |
| }; |
| |
| make_toggle_var (display_all_blobs, 0, make_disp_all_blobs, |
| 5, 1, toggle_blobs, "Display Blobs"); |
| |
| make_toggle_var (display_all_words, 0, make_disp_all_words, |
| 5, 2, toggle_wdisp, "Display Words"); |
| |
| make_toggle_var (blob_pause, 0, make_blob_pause, |
| 5, 6, toggle_pause, "Blob pause"); |
| |
| /*---------------------------------------------------------------------- |
| F u n c t i o n s |
| ----------------------------------------------------------------------*/ |
| /********************************************************************** |
| * display_blob |
| * |
| * Macro to display blob in a window. |
| **********************************************************************/ |
| void display_blob(TBLOB *blob, C_COL color) { |
| #ifndef GRAPHICS_DISABLED |
| /* Size of drawable */ |
| if (blob_window == NULL) { |
| blob_window = c_create_window ("Blobs", 520, 10, |
| 500, 256, -1000.0, 1000.0, 0.0, 256.0); |
| } |
| else { |
| c_clear_window(blob_window); |
| } |
| |
| render_blob(blob_window, blob, color); |
| #endif |
| } |
| |
| |
| /********************************************************************** |
| * init_render_vars |
| * |
| * Initialize the render graphics menu items. |
| **********************************************************************/ |
| void init_render_vars() { |
| make_disp_all_blobs(); |
| make_disp_all_words(); |
| make_blob_pause(); |
| } |
| |
| |
| /********************************************************************** |
| * render_blob |
| * |
| * Create a list of line segments that represent the expanded outline |
| * that was supplied as input. |
| **********************************************************************/ |
| void render_blob(void *window, TBLOB *blob, C_COL color) { |
| /* No outline */ |
| if (!blob) |
| return; |
| |
| render_outline (window, blob->outlines, color); |
| } |
| |
| |
| /********************************************************************** |
| * render_edgepts |
| * |
| * Create a list of line segments that represent the expanded outline |
| * that was supplied as input. |
| **********************************************************************/ |
| void render_edgepts(void *window, EDGEPT *edgept, C_COL color) { |
| float x = edgept->pos.x; |
| float y = edgept->pos.y; |
| EDGEPT *this_edge = edgept; |
| |
| if (!edgept) |
| return; |
| |
| #ifndef GRAPHICS_DISABLED |
| c_line_color_index(window, color); |
| c_move(window, x, y); |
| #endif |
| do { |
| this_edge = this_edge->next; |
| x = this_edge->pos.x; |
| y = this_edge->pos.y; |
| #ifndef GRAPHICS_DISABLED |
| c_draw(window, x, y); |
| #endif |
| } |
| while (edgept != this_edge); |
| } |
| |
| |
| /********************************************************************** |
| * render_outline |
| * |
| * Create a list of line segments that represent the expanded outline |
| * that was supplied as input. |
| **********************************************************************/ |
| void render_outline(void *window, |
| TESSLINE *outline, |
| C_COL color) { |
| /* No outline */ |
| if (!outline) |
| return; |
| /* Draw Compact outline */ |
| if (outline->loop) |
| render_edgepts (window, outline->loop, color); |
| /* Add on next outlines */ |
| render_outline (window, outline->next, color); |
| |
| /* Add on child outlines */ |
| render_outline(window, outline->child, Grey); |
| } |