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b311480e | 1 | // Created on: 2011-07-13 |
2 | // Created by: Sergey ZERCHANINOV | |
3 | // Copyright (c) 2011-2012 OPEN CASCADE SAS | |
4 | // | |
5 | // The content of this file is subject to the Open CASCADE Technology Public | |
6 | // License Version 6.5 (the "License"). You may not use the content of this file | |
7 | // except in compliance with the License. Please obtain a copy of the License | |
8 | // at http://www.opencascade.org and read it completely before using this file. | |
9 | // | |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
12 | // | |
13 | // The Original Code and all software distributed under the License is | |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
15 | // Initial Developer hereby disclaims all such warranties, including without | |
16 | // limitation, any warranties of merchantability, fitness for a particular | |
17 | // purpose or non-infringement. Please see the License for the specific terms | |
18 | // and conditions governing the rights and limitations under the License. | |
19 | ||
2166f0fa | 20 | |
5f8b738e | 21 | #include <OpenGl_GlCore11.hxx> |
2166f0fa | 22 | #include <OpenGl_Text.hxx> |
2166f0fa SK |
23 | #include <OpenGl_AspectText.hxx> |
24 | #include <OpenGl_Structure.hxx> | |
25 | ||
5f8b738e | 26 | #include <GL/glu.h> // gluUnProject() |
27 | ||
2166f0fa SK |
28 | /*----------------------------------------------------------------------*/ |
29 | ||
30 | OpenGl_Text::OpenGl_Text (const TCollection_ExtendedString& AText, | |
31 | const Graphic3d_Vertex& APoint, | |
32 | const Standard_Real AHeight, | |
33 | const Graphic3d_HorizontalTextAlignment AHta, | |
34 | const Graphic3d_VerticalTextAlignment AVta) | |
35 | : myString(NULL) | |
36 | { | |
37 | const Techar *str = (const Techar *) AText.ToExtString(); | |
38 | ||
39 | //szv: instead of strlen + 1 | |
40 | int i = 0; while (str[i++]); | |
41 | ||
42 | wchar_t *wstr = new wchar_t[i]; | |
43 | ||
44 | //szv: instead of memcpy | |
45 | i = 0; while (wstr[i++] = (wchar_t)(*str++)); | |
46 | if (myString) delete[] myString; | |
47 | myString = wstr; | |
48 | ||
49 | Standard_Real X, Y, Z; | |
50 | APoint.Coord(X, Y, Z); | |
51 | myAttachPnt.xyz[0] = float (X); | |
52 | myAttachPnt.xyz[1] = float (Y); | |
53 | myAttachPnt.xyz[2] = float (Z); | |
54 | ||
55 | myParam.Height = int (AHeight); | |
56 | ||
57 | myParam.HAlign = AHta; | |
58 | myParam.VAlign = AVta; | |
59 | } | |
60 | ||
61 | /*----------------------------------------------------------------------*/ | |
62 | ||
63 | OpenGl_Text::~OpenGl_Text () | |
64 | { | |
65 | if (myString) | |
66 | delete[] myString; | |
67 | } | |
68 | ||
69 | /*----------------------------------------------------------------------*/ | |
70 | ||
71 | void OpenGl_Text::Render (const Handle(OpenGl_Workspace) &AWorkspace) const | |
72 | { | |
73 | if ( AWorkspace->DegenerateModel > 0 && AWorkspace->SkipRatio >= 1.f ) | |
74 | return; | |
75 | ||
76 | const OpenGl_AspectText *aspect_text = AWorkspace->AspectText( Standard_True ); | |
77 | ||
78 | const TEL_COLOUR *tcolor, *scolor; | |
79 | ||
80 | // Use highlight colours | |
81 | if( AWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT ) | |
82 | { | |
83 | tcolor = scolor = AWorkspace->HighlightColor; | |
84 | } | |
85 | else | |
86 | { | |
87 | tcolor = &aspect_text->Color(); | |
88 | scolor = &aspect_text->SubtitleColor(); | |
89 | } | |
90 | ||
91 | // Handle annotation style | |
92 | GLboolean flag_zbuffer = GL_FALSE; | |
93 | if (aspect_text->StyleType() == Aspect_TOST_ANNOTATION) | |
94 | { | |
95 | flag_zbuffer = glIsEnabled(GL_DEPTH_TEST); | |
96 | if (flag_zbuffer) glDisable(GL_DEPTH_TEST); | |
97 | } | |
98 | ||
99 | AWorkspace->SetTextParam(&myParam); | |
100 | ||
2166f0fa SK |
101 | GLdouble modelMatrix[16], projMatrix[16]; |
102 | GLint viewport[4]; | |
103 | GLdouble objrefX, objrefY, objrefZ; | |
104 | GLdouble objX, objY, objZ; | |
105 | GLdouble obj1X, obj1Y, obj1Z; | |
106 | GLdouble obj2X, obj2Y, obj2Z; | |
107 | GLdouble obj3X, obj3Y, obj3Z; | |
108 | GLdouble winx1, winy1, winz1; | |
109 | GLdouble winx, winy, winz; | |
110 | GLint status; | |
111 | ||
112 | /* display type of text */ | |
113 | if (aspect_text->DisplayType() != Aspect_TODT_NORMAL) | |
114 | { | |
115 | /* Optimisation: il faudrait ne faire le Get qu'une fois par Redraw */ | |
116 | glGetIntegerv (GL_VIEWPORT, viewport); | |
117 | glGetDoublev (GL_MODELVIEW_MATRIX, modelMatrix); | |
118 | glGetDoublev (GL_PROJECTION_MATRIX, projMatrix); | |
119 | ||
120 | switch (aspect_text->DisplayType()) | |
121 | { | |
122 | case Aspect_TODT_BLEND: | |
2166f0fa SK |
123 | glEnable(GL_COLOR_LOGIC_OP); |
124 | glLogicOp(GL_XOR); | |
125 | break; | |
126 | case Aspect_TODT_SUBTITLE: | |
127 | { | |
128 | int sWidth, sAscent, sDescent; | |
129 | AWorkspace->StringSize(myString, sWidth, sAscent, sDescent); | |
130 | ||
131 | objrefX = (float)myAttachPnt.xyz[0]; | |
132 | objrefY = (float)myAttachPnt.xyz[1]; | |
133 | objrefZ = (float)myAttachPnt.xyz[2]; | |
134 | status = gluProject (objrefX, objrefY, objrefZ, modelMatrix, projMatrix, viewport, | |
135 | &winx1, &winy1, &winz1); | |
136 | ||
137 | winx = winx1; | |
138 | winy = winy1-sDescent; | |
139 | winz = winz1+0.00001; | |
140 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
141 | &objX, &objY, &objZ); | |
142 | ||
143 | winx = winx1 + sWidth; | |
144 | winy = winy1-sDescent; | |
145 | winz = winz1+0.00001; /* il vaut mieux F+B / 1000000 ? */ | |
146 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
147 | &obj1X, &obj1Y, &obj1Z); | |
148 | ||
149 | winx = winx1 + sWidth; | |
150 | winy = winy1 + sAscent; | |
151 | winz = winz1+0.00001; | |
152 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
153 | &obj2X, &obj2Y, &obj2Z); | |
154 | ||
155 | winx = winx1; | |
156 | winy = winy1+ sAscent; | |
157 | winz = winz1+0.00001; | |
158 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
159 | &obj3X, &obj3Y, &obj3Z); | |
160 | ||
161 | glColor3fv( scolor->rgb ); | |
162 | glBegin(GL_POLYGON); | |
163 | glVertex3d(objX, objY, objZ); | |
164 | glVertex3d(obj1X, obj1Y, obj1Z); | |
165 | glVertex3d(obj2X, obj2Y, obj2Z); | |
166 | glVertex3d(obj3X, obj3Y, obj3Z); | |
167 | glEnd(); | |
168 | break; | |
169 | } | |
170 | ||
171 | case Aspect_TODT_DEKALE: | |
172 | objrefX = (float)myAttachPnt.xyz[0]; | |
173 | objrefY = (float)myAttachPnt.xyz[1]; | |
174 | objrefZ = (float)myAttachPnt.xyz[2]; | |
175 | status = gluProject (objrefX, objrefY, objrefZ, modelMatrix, projMatrix, viewport, | |
176 | &winx1, &winy1, &winz1); | |
177 | ||
178 | winx = winx1+1; | |
179 | winy = winy1+1; | |
180 | winz = winz1+0.00001; | |
181 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
182 | &objX, &objY, &objZ); | |
183 | ||
184 | glColor3fv( scolor->rgb ); | |
185 | AWorkspace->RenderText( myString, 0, (float)objX, (float)objY,(float)objZ ); | |
186 | winx = winx1-1; | |
187 | winy = winy1-1; | |
188 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
189 | &objX, &objY, &objZ); | |
190 | ||
191 | AWorkspace->RenderText( myString, 0, (float)objX, (float)objY,(float)objZ ); | |
192 | winx = winx1-1; | |
193 | winy = winy1+1; | |
194 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
195 | &objX, &objY, &objZ); | |
196 | ||
197 | AWorkspace->RenderText( myString, 0, (float)objX, (float)objY,(float)objZ ); | |
198 | winx = winx1+1; | |
199 | winy = winy1-1; | |
200 | status = gluUnProject (winx, winy, winz, modelMatrix, projMatrix, viewport, | |
201 | &objX, &objY, &objZ); | |
202 | AWorkspace->RenderText( myString, 0, (float)objX, (float)objY,(float)objZ ); | |
203 | break; | |
204 | } | |
205 | } | |
206 | ||
207 | glColor3fv( tcolor->rgb ); | |
208 | AWorkspace->RenderText( myString, 0, (float)myAttachPnt.xyz[0], (float)myAttachPnt.xyz[1],(float)myAttachPnt.xyz[2] ); | |
209 | /* maj attributs */ | |
210 | if (flag_zbuffer) glEnable(GL_DEPTH_TEST); | |
211 | if (aspect_text->DisplayType() == Aspect_TODT_BLEND) | |
212 | { | |
2166f0fa SK |
213 | glDisable(GL_COLOR_LOGIC_OP); |
214 | } | |
215 | } | |
216 | ||
5e27df78 | 217 | void OpenGl_Text::Release (const Handle(OpenGl_Context)& theContext) |
218 | { | |
219 | // | |
220 | } |