xref: /haiku/src/libs/print/libprint/PrintUtils.cpp (revision cbe0a0c436162d78cc3f92a305b64918c839d079)
1 /*
2 
3 Preview printer driver.
4 
5 Copyright (c) 2001, 2002 OpenBeOS.
6 Copyright (c) 2005 - 2008 Haiku.
7 
8 Authors:
9 	Philippe Houdoin
10 	Simon Gauvin
11 	Michael Pfeiffer
12 
13 Permission is hereby granted, free of charge, to any person obtaining a copy of
14 this software and associated documentation files (the "Software"), to deal in
15 the Software without restriction, including without limitation the rights to
16 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
17 of the Software, and to permit persons to whom the Software is furnished to do
18 so, subject to the following conditions:
19 
20 The above copyright notice and this permission notice shall be included in all
21 copies or substantial portions of the Software.
22 
23 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
24 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
26 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
27 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
28 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 THE SOFTWARE.
30 
31 */
32 
33 #include "PrintUtils.h"
34 
35 
36 #include <Message.h>
37 #include <Window.h>
38 
39 
40 BRect
41 ScaleRect(const BRect& rect, float scale)
42 {
43 	BRect scaleRect(rect);
44 
45 	scaleRect.left *= scale;
46 	scaleRect.right *= scale;
47 	scaleRect.top *= scale;
48 	scaleRect.bottom *= scale;
49 
50 	return scaleRect;
51 }
52 
53 
54 void
55 SetBool(BMessage* msg, const char* name, bool value)
56 {
57 	if (msg->HasBool(name)) {
58 		msg->ReplaceBool(name, value);
59 	} else {
60 		msg->AddBool(name, value);
61 	}
62 }
63 
64 
65 void
66 SetFloat(BMessage* msg, const char* name, float value)
67 {
68 	if (msg->HasFloat(name)) {
69 		msg->ReplaceFloat(name, value);
70 	} else {
71 		msg->AddFloat(name, value);
72 	}
73 }
74 
75 
76 void
77 SetInt32(BMessage* msg, const char* name, int32 value)
78 {
79 	if (msg->HasInt32(name)) {
80 		msg->ReplaceInt32(name, value);
81 	} else {
82 		msg->AddInt32(name, value);
83 	}
84 }
85 
86 
87 void
88 SetString(BMessage* msg, const char* name, const char* value)
89 {
90 	if (msg->HasString(name, 0)) {
91 		msg->ReplaceString(name, value);
92 	} else {
93 		msg->AddString(name, value);
94 	}
95 }
96 
97 
98 void
99 SetRect(BMessage* msg, const char* name, const BRect& rect)
100 {
101 	if (msg->HasRect(name)) {
102 		msg->ReplaceRect(name, rect);
103 	} else {
104 		msg->AddRect(name, rect);
105 	}
106 }
107 
108 
109 void
110 SetString(BMessage* msg, const char* name, const BString& value)
111 {
112 	SetString(msg, name, value.String());
113 }
114 
115 
116 static
117 bool InList(const char* list[], const char* name)
118 {
119 	for (int i = 0; list[i] != NULL; ++i) {
120 		if (strcmp(list[i], name) == 0)
121 			return true;
122 	}
123 	return false;
124 }
125 
126 
127 void
128 AddFields(BMessage* to, const BMessage* from, const char* excludeList[],
129 	const char* includeList[], bool overwrite)
130 {
131 	if (to == from)
132 		return;
133 	char* name;
134 	type_code type;
135 	int32 count;
136 	for (int32 i = 0; from->GetInfo(B_ANY_TYPE, i, &name, &type, &count)
137 		== B_OK; ++i) {
138 		if (excludeList && InList(excludeList, name))
139 			continue;
140 
141 		if (includeList && !InList(includeList, name))
142 			continue;
143 
144 		ssize_t size;
145 		const void* data;
146 		if (!overwrite && to->FindData(name, type, 0, &data, &size) == B_OK)
147 			continue;
148 
149 		// replace existing data
150 		to->RemoveName(name);
151 
152 		for (int32 j = 0; j < count; ++j) {
153 			if (from->FindData(name, type, j, &data, &size) == B_OK) {
154 				if (type == B_STRING_TYPE) {
155 					to->AddString(name, (const char*)data);
156 				} else if (type == B_MESSAGE_TYPE) {
157 					BMessage m;
158 					from->FindMessage(name, j, &m);
159 					to->AddMessage(name, &m);
160 				} else {
161 					to->AddData(name, type, data, size);
162 				}
163 			}
164 		}
165 	}
166 }
167