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Side by Side Diff: printing/units.h

Issue 2116283002: Don't let rounding prematurely influence document size when printing (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@620456-2
Patch Set: bug 467579 Created 4 years, 5 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef PRINTING_UNITS_H_ 5 #ifndef PRINTING_UNITS_H_
6 #define PRINTING_UNITS_H_ 6 #define PRINTING_UNITS_H_
7 7
8 #include "printing/printing_export.h" 8 #include "printing/printing_export.h"
9 9
10 namespace printing { 10 namespace printing {
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33 33
34 // A4: 8.27 x 11.69 inches 34 // A4: 8.27 x 11.69 inches
35 const float kA4WidthInch = 8.27f; 35 const float kA4WidthInch = 8.27f;
36 const float kA4HeightInch = 11.69f; 36 const float kA4HeightInch = 11.69f;
37 37
38 // A3: 11.69 x 16.54 inches 38 // A3: 11.69 x 16.54 inches
39 const float kA3WidthInch = 11.69f; 39 const float kA3WidthInch = 11.69f;
40 const float kA3HeightInch = 16.54f; 40 const float kA3HeightInch = 16.54f;
41 41
42 // Converts from one unit system to another using integer arithmetics. 42 // Converts from one unit system to another using integer arithmetics.
43 PRINTING_EXPORT int ConvertUnit(int value, int old_unit, int new_unit); 43 PRINTING_EXPORT int ConvertUnit(double value, int old_unit, int new_unit);
44 44
45 // Converts from one unit system to another using doubles. 45 // Converts from one unit system to another using doubles.
46 PRINTING_EXPORT double ConvertUnitDouble(double value, double old_unit, 46 PRINTING_EXPORT double ConvertUnitDouble(double value, double old_unit,
47 double new_unit); 47 double new_unit);
48 48
49 // Converts from 0.001 inch unit to 0.00001 meter. 49 // Converts from 0.001 inch unit to 0.00001 meter.
50 PRINTING_EXPORT int ConvertMilliInchToHundredThousanthMeter(int milli_inch); 50 PRINTING_EXPORT int ConvertMilliInchToHundredThousanthMeter(int milli_inch);
51 51
52 // Converts from 0.00001 meter unit to 0.001 inch. 52 // Converts from 0.00001 meter unit to 0.001 inch.
53 PRINTING_EXPORT int ConvertHundredThousanthMeterToMilliInch(int cmm); 53 PRINTING_EXPORT int ConvertHundredThousanthMeterToMilliInch(int cmm);
54 54
55 // Converts from 1 pixel to 1 point using integers. 55 // Converts from 1 pixel to 1 point using integers.
56 PRINTING_EXPORT int ConvertPixelsToPoint(int pixels); 56 PRINTING_EXPORT int ConvertPixelsToPoint(int pixels);
57 57
58 // Converts from 1 pixel to 1 point using doubles. 58 // Converts from 1 pixel to 1 point using doubles.
59 PRINTING_EXPORT double ConvertPixelsToPointDouble(double pixels); 59 PRINTING_EXPORT double ConvertPixelsToPointDouble(double pixels);
60 60
61 // Converts from 1 point to 1 pixel using doubles. 61 // Converts from 1 point to 1 pixel using doubles.
62 PRINTING_EXPORT double ConvertPointsToPixelDouble(double points); 62 PRINTING_EXPORT double ConvertPointsToPixelDouble(double points);
63 63
64 } // namespace printing 64 } // namespace printing
65 65
66 #endif // PRINTING_UNITS_H_ 66 #endif // PRINTING_UNITS_H_
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