GNU Octave  6.2.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
display.h
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25 
26 #if ! defined (octave_display_h)
27 #define octave_display_h 1
28 
29 #include "octave-config.h"
30 
31 #include <string>
32 
33 class Matrix;
34 
35 namespace octave
36 {
38  {
39  public:
40 
41  // Create object with default values. To be useful, you must call
42  // initialize to find the actual system parameters for the given
43  // display.
44 
45  display_info (void)
46  : m_rx (72), m_ry (72), m_ht (1), m_wd (1), m_dp (0),
47  m_dpy_avail (false), m_msg ()
48  { }
49 
50  ~display_info (void) = default;
51 
52  display_info (const display_info&) = default;
53 
55 
56  void initialize (void);
57 
58  double x_dpi (void) const { return m_rx; }
59 
60  double y_dpi (void) const { return m_ry; }
61 
62  int height (void) const { return m_ht; }
63 
64  int width (void) const { return m_wd; }
65 
66  int depth (void) const { return m_dp; }
67 
68  bool display_available (void) const { return m_dpy_avail; }
69 
70  std::string message (void) const { return m_msg; }
71 
72  private:
73 
74  // X- and Y- Resolution of the display in dots (pixels) per inch.
75  double m_rx;
76  double m_ry;
77 
78  // Height, width, and depth of the display.
79  int m_ht;
80  int m_wd;
81  int m_dp;
82 
84 
85  // Message associated with any initiailization failure. Set if
86  // m_dpy_avail is false.
87  std::string m_msg;
88  };
89 }
90 
91 #endif
Definition: dMatrix.h:42
void initialize(void)
Definition: display.cc:42
~display_info(void)=default
double x_dpi(void) const
Definition: display.h:58
bool display_available(void) const
Definition: display.h:68
display_info(const display_info &)=default
std::string message(void) const
Definition: display.h:70
int depth(void) const
Definition: display.h:66
int height(void) const
Definition: display.h:62
display_info & operator=(const display_info &)=default
int width(void) const
Definition: display.h:64
double y_dpi(void) const
Definition: display.h:60
std::string m_msg
Definition: display.h:87