1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
#include "GuiView.h"
#include "igl.h"
#include "math/Matrix4.h"
#include <functional>
#include "debugging/gl.h"
namespace wxutil
{
namespace
{
const int DEFAULT_WIDTH = 640;
const int DEFAULT_HEIGHT = 480;
}
GuiView::GuiView(wxWindow* parent) :
GLWidget(parent, std::bind(&GuiView::draw, this), "GUI")
{
SetMinSize(wxSize(DEFAULT_WIDTH, DEFAULT_HEIGHT));
// greebo: The "size-allocate" event is needed to determine the window size, as expose-event is
// often called for subsets of the widget and the size info in there is therefore not reliable.
Connect(wxEVT_SIZE, wxSizeEventHandler(GuiView::onSizeAllocate), NULL, this);
// Ignore visibility flag and turn invisible background images to visible ones
_renderer.setIgnoreVisibility(true);
}
void GuiView::redraw()
{
Refresh();
}
void GuiView::setGui(const gui::IGuiPtr& gui)
{
// Check for equality
if (gui != _gui)
{
_gui = gui;
_renderer.setGui(gui);
}
}
const gui::IGuiPtr& GuiView::getGui()
{
return _gui;
}
void GuiView::setWindowDefFilter(const std::string& windowDef)
{
_renderer.setWindowDefFilter(windowDef);
}
void GuiView::initialiseView()
{
}
void GuiView::setGLViewPort()
{
debug::assertNoGlErrors();
double width = _windowDims[0];
double height = _windowDims[1];
double aspectRatio = static_cast<double>(DEFAULT_WIDTH) / DEFAULT_HEIGHT;
if (width / height > aspectRatio)
{
width = height * aspectRatio;
}
else
{
height = width / aspectRatio;
}
glViewport(0, 0, static_cast<GLsizei>(width), static_cast<GLsizei>(height));
debug::assertNoGlErrors();
}
bool GuiView::draw()
{
if (!_gui) return false;
debug::assertNoGlErrors();
// Clear the window
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glClearColor(0.0, 0.0, 0.0, 0);
glClearDepth(100.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Set up the camera
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// Enable depth buffer writing, to be safe
glDepthMask(GL_TRUE);
debug::assertNoGlErrors();
// Prepare the GUI for rendering, like re-compiling texts etc.
// This has to be performed before states are initialised
_gui->pepareRendering();
debug::assertNoGlErrors();
setGLViewPort();
debug::assertNoGlErrors();
// Set up the scale
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
debug::assertNoGlErrors();
_renderer.render();
return true;
}
void GuiView::onSizeAllocate(wxSizeEvent& ev)
{
// Store the window dimensions for later calculations
_windowDims = Vector2(ev.GetSize().GetWidth(), ev.GetSize().GetHeight());
ev.Skip();
}
} // namespace
|
