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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <GL3DBarChart.hxx>
#include <GL/glew.h>
#include <glm/glm.hpp>
#include <glm/gtx/transform.hpp>
#include "3DChartObjects.hxx"
#include "GL3DRenderer.hxx"
#include <ExplicitCategoriesProvider.hxx>
#include <DataSeriesHelper.hxx>
using namespace com::sun::star;
namespace chart {
GL3DBarChart::GL3DBarChart(
const css::uno::Reference<css::chart2::XChartType>& xChartType,
OpenGLWindow& rWindow) :
mxChartType(xChartType),
mpRenderer(new opengl3D::OpenGL3DRenderer()),
mrWindow(rWindow),
mpCamera(NULL)
{
Size aSize = mrWindow.GetSizePixel();
mpRenderer->SetSize(aSize);
mrWindow.setRenderer(this);
mpRenderer->init();
}
GL3DBarChart::~GL3DBarChart()
{
mrWindow.setRenderer(NULL);
}
void GL3DBarChart::create3DShapes(const boost::ptr_vector<VDataSeries>& rDataSeriesContainer,
ExplicitCategoriesProvider& rCatProvider)
{
// Each series of data flows from left to right, and multiple series are
// stacked vertically along y axis.
// NOTE: These objects are created and positioned in a totally blind
// fashion since we don't even have a way to see them on screen. So, no
// guarantee they are positioned correctly. In fact, they are guaranteed
// to be positioned incorrectly.
const float nBarSizeX = 10;
const float nBarSizeY = 10;
const float nBarDistanceX = nBarSizeX / 2;
const float nBarDistanceY = nBarSizeY / 2;
sal_uInt32 nId = 1;
float nXEnd = 0.0;
float nYPos = 0.0;
const Color aSeriesColor[] = {
COL_RED, COL_GREEN, COL_YELLOW, COL_BROWN, COL_GRAY
};
maShapes.clear();
maShapes.push_back(new opengl3D::Camera(mpRenderer.get()));
mpCamera = static_cast<opengl3D::Camera*>(&maShapes.back());
sal_Int32 nSeriesIndex = 0;
for (boost::ptr_vector<VDataSeries>::const_iterator itr = rDataSeriesContainer.begin(),
itrEnd = rDataSeriesContainer.end(); itr != itrEnd; ++itr)
{
nYPos = nSeriesIndex * (nBarSizeY + nBarDistanceY);
const VDataSeries& rDataSeries = *itr;
sal_Int32 nPointCount = rDataSeries.getTotalPointCount();
bool bMappedFillProperty = rDataSeries.hasPropertyMapping("FillColor");
// Create series name text object.
OUString aSeriesName =
DataSeriesHelper::getDataSeriesLabel(
rDataSeries.getModel(), mxChartType->getRoleOfSequenceForSeriesLabel());
maShapes.push_back(new opengl3D::Text(mpRenderer.get(), aSeriesName, nId++));
opengl3D::Text* p = static_cast<opengl3D::Text*>(&maShapes.back());
Size aTextSize = p->getSize();
glm::vec3 aTopLeft, aTopRight, aBottomRight;
aTopLeft.x = aTextSize.getWidth() * -1.0;
aTopLeft.y = nYPos;
aTopRight.y = nYPos;
aBottomRight = aTopRight;
aBottomRight.y += aTextSize.getHeight();
p->setPosition(aTopLeft, aTopRight, aBottomRight);
sal_Int32 nColor = aSeriesColor[nSeriesIndex % SAL_N_ELEMENTS(aSeriesColor)].GetColor();
for(sal_Int32 nIndex = 0; nIndex < nPointCount; ++nIndex)
{
if(bMappedFillProperty)
{
nColor = static_cast<sal_uInt32>(rDataSeries.getValueByProperty(nIndex, "FillColor"));
}
float nVal = rDataSeries.getYValue(nIndex);
float nXPos = nIndex * (nBarSizeX + nBarDistanceX);
glm::mat4 aScaleMatrix = glm::scale(nBarSizeX, nBarSizeY, nVal);
glm::mat4 aTranslationMatrix = glm::translate(nXPos, nYPos, 0.0f);
glm::mat4 aBarPosition = aTranslationMatrix * aScaleMatrix;
maShapes.push_back(new opengl3D::Bar(mpRenderer.get(), aBarPosition, nColor, nId++));
}
float nThisXEnd = nPointCount * (nBarSizeX + nBarDistanceX);
if (nXEnd < nThisXEnd)
nXEnd = nThisXEnd;
++nSeriesIndex;
}
nYPos += nBarSizeY + nBarDistanceY;
// X axis
maShapes.push_back(new opengl3D::Line(mpRenderer.get(), nId++));
opengl3D::Line* pAxis = static_cast<opengl3D::Line*>(&maShapes.back());
glm::vec3 aBegin;
aBegin.y = nYPos;
glm::vec3 aEnd = aBegin;
aEnd.x = nXEnd;
pAxis->setPosition(aBegin, aEnd);
pAxis->setLineColor(COL_BLUE);
// Y axis
maShapes.push_back(new opengl3D::Line(mpRenderer.get(), nId++));
pAxis = static_cast<opengl3D::Line*>(&maShapes.back());
aBegin.x = aBegin.y = 0;
aEnd = aBegin;
aEnd.y = nYPos;
pAxis->setPosition(aBegin, aEnd);
pAxis->setLineColor(COL_BLUE);
// Chart background.
maShapes.push_back(new opengl3D::Rectangle(mpRenderer.get(), nId++));
opengl3D::Rectangle* pRect = static_cast<opengl3D::Rectangle*>(&maShapes.back());
glm::vec3 aTopLeft;
glm::vec3 aTopRight = aTopLeft;
aTopRight.x = nXEnd;
glm::vec3 aBottomRight = aTopRight;
aBottomRight.y = nYPos;
pRect->setPosition(aTopLeft, aTopRight, aBottomRight);
pRect->setFillColor(COL_BLACK);
pRect->setLineColor(COL_BLUE);
// Create category texts along X-axis at the bottom.
uno::Sequence<OUString> aCats = rCatProvider.getSimpleCategories();
for (sal_Int32 i = 0; i < aCats.getLength(); ++i)
{
float nXPos = i * (nBarSizeX + nBarDistanceX);
maShapes.push_back(new opengl3D::Text(mpRenderer.get(), aCats[i], nId++));
opengl3D::Text* p = static_cast<opengl3D::Text*>(&maShapes.back());
Size aTextSize = p->getSize();
aTopLeft.x = nXPos;
aTopLeft.y = nYPos;
aTopRight = aTopLeft;
aTopRight.x += aTextSize.getWidth();
aBottomRight = aTopRight;
aBottomRight.y += aTextSize.getHeight();
p->setPosition(aTopLeft, aTopRight, aBottomRight);
}
}
void GL3DBarChart::render()
{
mrWindow.getContext()->makeCurrent();
Size aSize = mrWindow.GetSizePixel();
mpRenderer->SetSize(aSize);
mrWindow.getContext()->setWinSize(aSize);
for(boost::ptr_vector<opengl3D::Renderable3DObject>::iterator itr = maShapes.begin(),
itrEnd = maShapes.end(); itr != itrEnd; ++itr)
{
itr->render();
}
mpRenderer->ProcessUnrenderedShape();
mrWindow.getContext()->swapBuffers();
}
void GL3DBarChart::update()
{
render();
}
namespace {
class PickingModeSetter
{
private:
opengl3D::OpenGL3DRenderer* mpRenderer;
public:
PickingModeSetter(opengl3D::OpenGL3DRenderer* pRenderer):
mpRenderer(pRenderer)
{
mpRenderer->SetPickingMode(true);
}
~PickingModeSetter()
{
mpRenderer->SetPickingMode(false);
}
};
}
void GL3DBarChart::clickedAt(const Point& rPos)
{
sal_uInt32 nId = 1;
{
PickingModeSetter aPickingModeSetter(mpRenderer.get());
render();
nId = mpRenderer->GetPixelColorFromPoint(rPos.X(), rPos.Y());
}
if (mpCamera && nId != COL_WHITE)
mpCamera->zoom(nId);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
