paysages3d/gui_qt/dialogheightmap.cpp

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#include "dialogheightmap.h"
#include <QLabel>
#include <QBoxLayout>
#include <QGridLayout>
#include <QPushButton>
#include <QComboBox>
#include <QSlider>
#include <QFileDialog>
#include <QInputDialog>
#include <math.h>
#include "../lib_paysages/terrain.h"
#include "../lib_paysages/scenery.h"
#include "widgetheightmap.h"
/**************** Dialog form ****************/
DialogHeightMap::DialogHeightMap(QWidget* parent, HeightMap* heightmap, TerrainCanvas* canvas) : DialogWithPreview(parent)
{
QWidget* mainarea;
QWidget* buttons;
QWidget* panel;
QWidget* viewer;
QGridLayout* viewer_layout;
QLabel* label;
QSlider* slider;
QPushButton* button;
QComboBox* combobox;
_canvas = canvas;
_value_original = heightmap;
_value_modified = heightmapCreate();
heightmapCopy(_value_original, &_value_modified);
setLayout(new QVBoxLayout());
// Dialog layout (main area + buttons)
mainarea = new QWidget(this);
mainarea->setLayout(new QHBoxLayout());
this->layout()->addWidget(mainarea);
buttons = new QWidget(this);
buttons->setLayout(new QHBoxLayout());
buttons->layout()->setAlignment(buttons, Qt::AlignBottom);
this->layout()->addWidget(buttons);
// Main area layout (viewer + panel)
viewer = new QWidget(mainarea);
viewer_layout = new QGridLayout();
viewer->setLayout(viewer_layout);
mainarea->layout()->addWidget(viewer);
panel = new QWidget(mainarea);
panel->setLayout(new QVBoxLayout());
mainarea->layout()->addWidget(panel);
mainarea->layout()->setAlignment(panel, Qt::AlignTop);
// Viewer layout (3d display + sliders)
_3dview = new WidgetHeightMap(viewer, &_value_modified);
viewer_layout->addWidget(_3dview, 0, 0);
slider = new QSlider(Qt::Horizontal, viewer);
slider->setRange(0, 1000);
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(angleHChanged(int)));
viewer_layout->addWidget(slider, 1, 0);
slider = new QSlider(Qt::Vertical, viewer);
slider->setRange(-300, 700);
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(angleVChanged(int)));
viewer_layout->addWidget(slider, 0, 1);
// Panel layout
if (canvas)
{
button = new QPushButton(tr("Reset to terrain height"), panel);
connect(button, SIGNAL(clicked()), this, SLOT(resetToTerrain()));
panel->layout()->addWidget(button);
}
button = new QPushButton(tr("Load from picture file"), panel);
connect(button, SIGNAL(clicked()), this, SLOT(loadFromFile()));
panel->layout()->addWidget(button);
button = new QPushButton(tr("Change resolution"), panel);
connect(button, SIGNAL(clicked()), this, SLOT(changeResolution()));
panel->layout()->addWidget(button);
_resolution_label = new QLabel("", panel);
panel->layout()->addWidget(_resolution_label);
updateResolutionLabel();
combobox = new QComboBox(panel);
combobox->addItem(tr("Raise / lower"));
combobox->addItem(tr("Add noise / smooth"));
connect(combobox, SIGNAL(currentIndexChanged(int)), this, SLOT(brushModeChanged(int)));
panel->layout()->addWidget(combobox);
label = new QLabel(tr("Brush size"), panel);
panel->layout()->addWidget(label);
slider = new QSlider(Qt::Horizontal, panel);
slider->setRange(6, 300);
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(brushSizeChanged(int)));
panel->layout()->addWidget(slider);
slider->setValue(60);
label = new QLabel(tr("Brush smoothing"), panel);
panel->layout()->addWidget(label);
slider = new QSlider(Qt::Horizontal, panel);
slider->setRange(0, 1000);
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(brushSmoothingChanged(int)));
panel->layout()->addWidget(slider);
slider->setValue(600);
label = new QLabel(tr("Brush strength"), panel);
panel->layout()->addWidget(label);
slider = new QSlider(Qt::Horizontal, panel);
slider->setRange(0, 1000);
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(brushStrengthChanged(int)));
panel->layout()->addWidget(slider);
slider->setValue(200);
// Buttons layout
button = new QPushButton(tr("Validate"), buttons);
buttons->layout()->addWidget(button);
QObject::connect(button, SIGNAL(clicked()), this, SLOT(accept()));
button = new QPushButton(tr("Revert"), buttons);
buttons->layout()->addWidget(button);
QObject::connect(button, SIGNAL(clicked()), this, SLOT(revert()));
button = new QPushButton(tr("Cancel"), buttons);
buttons->layout()->addWidget(button);
QObject::connect(button, SIGNAL(clicked()), this, SLOT(reject()));
setWindowTitle(tr("Paysages 3D - Height map painting"));
}
bool DialogHeightMap::editHeightMap(QWidget* parent, HeightMap* heightmap, TerrainCanvas* canvas)
{
int result;
DialogHeightMap* dialog = new DialogHeightMap(parent, heightmap, canvas);
result = dialog->exec();
delete dialog;
return (result != 0) ? true : false;
}
void DialogHeightMap::accept()
{
heightmapCopy(&_value_modified, _value_original);
QDialog::accept();
}
void DialogHeightMap::revert()
{
heightmapCopy(_value_original, &_value_modified);
_3dview->revert();
updateResolutionLabel();
}
void DialogHeightMap::angleHChanged(int value)
{
_3dview->setHorizontalViewAngle(M_PI * ((double)value) / 500.0);
}
void DialogHeightMap::angleVChanged(int value)
{
_3dview->setVerticalViewAngle(M_PI_2 * ((double)value) / 1000.0);
}
void DialogHeightMap::brushModeChanged(int value)
{
_3dview->setBrushMode((HeightMapBrushMode)value);
}
void DialogHeightMap::brushSizeChanged(int value)
{
_3dview->setBrushSize((double)value / 10.0);
}
void DialogHeightMap::brushSmoothingChanged(int value)
{
_3dview->setBrushSmoothing((double)value / 1000.0);
}
void DialogHeightMap::brushStrengthChanged(int value)
{
_3dview->setBrushStrength((double)value / 2000.0);
}
void DialogHeightMap::loadFromFile()
{
QString filepath = QFileDialog::getOpenFileName(this, tr("Paysages 3D - Choose a picture to load"), QString(), tr("Images (*.jpg *.jpeg *.bmp *.png)"));
if (!filepath.isNull())
{
heightmapImportFromPicture(&_value_modified, (char*) filepath.toStdString().c_str());
_3dview->revert();
updateResolutionLabel();
}
}
void DialogHeightMap::resetToTerrain()
{
if (_canvas)
{
TerrainDefinition terrain;
terrain = terrainCreateDefinition();
sceneryGetTerrain(&terrain);
heightmapRevertToTerrain(&_value_modified, &terrain, &_canvas->area);
terrainDeleteDefinition(&terrain);
_3dview->revert();
}
}
void DialogHeightMap::changeResolution()
{
QString result;
QStringList items;
int current;
items << QString("64 x 64") << QString("128 x 128") << QString("256 x 256") << QString("512 x 512");
current = 1;
if (_value_modified.resolution_x == 64 && _value_modified.resolution_z == 64)
{
current = 0;
}
else if (_value_modified.resolution_x == 256 && _value_modified.resolution_z == 256)
{
current = 2;
}
else if (_value_modified.resolution_x == 512 && _value_modified.resolution_z == 512)
{
current = 3;
}
result = QInputDialog::getItem(this, tr("Paysages 3D - Change heightmap resolution"), tr("Choose the new heightmap resolution. Beware that lowering the resolution may imply a loss of accuracy."), items, current, false);
if (!result.isEmpty())
{
int new_res_x, new_res_z;
if (result == QString("64 x 64"))
{
new_res_x = new_res_z = 64;
}
else if (result == QString("256 x 256"))
{
new_res_x = new_res_z = 256;
}
else if (result == QString("512 x 512"))
{
new_res_x = new_res_z = 512;
}
else
{
new_res_x = new_res_z = 128;
}
if (new_res_x != _value_modified.resolution_x or new_res_z != _value_modified.resolution_z)
{
heightmapChangeResolution(&_value_modified, new_res_x, new_res_z);
_3dview->revert();
updateResolutionLabel();
}
}
}
void DialogHeightMap::updateResolutionLabel()
{
_resolution_label->setText(tr("Map resolution : %1 x %2").arg(_value_modified.resolution_x).arg(_value_modified.resolution_z));
}