paysages : Terrain canvas - Height map painting (WIP).

git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@389 b1fd45b6-86a6-48da-8261-f70d1f35bdcc

gui_qt/baseformlayer.cpp

@@ -48,8 +48,10 @@ QStringList BaseFormLayer::getLayers()
 
 void BaseFormLayer::layerAddedEvent()
 {
-    if (layersAddLayer(_layers_modified, NULL) >= 0)
+    int layer = layersAddLayer(_layers_modified, NULL);
+    if (layer >= 0)
     {
+        layersSetName(_layers_modified, layer, tr("Unnamed").toUtf8().data());
         BaseForm::layerAddedEvent();
     }
 }

gui_qt/dialogheightmap.cpp

@@ -1,10 +1,11 @@
 #include "dialogheightmap.h"
-#include "widgetheightmap.h"
 
 #include <QBoxLayout>
 #include <QGridLayout>
 #include <QPushButton>
 #include <QSlider>
+#include <math.h>
+#include "widgetheightmap.h"
 
 /**************** Dialog form ****************/
 DialogHeightMap::DialogHeightMap(QWidget* parent, HeightMap* heightmap) : DialogWithPreview(parent)
@@ -47,12 +48,17 @@ DialogHeightMap::DialogHeightMap(QWidget* parent, HeightMap* heightmap) : Dialog
     _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
     button = new QPushButton(tr("Reset to terrain height"), buttons);
+    connect(button, SIGNAL(clicked()), _3dview, SLOT(resetToTerrain()));
     panel->layout()->addWidget(button);
 
     // Buttons layout
@@ -91,3 +97,13 @@ void DialogHeightMap::accept()
 void DialogHeightMap::revert()
 {
 }
+
+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);
+}

gui_qt/dialogheightmap.h

@@ -15,6 +15,10 @@ public:
 public slots:
     virtual void accept();
     void revert();
+    
+private slots:
+    void angleHChanged(int value);
+    void angleVChanged(int value);
 
 private:
     HeightMap* _value_original;

gui_qt/widgetheightmap.cpp

@@ -4,6 +4,8 @@
 #include <math.h>
 #include <GL/glu.h>
 #include "tools.h"
+#include "../lib_paysages/terrain.h"
+#include "../lib_paysages/scenery.h"
 
 WidgetHeightMap::WidgetHeightMap(QWidget *parent, HeightMap* heightmap):
     QGLWidget(parent)
@@ -11,15 +13,55 @@ WidgetHeightMap::WidgetHeightMap(QWidget *parent, HeightMap* heightmap):
     setMinimumSize(500, 500);
     setFocusPolicy(Qt::StrongFocus);
 
+    _heightmap = heightmap;
+    
     _average_frame_time = 0.0;
+    
     _last_mouse_x = 0;
     _last_mouse_y = 0;
+    
+    _angle_h = 0.0;
+    _angle_v = 0.3;
 }
 
 WidgetHeightMap::~WidgetHeightMap()
 {
 }
 
+void WidgetHeightMap::setHorizontalViewAngle(double angle_h)
+{
+    _angle_h = angle_h;
+    updateGL();
+}
+
+void WidgetHeightMap::setVerticalViewAngle(double angle_v)
+{
+    _angle_v = angle_v;
+    updateGL();
+}
+
+void WidgetHeightMap::resetToTerrain()
+{
+    TerrainDefinition terrain;
+    
+    terrain = terrainCreateDefinition();
+    sceneryGetTerrain(&terrain);
+    
+    // TODO Apply geoarea
+    int rx = _heightmap->resolution_x;
+    int rz = _heightmap->resolution_z;
+    for (int x = 0; x < rx; x++)
+    {
+        for (int z = 0; z < rz; z++)
+        {
+            _heightmap->data[z * rx + x] = terrainGetHeight(&terrain, 80.0 * (double)x / (double)(rx - 1) - 40.0, 80.0 * (double)z / (double)(rz - 1) - 40.0);
+        }
+    }
+
+    terrainDeleteDefinition(&terrain);
+    updateGL();
+}
+
 void WidgetHeightMap::keyPressEvent(QKeyEvent* event)
 {
 }
@@ -65,7 +107,7 @@ void WidgetHeightMap::resizeGL(int w, int h)
 
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
-    //gluPerspective(_current_camera.yfov * 180.0 / M_PI, _current_camera.xratio, _current_camera.znear, _current_camera.zfar);
+    gluPerspective(1.57 * 180.0 / M_PI, 1.0, 1.0, 1000.0);
     
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 }
@@ -75,16 +117,30 @@ void WidgetHeightMap::paintGL()
     GLenum error_code;
     QTime start_time;
     double frame_time;
+    int rx, rz;
     
     start_time = QTime::currentTime();
     
     // Place camera
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
-    //gluLookAt(_current_camera.location.x, _current_camera.location.y, _current_camera.location.z, _current_camera.target.x, _current_camera.target.y, _current_camera.target.z, _current_camera.up.x, _current_camera.up.y, _current_camera.up.z);
+    gluLookAt(50.0 * cos(_angle_h) * cos(_angle_v), 50.0 * sin(_angle_v), -50.0 * sin(_angle_h) * cos(_angle_v), 0.0, 0.0, 0.0, -cos(_angle_h) * sin(_angle_v), cos(_angle_v), sin(_angle_h) * sin(_angle_v));
 
     // Background
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    
+    glBegin(GL_POINTS);
+    glColor3d(1.0, 0.0, 0.0);
+    rx = _heightmap->resolution_x;
+    rz = _heightmap->resolution_z;
+    for (int x = 0; x < rx; x++)
+    {
+        for (int z = 0; z < rz; z++)
+        {
+            glVertex3d(80.0 * (double)x / (double)(rx - 1) - 40.0, _heightmap->data[z * rx + x], 80.0 * (double)z / (double)(rz - 1) - 40.0);
+        }
+    }
+    glEnd();
 
     // Time stats
     frame_time = 0.001 * (double)start_time.msecsTo(QTime::currentTime());

gui_qt/widgetheightmap.h

@@ -10,6 +10,12 @@ class WidgetHeightMap : public QGLWidget
 public:
     WidgetHeightMap(QWidget* parent, HeightMap* heightmap);
     ~WidgetHeightMap();
+    
+    void setHorizontalViewAngle(double angle_h);
+    void setVerticalViewAngle(double angle_v);
+    
+public slots:
+    void resetToTerrain();
 
 protected:
     void keyPressEvent(QKeyEvent* event);
@@ -22,9 +28,15 @@ protected:
     void paintGL();
     
 private:
+    HeightMap* _heightmap;
+    
     double _average_frame_time;
+    
     int _last_mouse_x;
     int _last_mouse_y;
+    
+    double _angle_h;
+    double _angle_v;
 };
 
 #endif

lib_paysages/heightmap.c

@@ -54,3 +54,17 @@ void heightmapLoad(PackStream* stream, HeightMap* heightmap)
         packReadDouble(stream, &heightmap->data[i]);
     }
 }
+
+void heightmapChangeResolution(HeightMap* heightmap, int resolution_x, int resolution_z)
+{
+    int i;
+    
+    heightmap->resolution_x = resolution_x;
+    heightmap->resolution_z = resolution_z;
+    heightmap->data = realloc(heightmap->data, sizeof(double) * heightmap->resolution_x * heightmap->resolution_z);
+    
+    for (i = 0; i < heightmap->resolution_x * heightmap->resolution_z; i++)
+    {
+        heightmap->data[i] = 0.0;
+    }
+}

lib_paysages/heightmap.h

@@ -23,6 +23,8 @@ void heightmapValidate(HeightMap* heightmap);
 
 void heightmapSave(PackStream* stream, HeightMap* heightmap);
 void heightmapLoad(PackStream* stream, HeightMap* heightmap);
+
+void heightmapChangeResolution(HeightMap* heightmap, int resolution_x, int resolution_z);
     
 #ifdef __cplusplus
 }

lib_paysages/layers.c

@@ -57,7 +57,12 @@ void layersCopy(Layers* source, Layers* destination)
 {
     int i;
     
-    assert(source->type == destination->type);
+    assert(source->type.callback_copy == destination->type.callback_copy);
+    assert(source->type.callback_create == destination->type.callback_create);
+    assert(source->type.callback_delete == destination->type.callback_delete);
+    assert(source->type.callback_load == destination->type.callback_load);
+    assert(source->type.callback_save == destination->type.callback_save);
+    assert(source->type.callback_validate == destination->type.callback_validate);
     assert(source->max_count == destination->max_count);
 
     /* TODO Optimize by reusing common layers */
@@ -157,6 +162,7 @@ int layersAddLayer(Layers* layers, void* definition)
         
         layers->count++;
         layersSetName(layers, layers->count - 1, "unnamed");
+        return layers->count - 1;
     }
     else
     {

lib_paysages/terraincanvas.c

@@ -14,6 +14,7 @@ TerrainCanvas* terrainCanvasCreate()
     result->area.size_z = 1.0;
     result->offset_z = 0.0;
     result->height_map = heightmapCreate();
+    heightmapChangeResolution(&result->height_map, 256, 256);
     result->height_factor = 1.0;
     result->detail_noise = noiseCreateGenerator();
     result->detail_height_factor = 0.1;