paysages3d/src/gui/tab_sky.c

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C
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/* Terrain tab */
#include "common.h"
#include "../shared/functions.h"
#include "../shared/constants.h"
#include "../sky.h"
#include <math.h>
static SmallPreview* _preview_horizon;
static SkyDefinition _definition;
static Color _cbPreviewHorizon(SmallPreview* preview, double x, double y, double xoffset, double yoffset, double scaling)
{
Vector3 eye = {0.0, 0.0, 0.0};
Vector3 look;
look.x = x;
look.y = -y;
look.z = 1.0;
return skyGetColorCustom(eye, look, &_definition, NULL, NULL);
}
static inline void _updatePreview()
{
skyValidateDefinition(&_definition);
guiPreviewRedraw(_preview_horizon);
}
static void _redrawColorGradation(GtkImage* image, ColorGradation* gradation)
{
GdkPixbuf* pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, 1, 8, 250, 20);
void* pixels = gdk_pixbuf_get_pixels(pixbuf);
int rowstride = gdk_pixbuf_get_rowstride(pixbuf);
int x, y;
guint32* pixel;
Color col;
for (x = 0; x < 250; x++)
{
for (y = 0; y < 20; y++)
{
pixel = (guint32*)(pixels + y * rowstride + x * 4);
col = colorGradationGet(gradation, (double)x / 250.0);
*pixel = (guint32)colorTo32BitRGBA(&col);
}
}
gtk_image_set_from_pixbuf(image, pixbuf);
gdk_pixbuf_unref(pixbuf);
}
static void _cbDaytimeChanged(GtkRange* range, gpointer data)
{
_definition.daytime = gtk_range_get_value(range);
_updatePreview();
}
static void _cbSunSizeChanged(GtkRange* range, gpointer data)
{
_definition.sun_radius = gtk_range_get_value(range);
_updatePreview();
}
static void _cbHazeHeightChanged(GtkRange* range, gpointer data)
{
_definition.haze_height = gtk_range_get_value(range);
_updatePreview();
}
static void _cbHazeSmoothingChanged(GtkRange* range, gpointer data)
{
_definition.haze_smoothing = gtk_range_get_value(range);
_updatePreview();
}
static void _cbRevertConfig(GtkWidget* widget, gpointer data)
{
skyCopyDefinition(skyGetDefinition(), &_definition);
gtk_range_set_value(GTK_RANGE(GET_WIDGET("sky_daytime")), _definition.daytime);
gtk_range_set_value(GTK_RANGE(GET_WIDGET("sky_sun_size")), _definition.sun_radius);
gtk_range_set_value(GTK_RANGE(GET_WIDGET("sky_haze_height")), _definition.haze_height);
gtk_range_set_value(GTK_RANGE(GET_WIDGET("sky_haze_smoothing")), _definition.haze_smoothing);
_redrawColorGradation(GTK_IMAGE(GET_WIDGET("sky_colorgradient_sun")), &_definition.sun_color);
_redrawColorGradation(GTK_IMAGE(GET_WIDGET("sky_colorgradient_zenith")),& _definition.zenith_color);
_redrawColorGradation(GTK_IMAGE(GET_WIDGET("sky_colorgradient_haze")), &_definition.haze_color);
_updatePreview();
}
static void _cbApplyConfig(GtkWidget* widget, gpointer data)
{
skySetDefinition(_definition);
guiUpdate();
}
void guiSkyInit()
{
_definition = skyCreateDefinition();
/* Buttons */
g_signal_connect(GET_WIDGET("sky_apply"), "clicked", G_CALLBACK(_cbApplyConfig), NULL);
g_signal_connect(GET_WIDGET("sky_revert"), "clicked", G_CALLBACK(_cbRevertConfig), NULL);
/* Configs */
gtk_range_set_range(GTK_RANGE(GET_WIDGET("sky_daytime")), 0.0, 1.0);
gtk_range_set_range(GTK_RANGE(GET_WIDGET("sky_sun_size")), 0.0, 1.0);
gtk_range_set_range(GTK_RANGE(GET_WIDGET("sky_haze_height")), 0.0, 1.0);
gtk_range_set_range(GTK_RANGE(GET_WIDGET("sky_haze_smoothing")), 0.0, 1.0);
/* Config signals */
g_signal_connect(GET_WIDGET("sky_daytime"), "value-changed", G_CALLBACK(_cbDaytimeChanged), NULL);
g_signal_connect(GET_WIDGET("sky_sun_size"), "value-changed", G_CALLBACK(_cbSunSizeChanged), NULL);
g_signal_connect(GET_WIDGET("sky_haze_height"), "value-changed", G_CALLBACK(_cbHazeHeightChanged), NULL);
g_signal_connect(GET_WIDGET("sky_haze_smoothing"), "value-changed", G_CALLBACK(_cbHazeSmoothingChanged), NULL);
/* Previews */
_preview_horizon = guiPreviewNew(GTK_IMAGE(GET_WIDGET("sky_preview_horizon")));
guiPreviewConfigScaling(_preview_horizon, 0.01, 0.01, 0.0);
guiPreviewConfigScrolling(_preview_horizon, 0.0, 0.0, 0.0, 0.0);
guiPreviewSetViewport(_preview_horizon, 0.0, 0.0, 0.01);
guiPreviewSetRenderer(_preview_horizon, _cbPreviewHorizon);
guiSkyUpdate();
}
void guiSkyUpdate()
{
_cbRevertConfig(NULL, NULL);
}