paysages: Qt GUI (WIP)

git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@204 b1fd45b6-86a6-48da-8261-f70d1f35bdcc
This commit is contained in:
Michaël Lemaire 2011-12-26 21:53:29 +00:00 committed by ThunderK
parent cb5b7d527a
commit 199f306226
5 changed files with 467 additions and 2 deletions

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@ -1,13 +1,47 @@
#include "preview.h"
#include "formwater.h" #include "formwater.h"
#include "ui_formwater.h" #include "ui_formwater.h"
#include <QColor>
#include "../lib_paysages/water.h"
#include "../lib_paysages/shared/functions.h"
class PreviewCoverage:private Preview
{
public:
PreviewCoverage(QWidget* parent):
Preview(parent)
{
}
protected:
QColor getColor(double x, double y)
{
double height;
height = terrainGetHeight(x, y);
if (height > 0.0)
{
height = terrainGetHeightNormalized(x, y);
return QColor((int)(255.0 * height), (int)(255.0 * height), (int)(255.0 * height));
}
else
{
return QColor(0, 0, 255);
}
}
};
FormWater::FormWater(QWidget *parent) : FormWater::FormWater(QWidget *parent) :
QWidget(parent), QWidget(parent),
ui(new Ui::FormWater) ui(new Ui::FormWater)
{ {
PreviewCoverage* previewCoverage;
ui->setupUi(this); ui->setupUi(this);
this->findChild<QToolBox*>("water_configs")->setCurrentIndex(0); this->findChild<QToolBox*>("water_configs")->setCurrentIndex(0);
previewCoverage = new PreviewCoverage(this->findChild<QWidget*>("water_preview_coverage"));
} }
FormWater::~FormWater() FormWater::~FormWater()

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@ -1,5 +1,6 @@
#include <QApplication> #include <QApplication>
#include "mainwindow.h" #include "mainwindow.h"
#include "preview.h"
#include "../lib_paysages/shared/functions.h" #include "../lib_paysages/shared/functions.h"
@ -12,5 +13,7 @@ int main(int argc, char** argv)
window.show(); window.show();
Preview::startUpdater();
return app.exec(); return app.exec();
} }

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@ -13,9 +13,11 @@ LIBS += -L../lib_paysages/ -lpaysages
# Input # Input
HEADERS += ../lib_paysages/shared/functions.h ../lib_paysages/shared/types.h \ HEADERS += ../lib_paysages/shared/functions.h ../lib_paysages/shared/types.h \
mainwindow.h \ mainwindow.h \
formwater.h formwater.h \
preview.h
FORMS += mainwindow.ui \ FORMS += mainwindow.ui \
formwater.ui formwater.ui
SOURCES += main.cc \ SOURCES += main.cc \
mainwindow.cpp \ mainwindow.cpp \
formwater.cpp formwater.cpp \
preview.cpp

378
gui_qt/preview.cpp Normal file
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@ -0,0 +1,378 @@
#include "preview.h"
#include <QVector>
#include <QPainter>
#include <QThread>
#include <QTimer>
static QVector<Preview*> _previews;
class PreviewDrawer:public QThread
{
public:
PreviewDrawer()
{
}
protected:
void run()
{
QVectorIterator<Preview*> iter(_previews);
while (true)
{
while (iter.hasNext())
{
iter.next()->doRender();
}
QThread::usleep(50000);
}
}
};
Preview::Preview(QWidget* parent) :
QWidget(parent)
{
_previews.append(this);
this->lock = new QMutex();
this->conf_scroll_xmin = 0.0;
this->conf_scroll_xmax = 0.0;
this->conf_scroll_ymin = 0.0;
this->conf_scroll_ymax = 0.0;
this->conf_scale_min = 1.0;
this->conf_scale_max = 1.0;
this->conf_scale_step = 0.0;
this->scaling = 1.0;
this->xoffset = 0.0;
this->yoffset = 0.0;
this->pixbuf = new QImage(this->size(), QImage::Format_ARGB32);
this->need_rerender = 0;
this->need_render = 0;
this->resize(parent->size());
}
void Preview::startUpdater()
{
(new PreviewDrawer())->start();
}
void Preview::doRender()
{
if (this->need_rerender)
{
this->forceRender();
}
if (this->need_render)
{
this->need_render = 0;
this->renderPixbuf();
}
}
void Preview::resizeEvent(QResizeEvent* event)
{
QImage* image;
this->lock->lock();
image = this->pixbuf;
this->pixbuf = new QImage(this->size(), QImage::Format_ARGB32);
delete image;
this->lock->unlock();
this->forceRender();
}
void Preview::paintEvent(QPaintEvent* event)
{
QPainter painter(this);
painter.drawImage(0, 0, *this->pixbuf);
}
void Preview::forceRender()
{
this->lock->lock();
this->pixbuf->fill(0x00000000);
this->need_rerender = 0;
this->need_render = 1;
this->lock->unlock();
}
void Preview::renderPixbuf()
{
QColor col;
bool done;
int x, y, w, h;
w = this->pixbuf->width();
h = this->pixbuf->height();
for (x = 0; x < w; x++)
{
this->lock->lock();
if (this->need_rerender)
{
this->lock->unlock();
break;
}
done = false;
for (y = 0; y < h; y++)
{
if (qAlpha(this->pixbuf->pixel(x, y)) == 0)
{
col = this->getColor((double)(x - w / 2) * this->scaling + this->xoffset, (double)(y - h / 2) * this->scaling + this->yoffset);
this->pixbuf->setPixel(x, y, col.rgb());
done = true;
}
}
if (done)
{
this->update();
}
this->lock->unlock();
}
}
//static void _scrollPixbuf(SmallPreview* preview, int dx, int dy)
//{
// int xstart, ystart, xsize, ysize, y;
// void* pixels = gdk_pixbuf_get_pixels(preview->pixbuf);
// int rowstride = gdk_pixbuf_get_rowstride(preview->pixbuf);
// preview->xoffset -= (double)dx * preview->scaling;
// preview->yoffset -= (double)dy * preview->scaling;
// /* TODO Use pixbuf size */
// if (dx == 0 && dy == 0)
// {
// return;
// }
// else if (dx <= -256 || dx >= 256 || dy <= -256 || dy >= 256)
// {
// _forceRender(preview);
// }
// else
// {
// if (dx < 0)
// {
// xstart = -dx;
// xsize = 256 + dx;
// }
// else
// {
// xstart = 0;
// xsize = 256 - dx;
// }
// if (dy < 0)
// {
// ystart = -dy;
// ysize = 256 + dy;
// }
// else
// {
// ystart = 0;
// ysize = 256 - dy;
// }
// memmove(pixels + (ystart + dy) * rowstride + (xstart + dx) * 4, pixels + ystart * rowstride + xstart * 4, (ysize - 1) * rowstride + xsize * 4);
// if (dy < 0)
// {
// memset(pixels + (256 + dy) * rowstride, 0, (-dy - 1) * rowstride + 256 * 4);
// }
// else if (dy > 0)
// {
// memset(pixels, 0, (dy - 1) * rowstride + 256 * 4);
// }
// if (dx < 0)
// {
// for (y = ystart + dy; y < ystart + dy + ysize; y++)
// {
// memset(pixels + y * rowstride + xsize * 4, 0, -dx * 4);
// }
// }
// else if (dx > 0)
// {
// for (y = ystart + dy; y < ystart + dy + ysize; y++)
// {
// memset(pixels + y * rowstride, 0, dx * 4);
// }
// }
// preview->need_render = 1;
// }
//}
//static inline int _fixScroll(SmallPreview* preview, int dx, int dy, int* new_dx, int* new_dy)
//{
// *new_dx = dx;
// *new_dy = dy;
// if (preview->xoffset - dx * preview->scaling > preview->conf_scroll_xmax)
// {
// *new_dx = (int)floor((preview->conf_scroll_xmax - preview->xoffset) / preview->scaling);
// }
// if (preview->xoffset - dx * preview->scaling < preview->conf_scroll_xmin)
// {
// *new_dx = (int)floor((preview->conf_scroll_xmin - preview->xoffset) / preview->scaling);
// }
// if (preview->yoffset - dy * preview->scaling > preview->conf_scroll_ymax)
// {
// *new_dy = (int)floor((preview->conf_scroll_ymax - preview->yoffset) / preview->scaling);
// }
// if (preview->yoffset - dy * preview->scaling < preview->conf_scroll_ymin)
// {
// *new_dy = (int)floor((preview->conf_scroll_ymin - preview->yoffset) / preview->scaling);
// }
// return (*new_dx == 0 && *new_dy == 0) ? 0 : 1;
//}
//static inline int _fixScaling(SmallPreview* preview, double scaling, double* new_scaling)
//{
// double old_scaling = preview->scaling;
// *new_scaling = scaling;
// if (scaling < preview->conf_scale_min)
// {
// *new_scaling = preview->conf_scale_min;
// }
// if (scaling > preview->conf_scale_max)
// {
// *new_scaling = preview->conf_scale_max;
// }
// return (old_scaling == *new_scaling) ? 0 : 1;
//}
//static int _cbMouseScroll(GtkEventBox* image, GdkEventScroll* event, gpointer data)
//{
// SmallPreview* preview = (SmallPreview*)data;
// /* TODO Center the zoom on the cursor */
// if (event->direction == GDK_SCROLL_UP)
// {
// mutexAcquire(preview->lock);
// if (_fixScaling(preview, preview->scaling - preview->conf_scale_step, &preview->scaling))
// {
// preview->need_rerender = 1;
// }
// mutexRelease(preview->lock);
// }
// else if (event->direction == GDK_SCROLL_DOWN)
// {
// mutexAcquire(preview->lock);
// if (_fixScaling(preview, preview->scaling + preview->conf_scale_step, &preview->scaling))
// {
// preview->need_rerender = 1;
// }
// mutexRelease(preview->lock);
// }
// return 1;
//}
//static int _cbMouseButtonPressed(GtkEventBox* image, GdkEventButton* event, gpointer data)
//{
// SmallPreview* preview = (SmallPreview*)data;
// if (event->button == 1)
// {
// preview->mousex = (int)event->x;
// preview->mousey = (int)event->y;
// }
// return 1;
//}
//static int _cbMouseMove(GtkEventBox* image, GdkEventMotion* event, gpointer data)
//{
// SmallPreview* preview = (SmallPreview*)data;
// int dx, dy;
// if (event->state & GDK_BUTTON1_MASK)
// {
// mutexAcquire(preview->lock);
// dx = (int)event->x - preview->mousex;
// dy = (int)event->y - preview->mousey;
// if (_fixScroll(preview, dx, dy, &dx, &dy))
// {
// _scrollPixbuf(preview, dx, dy);
// }
// preview->mousex = (int)event->x;
// preview->mousey = (int)event->y;
// mutexRelease(preview->lock);
// }
// return 1;
//}
//void guiPreviewRedraw(SmallPreview* preview)
//{
// mutexAcquire(preview->lock);
// preview->need_rerender = 1;
// mutexRelease(preview->lock);
//}
//void guiPreviewRedrawAll()
//{
// int i;
// for (i = 0; i < _previews_count; i++)
// {
// guiPreviewRedraw(_preview + i);
// }
//}
//void guiPreviewConfigScrolling(SmallPreview* preview, double xmin, double xmax, double ymin, double ymax)
//{
// mutexAcquire(preview->lock);
// preview->conf_scroll_xmin = xmin;
// preview->conf_scroll_xmax = xmax;
// preview->conf_scroll_ymin = ymin;
// preview->conf_scroll_ymax = ymax;
// preview->need_rerender = 1;
// mutexRelease(preview->lock);
//}
//void guiPreviewConfigScaling(SmallPreview* preview, double min, double max, double step)
//{
// mutexAcquire(preview->lock);
// preview->conf_scale_min = min;
// preview->conf_scale_max = max;
// preview->conf_scale_step = step;
// preview->need_rerender = 1;
// mutexRelease(preview->lock);
//}
//void guiPreviewSetRenderer(SmallPreview* preview, SmallPreviewCallback renderer)
//{
// mutexAcquire(preview->lock);
// preview->renderer = renderer;
// preview->need_rerender = 1;
// mutexRelease(preview->lock);
//}
//void guiPreviewSetViewport(SmallPreview* preview, double xoffset, double yoffset, double scaling)
//{
// mutexAcquire(preview->lock);
// preview->xoffset = xoffset;
// preview->yoffset = yoffset;
// preview->scaling = scaling;
// preview->need_rerender = 1;
// mutexRelease(preview->lock);
//}
//void guiPreviewSetTerrainHeight(SmallPreview* preview)
//{
// /*preview->conf_scroll_x = 1;
// preview->conf_scroll_y = 1;
// preview->conf_zoom = 1;
// preview->init_scaling = preview->scaling = 0.1;
// preview->init_xoffset = preview->xoffset = 0.0;
// preview->init_yoffset = preview->yoffset = 0.0;
// preview->renderer = _renderTopDownHeight;*/
// guiPreviewRedraw(preview);
//}

48
gui_qt/preview.h Normal file
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@ -0,0 +1,48 @@
#ifndef PREVIEW_H
#define PREVIEW_H
#include <QMutex>
#include <QImage>
#include <QWidget>
class Preview:public QWidget
{
public:
Preview(QWidget* parent);
static void startUpdater();
void doRender();
protected:
void resizeEvent(QResizeEvent* event);
void paintEvent(QPaintEvent* event);
virtual QColor getColor(double x, double y) = 0;
private:
void renderPixbuf();
void forceRender();
double conf_scroll_xmin;
double conf_scroll_xmax;
double conf_scroll_ymin;
double conf_scroll_ymax;
double conf_scale_min;
double conf_scale_max;
double conf_scale_step;
double xoffset;
double yoffset;
double scaling;
QMutex* lock;
QImage* pixbuf;
int mousex;
int mousey;
int need_rerender;
int need_render;
//SmallPreviewCallback renderer;
};
#endif // PREVIEW_H