perso
/
finalcut
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

A rotozoomer example was added to demonstrate the drawing speed of FINAL CUT

This commit is contained in:
Markus Gans 2020-03-08 22:25:13 +01:00
parent 45218b0f61
commit 86ccd30eae
4 changed files with 245 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
View File

@ -58,6 +58,7 @@ examples/listview
examples/checklist examples/checklist
examples/treeview examples/treeview
examples/mandelbrot examples/mandelbrot
examples/rotozoomer
examples/keyboard examples/keyboard
examples/mouse examples/mouse
examples/timer examples/timer

4
ChangeLog
View File

@ -1,3 +1,7 @@
2020-03-08 Markus Gans <guru.mail@muenster.de>
* A rotozoomer example was added to demonstrate the drawing speed
of FINAL CUT
2020-03-07 Markus Gans <guru.mail@muenster.de> 2020-03-07 Markus Gans <guru.mail@muenster.de>
* Fixes keyboard input buffer problem when opening a modal dialog * Fixes keyboard input buffer problem when opening a modal dialog
* Exit the move-resize-mode when the close confirmation dialog * Exit the move-resize-mode when the close confirmation dialog

2
examples/Makefile.am
View File

@ -22,6 +22,7 @@ noinst_PROGRAMS = \
termcap \ termcap \
string-operations \ string-operations \
mandelbrot \ mandelbrot \
rotozoomer \
calculator \ calculator \
watch \ watch \
term-attributes \ term-attributes \
@ -48,6 +49,7 @@ treeview_SOURCES = treeview.cpp
opti_move_SOURCES = opti-move.cpp opti_move_SOURCES = opti-move.cpp
string_operations_SOURCES = string-operations.cpp string_operations_SOURCES = string-operations.cpp
mandelbrot_SOURCES = mandelbrot.cpp mandelbrot_SOURCES = mandelbrot.cpp
rotozoomer_SOURCES = rotozoomer.cpp
calculator_SOURCES = calculator.cpp calculator_SOURCES = calculator.cpp
watch_SOURCES = watch.cpp watch_SOURCES = watch.cpp
term_attributes_SOURCES = term-attributes.cpp term_attributes_SOURCES = term-attributes.cpp

238
examples/rotozoomer.cpp Normal file
View File

@ -0,0 +1,238 @@
/***********************************************************************
* rotozoomer.cpp - Rotozoomer effect demo *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2020 Markus Gans *
* *
* The Final Cut is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* The Final Cut is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
***********************************************************************/
#include <cmath>
#include <final/final.h>
namespace fc = finalcut::fc;
using finalcut::FPoint;
using finalcut::FSize;
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// This rotozoomer demo is based on the code of Robert Dörfler
// http://bloerp.de/code/tempel/roto.c
// http://bloerp.de/code/tempel/tempel-des-codes.html
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//----------------------------------------------------------------------
// class RotoZoomer
//----------------------------------------------------------------------
class RotoZoomer : public finalcut::FDialog
{
public:
// Constructor
explicit RotoZoomer (finalcut::FWidget* = nullptr);
// Destructor
~RotoZoomer() override;
// Event handlers
void onShow (finalcut::FShowEvent*) override;
void onTimer (finalcut::FTimerEvent*) override;
void onKeyPress (finalcut::FKeyEvent*) override;
void onClose (finalcut::FCloseEvent*) override;
private:
// Methods
void draw() override;
void rotozoomer (double, double, double, double);
void adjustSize() override;
// Data member
wchar_t data[256]{};
int path{0};
};
//----------------------------------------------------------------------
RotoZoomer::RotoZoomer (finalcut::FWidget* parent)
: finalcut::FDialog(parent)
{
setText ("Rotozoomer effect");
int h{0};
for (int j{0}; j < 8; j++)
{
for (int i{0}; i < 8; i++)
{
data[h++] = L' ';
}
for (int i{0}; i < 8; i++)
{
data[h++] = L'+';
}
}
for (int j{0}; j < 8; j++)
{
for (int i{0}; i < 8; i++)
{
data[h++] = L'x';
}
for (int i{0}; i < 8; i++)
{
data[h++] = L' ';
}
}
}
//----------------------------------------------------------------------
RotoZoomer::~RotoZoomer()
{ }
//----------------------------------------------------------------------
void RotoZoomer::draw()
{
finalcut::FDialog::draw();
double cx = double(80.0 / 2.0 + (80.0 / 2.0 * std::sin(double(path) / 50.0)));
double cy = double(23.0 + (23.0 * std::cos(double(path) / 50.0)));
double r = double(128.0 + 96.0 * std::cos(double(path) / 10.0));
double a = double(path) / 50.0;
print() << finalcut::FColorPair(fc::White, fc::Black);
rotozoomer (cx, cy, r, a);
}
//----------------------------------------------------------------------
void RotoZoomer::rotozoomer (double cx, double cy, double r, double a)
{
const int Cols = int(getClientWidth());
const int Lines = int(getClientHeight());
int Ax = int(4096.0 * (cx + r * std::cos(a)));
int Ay = int(4096.0 * (cy + r * std::sin(a)));
int Bx = int(4096.0 * (cx + r * std::cos(a + 2.02358)));
int By = int(4096.0 * (cy + r * std::sin(a + 2.02358)));
int Cx = int(4096.0 * (cx + r * std::cos(a - 1.11701)));
int Cy = int(4096.0 * (cy + r * std::sin(a - 1.11701)));
int dxdx = (Bx - Ax) / 80;
int dydx = (By - Ay) / 80;
int dxdy = (Cx - Ax) / 23;
int dydy = (Cy - Ay) / 23;
for (int y = 0; y < Lines; y++)
{
Cx = Ax;
Cy = Ay;
print() << FPoint(2, 3 + y);
for (int x = 0; x < Cols; x++)
{
wchar_t ch = data[((Cy >> 14) & 0xf) + ((Cx >> 10) & 0xf0)];
if ( ch == '+' )
print() << finalcut::FColorPair(fc::Black, fc::Red);
else if ( ch == 'x' )
print() << finalcut::FColorPair(fc::Black, fc::Cyan);
else
print() << finalcut::FColorPair(fc::Black, fc::White);
print() << ch;
Cx += dxdx;
Cy += dydx;
}
Ax += dxdy;
Ay += dydy;
}
}
//----------------------------------------------------------------------
void RotoZoomer::onShow (finalcut::FShowEvent*)
{
addTimer(33);
}
//----------------------------------------------------------------------
void RotoZoomer::onTimer (finalcut::FTimerEvent*)
{
if ( path >= 314 )
path = 0;
else
path++;
redraw();
updateTerminal();
flush();
}
//----------------------------------------------------------------------
void RotoZoomer::onKeyPress (finalcut::FKeyEvent* ev)
{
if ( ! ev )
return;
if ( ev->key() == 'q' )
{
close();
ev->accept();
}
else
finalcut::FDialog::onKeyPress(ev);
}
//----------------------------------------------------------------------
void RotoZoomer::onClose (finalcut::FCloseEvent* ev)
{
finalcut::FApplication::closeConfirmationDialog (this, ev);
}
//----------------------------------------------------------------------
void RotoZoomer::adjustSize()
{
std::size_t h = getDesktopHeight();
std::size_t w = getDesktopWidth();
if ( h > 1 )
h--;
if ( w > 8 )
w -= 8;
setGeometry(FPoint(5, 1), FSize(w, h), false);
finalcut::FDialog::adjustSize();
}
//----------------------------------------------------------------------
// main part
//----------------------------------------------------------------------
int main (int argc, char* argv[])
{
// Create the application object
finalcut::FApplication app(argc, argv);
app.setNonBlockingRead();
// Create a simple dialog box
RotoZoomer p(&app);
p.setGeometry (FPoint(5, 1), FSize(72, 23));
p.setShadow();
// Set the RotoZoomer object as main widget
app.setMainWidget(&p);
// Show and start the application
p.show();
return app.exec();
}