void key(unsigned char key, int x, int y)
{
glutPostRedisplay();
if (key == BACKSPACE) {
/* Reset value */
switch (mode) {
case 't':
tx = 0;
ty = 0;
break;
case 'x':
sx = 1.0f;
break;
case 'y':
sy = 1.0f;
break;
}
updateOverlayString();
return;
}
switch (tolower(key)) {
case 't':
case 'x':
case 'y':
break;
case TAB:
/* Cycle spread mode */
tindex = (tindex+1) % tsize;
createPattern();
switch(tindex) {
case 0: testOverlayString("Pattern Tiling mode: FILL\n"); break;
case 1: testOverlayString("Pattern Tiling mode: PAD\n"); break;
case 2: testOverlayString("Pattern Tiling mode: REPEAT\n"); break;
case 3: testOverlayString("Pattern Tiling mode: REFLECT\n"); break;
}return;
case 'h':
/* Show help */
testOverlayString(commands);
return;
default:
return;
}
/* Switch mode */
mode = tolower(key);
updateOverlayString();
}
void key(unsigned char code, int x, int y)
{
switch (tolower(code)) {
case 'z':
case 'p':
break;
case ' ':
/* Toggle animation */
animate = !animate;
testOverlayString("%s\n", animate ? "Play" : "Pause");
return;
case 'h':
/* Show help */
testOverlayString(commands);
return;
default:
return;
}
/* Switch mode */
mode = tolower(code);
updateOverlayString();
}
void drag(int x, int y)
{
VGfloat dx, dy;
y = testHeight() - y;
dx = x - clickX;
dy = y - clickY;
switch (mode) {
case 'z':
sx = startY + dy * 0.01;
sy = sx;
break;
case 'p':
tx = startX + dx;
ty = startY + dy;
break;
}
updateOverlayString();
}
void drag(int x, int y)
{
VGfloat dx, dy;
y = testHeight() - y;
dx = x - clickX;
dy = y - clickY;
switch(mode) {
case 'c': {
VGfloat dcx, dcy;
dcx = startX + dx - cx;
dcy = startY + dy - cy;
cx = startX + dx;
cy = startY + dy;
fx += dcx;
fy += dcy;
createRadial();
break; }
case 'f':
fx = startX + dx;
fy = startY + dy;
createRadial();
break;
case 'r':
r = startY + dy;
createRadial();
break;
case 'x':
sx = startY + dy * 0.01f;
break;
case 'y':
sy = startY + dy * 0.01f;
break;
}
updateOverlayString();
glutPostRedisplay();
}
void drag(int x, int y)
{
VGfloat dx, dy;
y = testHeight() - y;
dx = x - clickX;
dy = y - clickY;
switch(mode) {
case 't': {
tx = startX + dx;
ty = startY + dy;
break;}
case 'x':
sx = startY + dy * 0.01;
break;
case 'y':
sy = startY + dy * 0.01;
break;
}
updateOverlayString();
glutPostRedisplay();
}
void key(unsigned char key, int x, int y)
{
glutPostRedisplay();
if (key == BACKSPACE) {
/* Reset value */
switch(mode) {
case 'c':
cx = testWidth()/2;
cy = testHeight()/2;
fx = cx; fy = cy;
createRadial();
break;
case 'f':
fx = cx; fy = cy;
createRadial();
break;
case 'r':
r = sqx;
createRadial();
break;
case 'x':
sx = 1.0f;
break;
case 'y':
sy = 1.0f;
break;
}
updateOverlayString();
return;
}
switch (tolower(key)) {
case 'c':
case 'f':
case 'r':
case 'x':
case 'y':
break;
case TAB:
/* Cycle spread mode */
sindex = (sindex+1) % ssize;
createRadial();
switch(sindex) {
case 0: testOverlayString("Gradient Spread mode: PAD"); break;
case 1: testOverlayString("Gradient Spread mode: REPEAT"); break;
case 2: testOverlayString("Gradient Spread mode: REFLECT"); break;
}return;
case 'h':
/* Show help */
testOverlayString(commands);
return;
default:
return;
}
/* Switch mode */
mode = tolower(key);
updateOverlayString();
}
