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extra-dependencies/debian/compiz-trinity/compiz-trinity-0.8.4/plugins/zoom.c

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Added debian extra dependency packages. Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
4 years ago
/*
* Copyright © 2005 Novell, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Novell, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* Novell, Inc. makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: David Reveman <davidr@novell.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <sys/time.h>
#include <X11/cursorfont.h>
#include <compiz-core.h>
static CompMetadata zoomMetadata;
static int displayPrivateIndex;
#define ZOOM_DISPLAY_OPTION_INITIATE_BUTTON 0
#define ZOOM_DISPLAY_OPTION_IN_BUTTON 1
#define ZOOM_DISPLAY_OPTION_OUT_BUTTON 2
#define ZOOM_DISPLAY_OPTION_PAN_BUTTON 3
#define ZOOM_DISPLAY_OPTION_NUM 4
typedef struct _ZoomDisplay {
int screenPrivateIndex;
HandleEventProc handleEvent;
CompOption opt[ZOOM_DISPLAY_OPTION_NUM];
} ZoomDisplay;
typedef struct _ZoomBox {
float x1;
float y1;
float x2;
float y2;
} ZoomBox;
#define ZOOM_SCREEN_OPTION_SPEED 0
#define ZOOM_SCREEN_OPTION_TIMESTEP 1
#define ZOOM_SCREEN_OPTION_ZOOM_FACTOR 2
#define ZOOM_SCREEN_OPTION_FILTER_LINEAR 3
#define ZOOM_SCREEN_OPTION_NUM 4
typedef struct _ZoomScreen {
PreparePaintScreenProc preparePaintScreen;
DonePaintScreenProc donePaintScreen;
PaintOutputProc paintOutput;
CompOption opt[ZOOM_SCREEN_OPTION_NUM];
float pointerSensitivity;
int grabIndex;
Bool grab;
int zoomed;
Bool adjust;
int panGrabIndex;
Cursor panCursor;
GLfloat velocity;
GLfloat scale;
ZoomBox current[16];
ZoomBox last[16];
int x1, y1, x2, y2;
int zoomOutput;
} ZoomScreen;
#define GET_ZOOM_DISPLAY(d) \
((ZoomDisplay *) (d)->base.privates[displayPrivateIndex].ptr)
#define ZOOM_DISPLAY(d) \
ZoomDisplay *zd = GET_ZOOM_DISPLAY (d)
#define GET_ZOOM_SCREEN(s, zd) \
((ZoomScreen *) (s)->base.privates[(zd)->screenPrivateIndex].ptr)
#define ZOOM_SCREEN(s) \
ZoomScreen *zs = GET_ZOOM_SCREEN (s, GET_ZOOM_DISPLAY (s->display))
#define NUM_OPTIONS(s) (sizeof ((s)->opt) / sizeof (CompOption))
static CompOption *
zoomGetScreenOptions (CompPlugin *plugin,
CompScreen *screen,
int *count)
{
ZOOM_SCREEN (screen);
*count = NUM_OPTIONS (zs);
return zs->opt;
}
static Bool
zoomSetScreenOption (CompPlugin *plugin,
CompScreen *screen,
const char *name,
CompOptionValue *value)
{
CompOption *o;
ZOOM_SCREEN (screen);
o = compFindOption (zs->opt, NUM_OPTIONS (zs), name, NULL);
if (!o)
return FALSE;
return compSetScreenOption (screen, o, value);
}
static int
adjustZoomVelocity (ZoomScreen *zs)
{
float d, adjust, amount;
d = (1.0f - zs->scale) * 10.0f;
adjust = d * 0.002f;
amount = fabs (d);
if (amount < 1.0f)
amount = 1.0f;
else if (amount > 5.0f)
amount = 5.0f;
zs->velocity = (amount * zs->velocity + adjust) / (amount + 1.0f);
return (fabs (d) < 0.02f && fabs (zs->velocity) < 0.005f);
}
static void
zoomInEvent (CompScreen *s)
{
CompOption o[6];
ZOOM_SCREEN (s);
o[0].type = CompOptionTypeInt;
o[0].name = "root";
o[0].value.i = s->root;
o[1].type = CompOptionTypeInt;
o[1].name = "output";
o[1].value.i = zs->zoomOutput;
o[2].type = CompOptionTypeInt;
o[2].name = "x1";
o[2].value.i = zs->current[zs->zoomOutput].x1;
o[3].type = CompOptionTypeInt;
o[3].name = "y1";
o[3].value.i = zs->current[zs->zoomOutput].y1;
o[4].type = CompOptionTypeInt;
o[4].name = "x2";
o[4].value.i = zs->current[zs->zoomOutput].x2;
o[5].type = CompOptionTypeInt;
o[5].name = "y2";
o[5].value.i = zs->current[zs->zoomOutput].y2;
(*s->display->handleCompizEvent) (s->display, "zoom", "in", o, 6);
}
static void
zoomOutEvent (CompScreen *s)
{
CompOption o[2];
ZOOM_SCREEN (s);
o[0].type = CompOptionTypeInt;
o[0].name = "root";
o[0].value.i = s->root;
o[1].type = CompOptionTypeInt;
o[1].name = "output";
o[1].value.i = zs->zoomOutput;
(*s->display->handleCompizEvent) (s->display, "zoom", "out", o, 2);
}
static void
zoomPreparePaintScreen (CompScreen *s,
int msSinceLastPaint)
{
ZOOM_SCREEN (s);
if (zs->adjust)
{
int steps;
float amount;
amount = msSinceLastPaint * 0.35f *
zs->opt[ZOOM_SCREEN_OPTION_SPEED].value.f;
steps = amount / (0.5f * zs->opt[ZOOM_SCREEN_OPTION_TIMESTEP].value.f);
if (!steps) steps = 1;
while (steps--)
{
if (adjustZoomVelocity (zs))
{
BoxPtr pBox = &s->outputDev[zs->zoomOutput].region.extents;
zs->scale = 1.0f;
zs->velocity = 0.0f;
zs->adjust = FALSE;
if (zs->current[zs->zoomOutput].x1 == pBox->x1 &&
zs->current[zs->zoomOutput].y1 == pBox->y1 &&
zs->current[zs->zoomOutput].x2 == pBox->x2 &&
zs->current[zs->zoomOutput].y2 == pBox->y2)
{
zs->zoomed &= ~(1 << zs->zoomOutput);
zoomOutEvent (s);
}
else
{
zoomInEvent (s);
}
break;
}
else
{
zs->scale += (zs->velocity * msSinceLastPaint) / s->redrawTime;
}
}
}
UNWRAP (zs, s, preparePaintScreen);
(*s->preparePaintScreen) (s, msSinceLastPaint);
WRAP (zs, s, preparePaintScreen, zoomPreparePaintScreen);
}
static void
zoomGetCurrentZoom (CompScreen *s,
int output,
ZoomBox *pBox)
{
ZOOM_SCREEN (s);
if (output == zs->zoomOutput)
{
float inverse;
inverse = 1.0f - zs->scale;
pBox->x1 = zs->scale * zs->current[output].x1 +
inverse * zs->last[output].x1;
pBox->y1 = zs->scale * zs->current[output].y1 +
inverse * zs->last[output].y1;
pBox->x2 = zs->scale * zs->current[output].x2 +
inverse * zs->last[output].x2;
pBox->y2 = zs->scale * zs->current[output].y2 +
inverse * zs->last[output].y2;
}
else
{
pBox->x1 = zs->current[output].x1;
pBox->y1 = zs->current[output].y1;
pBox->x2 = zs->current[output].x2;
pBox->y2 = zs->current[output].y2;
}
}
static void
zoomDonePaintScreen (CompScreen *s)
{
ZOOM_SCREEN (s);
if (zs->adjust)
damageScreen (s);
UNWRAP (zs, s, donePaintScreen);
(*s->donePaintScreen) (s);
WRAP (zs, s, donePaintScreen, zoomDonePaintScreen);
}
static Bool
zoomPaintOutput (CompScreen *s,
const ScreenPaintAttrib *sAttrib,
const CompTransform *transform,
Region region,
CompOutput *output,
unsigned int mask)
{
CompTransform zTransform = *transform;
Bool status;
ZOOM_SCREEN (s);
if (output->id != ~0 && (zs->zoomed & (1 << output->id)))
{
int saveFilter;
ZoomBox box;
float scale, x, y, x1, y1;
float oWidth = output->width;
float oHeight = output->height;
mask &= ~PAINT_SCREEN_REGION_MASK;
zoomGetCurrentZoom (s, output->id, &box);
x1 = box.x1 - output->region.extents.x1;
y1 = box.y1 - output->region.extents.y1;
scale = oWidth / (box.x2 - box.x1);
x = ((oWidth / 2.0f) - x1) / oWidth;
y = ((oHeight / 2.0f) - y1) / oHeight;
x = 0.5f - x * scale;
y = 0.5f - y * scale;
matrixTranslate (&zTransform, -x, y, 0.0f);
matrixScale (&zTransform, scale, scale, 1.0f);
mask |= PAINT_SCREEN_TRANSFORMED_MASK;
saveFilter = s->filter[SCREEN_TRANS_FILTER];
if ((zs->zoomOutput != output->id || !zs->adjust) && scale > 3.9f &&
!zs->opt[ZOOM_SCREEN_OPTION_FILTER_LINEAR].value.b)
s->filter[SCREEN_TRANS_FILTER] = COMP_TEXTURE_FILTER_FAST;
UNWRAP (zs, s, paintOutput);
status = (*s->paintOutput) (s, sAttrib, &zTransform, region, output,
mask);
WRAP (zs, s, paintOutput, zoomPaintOutput);
s->filter[SCREEN_TRANS_FILTER] = saveFilter;
}
else
{
UNWRAP (zs, s, paintOutput);
status = (*s->paintOutput) (s, sAttrib, transform, region, output,
mask);
WRAP (zs, s, paintOutput, zoomPaintOutput);
}
if (status && zs->grab)
{
int x1, x2, y1, y2;
x1 = MIN (zs->x1, zs->x2);
y1 = MIN (zs->y1, zs->y2);
x2 = MAX (zs->x1, zs->x2);
y2 = MAX (zs->y1, zs->y2);
if (zs->grabIndex)
{
transformToScreenSpace (s, output, -DEFAULT_Z_CAMERA, &zTransform);
glPushMatrix ();
glLoadMatrixf (zTransform.m);
glDisableClientState (GL_TEXTURE_COORD_ARRAY);
glEnable (GL_BLEND);
glColor4us (0x2fff, 0x2fff, 0x4fff, 0x4fff);
glRecti (x1, y2, x2, y1);
glColor4us (0x2fff, 0x2fff, 0x4fff, 0x9fff);
glBegin (GL_LINE_LOOP);
glVertex2i (x1, y1);
glVertex2i (x2, y1);
glVertex2i (x2, y2);
glVertex2i (x1, y2);
glEnd ();
glColor4usv (defaultColor);
glDisable (GL_BLEND);
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glPopMatrix ();
}
}
return status;
}
static void
zoomInitiateForSelection (CompScreen *s,
int output)
{
int tmp;
ZOOM_SCREEN (s);
if (zs->x1 > zs->x2)
{
tmp = zs->x1;
zs->x1 = zs->x2;
zs->x2 = tmp;
}
if (zs->y1 > zs->y2)
{
tmp = zs->y1;
zs->y1 = zs->y2;
zs->y2 = tmp;
}
if (zs->x1 < zs->x2 && zs->y1 < zs->y2)
{
float oWidth, oHeight;
float xScale, yScale, scale;
BoxRec box;
int cx, cy;
int width, height;
oWidth = s->outputDev[output].width;
oHeight = s->outputDev[output].height;
cx = (int) ((zs->x1 + zs->x2) / 2.0f + 0.5f);
cy = (int) ((zs->y1 + zs->y2) / 2.0f + 0.5f);
width = zs->x2 - zs->x1;
height = zs->y2 - zs->y1;
xScale = oWidth / width;
yScale = oHeight / height;
scale = MAX (MIN (xScale, yScale), 1.0f);
box.x1 = cx - (oWidth / scale) / 2.0f;
box.y1 = cy - (oHeight / scale) / 2.0f;
box.x2 = cx + (oWidth / scale) / 2.0f;
box.y2 = cy + (oHeight / scale) / 2.0f;
if (box.x1 < s->outputDev[output].region.extents.x1)
{
box.x2 += s->outputDev[output].region.extents.x1 - box.x1;
box.x1 = s->outputDev[output].region.extents.x1;
}
else if (box.x2 > s->outputDev[output].region.extents.x2)
{
box.x1 -= box.x2 - s->outputDev[output].region.extents.x2;
box.x2 = s->outputDev[output].region.extents.x2;
}
if (box.y1 < s->outputDev[output].region.extents.y1)
{
box.y2 += s->outputDev[output].region.extents.y1 - box.y1;
box.y1 = s->outputDev[output].region.extents.y1;
}
else if (box.y2 > s->outputDev[output].region.extents.y2)
{
box.y1 -= box.y2 - s->outputDev[output].region.extents.y2;
box.y2 = s->outputDev[output].region.extents.y2;
}
if (zs->zoomed & (1 << output))
{
zoomGetCurrentZoom (s, output, &zs->last[output]);
}
else
{
zs->last[output].x1 = s->outputDev[output].region.extents.x1;
zs->last[output].y1 = s->outputDev[output].region.extents.y1;
zs->last[output].x2 = s->outputDev[output].region.extents.x2;
zs->last[output].y2 = s->outputDev[output].region.extents.y2;
}
zs->current[output].x1 = box.x1;
zs->current[output].y1 = box.y1;
zs->current[output].x2 = box.x2;
zs->current[output].y2 = box.y2;
zs->scale = 0.0f;
zs->adjust = TRUE;
zs->zoomOutput = output;
zs->zoomed |= (1 << output);
damageScreen (s);
}
}
static Bool
zoomIn (CompDisplay *d,
CompAction *action,
CompActionState state,
CompOption *option,
int nOption)
{
CompScreen *s;
Window xid;
xid = getIntOptionNamed (option, nOption, "root", 0);
s = findScreenAtDisplay (d, xid);
if (s)
{
float w, h, x0, y0;
int output;
ZoomBox box;
ZOOM_SCREEN (s);
output = outputDeviceForPoint (s, pointerX, pointerY);
if (!zs->grabIndex)
zs->grabIndex = pushScreenGrab (s, None, "zoom");
if (zs->zoomed & (1 << output))
{
zoomGetCurrentZoom (s, output, &box);
}
else
{
box.x1 = s->outputDev[output].region.extents.x1;
box.y1 = s->outputDev[output].region.extents.y1;
box.x2 = s->outputDev[output].region.extents.x2;
box.y2 = s->outputDev[output].region.extents.y2;
}
w = (box.x2 - box.x1) /
zs->opt[ZOOM_SCREEN_OPTION_ZOOM_FACTOR].value.f;
h = (box.y2 - box.y1) /
zs->opt[ZOOM_SCREEN_OPTION_ZOOM_FACTOR].value.f;
x0 = (pointerX - s->outputDev[output].region.extents.x1) / (float)
s->outputDev[output].width;
y0 = (pointerY - s->outputDev[output].region.extents.y1) / (float)
s->outputDev[output].height;
zs->x1 = box.x1 + (x0 * (box.x2 - box.x1) - x0 * w + 0.5f);
zs->y1 = box.y1 + (y0 * (box.y2 - box.y1) - y0 * h + 0.5f);
zs->x2 = zs->x1 + w;
zs->y2 = zs->y1 + h;
zoomInitiateForSelection (s, output);
return TRUE;
}
return FALSE;
}
static Bool
zoomInitiate (CompDisplay *d,
CompAction *action,
CompActionState state,
CompOption *option,
int nOption)
{
CompScreen *s;
Window xid;
xid = getIntOptionNamed (option, nOption, "root", 0);
s = findScreenAtDisplay (d, xid);
if (s)
{
int output, x1, y1;
float scale;
ZOOM_SCREEN (s);
if (otherScreenGrabExist (s, "zoom", NULL))
return FALSE;
if (!zs->grabIndex)
zs->grabIndex = pushScreenGrab (s, None, "zoom");
if (state & CompActionStateInitButton)
action->state |= CompActionStateTermButton;
/* start selection zoom rectangle */
output = outputDeviceForPoint (s, pointerX, pointerY);
if (zs->zoomed & (1 << output))
{
ZoomBox box;
float oWidth;
zoomGetCurrentZoom (s, output, &box);
oWidth = s->outputDev[output].width;
scale = oWidth / (box.x2 - box.x1);
x1 = box.x1;
y1 = box.y1;
}
else
{
scale = 1.0f;
x1 = s->outputDev[output].region.extents.x1;
y1 = s->outputDev[output].region.extents.y1;
}
zs->x1 = zs->x2 = x1 +
((pointerX - s->outputDev[output].region.extents.x1) /
scale + 0.5f);
zs->y1 = zs->y2 = y1 +
((pointerY - s->outputDev[output].region.extents.y1) /
scale + 0.5f);
zs->zoomOutput = output;
zs->grab = TRUE;
damageScreen (s);
return TRUE;
}
return FALSE;
}
static Bool
zoomOut (CompDisplay *d,
CompAction *action,
CompActionState state,
CompOption *option,
int nOption)
{
CompScreen *s;
Window xid;
xid = getIntOptionNamed (option, nOption, "root", 0);
s = findScreenAtDisplay (d, xid);
if (s)
{
int output;
ZOOM_SCREEN (s);
output = outputDeviceForPoint (s, pointerX, pointerY);
zoomGetCurrentZoom (s, output, &zs->last[output]);
zs->current[output].x1 = s->outputDev[output].region.extents.x1;
zs->current[output].y1 = s->outputDev[output].region.extents.y1;
zs->current[output].x2 = s->outputDev[output].region.extents.x2;
zs->current[output].y2 = s->outputDev[output].region.extents.y2;
zs->zoomOutput = output;
zs->scale = 0.0f;
zs->adjust = TRUE;
zs->grab = FALSE;
if (zs->grabIndex)
{
removeScreenGrab (s, zs->grabIndex, NULL);
zs->grabIndex = 0;
}
damageScreen (s);
return TRUE;
}
return FALSE;
}
static Bool
zoomTerminate (CompDisplay *d,
CompAction *action,
CompActionState state,
CompOption *option,
int nOption)
{
CompScreen *s;
Window xid;
xid = getIntOptionNamed (option, nOption, "root", 0);
for (s = d->screens; s; s = s->next)
{
ZOOM_SCREEN (s);
if (xid && s->root != xid)
continue;
if (zs->grab)
{
int output;
output = outputDeviceForPoint (s, zs->x1, zs->y1);
if (zs->x2 > s->outputDev[output].region.extents.x2)
zs->x2 = s->outputDev[output].region.extents.x2;
if (zs->y2 > s->outputDev[output].region.extents.y2)
zs->y2 = s->outputDev[output].region.extents.y2;
zoomInitiateForSelection (s, output);
zs->grab = FALSE;
}
else
{
CompOption o;
o.type = CompOptionTypeInt;
o.name = "root";
o.value.i = s->root;
zoomOut (d, action, state, &o, 1);
}
}
action->state &= ~(CompActionStateTermKey | CompActionStateTermButton);
return FALSE;
}
static Bool
zoomInitiatePan (CompDisplay *d,
CompAction *action,
CompActionState state,
CompOption *option,
int nOption)
{
CompScreen *s;
Window xid;
xid = getIntOptionNamed (option, nOption, "root", 0);
s = findScreenAtDisplay (d, xid);
if (s)
{
int output;
ZOOM_SCREEN (s);
output = outputDeviceForPoint (s, pointerX, pointerY);
if (!(zs->zoomed & (1 << output)))
return FALSE;
if (otherScreenGrabExist (s, "zoom", NULL))
return FALSE;
if (state & CompActionStateInitButton)
action->state |= CompActionStateTermButton;
if (!zs->panGrabIndex)
zs->panGrabIndex = pushScreenGrab (s, zs->panCursor, "zoom-pan");
zs->zoomOutput = output;
return TRUE;
}
return FALSE;
}
static Bool
zoomTerminatePan (CompDisplay *d,
CompAction *action,
CompActionState state,
CompOption *option,
int nOption)
{
CompScreen *s;
Window xid;
xid = getIntOptionNamed (option, nOption, "root", 0);
for (s = d->screens; s; s = s->next)
{
ZOOM_SCREEN (s);
if (xid && s->root != xid)
continue;
if (zs->panGrabIndex)
{
removeScreenGrab (s, zs->panGrabIndex, NULL);
zs->panGrabIndex = 0;
zoomInEvent (s);
}
return TRUE;
}
action->state &= ~(CompActionStateTermKey | CompActionStateTermButton);
return FALSE;
}
static void
zoomHandleMotionEvent (CompScreen *s,
int xRoot,
int yRoot)
{
ZOOM_SCREEN (s);
if (zs->grabIndex)
{
int output = zs->zoomOutput;
ZoomBox box;
float scale, oWidth = s->outputDev[output].width;
zoomGetCurrentZoom (s, output, &box);
if (zs->zoomed & (1 << output))
scale = oWidth / (box.x2 - box.x1);
else
scale = 1.0f;
if (zs->panGrabIndex)
{
float dx, dy;
dx = (xRoot - lastPointerX) / scale;
dy = (yRoot - lastPointerY) / scale;
box.x1 -= dx;
box.y1 -= dy;
box.x2 -= dx;
box.y2 -= dy;
if (box.x1 < s->outputDev[output].region.extents.x1)
{
box.x2 += s->outputDev[output].region.extents.x1 - box.x1;
box.x1 = s->outputDev[output].region.extents.x1;
}
else if (box.x2 > s->outputDev[output].region.extents.x2)
{
box.x1 -= box.x2 - s->outputDev[output].region.extents.x2;
box.x2 = s->outputDev[output].region.extents.x2;
}
if (box.y1 < s->outputDev[output].region.extents.y1)
{
box.y2 += s->outputDev[output].region.extents.y1 - box.y1;
box.y1 = s->outputDev[output].region.extents.y1;
}
else if (box.y2 > s->outputDev[output].region.extents.y2)
{
box.y1 -= box.y2 - s->outputDev[output].region.extents.y2;
box.y2 = s->outputDev[output].region.extents.y2;
}
zs->current[output] = box;
damageScreen (s);
}
else
{
int x1, y1;
if (zs->zoomed & (1 << output))
{
x1 = box.x1;
y1 = box.y1;
}
else
{
x1 = s->outputDev[output].region.extents.x1;
y1 = s->outputDev[output].region.extents.y1;
}
zs->x2 = x1 +
((xRoot - s->outputDev[output].region.extents.x1) /
scale + 0.5f);
zs->y2 = y1 +
((yRoot - s->outputDev[output].region.extents.y1) /
scale + 0.5f);
damageScreen (s);
}
}
}
static void
zoomHandleEvent (CompDisplay *d,
XEvent *event)
{
CompScreen *s;
ZOOM_DISPLAY (d);
switch (event->type) {
case MotionNotify:
s = findScreenAtDisplay (d, event->xmotion.root);
if (s)
zoomHandleMotionEvent (s, pointerX, pointerY);
break;
case EnterNotify:
case LeaveNotify:
s = findScreenAtDisplay (d, event->xcrossing.root);
if (s)
zoomHandleMotionEvent (s, pointerX, pointerY);
default:
break;
}
UNWRAP (zd, d, handleEvent);
(*d->handleEvent) (d, event);
WRAP (zd, d, handleEvent, zoomHandleEvent);
}
static CompOption *
zoomGetDisplayOptions (CompPlugin *plugin,
CompDisplay *display,
int *count)
{
ZOOM_DISPLAY (display);
*count = NUM_OPTIONS (zd);
return zd->opt;
}
static Bool
zoomSetDisplayOption (CompPlugin *plugin,
CompDisplay *display,
const char *name,
CompOptionValue *value)
{
CompOption *o;
int index;
ZOOM_DISPLAY (display);
o = compFindOption (zd->opt, NUM_OPTIONS (zd), name, &index);
if (!o)
return FALSE;
switch (index) {
case ZOOM_DISPLAY_OPTION_OUT_BUTTON:
if (compSetActionOption (o, value))
return TRUE;
break;
default:
return compSetDisplayOption (display, o, value);
}
return FALSE;
}
static const CompMetadataOptionInfo zoomDisplayOptionInfo[] = {
{ "initiate_button", "button", 0, zoomInitiate, zoomTerminate },
{ "zoom_in_button", "button", 0, zoomIn, 0 },
{ "zoom_out_button", "button", 0, zoomOut, 0 },
{ "zoom_pan_button", "button", 0, zoomInitiatePan, zoomTerminatePan }
};
static Bool
zoomInitDisplay (CompPlugin *p,
CompDisplay *d)
{
ZoomDisplay *zd;
if (!checkPluginABI ("core", CORE_ABIVERSION))
return FALSE;
zd = malloc (sizeof (ZoomDisplay));
if (!zd)
return FALSE;
if (!compInitDisplayOptionsFromMetadata (d,
&zoomMetadata,
zoomDisplayOptionInfo,
zd->opt,
ZOOM_DISPLAY_OPTION_NUM))
{
free (zd);
return FALSE;
}
zd->screenPrivateIndex = allocateScreenPrivateIndex (d);
if (zd->screenPrivateIndex < 0)
{
compFiniDisplayOptions (d, zd->opt, ZOOM_DISPLAY_OPTION_NUM);
free (zd);
return FALSE;
}
WRAP (zd, d, handleEvent, zoomHandleEvent);
d->base.privates[displayPrivateIndex].ptr = zd;
return TRUE;
}
static void
zoomFiniDisplay (CompPlugin *p,
CompDisplay *d)
{
ZOOM_DISPLAY (d);
freeScreenPrivateIndex (d, zd->screenPrivateIndex);
UNWRAP (zd, d, handleEvent);
compFiniDisplayOptions (d, zd->opt, ZOOM_DISPLAY_OPTION_NUM);
free (zd);
}
static const CompMetadataOptionInfo zoomScreenOptionInfo[] = {
{ "speed", "float", "<min>0.1</min>", 0, 0 },
{ "timestep", "float", "<min>0.1</min>", 0, 0 },
{ "zoom_factor", "float", "<min>1.01</min>", 0, 0 },
{ "filter_linear", "bool", 0, 0, 0 }
};
static Bool
zoomInitScreen (CompPlugin *p,
CompScreen *s)
{
ZoomScreen *zs;
ZOOM_DISPLAY (s->display);
zs = malloc (sizeof (ZoomScreen));
if (!zs)
return FALSE;
if (!compInitScreenOptionsFromMetadata (s,
&zoomMetadata,
zoomScreenOptionInfo,
zs->opt,
ZOOM_SCREEN_OPTION_NUM))
{
free (zs);
return FALSE;
}
zs->grabIndex = 0;
zs->grab = FALSE;
zs->velocity = 0.0f;
zs->zoomOutput = 0;
zs->zoomed = 0;
zs->adjust = FALSE;
zs->panGrabIndex = 0;
zs->panCursor = XCreateFontCursor (s->display->display, XC_fleur);
zs->scale = 0.0f;
memset (&zs->current, 0, sizeof (zs->current));
memset (&zs->last, 0, sizeof (zs->last));
WRAP (zs, s, preparePaintScreen, zoomPreparePaintScreen);
WRAP (zs, s, donePaintScreen, zoomDonePaintScreen);
WRAP (zs, s, paintOutput, zoomPaintOutput);
s->base.privates[zd->screenPrivateIndex].ptr = zs;
return TRUE;
}
static void
zoomFiniScreen (CompPlugin *p,
CompScreen *s)
{
ZOOM_SCREEN (s);
if (zs->panCursor)
XFreeCursor (s->display->display, zs->panCursor);
UNWRAP (zs, s, preparePaintScreen);
UNWRAP (zs, s, donePaintScreen);
UNWRAP (zs, s, paintOutput);
compFiniScreenOptions (s, zs->opt, ZOOM_SCREEN_OPTION_NUM);
free (zs);
}
static CompBool
zoomInitObject (CompPlugin *p,
CompObject *o)
{
static InitPluginObjectProc dispTab[] = {
(InitPluginObjectProc) 0, /* InitCore */
(InitPluginObjectProc) zoomInitDisplay,
(InitPluginObjectProc) zoomInitScreen
};
RETURN_DISPATCH (o, dispTab, ARRAY_SIZE (dispTab), TRUE, (p, o));
}
static void
zoomFiniObject (CompPlugin *p,
CompObject *o)
{
static FiniPluginObjectProc dispTab[] = {
(FiniPluginObjectProc) 0, /* FiniCore */
(FiniPluginObjectProc) zoomFiniDisplay,
(FiniPluginObjectProc) zoomFiniScreen
};
DISPATCH (o, dispTab, ARRAY_SIZE (dispTab), (p, o));
}
static CompOption *
zoomGetObjectOptions (CompPlugin *plugin,
CompObject *object,
int *count)
{
static GetPluginObjectOptionsProc dispTab[] = {
(GetPluginObjectOptionsProc) 0, /* GetCoreOptions */
(GetPluginObjectOptionsProc) zoomGetDisplayOptions,
(GetPluginObjectOptionsProc) zoomGetScreenOptions
};
*count = 0;
RETURN_DISPATCH (object, dispTab, ARRAY_SIZE (dispTab),
(void *) count, (plugin, object, count));
}
static CompBool
zoomSetObjectOption (CompPlugin *plugin,
CompObject *object,
const char *name,
CompOptionValue *value)
{
static SetPluginObjectOptionProc dispTab[] = {
(SetPluginObjectOptionProc) 0, /* SetCoreOption */
(SetPluginObjectOptionProc) zoomSetDisplayOption,
(SetPluginObjectOptionProc) zoomSetScreenOption
};
RETURN_DISPATCH (object, dispTab, ARRAY_SIZE (dispTab), FALSE,
(plugin, object, name, value));
}
static Bool
zoomInit (CompPlugin *p)
{
if (!compInitPluginMetadataFromInfo (&zoomMetadata,
p->vTable->name,
zoomDisplayOptionInfo,
ZOOM_DISPLAY_OPTION_NUM,
zoomScreenOptionInfo,
ZOOM_SCREEN_OPTION_NUM))
return FALSE;
displayPrivateIndex = allocateDisplayPrivateIndex ();
if (displayPrivateIndex < 0)
{
compFiniMetadata (&zoomMetadata);
return FALSE;
}
compAddMetadataFromFile (&zoomMetadata, p->vTable->name);
return TRUE;
}
static void
zoomFini (CompPlugin *p)
{
freeDisplayPrivateIndex (displayPrivateIndex);
compFiniMetadata (&zoomMetadata);
}
static CompMetadata *
zoomGetMetadata (CompPlugin *plugin)
{
return &zoomMetadata;
}
CompPluginVTable zoomVTable = {
"zoom",
zoomGetMetadata,
zoomInit,
zoomFini,
zoomInitObject,
zoomFiniObject,
zoomGetObjectOptions,
zoomSetObjectOption
};
CompPluginVTable *
getCompPluginInfo20070830 (void)
{
return &zoomVTable;
}