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Issue 795: zoom to center

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This commit is contained in:
torger
2013-11-19 07:30:00 +01:00
parent 5bd883c56b
commit 047fd34e4e
2 changed files with 56 additions and 4 deletions
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59
rtgui/cropwindow.cc Normal file → Executable file
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@@ -75,6 +75,7 @@ CropWindow::CropWindow (ImageArea* parent, rtengine::StagedImageProcessor* ipc_,
context->set_font_description (fontd);
cropLabel = "100%";
Glib::RefPtr<Pango::Layout> cllayout = parent->create_pango_layout("1000%");
exposeVersion = zoomVersion = 0;
int iw, ih;
cllayout->get_pixel_size (iw, ih);
@@ -803,6 +804,7 @@ void CropWindow::expose (Cairo::RefPtr<Cairo::Context> cr) {
imgH = cropHandler.cropPixbuf->get_height ();
imgX = imgAreaX + (imgAreaW-imgW)/2;
imgY = imgAreaY + (imgAreaH-imgH)/2;
exposeVersion++;
// PERFORMANCE BOTTLENECK STARTS HERE
//t3.set ();
bool showcs = iarea->indClippedPanel->showClippedShadows();
@@ -1060,7 +1062,6 @@ void CropWindow::expose (Cairo::RefPtr<Cairo::Context> cr) {
drawSpotWBRectangle (cr);
//t2.set ();
// printf ("etime --> %d, %d\n", t2.etime (t1), t4.etime (t3));
}
@@ -1092,10 +1093,44 @@ void CropWindow::zoomIn (bool toCursor, int cursorX, int cursorY) {
if (toCursor) {
x = cursorX;
y = cursorY;
} else {
if (zoomSteps[cropZoom].zoom <= cropHandler.getFitZoom()) {
if (cropHandler.cropParams.enabled) {
x = cropHandler.cropParams.x + cropHandler.cropParams.w / 2;
y = cropHandler.cropParams.y + cropHandler.cropParams.h / 2;
} else {
int fw, fh;
cropHandler.getFullImageSize(fw, fh);
x = fw / 2;
y = fh / 2;
}
zoomVersion = exposeVersion;
} else if (zoomVersion != exposeVersion) {
translateCoord(xpos+imgX+imgW/2, ypos+imgY+imgH/2, x, y);
if (cropHandler.cropParams.enabled) {
// add some gravity towards crop center
int x1 = cropHandler.cropParams.x + cropHandler.cropParams.w / 2;
int y1 = cropHandler.cropParams.y + cropHandler.cropParams.h / 2;
double cropd = sqrt(cropHandler.cropParams.h*cropHandler.cropParams.h+cropHandler.cropParams.w*cropHandler.cropParams.w) * zoomSteps[cropZoom].zoom;
double imd = sqrt(imgW*imgW+imgH+imgH);
double d;
// the more we can see of the crop, the more gravity towards crop center
if (cropd > imd) {
d = 0.8;
} else if (cropd < imd * 0.5) {
d = 0.0;
} else {
d = 1.6 * (cropd - imd * 0.5) / imd;
}
x = d * x + (1.0 - d) * x1;
y = d * y + (1.0 - d) * y1;
}
zoomVersion = exposeVersion;
}
}
changeZoom (cropZoom+1, true, x, y);
fitZoom = false;
changeZoom (cropZoom+1, true, x, y);
fitZoom = false;
}
void CropWindow::zoomOut (bool toCursor, int cursorX, int cursorY) {
@@ -1108,13 +1143,28 @@ void CropWindow::zoomOut (bool toCursor, int cursorX, int cursorY) {
y = cursorY;
}
zoomVersion = exposeVersion;
changeZoom (cropZoom-1, true, x, y);
fitZoom = false;
}
void CropWindow::zoom11 () {
changeZoom (ZOOM11INDEX);
int x = -1;
int y = -1;
if (zoomSteps[cropZoom].zoom <= cropHandler.getFitZoom()) {
if (cropHandler.cropParams.enabled) {
x = cropHandler.cropParams.x + cropHandler.cropParams.w / 2;
y = cropHandler.cropParams.y + cropHandler.cropParams.h / 2;
} else {
int fw, fh;
cropHandler.getFullImageSize(fw, fh);
x = fw/2;
y = fh/2;
}
zoomVersion = exposeVersion;
}
changeZoom (ZOOM11INDEX, true, x, y);
fitZoom = false;
}
@@ -1156,6 +1206,7 @@ void CropWindow::zoomFit () {
cz = i;
break;
}
zoomVersion = exposeVersion;
changeZoom (cz);
fitZoom = true;
}

1
rtgui/cropwindow.h Normal file → Executable file
View File

@@ -74,6 +74,7 @@ class CropWindow : public LWButtonListener, public CropHandlerListener {
ImageArea* iarea;
int cropZoom; // *1000
unsigned int zoomVersion, exposeVersion;
// crop gui listener
CropGUIListener* cropgl;