DragonX/SilentDragonXLite
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center qrcode

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This commit is contained in:
adityapk00
2018-10-30 21:42:24 -07:00
parent 0a8b3f61b3
commit 735f07bad1
1 changed files with 3 additions and 2 deletions
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5
src/qrcodelabel.cpp
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@@ -31,7 +31,8 @@ QPixmap QRCodeLabel::scaledPixmap() const {
const double aspect = w/h; const double aspect = w/h;
const double size = ((aspect>1.0)?h:w); const double size = ((aspect>1.0)?h:w);
const double scale = size/(s+2); const double scale = size/(s+2);
const double offset = (w - size) > 0 ? (w - size) / 2 : 0; const double woff = (w - size) > 0 ? (w - size) / 2 : 0;
const double hoff = (h - size) > 0 ? (h - size) / 2 : 0;
// NOTE: For performance reasons my implementation only draws the foreground parts // NOTE: For performance reasons my implementation only draws the foreground parts
painter.setPen(Qt::NoPen); painter.setPen(Qt::NoPen);
@@ -40,7 +41,7 @@ QPixmap QRCodeLabel::scaledPixmap() const {
for(int x=0; x<s; x++) { for(int x=0; x<s; x++) {
const int color=qr.getModule(x, y); // 0 for white, 1 for black const int color=qr.getModule(x, y); // 0 for white, 1 for black
if(0!=color) { if(0!=color) {
const double rx1=(x+1)*scale+ offset, ry1=(y+1)*scale; const double rx1=(x+1)*scale + woff, ry1=(y+1)*scale + hoff;
QRectF r(rx1, ry1, scale, scale); QRectF r(rx1, ry1, scale, scale);
painter.drawRects(&r,1); painter.drawRects(&r,1);
} }