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Scaling factor fix #8

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Merged
markdstjohn merged 2 commits into from
Jun 19, 2020
Merged

Scaling factor fix #8

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5b5ebeb
Merge pull request #1 from markdstjohn/master
dkondor May 14, 2020
7287587
simple hack to render strokes better with display scaling
dkondor Jun 19, 2020
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11 changes: 11 additions & 0 deletions composite.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,8 @@
#include "composite.h"
#include <gdkmm.h>
#include <glibmm/i18n.h>
#include <gdk/gdk.h>


double red, green, blue, alpha, width;
std::list<Trace::Point> points;
Expand Down Expand Up @@ -49,6 +51,9 @@ Composite::Composite() {
#define N 128
int w = gdk_screen_width();
int h = gdk_screen_height();
GdkDisplay* dp = gdk_display_get_default();
GdkMonitor* mon = gdk_display_get_primary_monitor(dp);
scale_factor = gdk_monitor_get_scale_factor(mon);
num_x = (gdk_screen_width() - 1)/N + 1;
num_y = (gdk_screen_height() - 1)/N + 1;
pieces = new Popup**[num_x];
Expand All @@ -61,6 +66,12 @@ Composite::Composite() {
}

void Composite::draw(Point p, Point q) {
if(scale_factor > 0) {
p.x /= scale_factor;
p.y /= scale_factor;
q.x /= scale_factor;
q.y /= scale_factor;
}
if (!points.size()) {
points.push_back(p);
}
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1 change: 1 addition & 0 deletions composite.h
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Expand Up @@ -31,6 +31,7 @@ class Popup : public Gtk::Window {

class Composite : public Trace {
int num_x, num_y;
int scale_factor;
Popup ***pieces;
virtual void draw(Point p, Point q);
virtual void start_();
Expand Down