From e35a90b4f45a94ab5ddf7bc9660cab451fe1a7b3 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sat, 11 May 2024 19:53:35 -0400
Subject: (mapman) Export images.

---
 mapman/src/utils.cpp | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

(limited to 'mapman/src/utils.cpp')

diff --git a/mapman/src/utils.cpp b/mapman/src/utils.cpp
index e6f658c..06b0eb4 100644
--- a/mapman/src/utils.cpp
+++ b/mapman/src/utils.cpp
@@ -1,7 +1,10 @@
 #include "utils.hpp"
+#include "library.hpp"
+#include "mapdump.hpp"
 
 #include <QColor>
 #include <QImage>
+#include <QPainter>
 
 rgb_t modify_color(rgb_t c, uint8_t variant)
 {
@@ -21,7 +24,7 @@ rgb_t modify_color(rgb_t c, uint8_t variant)
 
 QColor rgb2qcolor(rgb_t c) {return QColor(c.r, c.g, c.b);}
 
-QPixmap pixmap_of_map_data(const std::array<uint8_t, 128 * 128> &map_data, double scaling)
+QPixmap pixmap_of_map_data(const map_data_t &map_data, double scaling)
 {
     QImage ret(128, 128, QImage::Format_ARGB32);
     ret.setDevicePixelRatio(scaling);
@@ -39,3 +42,18 @@ QPixmap pixmap_of_map_data(const std::array<uint8_t, 128 * 128> &map_data, doubl
     return QPixmap::fromImage(ret);
 }
 
+QImage image_of_map_group(const map_library *library, const map_group_t &group, double scaling)
+{
+    QImage ret(group.hc * 128, group.vc * 128, QImage::Format_ARGB32);
+    ret.fill(0);
+    ret.setDevicePixelRatio(1.);
+    {
+        QPainter p(&ret);
+        for (int i = 0 ; i < group.vc; ++i)
+            for (int j = 0 ; j < group.hc; ++j)
+                if (group.populated[i * group.hc + j])
+                    p.drawPixmap(128 * j, 128 * i, pixmap_of_map_data(library->get_map(group.ids[i * group.hc + j]).map_data, 1.));
+    }
+    ret.setDevicePixelRatio(scaling);
+    return ret;
+}
-- 
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