fix file manager thumbnail view with high dpi

apps/file_manager/ui.cpp

@@ -690,7 +690,7 @@ int ListItemMessage(EsElement *element, EsMessage *message) {
 			if (thumbnail && thumbnail->bits) {
 				EsRectangle destination = EsPainterBoundsClient(message->painter);
 				EsRectangle source = ES_RECT_2S(thumbnail->width, thumbnail->height);
-				destination = EsRectangleFit(destination, source, false);
+				destination = EsRectangleFit(destination, source, true /* allow scaling up */);
 				// EsDrawBlock(message->painter, EsRectangleAdd(destination, ES_RECT_1(2)), 0x20000000);
 				EsDrawBitmapScaled(message->painter, destination, source, thumbnail->bits, thumbnail->width * 4, 0xFF);
 				return ES_HANDLED;

desktop/text.cpp

@@ -1124,6 +1124,7 @@ IconPackImage *IconPackReadImage(uint32_t id, uint32_t size, int *type) {
 	uint32_t variant = 0;
 
 	while (true) {
+		// Look for a perfect match of size and direction.
 		variant = EsBufferReadInt(&iconManagement.pack);
 		if (!variant) break;
 		if ((variant == size || variant == 1) && !rtl) { found = true; break; }
@@ -1131,6 +1132,7 @@ IconPackImage *IconPackReadImage(uint32_t id, uint32_t size, int *type) {
 	}
 
 	if (!found) {
+		// Look for the smallest bigger size.
 		iconManagement.pack.position = start;
 
 		while (true) {
@@ -1163,11 +1165,21 @@ IconPackImage *IconPackReadImage(uint32_t id, uint32_t size, int *type) {
 		}
 	}
 
-	// skipSizeSearch:;
-
 	if (!found) {
+		// Look for the biggest size.
 		iconManagement.pack.position = start;
-		EsBufferReadInt(&iconManagement.pack);
+		uintptr_t previous = 0;
+
+		while (true) {
+			if (!EsBufferReadInt(&iconManagement.pack) && previous) { 
+				iconManagement.pack.position = previous; 
+				found = true; 
+				break; 
+			}
+
+			previous = iconManagement.pack.position;
+			iconManagement.pack.position = EsBufferReadInt(&iconManagement.pack);
+		}
 	}
 
 	EsBufferReadInt(&iconManagement.pack);

desktop/theme.cpp

@@ -203,7 +203,8 @@ typedef struct ThemeMetrics {
 	int16_t maximumWidth, maximumHeight;
 	int16_t gapMajor, gapMinor, gapWrap;
 	uint32_t textColor, selectedBackground, selectedText, iconColor;
-	int8_t textAlign, textSize, fontWeight, iconSize;
+	int8_t textAlign, fontWeight;
+	int16_t textSize, iconSize;
 	bool isItalic, ellipsis, layoutVertical;
 } ThemeMetrics;
 
@@ -1255,7 +1256,8 @@ struct UIStyle {
 
 	// General information.
 
-	uint8_t textSize, textAlign;
+	uint8_t textAlign;
+	uint16_t textSize;
 	uint32_t textColor;
 	EsFont font;
 
@@ -1874,14 +1876,6 @@ UIStyle *ThemeStyleInitialise(UIStyleKey key) {
 
 	// Apply scaling to the metrics.
 
-	int8_t *scale8[] = {
-		&style->metrics->textSize, &style->metrics->iconSize,
-	};
-
-	for (uintptr_t i = 0; i < sizeof(scale8) / sizeof(scale8[0]); i++) {
-		*(scale8[i]) = *(scale8[i]) * key.scale;
-	}
-
 	int16_t *scale16[] = {
 		&style->metrics->insets.l, &style->metrics->insets.r, &style->metrics->insets.t, &style->metrics->insets.b,
 		&style->metrics->clipInsets.l, &style->metrics->clipInsets.r, &style->metrics->clipInsets.t, &style->metrics->clipInsets.b,
@@ -1890,6 +1884,7 @@ UIStyle *ThemeStyleInitialise(UIStyleKey key) {
 		&style->metrics->preferredWidth, &style->metrics->preferredHeight,
 		&style->metrics->minimumWidth, &style->metrics->minimumHeight,
 		&style->metrics->maximumWidth, &style->metrics->maximumHeight,
+		&style->metrics->textSize, &style->metrics->iconSize,
 	};
 
 	for (uintptr_t i = 0; i < sizeof(scale16) / sizeof(scale16[0]); i++) {