From 92f17580846c88108aab023092c23e6bcdcf2f75 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Fri, 14 Aug 2015 23:45:02 +0800
Subject: SMELT is finally finished! Add the SMELT library for future use. Add
 .gitignore.

---
 smelt/sdl/CxImage/ximalyr.cpp | 116 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 smelt/sdl/CxImage/ximalyr.cpp

(limited to 'smelt/sdl/CxImage/ximalyr.cpp')

diff --git a/smelt/sdl/CxImage/ximalyr.cpp b/smelt/sdl/CxImage/ximalyr.cpp
new file mode 100644
index 0000000..23dc226
--- /dev/null
+++ b/smelt/sdl/CxImage/ximalyr.cpp
@@ -0,0 +1,116 @@
+// xImaLyr.cpp : Layers functions
+/* 21/04/2003 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_LAYERS
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * If the object is an internal layer, GetParent return its parent in the hierarchy.
+ */
+CxImage* CxImage::GetParent() const
+{
+	return info.pParent;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Number of layers allocated directly by the object.
+ */
+int32_t CxImage::GetNumLayers() const
+{
+	return info.nNumLayers;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Creates an empty layer. If position is less than 0, the new layer will be placed in the last position
+ */
+bool CxImage::LayerCreate(int32_t position)
+{
+	if ( position < 0 || position > info.nNumLayers ) position = info.nNumLayers;
+
+	CxImage** ptmp = new CxImage*[info.nNumLayers + 1];
+	if (ptmp==0) return false;
+
+	int32_t i=0;
+	for (int32_t n=0; n<info.nNumLayers; n++){
+		if (position == n){
+			ptmp[n] = new CxImage();
+			i=1;
+		}
+		ptmp[n+i]=ppLayers[n];
+	}
+	if (i==0) ptmp[info.nNumLayers] = new CxImage();
+
+	if (ptmp[position]){
+		ptmp[position]->info.pParent = this;
+	} else {
+		free(ptmp);
+		return false;
+	}
+
+	info.nNumLayers++;
+	delete [] ppLayers;
+	ppLayers = ptmp;
+	return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Deletes a layer. If position is less than 0, the last layer will be deleted
+ */
+bool CxImage::LayerDelete(int32_t position)
+{
+	if ( position >= info.nNumLayers ) return false;
+	if ( position < 0) position = info.nNumLayers - 1;
+	if ( position < 0) return false;
+
+	if (info.nNumLayers>1){
+
+		CxImage** ptmp = new CxImage*[info.nNumLayers - 1];
+		if (ptmp==0) return false;
+
+		int32_t i=0;
+		for (int32_t n=0; n<info.nNumLayers; n++){
+			if (position == n){
+				delete ppLayers[n];
+				i=1;
+			}
+			ptmp[n]=ppLayers[n+i];
+		}
+
+		info.nNumLayers--;
+		delete [] ppLayers;
+		ppLayers = ptmp;
+
+	} else {
+		delete ppLayers[0];
+		delete [] ppLayers;
+		ppLayers = 0;
+		info.nNumLayers = 0;
+	}
+	return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::LayerDeleteAll()
+{
+	if (ppLayers) { 
+		for(int32_t n=0; n<info.nNumLayers;n++){ delete ppLayers[n]; }
+		delete [] ppLayers; ppLayers=0; info.nNumLayers = 0;
+	}
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns a pointer to a layer. If position is less than 0, the last layer will be returned
+ */
+CxImage* CxImage::GetLayer(int32_t position)
+{
+	if ( ppLayers == NULL) return NULL;
+	if ( info.nNumLayers == 0) return NULL;
+	if ( position >= info.nNumLayers ) return NULL;
+	if ( position < 0) position = info.nNumLayers - 1;
+	return ppLayers[position];
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_LAYERS
-- 
cgit v1.2.3