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Thirdparty/Pangolin/include/pangolin/gl/glchar.h

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+/* This file is part of the Pangolin Project.
+ * http://github.com/stevenlovegrove/Pangolin
+ *
+ * Copyright (c) 2013 Steven Lovegrove
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <pangolin/gl/glplatform.h>
+#include <map>
+
+namespace pangolin {
+
+struct PANGOLIN_EXPORT XYUV
+{
+    XYUV() {}
+    XYUV(GLfloat x, GLfloat y, GLfloat tu, GLfloat tv)
+        : x(x), y(y), tu(tu), tv(tv) {}
+
+    XYUV operator+(float dx) const {
+        return XYUV(x+dx,y,tu,tv);
+    }
+    
+    GLfloat x, y, tu, tv;
+};
+
+class PANGOLIN_EXPORT GlChar
+{
+public:
+    GlChar();
+    GlChar(int tw, int th, int x, int y, int w, int h, GLfloat x_step, GLfloat ox, GLfloat oy);
+    
+    inline const XYUV& GetVert(size_t i) const {
+        return vs[i];
+    }    
+    
+    inline GLfloat StepX() const {
+        return x_step;
+    }
+
+    inline GLfloat YMin() const {
+        return y_min;
+    }
+
+    inline GLfloat YMax() const {
+        return y_max;
+    }
+
+    void Draw() const;
+        
+protected:
+    XYUV vs[4];
+    GLfloat x_step;
+    GLfloat y_min, y_max;
+};
+
+}