8 files changed, 133 insertions, 0 deletions

diff --git a/src/model/data/base.h b/src/model/data/base.h
new file mode 100644
index 0000000..5b7bd0b
--- a/dev/null
+++ b/src/model/data/base.h
@@ -0,0 +1,9 @@
+#ifndef BASE_H
+#define BASE_H
+
+/*
+ * Build the base layer of the map.
+ */
+void base (void);
+
+#endif // BASE_H
diff --git a/src/model/data/coordinates.h b/src/model/data/coordinates.h
new file mode 100644
index 0000000..7620904
--- a/dev/null
+++ b/src/model/data/coordinates.h
@@ -0,0 +1,11 @@
+struct
+{
+  sqlint32 coord_id;
+  struct
+  {
+    short length;
+    char data[50];
+  } gi;
+  double x;
+  double y;
+} coordinates;
diff --git a/src/model/state/pan_info.h b/src/model/state/pan_info.h
new file mode 100644
index 0000000..9813ac9
--- a/dev/null
+++ b/src/model/state/pan_info.h
@@ -0,0 +1,24 @@
+#ifndef PAN_INFO_H
+#define PAN_INFO_H
+
+#include <stdbool.h>
+
+typedef struct
+{
+  /*
+   * A panning operation has begun.
+   */
+  bool active;
+
+  /*
+   * Coordinates of mouse when the pan operation is begun.
+   */
+  int begin[2];
+
+  /*
+   * Translation
+   */
+  float trans[2];
+} PAN_INFO;
+
+#endif // PAN_INFO_H
diff --git a/src/model/state/pan_info_init.c b/src/model/state/pan_info_init.c
new file mode 100644
index 0000000..aa2c869
--- a/dev/null
+++ b/src/model/state/pan_info_init.c
@@ -0,0 +1,13 @@
+#include "pan_info_init.h"
+
+void
+pan_info_init (PAN_INFO * p)
+{
+  p->active = false;
+  p->begin[0] = 0;
+  p->begin[1] = 0;
+  p->trans[0] = 0.0;
+  p->trans[1] = 0.0;
+
+  return;
+}
diff --git a/src/model/state/selection_info.h b/src/model/state/selection_info.h
new file mode 100644
index 0000000..73a1c34
--- a/dev/null
+++ b/src/model/state/selection_info.h
@@ -0,0 +1,37 @@
+#ifndef SELECTION_INFO_H
+#define SELECTION_INFO_H
+
+#include "selection_purposes.h"
+#include <stdbool.h>
+
+typedef struct
+{
+
+  /*
+   * Selection list.
+   */
+  bool *set;
+
+  /*
+   * A selection is being performed.
+   */
+  bool active;
+
+  /*
+   * Indicate if the user is currently defining a selection.
+   */
+  SELECTION_PURPOSES purpose;
+
+  /*
+   * X coordinate of mouse when selection mode initiated.
+   */
+  int x;
+
+  /*
+   * Y coordinate of mouse when selection mode initiated.
+   */
+  int y;
+
+} SELECTION_INFO;
+
+#endif // SELECTION_INFO_H
diff --git a/src/model/state/selection_info_init.c b/src/model/state/selection_info_init.c
new file mode 100644
index 0000000..40d00aa
--- a/dev/null
+++ b/src/model/state/selection_info_init.c
@@ -0,0 +1,14 @@
+#include "selection_info_init.h"
+#include <string.h>
+
+void
+selection_info_init (SELECTION_INFO * s)
+{
+  s->set = NULL;
+  s->active = false;
+  s->purpose = SET;
+  s->x = 0;
+  s->y = 0;
+
+  return;
+}
diff --git a/src/model/state/selection_info_init.h b/src/model/state/selection_info_init.h
new file mode 100644
index 0000000..d38b851
--- a/dev/null
+++ b/src/model/state/selection_info_init.h
@@ -0,0 +1,8 @@
+#ifndef SELECTION_INFO_INIT_H
+#define SELECTION_INFO_INIT_H
+
+#include "selection_info.h"
+
+void selection_info_init (SELECTION_INFO * s);
+
+#endif // SELECTION_INFO_INIT_H
diff --git a/src/model/state/selection_purposes.h b/src/model/state/selection_purposes.h
new file mode 100644
index 0000000..6c2e651
--- a/dev/null
+++ b/src/model/state/selection_purposes.h
@@ -0,0 +1,17 @@
+#ifndef SELECTION_PURPOSES_H
+#define SELECTION_PURPOSES_H
+
+typedef enum
+{
+  /*
+   * The selection will define a new set.
+   */
+  SET,
+
+  /*
+   * The selection will define a zoom region.
+   */
+  ZOOM
+} SELECTION_PURPOSES;
+
+#endif // SELECTION_PURPOSES_H