Initial revision

git-svn-id: file:///fltk/svn/fltk/trunk@2 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 62 insertions, 0 deletions

diff --git a/src/Fl_Image.cxx b/src/Fl_Image.cxx
new file mode 100644
index 000000000..1aac860d4
--- /dev/null
+++ b/src/Fl_Image.cxx
@@ -0,0 +1,62 @@
+// Fl_Image.C
+
+// Draw a image in a box.
+
+#include <FL/Fl.H>
+#include <FL/fl_draw.H>
+#include <FL/x.H>
+#include <FL/Fl_Widget.H>
+#include <FL/Fl_Menu_Item.H>
+#include <FL/Fl_Image.H>
+
+void Fl_Image::draw(int X, int Y, int W, int H, int cx,int cy) {
+  // clip the box down to the size of image, quit if empty:
+  if (cx < 0) {W += cx; X -= cx; cx = 0;}
+  if (cx+W > w) W = w-cx;
+  if (W <= 0) return;
+  if (cy < 0) {H += cy; Y -= cy; cy = 0;}
+  if (cy+H > h) H = h-cy;
+  if (H <= 0) return;
+  if (!id) {
+    id = (ulong)fl_create_offscreen(w, h);
+    fl_begin_offscreen((Fl_Offscreen)id);
+    fl_draw_image(array, 0, 0, w, h, d, ld);
+    fl_end_offscreen();
+  }
+  fl_copy_offscreen(X, Y, W, H, (Fl_Offscreen)id, cx, cy);
+}
+
+Fl_Image::~Fl_Image() {
+  if (id) fl_delete_offscreen((Fl_Offscreen)id);
+}
+
+static void image_labeltype(
+    const Fl_Label* o, int x, int y, int w, int h, Fl_Align a)
+{
+  Fl_Image* b = (Fl_Image*)(o->value);
+  int cx;
+  if (a & FL_ALIGN_LEFT) cx = 0;
+  else if (a & FL_ALIGN_RIGHT) cx = b->w-w;
+  else cx = (b->w-w)/2;
+  int cy;
+  if (a & FL_ALIGN_TOP) cy = 0;
+  else if (a & FL_ALIGN_BOTTOM) cy = b->h-h;
+  else cy = (b->h-h)/2;
+  b->draw(x,y,w,h,cx,cy);
+}
+
+static void image_measure(const Fl_Label* o, int& w, int& h) {
+  Fl_Image* b = (Fl_Image*)(o->value);
+  w = b->w;
+  h = b->h;
+}
+
+void Fl_Image::label(Fl_Widget* o) {
+  Fl::set_labeltype(_FL_IMAGE_LABEL, image_labeltype, image_measure);
+  o->label(_FL_IMAGE_LABEL, (const char*)this);
+}
+
+void Fl_Image::label(Fl_Menu_Item* o) {
+  Fl::set_labeltype(_FL_IMAGE_LABEL, image_labeltype, image_measure);
+  o->label(_FL_IMAGE_LABEL, (const char*)this);
+}