1 files changed, 54 insertions, 0 deletions
diff --git a/backend/impress/render.c b/backend/impress/render.c
new file mode 100644
index 00000000..67b80756
--- /dev/null
+++ b/backend/impress/render.c
@@ -0,0 +1,54 @@
+/* imposter (OO.org Impress viewer)
+** Copyright (C) 2003-2005 Gurer Ozen
+** This code is free software; you can redistribute it and/or
+** modify it under the terms of GNU General Public License.
+*/
+
+#include <config.h>
+#include "common.h"
+#include "internal.h"
+
+ImpRenderCtx *
+imp_create_context(const ImpDrawer *drw)
+{
+	ImpRenderCtx *ctx;
+
+	ctx = calloc(1, sizeof(ImpRenderCtx));
+	if (!ctx) return NULL;
+	ctx->drw = drw;
+	return ctx;
+}
+
+void
+imp_context_set_page(ImpRenderCtx *ctx, ImpPage *page)
+{
+	ctx->page = page;
+	ctx->content = page->doc->content;
+	ctx->styles = page->doc->styles;
+}
+
+void
+imp_context_set_step(ImpRenderCtx *ctx, int step)
+{
+	ctx->step = step;
+}
+
+void
+imp_render(ImpRenderCtx *ctx, void *drw_data)
+{
+	// find drawing area size
+	ctx->drw->get_size(drw_data, &ctx->pix_w, &ctx->pix_h);
+	// find page size
+	ctx->page->doc->get_geometry(ctx);
+	// calculate ratio
+	ctx->fact_x = ctx->pix_w / ctx->cm_w;
+	ctx->fact_y = ctx->pix_h / ctx->cm_h;
+	// call renderer
+	ctx->page->doc->render_page(ctx, drw_data);
+}
+
+void
+imp_delete_context(ImpRenderCtx *ctx)
+{
+	free(ctx);
+}