Add an interface to scalable rendering with multiple resolutionguppy_6.90.0guppy/6.90.0flounder_5.99.6flounder_5.99.5flounder_5.99.4flounder_5.99.3flounder/5.99.6flounder/5.99.5flounder/5.99.4flounder/5.99.36.90.05.99.65.99.55.99.45.99.3

To support rendering which fits screen resolution,
new class AGLScreenInfo is introduced to get 'scale_factor'
from AGL HMI framework.

If AGL HMI framework doesn't support multi-resolution,
scale is set 1.0 for backward compatibility.

Bug-AGL: SPEC-1611

Change-Id: I1dc4dd13c17ae66a706b6fd8ef937fbaab937c9e
Signed-off-by: Tadao Tanikawa <tanikawa.tadao@jp.panasonic.com>

2 files changed, 72 insertions, 3 deletions

diff --git a/src/qlibwindowmanager.cpp b/src/qlibwindowmanager.cpp
index b264c94..df17f47 100644
--- a/src/qlibwindowmanager.cpp
+++ b/src/qlibwindowmanager.cpp
@@ -28,7 +28,37 @@ using namespace std;
 
 int QLibWindowmanager::init(int port, const QString &token) {
     string ctoken = token.toStdString();
-    return this->wm->init(port, ctoken.c_str());
+    int ret_init =  this->wm->init(port, ctoken.c_str());
+
+    // initialize dpyinfo
+    json_object *obj = json_object_new_object();
+
+    int ret = this->wm->getDisplayInfo(obj);
+
+    this->screen_info = new AGLScreenInfoPrivate;
+
+    if (!ret) {
+        json_object *j_val;
+        if (json_object_object_get_ex(obj, "width_pixel", &j_val)) {
+            this->screen_info->set_width_dp(json_object_get_double(j_val));
+        }
+        if (json_object_object_get_ex(obj, "height_pixel", &j_val)) {
+            this->screen_info->set_height_dp(json_object_get_double(j_val));
+        }
+        if (json_object_object_get_ex(obj, "width_mm", &j_val)) {
+            this->screen_info->set_width_mm(json_object_get_double(j_val));
+        }
+        if (json_object_object_get_ex(obj, "height_mm", &j_val)) {
+            this->screen_info->set_height_mm(json_object_get_double(j_val));
+        }
+        if (json_object_object_get_ex(obj, "scale", &j_val)) {
+            this->screen_info->set_scale_factor(json_object_get_double(j_val));
+        }
+    }
+
+    json_object_put(obj);
+
+    return ret_init;
 }
 
 int QLibWindowmanager::requestSurface(const QString &label) {
@@ -120,7 +150,7 @@ void QLibWindowmanager::slotActivateSurface(){
 }
 
 QLibWindowmanager::QLibWindowmanager(QObject *parent)
-    :QObject(parent), isActive(false)
+    :QObject(parent), isActive(false), screen_info(nullptr)
 {
     wm = new LibWindowmanager();
 }
diff --git a/src/qlibwindowmanager.h b/src/qlibwindowmanager.h
index 8fb653d..3a720a1 100644
--- a/src/qlibwindowmanager.h
+++ b/src/qlibwindowmanager.h
@@ -21,6 +21,42 @@
 #include <QObject>
 #include <string>
 
+class AGLScreenInfo : public QObject
+{
+    Q_OBJECT
+
+  public:
+    AGLScreenInfo(double scale = 1.0) { _scale_factor = scale; };
+
+    Q_INVOKABLE double scale_factor() const { return _scale_factor; };
+
+  private:
+    double _scale_factor;
+};
+
+class AGLScreenInfoPrivate
+{
+  public:
+    unsigned long width_dp(void) const { return _width_dp; };
+    unsigned long height_dp(void) const { return _height_dp; };
+    unsigned long width_mm(void) const { return _width_mm; };
+    unsigned long height_mm(void) const { return _height_mm; };
+    double scale_factor(void) const { return _scale; };
+
+    void set_width_dp(unsigned long w) { _width_dp = w; };
+    void set_height_dp(unsigned long h) { _height_dp = h; };
+    void set_width_mm(unsigned long w) { _width_mm = w; };
+    void set_height_mm(unsigned long h) { _height_mm = h; };
+    void set_scale_factor(double scale) { _scale = scale; };
+
+  private:
+    unsigned long _width_dp;
+    unsigned long _height_dp;
+    unsigned long _width_mm;
+    unsigned long _height_mm;
+    double _scale = 1.0;
+};
+
 class QLibWindowmanager : public QObject{
 Q_OBJECT
 public:
@@ -58,8 +94,11 @@ public:
     Q_INVOKABLE int activateWindow(const QString &label, const QString &drawing_area);
     Q_INVOKABLE int deactivateWindow(const QString &label);
     Q_INVOKABLE int endDraw(const QString &label);
+
     void set_event_handler(enum QEventType et, handler_fun f);
 
+    double get_scale_factor() const { return screen_info->scale_factor(); };
+
     // These APIs are deprecated, please use new API
     THIS_FUNCTION_IS_DEPRECATED(Q_INVOKABLE int activateSurface(const QString &label));
     THIS_FUNCTION_IS_DEPRECATED(Q_INVOKABLE int activateSurface(const QString &label, const QString &drawing_area));
@@ -75,6 +114,6 @@ private:
     LibWindowmanager* wm;
     const char* applabel;
     bool isActive;
-
+    AGLScreenInfoPrivate* screen_info;
 };
 #endif // LIBWINDOWMANAGER_H