Rudimentary touchscreen support

[libs/gltk.git] / source / container.cpp

diff --git a/source/container.cpp b/source/container.cpp
index b7bd2ad5dc9b06f7eb88c08db4fd90b43356c781..21d31fb0e2af7a988159a74895cfddc863e8c536 100644 (file)
--- a/source/container.cpp
+++ b/source/container.cpp
@@ -16,7 +16,8 @@ Container::Container():
        click_button(0),
        pointer_focus(0),
        pointer_grabbed(false),
-       input_focus(0)
+       input_focus(0),
+       touch_focus(0)
 { }
 
 Container::~Container()
@@ -166,7 +167,7 @@ Widget *Container::get_final_input_focus() const
 
 void Container::button_press(int x, int y, unsigned btn)
 {
-       if(Widget *child = get_pointer_target(x, y))
+       if(Widget *child = get_pointer_target(x, y, false))
        {
                if(!click_focus)
                {
@@ -185,7 +186,7 @@ void Container::button_press(int x, int y, unsigned btn)
 
 void Container::button_release(int x, int y, unsigned btn)
 {
-       if(Widget *child = get_pointer_target(x, y))
+       if(Widget *child = get_pointer_target(x, y, false))
        {
                if(child==click_focus && btn==click_button)
                {
@@ -201,7 +202,7 @@ void Container::button_release(int x, int y, unsigned btn)
 
 void Container::pointer_motion(int x, int y)
 {
-       Widget *child = get_pointer_target(x, y);
+       Widget *child = get_pointer_target(x, y, false);
        if(!pointer_grabbed)
                set_pointer_focus((!click_focus || child->get_geometry().is_inside(x, y)) ? child : 0);
 
@@ -212,12 +213,14 @@ void Container::pointer_motion(int x, int y)
        }
 }
 
-Widget *Container::get_pointer_target(int x, int y) const
+Widget *Container::get_pointer_target(int x, int y, bool touch) const
 {
        if(pointer_grabbed)
                return pointer_focus;
-       else if(click_focus)
+       else if(!touch && click_focus)
                return click_focus;
+       else if(touch && touch_focus)
+               return touch_focus;
        else
        {
                Widget *child = get_child_at(x, y);
@@ -252,6 +255,41 @@ void Container::character(wchar_t ch)
                input_focus->character(ch);
 }
 
+void Container::touch_press(int x, int y, unsigned finger)
+{
+       if(Widget *child = get_pointer_target(x, y, true))
+       {
+               // TODO track focus for each finger separately
+               if(!touch_focus)
+                       touch_focus = child;
+
+               const Geometry &cgeom = child->get_geometry();
+               child->touch_press(x-cgeom.x, y-cgeom.y, finger);
+       }
+}
+
+void Container::touch_release(int x, int y, unsigned finger)
+{
+       if(Widget *child = get_pointer_target(x, y, true))
+       {
+               // TODO track focus for each finger separately
+               if(child==touch_focus)
+                       touch_focus = 0;
+
+               const Geometry &cgeom = child->get_geometry();
+               child->touch_release(x-cgeom.x, y-cgeom.y, finger);
+       }
+}
+
+void Container::touch_motion(int x, int y, unsigned finger)
+{
+       if(Widget *child = get_pointer_target(x, y, true))
+       {
+               const Geometry &cgeom = child->get_geometry();
+               child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
+       }
+}
+
 void Container::focus_out()
 {
        set_input_focus(0);