From e33e19d0587146859d48a134ec9fd94e7b7ba5cd Mon Sep 17 00:00:00 2001 From: "FWoltermann@gmail.com" Date: Thu, 8 Dec 2011 14:53:40 +0000 Subject: Initial upload --- nGenEx/EventDispatch.cpp | 275 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 275 insertions(+) create mode 100644 nGenEx/EventDispatch.cpp (limited to 'nGenEx/EventDispatch.cpp') diff --git a/nGenEx/EventDispatch.cpp b/nGenEx/EventDispatch.cpp new file mode 100644 index 0000000..e17713b --- /dev/null +++ b/nGenEx/EventDispatch.cpp @@ -0,0 +1,275 @@ +/* Project nGenEx + Destroyer Studios LLC + Copyright © 1997-2004. All Rights Reserved. + + SUBSYSTEM: nGenEx.lib + FILE: EventDispatch.cpp + AUTHOR: John DiCamillo + +*/ + +#include "MemDebug.h" +#include "EventDispatch.h" +#include "Mouse.h" +#include "Keyboard.h" + +// +--------------------------------------------------------------------+ + +int GetKeyPlus(int& key, int& shift); + +// +--------------------------------------------------------------------+ + +EventDispatch* EventDispatch::dispatcher = 0; + +// +--------------------------------------------------------------------+ + +EventDispatch::EventDispatch() + : capture(0), current(0), focus(0), click_tgt(0) + , mouse_x(0), mouse_y(0), mouse_l(0), mouse_r(0) +{ } + +EventDispatch::~EventDispatch() +{ } + +// +--------------------------------------------------------------------+ + +void +EventDispatch::Create() +{ + dispatcher = new(__FILE__,__LINE__) EventDispatch; +} + +// +--------------------------------------------------------------------+ + +void +EventDispatch::Close() +{ + delete dispatcher; + dispatcher = 0; +} + +// +--------------------------------------------------------------------+ + +void +EventDispatch::Dispatch() +{ + int ml = Mouse::LButton(); + int mr = Mouse::RButton(); + int mx = Mouse::X(); + int my = Mouse::Y(); + int mw = Mouse::Wheel(); + + EventTarget* mouse_tgt = capture; + EventTarget* key_tgt = focus; + EventTarget* do_click = 0; + + if (!mouse_tgt) { + ListIter iter = clients; + while (++iter) { + EventTarget* test = iter.value(); + if (test->IsFormActive()) { + if (test->TargetRect().Contains(mx,my)) + mouse_tgt = test; + + if (test->HasFocus()) + key_tgt = test; + } + } + } + + // Mouse Events: + + if (mouse_tgt != current) { + if (current && current->IsEnabled() && current->IsVisible()) + current->OnMouseExit(mx,my); + + current = mouse_tgt; + + if (current && current->IsEnabled() && current->IsVisible()) + current->OnMouseEnter(mx,my); + } + + if (mouse_tgt && mouse_tgt->IsEnabled()) { + if (mx != mouse_x || my != mouse_y) + mouse_tgt->OnMouseMove(mx,my); + + if (mw != 0) + mouse_tgt->OnMouseWheel(mw); + + if (ml != mouse_l) { + if (ml) { + mouse_tgt->OnLButtonDown(mx,my); + click_tgt = mouse_tgt; + } + else { + mouse_tgt->OnLButtonUp(mx,my); + + if (click_tgt == mouse_tgt) { + if (click_tgt->TargetRect().Contains(mx,my)) + do_click = click_tgt; + click_tgt = 0; + } + } + } + + if (mr != mouse_r) { + if (mr) + mouse_tgt->OnRButtonDown(mx,my); + else + mouse_tgt->OnRButtonUp(mx,my); + } + } + + mouse_l = ml; + mouse_r = mr; + mouse_x = mx; + mouse_y = my; + + // Keyboard Events: + + if (click_tgt && click_tgt != key_tgt) { + if (key_tgt) key_tgt->KillFocus(); + key_tgt = click_tgt; + + if (key_tgt != focus) { + if (focus) focus->KillFocus(); + + if (key_tgt && key_tgt->IsEnabled() && key_tgt->IsVisible()) + focus = key_tgt; + else + key_tgt = 0; + + if (focus) focus->SetFocus(); + } + } + + if (key_tgt && key_tgt->IsEnabled()) { + int key = 0; + int shift = 0; + + while (GetKeyPlus(key, shift)) { + if (key == VK_ESCAPE) { + key_tgt->KillFocus(); + focus = 0; + break; + } + + else if (key == VK_TAB && focus) { + int key_index = clients.index(focus) + 1; + + if (shift & 1) key_index -= 2; + + if (key_index >= clients.size()) + key_index = 0; + else if (key_index < 0) + key_index = clients.size()-1; + + if (focus) focus->KillFocus(); + focus = clients[key_index]; + if (focus) focus->SetFocus(); + + break; + } + + key_tgt->OnKeyDown(key, shift); + } + } + + if (do_click) + do_click->OnClick(); +} + +// +--------------------------------------------------------------------+ + +void +EventDispatch::MouseEnter(EventTarget* mouse_tgt) +{ + if (mouse_tgt != current) { + if (current) current->OnMouseExit(0,0); + current = mouse_tgt; + if (current) current->OnMouseEnter(0,0); + } +} + +// +--------------------------------------------------------------------+ + +void +EventDispatch::Register(EventTarget* tgt) +{ + if (!clients.contains(tgt)) + clients.append(tgt); +} + +// +--------------------------------------------------------------------+ + +void +EventDispatch::Unregister(EventTarget* tgt) +{ + clients.remove(tgt); + + if (capture == tgt) capture = 0; + if (current == tgt) current = 0; + if (focus == tgt) focus = 0; + if (click_tgt == tgt) click_tgt = 0; +} + +// +--------------------------------------------------------------------+ + +EventTarget* +EventDispatch::GetCapture() +{ + return capture; +} + +int +EventDispatch::CaptureMouse(EventTarget* tgt) +{ + if (tgt) { + capture = tgt; + return 1; + } + + return 0; +} + +int +EventDispatch::ReleaseMouse(EventTarget* tgt) +{ + if (capture == tgt) { + capture = 0; + return 1; + } + + return 0; +} + +// +--------------------------------------------------------------------+ + +EventTarget* +EventDispatch::GetFocus() +{ + return focus; +} + +void +EventDispatch::SetFocus(EventTarget* tgt) +{ + if (focus != tgt) { + if (focus) + focus->KillFocus(); + + focus = tgt; + + if (focus && focus->IsEnabled() && focus->IsVisible()) + focus->SetFocus(); + } +} + +void +EventDispatch::KillFocus(EventTarget* tgt) +{ + if (focus && focus == tgt) { + focus = 0; + tgt->KillFocus(); + } +} -- cgit v1.1