ZVISION: Implement functions for system messaging.

4 files changed, 85 insertions, 0 deletions

diff --git a/engines/zvision/graphics/render_manager.cpp b/engines/zvision/graphics/render_manager.cpp
index f3b01b7e30..c89444df13 100644
--- a/engines/zvision/graphics/render_manager.cpp
+++ b/engines/zvision/graphics/render_manager.cpp
@@ -729,6 +729,21 @@ uint16 RenderManager::createSubArea(const Common::Rect &area) {
 	return _subid;
 }
 
+uint16 RenderManager::createSubArea() {
+	_subid++;
+
+	oneSub sub;
+	sub.redraw = false;
+	sub.timer = -1;
+	sub.todelete = false;
+	sub._r = Common::Rect(_subWndRect.left, _subWndRect.top, _subWndRect.right, _subWndRect.bottom);
+	sub._r.translate(-_workingWindow.left, -_workingWindow.top);
+
+	_subsList[_subid] = sub;
+
+	return _subid;
+}
+
 void RenderManager::deleteSubArea(uint16 id) {
 	if (_subsList.contains(id))
 		_subsList[id].todelete = true;
diff --git a/engines/zvision/graphics/render_manager.h b/engines/zvision/graphics/render_manager.h
index ca2e715e8a..b4c6c76a6e 100644
--- a/engines/zvision/graphics/render_manager.h
+++ b/engines/zvision/graphics/render_manager.h
@@ -233,6 +233,7 @@ public:
 	void blitSurfaceToMenu(const Graphics::Surface &src, int x, int y, uint32 colorkey);
 
 	uint16 createSubArea(const Common::Rect &area);
+	uint16 createSubArea();
 	void deleteSubArea(uint16 id);
 	void deleteSubArea(uint16 id, int16 delay);
 	void updateSubArea(uint16 id, const Common::String &txt);
diff --git a/engines/zvision/zvision.cpp b/engines/zvision/zvision.cpp
index 0eb14257f2..24e15e0c86 100644
--- a/engines/zvision/zvision.cpp
+++ b/engines/zvision/zvision.cpp
@@ -212,6 +212,71 @@ Common::Error ZVision::run() {
 	return Common::kNoError;
 }
 
+bool ZVision::askQuestion(const Common::String &str) {
+	uint16 msgid = _renderManager->createSubArea();
+	_renderManager->updateSubArea(msgid, str);
+	_renderManager->processSubs(0);
+	_renderManager->renderBackbufferToScreen();
+	_clock.stop();
+
+	int result = 0;
+
+	while (result == 0) {
+		Common::Event evnt;
+		while (_eventMan->pollEvent(evnt)) {
+			if (evnt.type == Common::EVENT_KEYDOWN) {
+				switch (evnt.kbd.keycode) {
+				case Common::KEYCODE_y:
+					result = 2;
+					break;
+				case Common::KEYCODE_n:
+					result = 1;
+					break;
+				default:
+					break;
+				}
+			}
+		}
+		_system->updateScreen();
+		_system->delayMillis(66);
+	}
+	_renderManager->deleteSubArea(msgid);
+	_clock.start();
+	return result == 2;
+}
+
+void ZVision::delayedMessage(const Common::String &str, uint16 milsecs) {
+	uint16 msgid = _renderManager->createSubArea();
+	_renderManager->updateSubArea(msgid, str);
+	_renderManager->processSubs(0);
+	_renderManager->renderBackbufferToScreen();
+	_clock.stop();
+
+	uint32 stop_time = _system->getMillis() + milsecs;
+	while (_system->getMillis() < stop_time) {
+		Common::Event evnt;
+		while (_eventMan->pollEvent(evnt)) {
+			if (evnt.type == Common::EVENT_KEYDOWN &&
+			        (evnt.kbd.keycode == Common::KEYCODE_SPACE ||
+			         evnt.kbd.keycode == Common::KEYCODE_RETURN ||
+			         evnt.kbd.keycode == Common::KEYCODE_ESCAPE))
+				break;
+		}
+		_system->updateScreen();
+		_system->delayMillis(66);
+	}
+	_renderManager->deleteSubArea(msgid);
+	_clock.start();
+}
+
+void ZVision::timedMessage(const Common::String &str, uint16 milsecs) {
+	uint16 msgid = _renderManager->createSubArea();
+	_renderManager->updateSubArea(msgid, str);
+	_renderManager->processSubs(0);
+	_renderManager->renderBackbufferToScreen();
+	_renderManager->deleteSubArea(msgid, milsecs);
+}
+
 void ZVision::pauseEngineIntern(bool pause) {
 	_mixer->pauseAll(pause);
 
diff --git a/engines/zvision/zvision.h b/engines/zvision/zvision.h
index 57e7339da6..e5d32bf678 100644
--- a/engines/zvision/zvision.h
+++ b/engines/zvision/zvision.h
@@ -167,6 +167,10 @@ public:
 	Common::String generateSaveFileName(uint slot);
 	Common::String generateAutoSaveFileName();
 
+	bool askQuestion(const Common::String &str);
+	void delayedMessage(const Common::String &str, uint16 milsecs);
+	void timedMessage(const Common::String &str, uint16 milsecs);
+
 	void setRenderDelay(uint);
 	bool canRender();