editor: highlighting the current mode

engine/IMGUIControls.cc

@@ -272,6 +272,121 @@ bool Button (int id, const char* caption, int x, int y, int w, int h) {
 	return false;
 }
 
+bool CheckButton (int id, const char* caption, bool checked, int x, int y, int w, int h) {
+	controller = EngineGetController();
+	assert (controller);
+
+//	LogMessage ("id = %d hotitem = %d activeitem = %d kbditem = %d", id, controller->uistate.hotitem, controller->uistate.activeitem, controller->uistate.kbditem);
+
+	// Check for hotness
+	if (regionhit (x, y, w, h)) {
+		controller->uistate.hotitem = id;
+		if (controller->uistate.activeitem == 0 
+				&& controller->GetButtonState(MouseButtonLeft))
+			controller->uistate.activeitem = id;
+	}
+
+	// If nothing is selected
+	if (controller->uistate.hotitem != 0) {
+		controller->uistate.kbditem = controller->uistate.hotitem;
+	}
+
+	if (controller->uistate.kbditem == 0) {
+		controller->uistate.hotitem = id;
+		controller->uistate.kbditem = id;
+	}
+
+	// Render
+	if (checked) {
+		glColor3f (0.91, 0.84, 0.);
+		DrawRoundedBlock (x - 2, y - 2, w + 4, h + 4);
+	}
+
+	glColor3f (0.2, 0.2, 0.2);
+
+	if (controller->uistate.hotitem == id 
+			|| controller->uistate.kbditem == id) {
+		if (controller->uistate.activeitem == id) {
+			glColor3f (0.8, 0.8, 0.8);
+			DrawRoundedBlock (x, y, w, h);
+		} else {
+			glColor3f (0.7, 0.7, 0.7);
+			DrawRoundedBlock (x, y, w, h);
+		}
+	} else {
+		glColor3f (0.4, 0.4, 0.4);
+		DrawRoundedBlock (x, y, w, h);
+	}
+
+	// Caption
+	if (caption != NULL) {
+		float width, height;
+		view = EngineGetView ();
+		assert (view);
+
+		// we have to load the font prior to measuring it
+		SelectFont("console.ttf size=23");
+		view->DrawGLStringMeasure(caption, &width, &height);
+
+		float xpos = x + w * 0.5 - width * 0.5;
+		float ypos = y + h * 0.5 - height * 0.5;
+		// LogDebug ("measure '%s' width = %f height = %f", caption, width, height);
+
+		if (controller->uistate.hotitem == id || controller->uistate.kbditem == id) {
+			SelectFont("console.ttf size=23 color=#666666");
+			view->DrawGLString( xpos - 2., ypos + 2., caption);
+			SelectFont("console.ttf size=23 color=#ffffff");
+			view->DrawGLString( xpos, ypos, caption);
+		}	else {
+			SelectFont("console.ttf size=23 color=#4d4d4d");
+			view->DrawGLString( xpos - 2., ypos + 2., caption);
+			SelectFont("console.ttf size=23 color=#b3b3b3");
+			view->DrawGLString( xpos, ypos, caption);
+		}
+	}
+
+	// Mouse Logic
+	if (controller->GetButtonState(MouseButtonLeft) == false
+			&& controller->uistate.hotitem == id
+			&& controller->uistate.activeitem == id) {
+		controller->uistate.lastwidget = id;
+
+		return true;
+	}
+
+	// Keyboard Logic
+	if (controller->uistate.kbditem == id) {
+		// Any unicode keys that were sent get cleared
+		controller->uistate.last_unicode = 0;
+
+		// We have to make sure, that we always clear the uistate.last_keysym
+		// value, otherwise the same action might be repeated over and over.
+		switch (controller->uistate.last_keysym) {
+			case SDLK_DOWN:
+				controller->uistate.kbditem = 0;
+				controller->uistate.hotitem = 0;
+				controller->uistate.last_keysym = SDLK_CLEAR;
+				break;
+			case SDLK_UP:
+				controller->uistate.kbditem = controller->uistate.lastwidget;
+				controller->uistate.hotitem = controller->uistate.lastwidget;
+				controller->uistate.last_keysym = SDLK_CLEAR;
+				break;
+			case SDLK_RETURN:
+				controller->uistate.last_keysym = SDLK_CLEAR;
+				// As we (probably) exit the current set of widgets, we have to clear
+				// the uistate.kbditem value.
+				controller->uistate.kbditem = 0;
+				return true;
+				break;
+		}
+	}
+
+	controller->uistate.lastwidget = id;
+
+	return false;
+}
+
 /** \brief An Edit widget that allows editing of a string consisting of one line 
  *
  * \TODO [med] vertical alignment (especially of text) is a bit whacky

engine/IMGUIControls.h

@@ -34,6 +34,8 @@ void LabelCentered (int id, const char* caption, int x, int y);
  */
 bool Button (int id, const char* caption, int x, int y, int w, int h);
 
+bool CheckButton (int id, const char* caption, bool state, int x, int y, int w, int h);
+
 bool LineEdit (int id, int x, int y, std::string &text_value, const int &maxlength);
 
 float VerticalSlider (int id, int x, int y, int w, int h, float min_value, float max_value, float &value);