ProgressBar.cpp

00001 /* NeatGUI Library
00002  * Copyright (c) 2014 Neil Thiessen
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #include "ProgressBar.h"
00018 
00019 ProgressBar::ProgressBar(int x, int y, int w, int h, Font *fnt) : Control(x, y, w, h)
00020 {
00021     m_Value = 0.0;
00022     text(NULL);
00023     font(fnt);
00024     border(1);
00025     padding(1);
00026     foreColor(0xFFFFFFFF);
00027     backColor(0xFF000000);
00028 }
00029 
00030 float ProgressBar::value()
00031 {
00032     //Return the current value
00033     return m_Value;
00034 }
00035 
00036 void ProgressBar::value(float v)
00037 {
00038     //Update the value with range-limiting
00039     if (v < 0)
00040         m_Value = 0;
00041     else if (v > 100)
00042         m_Value = 100;
00043     else
00044         m_Value = v;
00045 
00046     //Force a repaint
00047     invalidate();
00048 }
00049 
00050 void ProgressBar::paint(Canvas* canvas)
00051 {
00052     //Paint the base class
00053     Control::paint(canvas);
00054 
00055     //Draw the progress bar
00056     canvas->fillRect(contentPosX(), contentPosY(), contentWidth() * m_Value, contentHeight(), foreColor());
00057 }