Split VolumeBox class out of DisplayVolume

So we can reuse this VolumeBox code later.

1 files changed, 121 insertions, 0 deletions

diff --git a/volumebox.c b/volumebox.c
new file mode 100644
index 0000000..edd2302
--- /dev/null
+++ b/volumebox.c
@@ -0,0 +1,121 @@
+#include "symbols/mute.xpm"
+#include "displayvolume.h"
+
+#include "config.h"
+#include "helpers.h"
+
+cNopacityVolumeBox::cNopacityVolumeBox(cOsd *osd, const cRect &Rect) {
+
+    this->osd = osd;
+    
+    pixmapBackgroundVolume = osd->CreatePixmap(6, cRect(Rect));
+    pixmapBackgroundVolume->Fill(clrTransparent);
+
+    if (config.GetValue("displayType") == dtGraphical) {
+        cImage *imgBack = imgCache->GetSkinElement(seVolumeBackground);
+        if (imgBack) {
+            pixmapBackgroundVolume->DrawImage(cPoint(0, 0), *imgBack);
+        }
+    } else {
+        pixmapBackgroundVolume->Fill(Theme.Color(clrChannelBackground));
+        if (config.GetValue("displayType") == dtBlending) {
+            DrawBlendedBackground(pixmapBackgroundVolume,
+                                  0,
+                                  geoManager->volumeWidth,
+                                  Theme.Color(clrChannelBackground),
+                                  Theme.Color(clrChannelBackBlend),
+                                  true);
+            DrawBlendedBackground(pixmapBackgroundVolume,
+                                  0,
+                                  geoManager->volumeWidth,
+                                  Theme.Color(clrChannelBackground),
+                                  Theme.Color(clrChannelBackBlend),
+                                  false);
+        }
+        int cornerRadius = geoManager->volumeHeight/4;
+        if (cornerRadius > 2) {
+            DrawRoundedCorners(pixmapBackgroundVolume,
+                               cornerRadius,
+                               0,
+                               0,
+                               geoManager->volumeWidth,
+                               geoManager->volumeHeight);
+        }
+    }
+    pixmapLabelVolume = osd->CreatePixmap(7, cRect(Rect.Left(), Rect.Top() + 5, geoManager->volumeWidth, geoManager->volumeLabelHeight));
+    pixmapProgressBarVolume = osd->CreatePixmap(7, cRect((Rect.Left() + (geoManager->volumeWidth - geoManager->volumeProgressBarWidth) / 2), Rect.Top() + ((geoManager->volumeHeight - geoManager->volumeProgressBarHeight) * 2 / 3), geoManager->volumeProgressBarWidth, geoManager->volumeProgressBarHeight));
+}
+
+cNopacityVolumeBox::~cNopacityVolumeBox(void) {
+    osd->DestroyPixmap(pixmapProgressBarVolume);
+    osd->DestroyPixmap(pixmapLabelVolume);
+    osd->DestroyPixmap(pixmapBackgroundVolume);
+}
+
+void cNopacityVolumeBox::SetVolume(int Current, int Total, bool Mute) {
+    pixmapLabelVolume->Fill(clrTransparent);
+    cString label = cString::sprintf("%s: %d", tr("Volume"), Current);
+    pixmapLabelVolume->DrawText(cPoint((geoManager->volumeWidth - fontManager->volumeText->Width(*label)) / 2, (geoManager->volumeLabelHeight - fontManager->volumeText->Height()) / 2), *label, Theme.Color(clrVolumeFont), clrTransparent, fontManager->volumeText);
+    if (Mute) {
+        cBitmap bmMute(mute_xpm);
+        pixmapLabelVolume->DrawBitmap(cPoint(geoManager->volumeWidth - 2 * bmMute.Width(), (geoManager->volumeLabelHeight - bmMute.Height()) / 2), bmMute, Theme.Color(clrDiskAlert), clrTransparent);
+    }
+        DrawProgressBar(Current, Total);
+}
+
+void cNopacityVolumeBox::DrawProgressBar(int Current, int Total) {
+    pixmapProgressBarVolume->Fill(clrTransparent);
+    if (geoManager->volumeProgressBarHeight < 5)
+        return;
+    double percent = ((double)Current) / (double)Total;
+    int barWidth = geoManager->volumeProgressBarWidth - geoManager->volumeProgressBarHeight;
+    if ((Current > 0) || (Total > 0)) {
+        pixmapProgressBarVolume->DrawEllipse(cRect(0, 0, geoManager->volumeProgressBarHeight, geoManager->volumeProgressBarHeight), Theme.Color(clrProgressBarBack));
+        pixmapProgressBarVolume->DrawEllipse(cRect(geoManager->volumeProgressBarWidth - geoManager->volumeProgressBarHeight, 0, geoManager->volumeProgressBarHeight, geoManager->volumeProgressBarHeight), Theme.Color(clrProgressBarBack));
+        pixmapProgressBarVolume->DrawRectangle(cRect(geoManager->volumeProgressBarHeight / 2, 0, geoManager->volumeProgressBarWidth - geoManager->volumeProgressBarHeight, geoManager->volumeProgressBarHeight), Theme.Color(clrProgressBarBack));
+
+        pixmapProgressBarVolume->DrawEllipse(cRect(1, 1, geoManager->volumeProgressBarHeight - 2, geoManager->volumeProgressBarHeight - 2), Theme.Color(clrProgressBarBlend));
+        if (Current > 0) {
+            tColor colAct = DrawProgressbarBackground(geoManager->volumeProgressBarHeight / 2 - 1, 1, barWidth * percent - 2, geoManager->volumeProgressBarHeight - 2);
+            pixmapProgressBarVolume->DrawEllipse(cRect(barWidth * percent, 1, geoManager->volumeProgressBarHeight - 2, geoManager->volumeProgressBarHeight - 2), colAct);
+        }
+    }
+}
+
+tColor cNopacityVolumeBox::DrawProgressbarBackground(int left, int top, int width, int height) {
+
+    tColor clr1 = Theme.Color(clrProgressBar);
+    tColor clr2 = Theme.Color(clrProgressBarBlend);
+    tColor clr = 0x00000000;
+
+    int alpha = 0x0;                                    // 0...255
+    int alphaStep = 0x1;
+    int maximumsteps = 256;                             // alphaStep * maximumsteps <= 256
+    int factor = 2;                                     // max. 128 steps
+
+    double step = width / maximumsteps;
+    if (width < 128) {                                  // width < 128
+        factor = 4 * factor;                            // 32 steps
+    } else if (width < 256) {                           // width < 256
+        factor = 2 * factor;                            // 64 steps
+    }
+
+    step = step * factor;
+    alphaStep = alphaStep * factor;
+    maximumsteps = maximumsteps / factor;
+
+    int x = left + height / 2;
+    for (int i = 0; i < maximumsteps; i++) {
+        x = left + height / 2 + i * step;
+        clr = AlphaBlend(clr1, clr2, alpha);
+        pixmapProgressBarVolume->DrawRectangle(cRect(x, top, step + 1, height), clr);
+        alpha += alphaStep;
+    }
+    return clr;
+}
+
+void cNopacityVolumeBox::SetAlpha(int Alpha) {
+    pixmapBackgroundVolume->SetAlpha(Alpha);
+    pixmapProgressBarVolume->SetAlpha(Alpha);
+    pixmapLabelVolume->SetAlpha(Alpha);
+}