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電子文宣,菜單循環換頁

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This commit is contained in:
allen.yan 2025-07-29 17:38:11 +08:00
parent aae7d22a20
commit f95e7776db
1 changed files with 41 additions and 27 deletions
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68
PromotionsAndMenuPanel.cs
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@ -1,10 +1,12 @@
namespace DualScreenDemo namespace DualScreenDemo
{ {
public class PromotionsAndMenuPanel : Panel public class PromotionsAndMenuPanel : Panel
{ {
public ImagePanel prevPagePanel; //public ImagePanel prevPagePanel;
public ImagePanel currentPagePanel; public ImagePanel currentPagePanel;
public ImagePanel nextPagePanel; //public ImagePanel nextPagePanel;
private List<Image> promotionsAndMenuImages; private List<Image> promotionsAndMenuImages;
private const int ImagesPerPage = 1; private const int ImagesPerPage = 1;
@ -32,25 +34,25 @@ namespace DualScreenDemo
private void InitializePages() private void InitializePages()
{ {
prevPagePanel = new ImagePanel(); //prevPagePanel = new ImagePanel();
currentPagePanel = new ImagePanel(); currentPagePanel = new ImagePanel();
nextPagePanel = new ImagePanel(); // nextPagePanel = new ImagePanel();
PrimaryForm.ResizeAndPositionControl(prevPagePanel, -1440, 0, 1440, 900); // PrimaryForm.ResizeAndPositionControl(prevPagePanel, -1440, 0, 1440, 900);
PrimaryForm.ResizeAndPositionControl(currentPagePanel, 0, 0, 1440, 900); PrimaryForm.ResizeAndPositionControl(currentPagePanel, 0, 0, 1440, 900);
PrimaryForm.ResizeAndPositionControl(nextPagePanel, 1440, 0, 1440, 900); // PrimaryForm.ResizeAndPositionControl(nextPagePanel, 1440, 0, 1440, 900);
this.Controls.Add(prevPagePanel); //this.Controls.Add(prevPagePanel);
this.Controls.Add(currentPagePanel); this.Controls.Add(currentPagePanel);
this.Controls.Add(nextPagePanel); //this.Controls.Add(nextPagePanel);
} }
public void LoadImages(List<Image> images) public void LoadImages(List<Image> images)
{ {
promotionsAndMenuImages = images; promotionsAndMenuImages = images;
LoadPage(currentPageIndex - 1); //LoadPage(currentPageIndex - 1);
LoadPage(currentPageIndex); LoadPage(currentPageIndex);
LoadPage(currentPageIndex + 1); //LoadPage(currentPageIndex + 1);
} }
private void LoadPage(int pageIndex) private void LoadPage(int pageIndex)
@ -75,11 +77,11 @@ namespace DualScreenDemo
private ImagePanel IdentifyTargetPanel(int pageIndex) private ImagePanel IdentifyTargetPanel(int pageIndex)
{ {
if (pageIndex == currentPageIndex - 1) //if (pageIndex == currentPageIndex - 1)
return prevPagePanel; // return prevPagePanel;
else if (pageIndex == currentPageIndex + 1) // else if (pageIndex == currentPageIndex + 1)
return nextPagePanel; // return nextPagePanel;
else // else
return currentPagePanel; return currentPagePanel;
} }
@ -121,6 +123,7 @@ namespace DualScreenDemo
if (deltaX < maxNegativeDeltaX) maxNegativeDeltaX = deltaX; if (deltaX < maxNegativeDeltaX) maxNegativeDeltaX = deltaX;
ShiftPages(deltaX); ShiftPages(deltaX);
} }
} }
@ -142,9 +145,7 @@ namespace DualScreenDemo
if (newLeft > 1440) newLeft = 1440; if (newLeft > 1440) newLeft = 1440;
if (newLeft < -1440) newLeft = -1440; if (newLeft < -1440) newLeft = -1440;
prevPagePanel.Location = new Point(newLeft - 1440, 0);
currentPagePanel.Location = new Point(newLeft, 0);
nextPagePanel.Location = new Point(newLeft + 1440, 0);
this.Invalidate(); this.Invalidate();
this.Update(); this.Update();
@ -161,9 +162,7 @@ namespace DualScreenDemo
LoadNextPage(); LoadNextPage();
} }
prevPagePanel.Location = new Point(-1560, 0);
currentPagePanel.Location = new Point(0, 0);
nextPagePanel.Location = new Point(1440, 0);
maxPositiveDeltaX = 0; maxPositiveDeltaX = 0;
maxNegativeDeltaX = 0; maxNegativeDeltaX = 0;
@ -172,19 +171,34 @@ namespace DualScreenDemo
public void LoadPreviousPage() public void LoadPreviousPage()
{ {
if (currentPageIndex > 0) if (currentPageIndex > 0)
{
currentPageIndex--; currentPageIndex--;
LoadPage(currentPageIndex - 1); //LoadPage(currentPageIndex - 1);
LoadPage(currentPageIndex); LoadPage(currentPageIndex);
LoadPage(currentPageIndex + 1); //LoadPage(currentPageIndex + 1);
}
else
{
currentPageIndex = promotionsAndMenuImages.Count-1;
LoadPage(currentPageIndex);
}
} }
public void LoadNextPage() public void LoadNextPage()
{ {
if (currentPageIndex < (promotionsAndMenuImages.Count - 1) / ImagesPerPage) if (currentPageIndex < (promotionsAndMenuImages.Count - 1) / ImagesPerPage)
{
currentPageIndex++; currentPageIndex++;
LoadPage(currentPageIndex - 1); //LoadPage(currentPageIndex - 1);
LoadPage(currentPageIndex); LoadPage(currentPageIndex);
LoadPage(currentPageIndex + 1); //LoadPage(currentPageIndex + 1);
}
else {
currentPageIndex = 0;
LoadPage(currentPageIndex);
}
} }
} }
} }