feat(Utility): add drawImage method #5938
Merged
+11
−1
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Co-Authored-By: a0926019412 <[email protected]>
Contributor
Reviewer's GuideThis pull request introduces a new JavaScript utility function File-Level Changes
Assessment against linked issues
Possibly linked issues
Tips and commandsInteracting with Sourcery
Customizing Your ExperienceAccess your dashboard to:
Getting Help
|
Contributor
There was a problem hiding this comment.
Pull Request Overview
This PR updates the project version and introduces a new JavaScript utility function to draw an image on a canvas with proper scaling for device pixel ratios.
- Updated project version in BootstrapBlazor.csproj
- Added the drawImage function in utility.js
Files not reviewed (1)
- src/BootstrapBlazor/BootstrapBlazor.csproj: Language not supported
| canvas.height = offsetHeight * devicePixelRatio; | ||
| canvas.style.width = `${offsetWidth}px`; | ||
| canvas.style.height = `${offsetHeight}px`; | ||
| const context = canvas.getContext('2d'); |
There was a problem hiding this comment.
Consider verifying that canvas.getContext('2d') returns a valid context object before applying transformations and drawing the image.
Suggested change
| const context = canvas.getContext('2d'); | |
| const context = canvas.getContext('2d'); | |
| if (!context) { | |
| console.error("Failed to get 2D context from canvas."); | |
| return; | |
| } |
Comment on lines
+880
to
+885
| canvas.width = offsetWidth * devicePixelRatio; | ||
| canvas.height = offsetHeight * devicePixelRatio; | ||
| canvas.style.width = `${offsetWidth}px`; | ||
| canvas.style.height = `${offsetHeight}px`; | ||
| const context = canvas.getContext('2d'); | ||
| context.scale(devicePixelRatio, devicePixelRatio); |
There was a problem hiding this comment.
[nitpick] Consider assigning window.devicePixelRatio to a local variable if used multiple times for improved clarity and potential performance benefits.
Suggested change
| canvas.width = offsetWidth * devicePixelRatio; | |
| canvas.height = offsetHeight * devicePixelRatio; | |
| canvas.style.width = `${offsetWidth}px`; | |
| canvas.style.height = `${offsetHeight}px`; | |
| const context = canvas.getContext('2d'); | |
| context.scale(devicePixelRatio, devicePixelRatio); | |
| const pixelRatio = window.devicePixelRatio; | |
| canvas.width = offsetWidth * pixelRatio; | |
| canvas.height = offsetHeight * pixelRatio; | |
| canvas.style.width = `${offsetWidth}px`; | |
| canvas.style.height = `${offsetHeight}px`; | |
| const context = canvas.getContext('2d'); | |
| context.scale(pixelRatio, pixelRatio); |
![sourcery-ai[bot]](https://avatars.githubusercontent.com/in/48477?s=60&v=4){kind=small}
Contributor
There was a problem hiding this comment.
Hey @ArgoZhang - I've reviewed your changes - here's some feedback:
- The
drawImagefunction could be made more flexible by accepting an existing canvas context instead of retrieving it internally.
Here's what I looked at during the review
- 🟡 General issues: 1 issue found
- 🟢 Security: all looks good
- 🟢 Testing: all looks good
- 🟢 Complexity: all looks good
- 🟢 Documentation: all looks good
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
Comment on lines
+884
to
+886
| const context = canvas.getContext('2d'); | ||
| context.scale(devicePixelRatio, devicePixelRatio); | ||
| context.drawImage(image, 0, 0, offsetWidth, offsetHeight); |
Contributor
There was a problem hiding this comment.
suggestion: Handle potential null from getContext('2d').
Verify canvas.getContext('2d') returns a non-null context before scaling or drawing the image.
Suggested change
| const context = canvas.getContext('2d'); | |
| context.scale(devicePixelRatio, devicePixelRatio); | |
| context.drawImage(image, 0, 0, offsetWidth, offsetHeight); | |
| const context = canvas.getContext('2d'); | |
| if (context) { | |
| context.scale(devicePixelRatio, devicePixelRatio); | |
| context.drawImage(image, 0, 0, offsetWidth, offsetHeight); | |
| } else { | |
| console.error('2D context not available on canvas.'); | |
| } |
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #5938 +/- ##
=========================================
Coverage 100.00% 100.00%
=========================================
Files 665 665
Lines 30485 30485
Branches 4345 4345
=========================================
Hits 30485 30485 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
|
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Link issues
fixes #5937
Summary By Copilot
This pull request includes a version update in the project file and adds a new utility function for drawing images on a canvas in the JavaScript module. Below are the details:
Project Version Update:
src/BootstrapBlazor/BootstrapBlazor.csproj: Updated the project version from9.6.1-beta01to9.6.1-beta02.JavaScript Utility Enhancement:
src/BootstrapBlazor/wwwroot/modules/utility.js: Added a newdrawImagefunction to handle drawing images on a canvas with proper scaling for device pixel ratios.Regression?
Risk
Verification
Packaging changes reviewed?
☑️ Self Check before Merge
Summary by Sourcery
Add a new utility function for drawing images on canvas with proper device pixel ratio scaling
New Features:
drawImagemethod in utility.js to handle canvas image drawing with device pixel ratio supportChores: