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5abcb1a8d9
- Support block images; - Support line number; - Do NOT support line distance height due to constraint of QPlainTextEdit.
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
#ifndef VIMAGERESOURCEMANAGER_H
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#define VIMAGERESOURCEMANAGER_H
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#include <QHash>
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#include <QString>
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#include <QPixmap>
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#include <QTextBlock>
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#include <QVector>
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struct VBlockImageInfo;
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class VImageResourceManager
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{
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public:
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VImageResourceManager();
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// Add an image to the resource with @p_name as the key.
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// If @p_name already exists in the resources, it will update it.
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void addImage(const QString &p_name, const QPixmap &p_image);
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// Whether the resources contains image with name @p_name.
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bool contains(const QString &p_name) const;
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// Update the block-image info for all blocks.
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// @p_maximumWidth: maximum width of the images plus the margin.
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void updateBlockInfos(const QVector<VBlockImageInfo> &p_blocksInfo,
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int p_maximumWidth = INT_MAX);
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const VBlockImageInfo *findImageInfoByBlock(int p_blockNumber) const;
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const QPixmap *findImage(const QString &p_name) const;
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void clear();
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// Update the width of all the block info.
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void updateImageWidth(int p_maximumWidth);
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// Get the maximum width of all block images.
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int getMaximumImageWidth() const;
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private:
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// Adjust the width and height according to @p_maximumWidth and margin.
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void adjustWidthAndHeight(VBlockImageInfo &p_info, int p_maximumWidth);
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void updateMaximumImageWidth(const VBlockImageInfo &p_info, int p_maximumWidth);
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// All the images resources.
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QHash<QString, QPixmap> m_images;
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// Image info of all the blocks with image.
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QHash<int, VBlockImageInfo> m_blocksInfo;
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// Maximum width of all images from m_blocksInfo.
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int m_maximumImageWidth;
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};
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inline int VImageResourceManager::getMaximumImageWidth() const
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{
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return m_maximumImageWidth;
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}
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#endif // VIMAGERESOURCEMANAGER_H
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