Implement Win32 drag drop file and change main window size
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@ -4,4 +4,8 @@
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// 主窗体标题
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#define MAIN_FRAME_TITTLE L"DLT Splitter —— Dev by : LuChiChick"
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// 主窗体最小面积
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#define MAIN_FRAME_SIZE_WIDTH_MIN 350
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#define MAIN_FRAME_SIZE_HEIGHT_MIN 350 * 1.5
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#endif
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@ -11,6 +11,8 @@ extern "C"
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#include "d3d11.h"
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}
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#include "Type_Descriptions.hpp"
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// D3D11 相关
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extern ID3D11Device *g_pd3dDevice; // D3D11 设备句柄
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extern ID3D11DeviceContext *g_pd3dDeviceContext; // D3D11 设备上下文句柄
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@ -20,4 +22,8 @@ extern bool g_SwapChainOccluded; // 交换链是否阻塞
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extern ID3D11RenderTargetView *g_mainRenderTargetView; // D3D11 渲染目标
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// 文件输入相关
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extern Input_File_Node *input_dlt_file_list_head;
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extern size_t input_dlt_file_count;
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#endif
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11
Inc/Type_Descriptions.hpp
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11
Inc/Type_Descriptions.hpp
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@ -0,0 +1,11 @@
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#ifndef __TYPE_DESCRIPTIONS_HPP__
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#define __TYPE_DESCRIPTIONS_HPP__
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// 文件节点
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typedef struct Input_File_Node
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{
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char *file_name_str;
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Input_File_Node *p_next;
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} Input_File_Node;
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#endif
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@ -7,4 +7,8 @@ ID3D11DeviceContext *g_pd3dDeviceContext = nullptr; // D3D11 设备上下文句
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IDXGISwapChain *g_pSwapChain = nullptr; // DXGI 交换链句柄
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bool g_SwapChainOccluded = false; // 交换链是否阻塞
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ID3D11RenderTargetView *g_mainRenderTargetView = nullptr; // D3D11 渲染目标
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ID3D11RenderTargetView *g_mainRenderTargetView = nullptr; // D3D11 渲染目标
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// 文件输入相关
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Input_File_Node *input_dlt_file_list_head;
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size_t input_dlt_file_count;
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87
Src/Main.cpp
87
Src/Main.cpp
@ -61,17 +61,17 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
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RegisterClassExW(&wc);
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// 创建窗体
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HWND hwnd = CreateWindowW(wc.lpszClassName, // 创建的窗体类名
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MAIN_FRAME_TITTLE, // 窗体标题
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WS_OVERLAPPEDWINDOW, // 窗体风格为标准可重叠的顶层窗口
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100, // 起始坐标x
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100, // 起始坐标y
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(int)(1280 * main_scale), // 窗体长
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(int)(720 * main_scale), // 窗体宽
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nullptr, // 父窗体句柄
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nullptr, // 菜单句柄
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wc.hInstance, // 创建实例句柄
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nullptr); // 额外的事件参数指针
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HWND hwnd = CreateWindowW(wc.lpszClassName, // 创建的窗体类名
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MAIN_FRAME_TITTLE, // 窗体标题
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WS_OVERLAPPEDWINDOW, // 窗体风格为标准可重叠的顶层窗口
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100, // 起始坐标x
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100, // 起始坐标y
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(int)(MAIN_FRAME_SIZE_WIDTH_MIN * main_scale), // 窗体长
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(int)(MAIN_FRAME_SIZE_HEIGHT_MIN * main_scale), // 窗体宽
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nullptr, // 父窗体句柄
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nullptr, // 菜单句柄
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wc.hInstance, // 创建实例句柄
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nullptr); // 额外的事件参数指针
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// 在窗体内创建 Direct 3D 设备
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if (!CreateDeviceD3D(hwnd))
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@ -84,6 +84,9 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
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return -1;
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}
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// 启用文件拖拽输入
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DragAcceptFiles(hwnd, TRUE);
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// 显示窗体并强制更新一次窗体
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ShowWindow(hwnd, SW_SHOWDEFAULT);
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UpdateWindow(hwnd);
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@ -333,6 +336,68 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
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// 筛查并处理余下的消息事件
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switch (msg)
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{
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case WM_DROPFILES: // 文件拖拽事件
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{
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HDROP hDrop = (HDROP)wParam; // 拖拽数据句柄
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// 获取拖拽的文件总数
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UINT fileCount = DragQueryFileW(hDrop, 0xFFFFFFFF, NULL, 0);
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// 添加到文件列表
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for (UINT count = 0; count < fileCount; count++)
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{
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wchar_t filePath[MAX_PATH] = {L'\0'};
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DragQueryFileW(
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hDrop, // 拖拽句柄
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count, // 文件索引（0 表示第一个文件）
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filePath, // 存储路径的缓冲区
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MAX_PATH // 缓冲区大小
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);
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char file_path_multi_byte[MAX_PATH] = {'\0'};
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int size_needed = WideCharToMultiByte(CP_UTF8, 0, filePath, -1, NULL, 0, NULL, NULL);
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WideCharToMultiByte(CP_UTF8, 0, filePath, -1, file_path_multi_byte, size_needed, NULL, NULL);
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/**
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* @todo 文件类型筛选
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*/
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// 重复文件剔除
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bool duplicated = false;
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for (Input_File_Node *p_file_node = input_dlt_file_list_head; p_file_node != nullptr; p_file_node = p_file_node->p_next)
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if (!strcmp(p_file_node->file_name_str, file_path_multi_byte))
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{
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duplicated = true;
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break;
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}
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if (duplicated)
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continue;
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// 开辟新文件节点
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Input_File_Node *p_new_file_node = (Input_File_Node *)malloc(sizeof(Input_File_Node));
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p_new_file_node->file_name_str = (char *)malloc(strlen(file_path_multi_byte) + 1);
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memset(p_new_file_node->file_name_str, '\0', strlen(file_path_multi_byte) + 1);
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memcpy(p_new_file_node->file_name_str, file_path_multi_byte, strlen(file_path_multi_byte));
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p_new_file_node->p_next = nullptr;
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// 插入文件列表
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if (input_dlt_file_list_head == nullptr)
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input_dlt_file_list_head = p_new_file_node;
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else
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{
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Input_File_Node *p_target_node = input_dlt_file_list_head;
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for (size_t count = 1; count < input_dlt_file_count; count++)
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p_target_node = p_target_node->p_next;
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p_target_node->p_next = p_new_file_node;
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}
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input_dlt_file_count++;
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}
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// 释放拖拽资源（必须调用，否则内存泄漏）
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DragFinish(hDrop);
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return 0;
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}
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case WM_SIZE: // 窗体大小变事件
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if (wParam != SIZE_MINIMIZED) // 窗体未处于最小化时进行重绘
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{
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